高考英语二轮复习青海高考英语七选五专项训练作业含答案

这是一份高考英语二轮复习青海高考英语七选五专项训练作业含答案，共51页。
七选五
Effects of Daylight Saving Time (DST)
We lose an hour of sleep as we turn our clocks an hour ahead on Sunday morning. An hour may not seem like a lot, but it can have significant effects on the body. ____1____
Heart attacks increase after the spring time changes.
A study found, compared to other Mondays during the year, a 25 percent jump in the number of heart attacks occurs on Monday after DST starts. The total number of heart attacks didn’t change for the whole week, though. ____2____ It could be the combined stress of a typical back-to-work Monday.
Tiredness is more common.
Sleep loss can have more obvious health effects, like fatigue and decreased productivity at work. ____3____ It suggests that sleep deprived employees are spending more time on the Internet for relaxation while pretending to do work.
____4____
High school students may be particularly vulnerable to DST-induced sleep loss, since their internal clocks make it difficult for them to shift their sleep patterns an hour earlier. A study found that teens lost significant sleep after the spring time changes, and showed increased sleepiness, delayed reaction time, and more mind wandering on subsequent days.
Terrible headaches may strike.
____5____ It happens especially after the increase in warmth and light. The number of headaches increase around DST changes (in the spring and the fall), or around the summer and winter solstices (至，至日) —the longest and shortest days of the year.
A．Teens are especially exhausted.
B．Depression diagnoses rise in the fall.
C．The pressure just shifted to earlier in the week.
D．Spending time outdoors may provide some protection.
E．For people getting terrible headaches, attacks often occur around seasonal changes.
F．Google searches for entertainment rise sharply on Monday after the spring time changes.
G．Indeed, studies have noted all kinds of effects are associated with DST.

Here we’ve got three tips to help you start an exercise habit that can stick. It’s a lot easier than you think.
____6____
You don’t have to be a marathoner to get meaningful health benefits from exercise. Experts say even daily activities, which include mopping the floor, organizing a room or carrying groceries up the stairs can reduce the risk of diseases like diabetes, heart disease and even some cancers.
So remind yourself that it’s not a choice between hours-long workout or nothing at all. Instead, think of starting an exercise routine like standing up from your chair and sitting back down repeatedly. ____7____
Focus on how exercise makes you feel great
There are so many positives that happen when you move. It improves all the tasks that demand focus and creativity. It helps you generate energy. It boosts mood. ____8____. When you feel better, you will bring more enthusiasm and energy to your work and the people working around you.
Forget long- term benefits like weight loss or better overall health. ____9____. Actually, they’re not super motivational in real-time and can be disheartening when you don’t see results quickly.
Figure out what kind of exercise and workout location makes you feel good
If weightlifting in a crowded gym gives you anxiety, try to get a set of weights for home or follow workout videos on YouTube or ride a bike in the park. ____10____.
A．Start small and every movement counts
B．They often take much longer time to achieve
C．Focus on immediate payoffs like improved mood and energy
D．In short, any movement helps to clear fat and sugar out of blood
E．Remember, when you have more energy, you’re a happier person
F．Keep trying until you find a workout routine that makes you happy
G．No matter how modest those goals are, they create this feeling like I can do more

Ecards are becoming a popular way to send greetings to others, on major holidays, birthdays, and just whenever the mood strikes. A trend occurring in the 2000s was to send cards through email that featured animation on the card and also had music. ____11____ But now there’s much more range to choose from.   
Early musical ecards tended to feature songs that usually weren’t that recognizable. ____12____ People can find sites that offer cards featuring popular modern songs or they may pick from styles like county and western, rhythm and blues, rock, and many others.   
There are some very special musical ecards that feature different kinds of music that isn’t particularly well-known. ____13____ Alternately, people choosing cards could send other tunes from across the world that are inspired by regional music traditions.
Some musical ecards do cost a small amount of money to send. ____14____ For instance, a few companies offer orchestral music from famous orchestras and donate money of card sales to charities benefiting local music programs for kids. Other sites simply profit from selling ecards, and there are many sites that offer free musical ecards.
____15____ Since the early 2000s, ecards have occasionally been used to collect personal information or spread viruses. People receiving an ecard should type in the company website instead of clicking on links, which might take the user to a fake website instead. Besides, make certain not to give out personal information like address or phone number when receiving a card.
A．You don’t have to spend a fortune to send an ecard.
B．There are some cautions regarding using ecard sites.
C．Today’s choices of accompanying music are varied.
D．Ecards have become very popular over the past few years.
E．Such music included things like traditional birthday songs.
F．For example, a musical ecard could have samples of Native American music.
G．Depending upon the company creating the card, the money might be donated.

Practice Good Study Habits
Test yourself. A vital part of studying is repetition. Test yourself on difficult materials during each study session. ____16____ Use these to test your knowledge. If you have a math exam, do practice tests in your math book. If your teacher or professor provides practice exams, take as many as possible.
Start with the hardest subjects. ____17____ Start with this work first. After completing harder materials, studying easier subjects will feel less stressful.
____18____ Study groups can be a great way to take advantage of your studying experience. However, keep in mind that you need to use study groups effectively in order to have the best effect.
Seek out help bravely. ____19____ If you are continually struggling with a particular subject despite studying hard, seek out help from another student, a tutor, a teacher, or a parent. If you’re a college student, there might be free tutoring centers on campus with a particular subject like writing, language, or math.
Take breaks and give yourself rewards. As study is seen as a long process, allowing yourself breaks and rewards can motivate you to study harder. Take breaks every hour to stretch your legs, watch television or do some light reading. Provide rewards at the end of study to motivate you. ____20____
A．Create a good study space.
B．Use study groups effectively.
C．There is no shame in asking for help if you need it.
D．The most difficult subjects require the most mental energy.
E．You’re focused on doing well on this assignment for yourself.
F．Make flashcards with vocabulary words, dates and other facts.
G．For example, treat yourself by ordering takeout after studying three days.

Consumers who want to help the environment can do so most effectively by reducing consumption. Wrapping paper alternatives can reduce the need for various resources to be consumed.____21____No matter what the gift is, there is a wrapping paper alternative to make the gift-giving experience even more special.
One extremely low-cost wrapping paper alternative is to use the Sunday comics. These are bright, colorful, and fun, and will probably be passed around and read as the receiver opens the gift. Children and adults alike will appreciate this attractive wrapping paper alternative. Clear cellophane (玻璃纸) can also be used over the comics newspaper.____22____
Re-used gift wrap, if not damaged, is another free wrapping paper alternative. Torn edges can be cut off and high-quality ribbon will last through many uses. Newsprint roll ends are often given away by newspaper offices and can be decorated with markers, paints, rubber stamps, or stickers.____23____With their permission, you can use their artwork as a wrapping paper alternative.
Any wrapping paper alternative can be made unique by adding decorations that are readily available.____24____Flowers, or stems of a fragrant plant add a special touch to the wrapped gift.
____25____For people with a lack of time or creativity, there are also commercial and available alternatives to gift wrap such as wrapping paper with recycled content or environment-friendly wrapping paper. A thoughtful consumer can wrap gifts in a variety of attractive ways without harming the environment.
A．This will create a smooth, shiny look.
B．Children often like to see their artwork displayed.
C．Old calendars can be used as a wrapping paper alternative.
D．They can also offer a creative and unique presentation for gifts.
E．The gift bag will likely be passed on to wrap a gift for someone else.
F．Shapes, photos, or words cut from magazines can personalize the gift.
G．There are many other ideas for creating a unique wrapping paper alternative.

Humor is important for both kids and adults. The ability to see the humor in an upsetting situation is a valuable skill. So, what should parents do to develop their kids’ sense of humor?___26___
Start the laughter early.
The big smiles that come after parents play jokes with babies are helping the children grow and learn. Teach kids the importance of connections. That’s because being able to understand the funny parts of jokes actually requires children to make connections. ___27___
Help them see the funny in a difficult situation.
___28___ But it’s a useful skill. We are faced with changes on a daily basis. When you can laugh about unexpected challenges, you know you can face those challenges and even find solutions. Are children stressed while studying? Help them make up a joke or funny poem to remember the material.
Keep their screen time to a minimum (最低限度).
Watching social media videos may feel like an easy way to share a funny moment, but it isn’t the best way for children. ___29___ It helps children become creators in humor, not simply receivers of it.
___30___
If kids cross a line when trying out a joke, remind them that a joke isn’t funny if it causes pain to others. When the impact of humor is hurtful, the humor is not suitable. With parents’ help, children can learn to tell the difference between harmful humor and truly funny stuff.
A．These tips can help.
B．Teach them when to tell jokes.
C．Parents can help kids figure those out.
D．Show them where the dividing lines are.
E．Families should do something funny together.
F．Outdoor activities are good choices for families.
G．When hard times happen, finding a reason to laugh can be hard.

Have you ever gone to a museum or a show and been completely blown away by a piece? If you haven’t, go out and get cultured. I’m a student at the College of Visual and Performing Arts where we create all kinds of art every day. ____31____ But I don’t think those people truly know the difficulties and struggles in the process of making art.
First of all, we need to be inspired. You may think that’s easy. In fact, anything can serve as a concept of a work of art. ____32____ Sometimes we will need people, volunteers, bodies to do so and finding willing people to work is hard. Other times we have a clear idea of what we want but we don’t know how to make other people fully understand what we’re trying to get at.
____33____ We need a space to be able to be creative and that can be tricky to acquire. Sometimes we need art supplies or certain equipment and costumes and that can cost money. Even if we do acquire what we need, visions change and mistakes happen so we might not end up using the resources.
The process can take weeks, months, and even years to be fully realized. Once completed, we need to share it and find an audience and provide an environment to display our work. ____34____ What if nobody likes what we created? What if our vision isn’t what we thought though completed?
Creating art is an art in itself. It is really not as easy as many people think. ____35____ It’s how we express ourselves and how we communicate with the rest of the world.
A．Outsiders think our jobs easy.
B．We should be quiet and creative.
C．We might choose other fields as well.
D．Resources are also a huge factor in making art.
E．The hard part comes when we put our ideas into reality.
F．And the negative thoughts love to overpower our minds.
G．It takes time, patience and space when things don’t go as expected.

The aftermath (后果) of an earthquake can be horrible, but it is important that you are attentive and focused after an earthquake happens. Fires, gas leaks, and injuries are all dangers you might face after an earthquake. ___36___ By assessing the safety of your location and following the directions of local authorities, your chances of surviving the aftermath of an earthquake will be much higher.
Check yourself for injuries. ___37___ If you’re bleeding, lift your injury up and put pressure on it. If your injury is serious, call for help using a cellphone or try to get rescuers’ attention.
___38___ Use a cellphone to call for help if you have one. If you can’t use a phone, try knocking loudly on something nearby until rescuers find you.
Aftershocks are smaller earthquakes which follow the main shock of an earthquake. ___39___ So you should prepare to move to a safe location, like an open outdoor space or a structurally sound building.
Exit the building and go to a safer place once the shaking has stopped. The structure of the building you’re in may have been weakened by the main earthquake. ___40___
A．Signal for help if you are trapped.
B．They can cause significant damage.
C．Remain calm as the earthquake occurs.
D．The more prepared you are, the safer you’ll be.
E．Make sure you’re not seriously hurt before you do anything.
F．After the earthquake, you must get medical treatment in time.
G．Therefore, you should leave as soon as possible in case of any aftershocks.

We’re lucky to live in an age when the sum total of human knowledge is pretty available at the click of a button. We’ve never had access to so much information. ____41____. So here are a few strategies to sharped your critical thinking.
Beware of confirmation prejudice. ____42____. In repeated experiments, psychologists have shown we’re much more likely to accept something as evidence if it confirms what we already think we know. And we’re much more likely to discount information if it contradicts our views, which will affect our ability to process information.
Acknowledge small difference. In life, most situations are different and complicated. Acknowledge that can enrich the way that we view the world. For example, what colour is the sky? Well, the obvious answer is blue. But at sunrise or sunset, it can be red. On a cold misty morning, white or grey. ____43____.
Practise intellectual humility (谦逊). One approach to, well, arguing, is to let go of the idea of being “right”. Or at least seriously consider that you might actually be wrong. ____44____. Really try to understand where the other person is coming from. Arguing is just to waste somebody’s time.
____45____. It’s more important than ever to know where your information is coming from.
Engaging in critical thinking isn’t as fun as picking up a pitchfork, or feeling like you’re fundamentally right. But in the long run, it leads to a more curious, educated and harmonious society. which is the biggest win of all.
A．Avoid mistakes
B．Check your sources
C．We all enjoy feeling like we’re right
D．So pay attention to differences in many situations
E．But not all of what’s out there is quite what it seems
F．So don’t rush to decide, and be actively prepared to change your mind
G．Putting yourself in the other person’s shoes can lead to much more productive outcomes

____46____
The best things in life are free. At least, creativity is free. Do you really want to spend $20 on popcorn and movie tickets when you can do much better things? Find out what other things you can do when your financial situation is not so good.
____47____ Just have a look at the fashionable things. Window shopping can be an enjoyable way to relax.
Go for a bus adventure. Take the bus or subway. Plan a full-day trip with friends, get to your destination using cheap transportation, and you could discover all sorts of new places.
____48____ Most museums have free days and give students discounts, so check out their websites before heading over.
Go for a picnic. There’s nothing like a picnic in a park with friends. Bring a huge blanket, homemade sandwiches/snacks, a ball, and have a good time under a nice, shady trees.
Host a movie night. Watching movies on DVD is a lot cheaper than going to the cinema. Invite some friends over. ____49____.
Take a free class. Most yoga, dance, and art studios offer free trial classes or host walk-in days, so grab your friends and go try something new.
____50____ Have all of your friends collect their old stuff, choose a proper place, and make some money selling the things. You’ll have a lot of fun, and in the end; each of you will have a little money to put into your pockets.
A．Visit the museum.
B．Go window shopping.
C．Have an old stuff sale.
D．Host huge get-togethers.
E．Search often on the websites.
F．Hang out without emptying out your wallet.
G．Pop some corn, and watch movies till you fall asleep.

Making a Hobby Stick
A hobby is a great way to stay busy during downtime. ____51____ Here are some tips which may help you stick with your hobbies.
Find a friend to do the hobby with you, Many people find the buddy(同伴) system works when starting a hobby. If you and a friend agree to get into a hobby together, you’ll both be more likely to stick it out. Choose a friend with compatible( 相容的) interests. If you have a friend who’s into extreme sports, while you tend to like staying in with a book, the two of you will not be a good match hobby- wise. Instead, choose an equally bookish friend. ____52____
Look for a community. Many people find it’s easier to stick to a hobby if there’s community support. ____53____ If you like singing, for example, join a local choir. If you are not fond of socializing, you can look for support online. If you’ re a knitter, for example, you can post in forums asking for advice and inspiration involving new knitting projects.
____54____ If your hobby is something you’ve never done before, you’ re unlikely to be good at it right away. Have some patience as it takes time to build up a skill. Try to remind yourself why building this skill set is important to you so you’ll have the motivation to keep going.
Don’t force yourself to continue a hobby you hate. You will never know whether you’ll take to something if you don’t try it. It’s okay if you give a try on a hobby and decide it’ s not for you. ____55____ If it’s doing the opposite, try something else. Remember, the hobby you re most likely to stick with long term is the one you like.
A．Start small.
B．Have some patience.
C．Try joining a class or club related to your hobby.
D．A hobby is meant to help you relax and reduce your stress.
E．The two of you could try joining a local book club together.
F．A friend who loves books will certainly broaden your horizon.
G．However, many struggle to stick with hobbies once they start them.

The thought of a natural disaster can be frightening, but you can prepare yourself and your family with an emergency kit. Though you may not know what kind of disaster will strike or when, ___56___.
●Pack a 3-day supply of food and water. Choose food items with a long shelf life, which don’t require refrigeration or little cooking, such as canned goods and packaged items, in case you don’t have power due to a disaster. Besides, Store 1 gallon (3.8 L) of water per person (and per pet) per day. ___57___, so be sure to include plenty of purified (净化的) water in bottles.
●___58___. Pack emergency blankets. sleeping bags, and a tent or two in case you can’t stay in your home. A multipurpose tool like a knife and a whistle would also be handy to have in your kit.
●Pack electronics and batteries. In the event of a big disaster, be sure to have several flashlights, an AM/FM radio, and extra batteries, ___59___.
●Include medicine and a first aid kit. Prescription and over-the-counter medicines should be included in your kit. ___60___. Pack extra glasses and any other medical supplies that may be needed, like hearing aids with extra batteries.
A．here are some tips for you
B．Add shelter and safety supplies
C．It’s best to store enough water for 2 weeks
D．Tap water may be unsafe to drink in the event of a disaster
E．you’ll be ready for an emergency if you take the time to get well prepared
F．Add a basic first aid kit containing instant ice packs, bandages, scissors and so on
G．because your landline, cell phone will probably not work during a natural disaster

Climate change is one of the biggest issues we face on the planet. It may be pretty tough to convince other people and make a difference. ____61____. There’re many others making the same efforts. Also, there are so many things you can do to help raise awareness and work with others.
Learn as much as you can about climate change. ____62____, you have to know the research. Read through climate and science websites so you can see the most recent research about how it’s affecting our planet. That way, you can always tell people accurate information and find additional resources to help convince other people.
Participate in a climate strike or protest (抗议). A lot of organizations plan marches or protests to show how many people in your area think climate change is a major issue. ____63____. Communicate with others you’re protesting with to connect with like-minded people and learn more about the next steps you can take.
Join a climate organization. If you’re still in school, see if there are any student associations or clubs about climate change. Otherwise, check online or on social media to see if there are community groups in your area that you want to volunteer with. ____64____
Contact your government to prioritize (优先考虑) the issue. Your local and state politicians have the power to make changes on a legal level to help fight against climate change. Contact their offices over the phone or by mail, and ask them what solutions they’re preparing. ____65____, urge them to look into plans and solutions so they know it’s important to you.
A．You can set a good example
B．Set up an organization on social media
C．If they don’t have any measures in place
D．But you aren’t alone in supporting the cause
E．Send them a message to ask how you can be included
F．If you want to influence other people about how serious climate change is
G．Follow some local organizers online and look for events planned in your area

Why You Should Stop Complaining
When living out our daily lives, it’s often easy to blame the world for our problems. ____66____ But the biggest difference is simply our reactions to them. Here are three reasons why you should change your reaction to a situation and stop complaining.
The world owes you nothing.
The world really does have nothing to do with you or anyone else. The planet will continue to exist without you on it. ____67____ However, it really isn’t the case once we’re an adult. The world doesn’t provide us with the same blanket of comfort as our carers once did, which only means one thing: It’s up to us to provide that blanket for ourselves and no one else.
____68____
If you look back at your own life, you’ll begin to realize that everything you have ever done was all a result of the decisions you’ve made sure there may have been people around you who have convinced you to do something. But it all ultimately depends on your decisions. ____69____ Your life is just like a blank canvas, and you are the painter. Start to think about what your hopes and dreams might be and remind yourself daily that it’s all up to you to make things happen.
You can’t be a leader if you behave like a victim.
It’s really easy to put blame on things that are external to you. ____70____ So what can you change? Being a leader in your life takes courage and requires the willingness to face your fears, experience failure, and take complete personal responsibility of everything that happens to you.
A．What are you worrying about?
B．So who’s really to blame?
C．You are in charge of your own life.
D．You are helped by people around you.
E．We were nurtured and looked after as kids.
F．It’s true that there are things in the world we can’t control.
G．As it avoids personal responsibility and allows you to refuse the possibility that you may have things that can be changed.

Food safety is a problem in all places around the world and people in different areas of the world prepare foods in different ways. The WHO released (发布) five simple rules for preparing food in a safe way. They call these rules the “Five Keys to Safer Food”.
Key 1: Keep clean
___71___. People should wash their hands often — before touching food and while they are preparing food. People should wash all surfaces and equipment used for preparing food.
Key 2: Separate raw (生的) and cooked
Raw foods should not touch prepared foods. ___72___.
Key 3: ___73___
People should cook eggs and meat especially carefully. These foods may carry more micro-organisms (微生物) than other foods. Food like soup must be boiled for at least a minute to make it be cooked completely. It is also important that people re-heat cooked food completely.
Key 4: Keep food at safe temperatures
When people are finished with eating, they should keep the left food in a refrigerator below 5ºC and shouldn’t store it for too long. At room temperature, about 20ºC, the amount of micro-organisms can increase very quickly. But temperatures above 60ºC or below 5ºC control the growth of micro-organisms. ___74___.
Key 5: Use safe water and raw materials
___75___. Damaged or old food may develop harmful chemicals as it gets older.
A．Eat healthily
B．Cook completely
C．They can live where we make food
D．This key tells about the importance of washing
E．People should use safe water and choose fresh foods
F．They cannot grow as quickly in a very hot or very cold environment
G．People should use separate equipment and tools for touching and preparing raw foods

In our home it was natural to fear our father. Even our mother was afraid of him. As children, my sister and I thought every family was like that.   ____76____   We discovered we could draw pictures with chalk on our wooden front door. We could have lots of fun, so we started drawing and making lots of pretty pictures all over it. We had a great time. We decided to finish our pictures, knowing Mom would love it.
____77____ We did not understand why, but we knew all about anger, and we were in big trouble. Off we ran to find a place to hide. In our yard it was not hard for two small children to find safety. Together, we hid behind a tree and did not move. Soon we heard the frightened voices of Mom and our neighbours calling out to us. We were afraid of being found. __78__ Those around us became more anxious, and we became more frightened. As we stayed together in the dark, we heard another voice, one we recognized with great fear: our daddy.     __79__ In it we heard something we had never heard before: fear and despair (绝望). Then came his prayers (祈祷). We saw our daddy with tears running down his face, promising God that he would give his life to Him if He would safely return his girls.
Things were different after that. We had a new daddy. It was like the old one was buried that day in the forest. ____80____
A．The praise we expected did not come.
B．The sun set and it began to get dark.
C．Our daddy worked very hard to support the family.
D．Then came the day we found something new and fun to do.
E．Our whole family was changed with a piece of chalk.
F．But there was something different in it.
G．Our mom knew that he cared for us.

It takes time to really get to know someone, but first impressions often determine whether someone is willing to spend more time learning about you. In fact, people's first impressions are made within seven seconds of meeting someone new.____81____
Show respect. People want to feel respected before they show you the same respect.____82____ Be sure to treat everyone around you well, because it shows a lot about who you are.
Be active.____83____ Don't be afraid to show that you are interested in someone.Showing your enthusiasm by smiling or using friendly humor will make you seem easygoing.
____84____ Body language is as important as your words to first impressions. Make sure your posture is good, make strong eye contact and try to express your interest in others.
Try to avoid the bad days. If something unfortunate happens, you don't have to follow a scheduled meeting on the day.____85____ Let them know you don't want unfavorable things to affect them. It'll show your ability to communicate effectively.
A．Make others comfortable.
B．Instead, you can set another time.
C．Pay attention to your body language.
D．Show interest in the person you meet.
E．When you go out for dinner, be polite to waiters.
F．Be polite and show manners with “please and thank you”．
G．Here are some tips on how to make a good first impression.

When I was a little girl, every time my dad was repairing something, he would ask me to hold the hammer. And so we would have a time for a conversation.
I grew up and left home for college and since then, my dad had been calling me every Sunday morning. And when several years later I bought a house, my dad went to paint it by himself for three days in the summer heat.____86____But I was too busy in those days. I did not find any time for a conversation with him.
Four years ago, my dad was visiting me. He spent hours putting together a swing set (秋千) for my daughter. He asked to bring him a cup of tea and have a talk with him. ____87____I didn’t have time for any long conversations that day.
One Sunday morning we had a telephone talk as usual. I was in a hurry, so our conversation was short. ___88___My dad was sent into hospital. Immediately I bought a ticket for a flight and on my way I was thinking about all missed occasions (时刻) to have a talk with him. By the time I arrived, my dad had passed away. ___89___I realized how little I knew about my dad, his deepest thoughts and his dreams.
After his death I learned much more about him, and even more about myself. All he ever asked me was my time. ____90____
A．A few hours later that day came a call.
B．But I had to prepare for a trip that weekend.
C．I never saw my dad drinking or taking a night out.
D．And now his time has all my attention every single day.
E．All he asked was to hold his paint brush and talk to him.
F．Now it was he who did not have time for a conversation with me.
G．I noticed that my dad had forgotten some things that we discussed lately.

As we know, it only takes about 3 minutes for the average house to catch fire and become fully lit. When it comes to a fire, 3 minutes is even scarier. ____91____ Here are some of the signs of electrical fire you can recognize, potentially saving yourself and your home.
____92____ When you notice a burning smell and you don’t know where it’s coming from, this could be one of the signs of electrical fire. Taking a quick survey of the home, if you do know where the origin of the smell is, shut off electricity to this part of the home.
A burnt, discolored switch is a sign of danger. If a switch appears discolored, unfortunately this could mean there’s an electrical fire about to occur. Any discoloration or burning shows an electrical spark has already happened. It is best to call someone immediately to have them look at it. There are some ways to deal with the trouble.____93____
Old wires have been damaged.____94____ That’s because old wires can be damaged as animals chew on them, from the wear and tear of the insulation around the wires, and through worn connections. This is an electrical fire risk that should be replaced or repaired by a professional.
Lights are going down for no reason. Do you ever notice your lights flickering without any reason?____95____ If the lights are dimming too frequently, these could be signs of electrical fire happening very soon.
A．A burning smell comes out of nowhere.
B．You’d better keep calm, just doing nothing.
C．Actually, they should be checked every 4 years.
D．About 20% of the house fire comes from electricity.
E．Shut off electric equipment when electricity is cut off.
F．You can replace it before another more serious one occurs.
G．This shows that something is causing your lights to become dark.

Safe and Easy Workouts for Seniors
As you get older, it’s important to remain active and not to forget your health. There are plenty of all-time best exercises for weight loss, but not all are perfect for older individuals hoping to break a sweat. ___96___
You might believe that certain workouts, like pushups (俯卧撑), are only for the young. In fact, they can be changed to best suit someone’s desired difficulty level. ___97___ Keep your back straight and bend your elbows, bringing your chest toward the wall, and press back. Repeat as desired.
Overhead arm raises can benefit seniors with joint (关节) pain. Using a weighted object such as a bottle of water, position yourself shoulder-width apart. With your shoulders back and arms lifted to 90 degrees, breathe out as you lift the bottles over your head and breathe in as you lower your arms. ___98___
Endurance workouts increase your breathing and get your heart pumping. Dancing can improve the health of your heart and lungs and keep you healthy as you perform daily tasks. ___99___ The goal is to build up to at least 150 minutes of activity a week that makes you breathe hard.
___100___ Higher daily step counts have also been linked with lower all-cause mortality (死亡率). It can also keep you healthy as you observe nature in your own backyard. Schedule a daily walk into your everyday routine. This simple activity can keep your heart healthy, keep you energetic and improve your mood.
A．Taking a walk outside can change your life.
B．Drink enough water each time you work out.
C．Start close to the wall, hands touching the wall.
D．Put on your favorite song(s) and move to the beat.
E．If they seem too light, find a slightly heavier object.
F．Regular exercise is a must to everyone, seniors included.
G．So here are some perfect workouts for seniors aged 50 and up.

























参考答案：
1．G
2．C
3．F
4．A
5．E

【导语】本文是一篇说明文。文章介绍了夏令时对人身心的不良影响。这些不良影响包括心脏病增多、让人易感疲惫、降低青少年的睡眠质量以及严重的头疼可能发作等。
1．空前“We lose an hour of sleep as we tun our clocks an hour ahead on Sunday morning. An hour may not seem like a lot, but it can have significant effects on the body.(星期天早上我们把时钟拨快一小时，就少睡了一个小时。一个小时似乎不是很多，但它会对身体产生重大影响。)”提到提前一个小时起床对人的身体有着很大的影响，空格处应说这些影响与什么有关，G项“Indeed, studies have noted all kinds of effects are associated with DST.(事实上，研究已经注意到各种影响都与夏令时有关。)”中的“effects”和空前的“effects”相一致，说明了这些影响与夏令时有关，因此G选项承接上文，符合语境，故选G。
2．空前说“A study found, compared to other Mondays during the year, a 25 percent jump in the number of heart attacks occurs on Monday after DST starts. The total number of heart attacks didn’t change for the whole week, though.(一项研究发现，与一年中的其他周一相比，夏令时开始后的周一心脏病发作的数量增加了25%。然而，心脏病发作的总数在整个星期内没有变化。)”，空格处应解释为什么会这样，C选项“The pressure just shifted to earlier in the week.(压力只是转移到了一周的早些时候)”中的“早些时候”指的就是空前所说的“周一”，解释了为什么周一心脏病发作的数量增加了25%而总数在整个星期内没有变化，因此C选项承接上文，符合语境，故选C。
3．空后说“It suggests that sleep deprived employees are spending more time on the Internet for relaxation while pretending to do work.(这表明，睡眠不足的员工在假装工作时花更多时间上网放松。)”，因此空格处应说到某种现象，而且是与某网站有关的现象，F选项“Google searches for entertainment rise sharply on Monday after the spring time changes.(春季时间调整后，周一谷歌上娱乐类的搜索量大幅上升。)”说明了与谷歌网站相关的一种现象，其中的“Google searches for entertainment”和空后的“spending more time on the Internet for relaxation”相对应，因此F选项引起下文，符合语境，故选F。
4．空处为本段的小标题。由空格下方的“High school students may be particularly vulnerable to DST-induced sleep loss, since their internal clocks make it difficult for them to shift their sleep patterns an hour earlier. A study found that teens lost significant sleep after the spring time changes, and showed increased sleepiness, delayed reaction time, and more mind wandering on subsequent days.(高中生可能特别容易受到DST导致的睡眠不足的影响，因为他们的生物钟很难让他们提前一个小时改变睡眠模式。一项研究发现，在春季时间改变后，青少年的睡眠明显减少，在接下来的日子里表现出更多的嗜睡、反应迟缓和更多的走神。)”可知，本部分主要介绍了夏令时到来后中学生更容易犯困，反应变慢以及注意力不集中，A选项“Teens are especially exhausted.(青少年尤其疲惫。)”概括了本段内容，可作为小标题，故选A。
5．根据本部分标题“Terrible headaches may strike.(可能会出现严重的头痛。)”可知，本部分主要介绍的是时令变化会引起头疼，空格处应说到关于头疼的内容，E项“For people getting terrible headaches, attacks often occur around seasonal changes.(对于患有严重头痛的人来说，发作通常发生在季节变化前后。)”指出患有严重头疼的人在季节变化时头疼通常会发作，其中的“headaches”和标题的“headaches”相一致，因此E选项符合语境，故选E。
6．A
7．D
8．E
9．B
10．F

【导语】本文是一篇说明文。文章主要介绍了几个能帮助读者轻松坚持锻炼的好主意。
6．根据后文“You don’t have to be a marathoner to get meaningful health benefits from exercise. Experts say even daily activities, which include mopping the floor, organizing a room or carrying groceries up the stairs can reduce the risk of diseases like diabetes, heart disease and even some cancers.(你不必成为一名马拉松运动员才能从锻炼中获得有意义的健康益处。专家说，即使是日常活动，包括拖地、整理房间或把杂货搬上楼梯，也可以降低患糖尿病、心脏病甚至某些癌症等疾病的风险)”可知，本节主要是讲锻炼身体不需要每天坚持跑马拉松。日常家务，甚至经常从椅子上站起来走走都能达到锻炼的目的。故A选项“从小处入手，每个活动都重要”符合语境，故选A。
7．根据上文“You don’t have to be a marathoner to get meaningful health benefits from exercise.(你不必成为一名马拉松运动员才能从锻炼中获得有意义的健康益处)”以及“So remind yourself that it’s not a choice between hours-long workout or nothing at all. Instead, think of starting an exercise routine like standing up from your chair and sitting back down repeatedly.(所以提醒自己，这不是在长时间锻炼和什么都不做之间的选择。相反，可以考虑开始锻炼，比如从椅子上站起来，然后反复坐下来)”可知，本段主要说的是小活动也可以锻炼身体，本句为本段最后一句，进行总结。故D选项“总之，每一个活动都有利于清除血液中的脂肪和能量”符合语境，故选D。
8．根据上文“There are so many positives that happen when you move. It improves all the tasks that demand focus and creativity. It helps you generate energy. It boosts mood.(当你行动的时候，会有很多积极的事情发生。它可以改善所有需要专注力和创造力的任务。它能帮助你产生能量。它能提高心情)”以及后文“When you feel better, you will bring more enthusiasm and energy to your work and the people working around you.(当你感觉更好的时候，你会给你的工作和你周围的人带来更多的热情和能量)”可知，上文提到锻炼不但能提气还能提神，空后又提到这种精神气还能感染你周围的人，故本句承上启下，说明精力充沛的好处。故E选项“记住，你精力充沛时会感到更幸福”符合语境，故选E。
9．根据上文“Forget long- term benefits like weight loss or better overall health.(忘记长期的好处，如减肥或更好的整体健康)”可知，上文提到忘记长期的好处，本句说明原因：它们需要很长时间才能见效。故B选项“它们需要很长时间才能见效”符合语境，故选B。
10．根据上文“If weightlifting in a crowded gym gives you anxiety, try to get a set of weights for home or follow workout videos on YouTube or ride a bike in the park.(如果在拥挤的健身房举重让你感到焦虑，那就试着在家里买一套举重器材，或者关注YouTube上的锻炼视频，或者在公园里骑自行车)”可知，上文说明了要不断尝试各种活动，本句为本段最后一句，应承接上文说明原因：不停地尝试直到找到能让自己满意的活动。故F选项“不停地尝试直到找到能让自己满意的活动”符合语境，故选F。
11．E
12．C
13．F
14．G
15．B

【导语】本文是一篇说明文。文章介绍了音乐电子贺卡的相关信息。
11．根据前文“A trend occurring in the 2000s was to send cards through email that featured animation on the card and also had music.( 21世纪初的一个趋势是通过电子邮件发送卡片，卡片上有动画，也有音乐。)”以及下文“Early musical ecards tended to feature songs that usually weren’t that recognizable.(早期的音乐电子贺卡往往以那些通常不太容易辨认的歌曲为特色。)”可知，空处应该讲的是音乐电子贺卡的相关内容，选项E中的“Such music”对应前文的music，故选项E“Such music included things like traditional birthday songs.(这种音乐包括传统的生日歌。)”符合语意。故选E项。
12．根据前文“Early musical ecards tended to feature songs that usually weren’t that recognizable. (早期的音乐电子贺卡往往以那些通常不太容易辨认的歌曲为特色。)”以及后文“People can find sites that offer cards featuring popular modern songs or they may pick from styles like county and western, rhythm and blues, rock, and many others. (人们可以找到提供流行现代歌曲卡片的网站，或者他们可以从乡村音乐、西部音乐、节奏布鲁斯音乐、摇滚音乐和许多其他音乐中挑选。)”可知，与早期的电子贺卡不一样的是人们现在可以在网站找到很多类型的音乐来作为电子贺卡的音乐，现在的电子贺卡可选择的音乐多种多样，因此可知，选项需要和前文形成对比，又引出下文内容，故选项C“Today’s choices of accompanying music are varied.(如今的伴奏音乐选择多种多样。)”与前文形成对比，引出下文的内容。故选C项。
13．根据前文“There are some very special musical ecards that feature different kinds of music that isn’t particularly well-known.(有一些非常特别的音乐电子贺卡，以不同种类的音乐为特色，这些音乐并不特别出名。)”可知，此处讲的是一些很有特色的电子音乐贺卡，故选项F“For example, a musical ecard could have samples of Native American music.(例如，音乐电子贺卡可以包含美国本土音乐的样本。)”是对前文内容的补充说明，举例说明有特色的音乐电子贺卡有哪种类型的。故选F项。
14．根据前文“Some musical ecards do cost a small amount of money to send.(有些音乐电子贺卡确实要花一点钱才能寄出。)”以及后文“For instance, a few companies offer orchestral music from famous orchestras and donate money of card sales to charities benefiting local music programs for kids. Other sites simply profit from selling ecards, and there are many sites that offer free musical ecards.(例如，一些公司提供著名管弦乐队的管弦乐，并向慈善机构捐赠销售卡的钱，使当地儿童音乐项目受益。其他网站只是从销售电子贺卡中获利，而且有许多网站提供免费的音乐电子贺卡。)”可知，寄送音乐电子贺卡需要花费一些费用，而且费用不一，有些公司会把费用捐给慈善机构，而有些则是自己受益。故选项G“Depending upon the company creating the card, the money might be donated.(根据制作卡片的公司，钱可能会被捐赠。)”引出下文举例的内容，即一些公司会将获得的钱捐给慈善机构。故选G项。
15．根据后文“Since the early 2000s, ecards have occasionally been used to collect personal information or spread viruses. People receiving an ecard should type in the company website instead of clicking on links, which might take the user to a fake website instead. Besides, make certain not to give out personal information like address or phone number when receiving a card.(自21世纪初以来，ecards偶尔会被用来收集个人信息或传播病毒。收到ecard的人应该输入公司网站，而不是点击链接，这可能会把用户带到一个假网站。此外，收到卡片时，确保不要泄露地址或电话号码等个人信息。)”可知，本段主要讲使用电子贺卡网址需要注意几件事情，以确保不被骗或个人信息等不被泄露。故选B项“some cautions”是对下文的内容的总结，因此B项“There are some cautions regarding using ecard sites.(使用ecard网站时有一些注意事项。)”与本段内容吻合，总领该段。故选B项。
16．F
17．D
18．B
19．C
20．G

【导语】本文是说明文。文章讲述了养成好的学习习惯的方法建议。
16．根据段落标题“Test yourself.(测试自己)”可知，本段讲述了通过测试养成好习惯，上文“Test yourself on difficult materials during each study session.(在每次学习过程中对困难材料都要自我测试)”说明要对困难的材料进行测试，下文“Use these to test your knowledge.(用这些测试你的知识)”可推断，空格处讲述测试方式，承上启下，因此推断F项“用单词、日期和其他事实制作抽认卡。”符合语境，讲述了具体的测试方式。引出下文，用这些测试你的知识。故选F。
17．根据段落标题“Start with the hardest subjects.(从最难的课程开始)”可知，本段建议从最难的课程开始，本句说明原因，D项中的“The most difficult subjects”与标题相符，因此推断D“最难的科目需要最多的脑力。”符合语境，故选D。
18．空格处是段落标题，根据下文“Study groups can be a great way to take advantage of your studying experience. However, keep in mind that you need to use study groups effectively in order to have the best effect. (学习小组是利用你学习经验的好方法。然而，请记住，你需要有效地使用学习小组，以获得最佳效果)”可知，本段建议有效地使用学习小组，B项为最佳标题。故选B。
19．根据段落标题“Seek out help bravely.(勇敢地寻求帮助)”可知，本段建议勇敢寻求帮助，C项中“asking for help”与标题相符，C项“如果你需要帮助，寻求帮助并不可耻。”符合语境。故选C。
20．根据段落标题“Take breaks and give yourself rewards.(休息一下，给自己一些奖励。)”可知，本段建议给自己一些奖励，空格上文“Provide rewards at the end of study to motivate you.(在学习结束时提供奖励来激励自己)”可知，G项“treat yourself by ordering takeout”与本段相符，因此推断G项“例如，学习三天后叫外卖犒劳自己。”符合语境，是对上文学习结束后奖励自己的举例说明。故选G。
21．D
22．A
23．B
24．F
25．G

【导语】这是一篇说明文。本文主要介绍了消费者可以通过选取不同的礼物包装纸来保护环境。
21．根据上文“Consumers who want to help the environment can do so most effectively by reducing consumption. Wrapping paper alternatives can reduce the need for various resources to be consumed.(想要帮助环境的消费者可以通过减少消费来最有效地做到这一点。包装纸的替代品可以减少消耗各种资源的需求)”可知，本句承接上文继续说明包装纸替代品的好处，D选项中They指前一句的Wrapping paper alternatives。故D选项“它们也可以提供创意和独特的礼物”符合语境，故选D。
22．根据上文“Clear cellophane (玻璃纸) can also be used over the comics newspaper.(透明的玻璃纸也可以用在漫画报纸上)”可知，本句为本段最后一句，应承接上文评价使用玻璃纸的做法，且A选项中This指前一句使用玻璃纸的做法。故A选项“这会让你看起来光滑、有光泽”符合语境，故选A。
23．根据后文“With their permission, you can use their artwork as a wrapping paper alternative.(在他们的允许下，你可以用他们的作品作为包装纸的替代品)”可知，本句是在说明在谁的允许下，与本段后一句内容存在因果关系，指的是孩子们喜欢自己的作品被展示出来。故B选项“孩子们经常喜欢看他们的艺术作品被展示”符合语境，故选B。
24．根据上文“Any wrapping paper alternative can be made unique by adding decorations that are readily available.(任何包装纸的替代品都可以通过添加现成的装饰而变得独特)”可知，本句与本段前一句内容存在解释关系，说明如何让包装更有特色：从杂志上剪下来的图形、照片、文字都可以使礼物包装更具特色。故F选项“从杂志上剪下的形状、照片或文字可以使礼物个性化”符合语境，故选F。
25．根据后文“For people with a lack of time or creativity, there are also commercial and available alternatives to gift wrap such as wrapping paper with recycled content or environment-friendly wrapping paper. A thoughtful consumer can wrap gifts in a variety of attractive ways without harming the environment.(对于缺乏时间或创意的人来说，也有其他商业或可选的礼品包装纸，例如含有可回收物品的包装纸或环保包装纸。体贴的消费者可以用各种吸引人的方式包装礼物，而不损害环境)”可知，本段主要讲独一无二的包装纸替代方法还有很多，后一句具体举例。故G选项“有许多其他的想法来创造一种独特的包装纸替代品”符合语境，故选G。
26．A
27．C
28．G
29．E
30．D

【导语】本文是一篇应用文。文章就父母如何培养孩子的幽默感给出了四点建议。
26．根据前文“So, what should parents do to develop their kids’ sense of humor? (那么，父母应该做些什么来培养孩子的幽默感呢？)”，可知A选项（这些提示会有所帮助）可以承接上文，并且引出下文的四个小标题的提示。故选A。
27．根据上文“That’s because being able to understand the funny parts of jokes actually requires children to make connections. (那是因为能够理解笑话中有趣的部分实际上需要孩子们建立联系)”，可知下文应该解释如何让孩子建立联系，C选项（父母可以帮助孩子们弄清楚这些）中的those指代的就是上文提到的如何让孩子建立联系，符合题意。故选C。
28．根据小标题“Help them see the funny in a difficult situation. (帮助他们在困难的情况下看到有趣的东西)”和下文“But it’s a useful skill.( 但这是一项有用的技能)”可知空格处是和小标题呼应，应该陈述在困难的情况下看到有趣的东西。G选项（当困难时刻发生时，找到笑的理由可能很难）就是下文提到的这种技能，同时与标题呼应。故选G。
29．根据上文“Watching social media videos may feel like an easy way to share a funny moment, but it isn’t the best way for children. (观看社交媒体视频可能是分享有趣时刻的一种简单方式，但这并不是儿童的最佳方式)”，可知空格处应该提出另外的分享有趣的时刻的方式，结合下文“It helps children become creators in humor, not simply receivers of it.(它帮助孩子们成为幽默的创造者，而不仅仅是幽默的接受者)”中的it可以指代E选项（家人应该一起做些有趣的事。）符合题意。故选E。
30．根据下文“If kids cross a line when trying out a joke, remind them that a joke isn’t funny if it causes pain to others. (如果孩子们在讲笑话时越界了，提醒他们，如果一个笑话给别人带来痛苦，那它就不好笑)”，可知D选项（告诉他们分界线在哪里。）中的lines 和下文的a line相呼应，空格处的小标题能够总结整段意思，D选项符合题意。故选D。
31．A
32．E
33．D
34．F
35．G

【导语】这是一篇议论文。文章开篇提出很多人认为艺术创作的工作很简单，但作者认为这些外行人士不懂艺术创作的艰难之处，并从艺术创作的灵感、资源、时间等方面论述艺术创作工作的不易，最后总结出艺术创作本身就是一件艺术，需要耐心、时间、空间。
31．上文“I’m a student at the College of Visual and Performing Arts where we create all kinds of art every day.(我是一名视觉与表演艺术学院的学生，每天都在创作各种各样的艺术作品)”，下文“But I don’t think those people truly know the difficulties and struggles in the process of making art.(但是我认为那些人并不是真正了解艺术创作过程中的艰辛。)”，说明中间设空处需要填一个意思与其相反相对的表达。A项“Outsiders think our jobs easy.(外人认为我们的工作很容易。)”恰好与之对应，下文的those people指代A项中的Outsiders， 下文的difficult也与A项中的easy对应。故选A项。
32．上文“First of all, we need to be inspired. You may think that’s easy. In fact, anything can serve as a concept of a work of art.(首先，我们需要灵感。你可能认为这很容易。事实上，任何东西都可以作为艺术作品的概念。)”提到了艺术创作需要灵感，而任何东西都可以作为艺术作品的概念，这是容易的部分。而下文“Sometimes we will need people, volunteers, bodies to do so and finding willing people to work is hard.(有时我们需要人、志愿者、人模来做这些，而找到愿意做这些工作的人很难。)”提到很难找到愿意做这些工作的人，属于艺术创作工作中难的部分。因此中间需要有过度，E项“The hard part comes when we put our ideas into reality.(我们要把想法变为实际时，困难就来了。)”恰好能把上下文衔接起来。故选E项。
33．本题设空处位于段首，根据下文“We need a space to be able to be creative and that can be tricky to acquire. Sometimes we need art supplies or certain equipment and costumes and that can cost money. Even if we do acquire what we need, visions change and mistakes happen so we might not end up using the resources.(我们需要一个能够发挥创造力的空间，而这很难获得。有时我们需要一些艺术用品或某些设备和服装，这需要花钱。即使我们获得了我们需要的东西，我们的想法会发生变化，错误也会随之出现，所以我们可能最终不会使用这些资源。)”可知，整段内容都在讲艺术创作需要用到的资源，故段首句需要含括整段内容。结合选项可知，D项“Resources are also a huge factor in making art.(资源也是艺术创作的一个重要因素。)”一方面能概括整段内容，另一方面also与第二段的first of all对应。故选D项。
34．上文“The process can take weeks, months, and even years to be fully realized. Once completed, we need to share it and find an audience and provide an environment to display our work.(这个过程可能需要几周、几个月、甚至几年的时间才能完全实现。一旦完成，我们需要分享它，找个观众，并提供一个环境来展示我们的作品。)”提到了作品完成后会做的事情；下文“What if nobody likes what we created? What if our vision isn’t what we thought though completed?(如果没有人喜欢我们创造的东西怎么办？如果我们的想法并不如我们所想的那样完成了呢？)”是对完成作品后可能出现问题的假设，且都是一些消极的想法，F项“And the negative thoughts love to overpower our minds.(我们的大脑里总是充斥着各种消极的想法。)”恰好与下文的消极设问对应。故选F项。
35．上文“Creating art is an art in itself. It is really not as easy as many people think.(艺术创作本身就是一种艺术。这真的不像许多人想的那么容易。)”总结性地提到了艺术创作并不是那么容易的；下文“It’s how we express ourselves and how we communicate with the rest of the world.(它是我们表达自我的方式，也是我们与世界交流的方式。)”总结了艺术创作对从事艺术的人的意义，故中间同样需要一句总结性的话语，表明艺术创作的不易。G项“It takes time, patience and space when things don’t go as expected.(当事情不像预期那样发展时，需要时间、耐心和空间。)”恰好总结了前面几段的内容，符合文意。故选G项。
36．D
37．E
38．A
39．B
40．G

【导语】这是一篇说明文。主要介绍了地震后应该注意的危险以及应采取的自救方式。
36．下文“By assessing the safety of your location and following the directions of local authorities, your chances of surviving the aftermath of an earthquake will be much higher.(通过评估您所在位置的安全性并遵循地方当局的指示，您在地震后幸存的几率将大大提高)”说明如果提前做准备，那么地震后幸存的几率会更高，D项“你准备得越充分，就越安全。”引出下文，符合题意。故选D。
37．上文“Check yourself for injuries.(检查自己是否受伤)”说明需要检查自己的身体状况，E项“在你做任何事情之前，确保你没有受到严重伤害。”进一步说明要先检查自己身体是否受伤，然后才能采取行动，符合题意。故选E。
38．下文“Use a cellphone to call for help if you have one. If you can’t use a phone, try knocking loudly on something nearby until rescuers find you.(如果你有手机，请用手机打电话求救。如果你不能使用电话，试着大声敲打附近的东西，直到救援人员找到你)”说明要采取方式发出求救信号，A项“如果你被困，发出求救信号。”引出下文，符合题意。故选A。
39．上文“Aftershocks are smaller earthquakes which follow the main shock of an earthquake.(余震是继主震之后发生的较小地震)”说明地震之后还可能发生余震，B项中They指代上文中的余震，B项“它们可能会造成重大损害。”说明余震的危害性，承接上文，符合题意。故选B。
40．上文“The structure of the building you’re in may have been weakened by the main earthquake.(你所在的大楼的结构可能已经被主震削弱了)”说明地震后大楼变得不安全，G项“因此，你应该尽可能快地离开以防有任何余震发生。”说明应该采取的正确方式，符合题意。故选G。
41．E
42．C
43．D
44．G
45．B

【导语】本文是一篇说明文。主要介绍了增强批判性思维的几个策略。
41．上文“We’re lucky to live in an age when the sum total of human know ledge is pretty available at the click of a button.(我们很幸运地生活在一个只需点击一个按钮就可以获得人类知识总量的时代)”说明我们生活在一个信息量大而且信息获取非常容易的社会，以及下文“So here are a few strategies to sharped your critical thinking.(因此，这里有一些策略可以提高你的批判性思维)”说明要采取策略提高批判性思维，E项“但并不是所有东西都和表面看起来一样”与上文构成转折关系，承接下文，符合题意。故选E。
42．上文“Beware of confirmation prejudice.(谨防确认偏见)”说明要防止偏见，以及下文“In repeated experiments, psychologists have shown we’re much more likely to accept something as evidence if it confirms what we already think we know.(在重复的实验中，心理学家表明，如果某件事证实了我们已经知道的东西，我们就更有可能接受它作为证据)”说明对于已经知道的东西，我们就更可能接受它是对的，C项“我们都喜欢感觉自己是对的”引出下文，符合题意。故选C。
43．上文“Acknowledge small difference. In life, most situations are different and complicated. Acknowledge that can enrich the way that we view the world. (承认微小差异。在生活中，大多数情况都是不同和复杂的。承认这些可以丰富我们看待世界的方式)”说明要承认差异，D项中differences是关键词，D项“因此，请注意许多情况下的差异”承接上文，符合题意。故选D。
44．下文“Really try to understand where the other person is coming from.(真正试着去理解其他人的想法)”说明要站在其他人的角度思考问题，G项中Putting yourself in the other person’s shoes表示“设身处地为他人着想”，G项“设身处地为他人着想可以带来更富有成效的结果”引出下文，符合题意。故选G。
45．下文“It’s more important than ever to know where your information is coming from.(知道你的信息来自哪里比以往任何时候都重要。)”说明知道信息的来源是很重要的，B项“核实你的信息来源”引出下文，符合题意。故选B。
46．F
47．B
48．A
49．G
50．C

【导语】这是一篇说明文，文章讲述了一些不花钱或花费很少的钱可以进行的娱乐活动。
46．空处是文章标题，根据全文内容，结合第一段中“Find out what other things you can do when your financial situation is not so good.(看看当你的财务状况不太好的时候你还能做些什么)”可知，文章讲述了一些不花钱或花费很少的钱可以进行的娱乐活动，F项“在不掏空钱包的情况下闲逛”适合作为文章标题。故选F项。
47．根据空后“Just have a look at the fashionable things. Window shopping can be an enjoyable way to relax.(看看那些时髦的东西吧。橱窗购物是一种令人愉快的放松方式)”可知，本段是关于橱窗购物，B项“去橱窗购物”符合语境。故选B项。
48．根据空后“Most museums have free days and give students discounts, so check out their websites before heading over.(大多数博物馆都有免费日，并为学生提供折扣，所以在去之前查看一下他们的网站)”可知，本段是关于去博物馆，A项“参观博物馆”符合语境。故选A项。
49．根据本段主题句“Host a movie night.(举行电影之夜)”可知， 本段是讲述在家举行电影之夜，空前“Invite some friends over.(邀请一些朋友来)”提到邀请一些朋友来家里，G项“爆点爆米花，然后看电影一直到入睡”符合语境。故选G项。
50．根据空后“Have all of your friends collect their old stuff, choose a proper place, and make some money selling the things.(让你所有的朋友收集他们的旧东西，选择一个合适的地方，并出售这些东西赚一些钱)”可知，本段是讲述收集旧物卖钱，C项“举办旧货大甩卖”符合语境，故选C项。
51．G
52．E
53．C
54．B
55．D

【导语】本文是一篇说明文。文章主要介绍了一些坚持业余爱好的方法。
51．空前“A hobby is a great way to stay busy during downtime.(业余爱好是让你在空闲时间保持忙碌的好方法。)”空处承接上文，引出下文“Here are some tips which may help you stick with your hobbies.(这里有一些建议可以帮着你坚持你的爱好。)”，可知本文要介绍的是把业余爱好坚持下去的方法，G项“However, many struggle to stick with hobbies once they start them.(然而，很多人一旦开始了爱好就很难坚持下去。)”中的“However”与空前构成转折关系，“stick with hobbies”与下文的“stick with your hobbies”相吻合。符合上下文语境。故选G项。
52．空前“Instead, choose an equally bookish friend.(相反，选择一个同样喜欢书的朋友。)”空处承接上文，E项“The two of you could try joining a local book club together.(你们两个可以试着一起加入当地的读书俱乐部。)”承接上文说明选择同样喜欢读书朋友的好处。符合上下文语境。故选E项。
53．空前“Many people find it’s easier to stick to a hobby if there’s community support.(许多人发现，如果有社区的支持，坚持一个爱好很容易。)”空处承接上文，引出下文“If you like singing, for example, join a local choir. (如果你喜欢唱歌，比如说，你可以加入当地的一个合唱团。)”，C项“Try joining a class or club related to your hobby.(试着加入一个和你的爱好相关的课程或俱乐部。)”中的关键词“a class or club”与下文的“a local choir”相吻合。符合上下文语境。故选C项。
54．空处位于段首，是本段的主旨句。空后“If your hobby is something you’ve never done before, you’ re unlikely to be good at it right away. Have some patience as it takes time to build up a skill.(如果你的爱好是你从未做过的事情，你不太可能马上就擅长。培养一项技能需要时间，所以要有耐心。)”可知空后主要讲的是在培养爱好方面要有足够的耐心。B项 “Have some patience.(要有耐心。)”符合上下文语境。故选B项。
55．空前“Don’t force yourself to continue a hobby you hate. You will never know whether you’ll take to something if you don’t try it. It’s okay if you give a try on a hobby and decide it’ s not for you. (不要强迫自己继续一个你不喜欢的爱好。如果你不去尝试，你永远不知道你是否会喜欢。如果你尝试了一种爱好觉得它不适合你也没有关系。)”空处承接上文，引出下文“If it’s doing the opposite, try something else.(如果相反，那就试试别的。)”，D项“A hobby is meant to help you relax and reduce your stress.(爱好是用来帮你放松和减轻压力的。)”中的“help you relax and reduce your stress”与下文的“the opposite”意义相反，而且下文中的“it”指代D项中的“A hobby”。符合上下文语境。故选D项。
56．E
57．D
58．B
59．G
60．F

【导语】本文为一篇说明文。文章主要介绍了应对自然灾害，你可以为自己和家人准备一个应急包，并介绍了应急包中应该备有什么物品。
56．根据上文“The thought of a natural disaster can be frightening, but you can prepare yourself and your family with an emergency kit.(想到自然灾害可能会令人恐惧，但你可以为自己和家人准备一个应急包。)”可知，你可以准备一个应急包；而空前“Though you may not know what kind of disaster will strike or when,(虽然你可能不知道什么样的灾难会在什么时候发生，)”的逗号暗示，所选选项的首字母不需要大写；并且空处再次说明做好准备的必要性。选项E“you’ll be ready for an emergency if you take the time to get well prepared(如果你花时间做好充分准备，你就能应对紧急情况)”首字母没有大写，且内容上承上启下。故选E。
57．根据上文“Besides, Store 1 gallon (3.8 L) of water per person (and per pet) per day.(此外，每人(每只宠物)每天需储存1加仑(3.8升)的水。)”下文“so be sure to include plenty of purified(净化的) water in bottles.(所以一定要在瓶子里放足够的纯净水。)”可知，一定要准备足够的水，并保证水的安全性。选项D“Tap water may be unsafe to drink in the event of a disaster(如果发生灾难，自来水可能不安全，不能饮用)”符合上下文内容。故选D。
58．空处为段首句，为本段主要内容。根据下文“Pack emergency blankets. sleeping bags, and a tent or two in case you can’t stay in your home. A multipurpose tool like a knife and a whistle would also be handy to have in your kit.(装上紧急毯子，睡袋和一两个帐篷，以防你不能呆在家里。像刀和哨子这样的多功能工具放在你的工具箱里也很方便。)”可知，本段讲的是带上安全用品。选项B“Add shelter and safety supplies(带上遮蔽物以及安全用品)”与本段大意一致。故选B。
59．根据段首句“Pack electronics and batteries. (封装电子产品和电池。)”可知，本段和电子产品相关；以及空前“In the event of a big disaster, be sure to have several flashlights, an AM/FM radio, and extra batteries,(在发生大灾难的时候，一定要有几个手电筒，一个AM/FM收音机，和额外的电池，)”中的逗号可知，空处单词首字母无需大写。选项G“because your landline, cell phone will probably not work during a natural disaster(因为你的座机、手机在自然灾害中可能无法工作。)”解释了带电池、手电筒和收音机的原因。故选G。
60．根据段首句“Include medicine and a first aid kit.(包括药品和急救箱。)”可知，本段与急救相关；空前“Prescription and over-the-counter medicines should be included in your kit.(你的药箱中应该包括处方药和非处方药。)”建议读者备上药；而空后“Pack extra glasses and any other medical supplies that may be needed, like hearing aids with extra batteries.(带上额外的眼镜和其他可能需要的医疗用品，比如带额外电池的助听器。)”也建议带上一些应急用品。选项F“Add a basic first aid kit containing instant ice packs, bandages, scissors and so on(准备一个基本的急救箱，里面有速冻冰袋、绷带、剪刀等)”也和急救相关，与上下文意一致。故选F。
61．D
62．F
63．G
64．E
65．C

【导语】这是一篇说明文。文章主要介绍了如何为解决气候变化问题尽自己的绵薄之力。
61．根据上文“Climate change is one of the biggest issues we face on the planet. It may be pretty tough to convince other people and make a difference. (气候变化是我们在这个星球上面临的最大问题之一。说服别人并做出改变可能是相当困难的)”和下文“There’re many others making the same efforts. Also, there are so many things you can do to help raise awareness and work with others. (还有很多人也在做同样的努力。此外，你可以做很多事情来帮助提高意识并与他人合作)”可知，现在我们正面临着气候变化危机，并且要说服别人改变很难，但是还有很多人在努力解决这个问题。由此推知，你并非唯一一个关注该事业的人。D项“But you aren’t alone in supporting the cause (但你不是唯一一个支持这一事业的人)”符合题意，承上启下。故选D。
62．根据上文“Learn as much as you can about climate change. (尽可能多地了解气候变化)”和下文“you have to know the research. (你必须了解研究)”可知，上文建议多了解气候变化，下文指出必须了解研究。由此推知，如果我们想要影响其他人，让他们知道气候变化的严重性，就必须了解气候变化。F项“If you want to influence other people about how serious climate change is (如果你想让其他人知道气候变化有多严重)”符合题意。故选F。
63．根据上文“A lot of organizations plan marches or protests to show how many people in your area think climate change is a major issue.   (许多组织计划游行或抗议，以表明你所在地区有多少人认为气候变化是一个重大问题)”和下文“Communicate with others you’re protesting with to connect with like-minded people and learn more about the next steps you can take. (与你正在抗议的人交流，与志同道合的人联系，了解更多你可以采取的下一步行动)”可知，上文提出有人开始开展抗议，下文提出我们可以寻找志同道合的人一起采取行动。由此推知，空处内容陈述我们如何找到志同道合的人。G项“Follow some local organizers online and look for events planned in your area (在网上关注一些当地的组织者，寻找在你所在地区计划的活动)”符合题意。故选G。
64．根据上文“Otherwise, check online or on social media to see if there are community groups in your area that you want to volunteer with.   (或者，上网或在社交媒体上看看你所在的地区是否有你想加入的社区组织)”可知，上文指出看看自己所在的地区是否你想加入的社区组织。由此推知，如果有的话就要询问他们如何加入。E项“Send them a message to ask how you can be included (向他们发送消息，询问如何将您包括在内)”符合题意，选项中的them指代上文 community groups in your area。故选E。
65．根据上文“Contact their offices over the phone or by mail, and ask them what solutions they’re preparing. (通过电话或邮件联系他们的办公室，询问他们正在准备什么解决方案)”和下文“urge them to look into plans and solutions so they know it’s important to you.(督促他们制定计划和解决方案，让他们知道这对你很重要)”可知，上文提出联系政府相关部分的办公室，询问他们有什么解决方案，下文提出督促他们指定计划和解决方案。由此推知，空处陈述，如果政府相关部门没有可以采取的措施，就要督促他们制定。C项“If they don’t have any measures in place (如果他们没有采取任何措施)”符合题意，measures呼应上文和下文的solutions。故选C。
66．F
67．E
68．C
69．B
70．G

【导语】这是一篇说明文。文中提出三个理由，告诫人们停止抱怨。
66．根据上文“When living out our daily lives, it’s often easy to blame the world for our problems. （当我们生活在日常生活中时，往往很容易将我们的问题归咎于世界）”和下文“But the biggest difference is simply our reactions to them.（但最大的区别只是我们对它们的反应）”可知，上文提出我们容易把自己的问题归咎给世界，结合下文表转折意义的but可知，空处内容与下文形成转折，指出有时事情的确不受我们控制。F项“确实，世界上有些事情是我们无法控制的”符合题意，后文的them指代选项中的things in the world we can’t control。故选F。
67．根据下文“However, it really isn’t the case once we’re an adult. （然而，一旦我们成年，情况就不是这样了）”表转折意义的however推知，空处内容与下文形成对比或转折，应陈述我们小时候的情况。E项“我们从小就被培养和照顾”符合题意，kids呼应下文adults。故选E。
68．空处为本段小标题。根据下文“If you look back at your own life, you’ll begin to realize that everything you have ever done was all a result of the decisions you’ve made sure there may have been people around you who have convinced you to do something. But it all ultimately depends on your decisions. （如果你回顾自己的生活，你会开始意识到你所做的一切都是你所做的决定的结果，而你认为这些决定可能是你周围的人说服你去做的。但这最终取决于你的决定）”可知，人生中所有的决定都是我们自己做的。C项“你是自己生活的主宰”可以作为本段小标题。故选C。
69．根据空前“If you look back at your own life, you’ll begin to realize that everything you have ever done was all a result of the decisions you’ve made sure there may have been people around you who have convinced you to do something. But it all ultimately depends on your decisions.（如果你回顾自己的生活，你会开始意识到你所做的一切都是你所做的决定的结果，而你认为这些决定可能是你周围的人说服你去做的。但这最终取决于你的决定）”可知，无论是我们自己做的事情还是别人说服我们去做的事情,最终都取决于我们自己的决定。由此推知，空处提出反问“真正负责的是谁呢？”。B项“所以真正(对生活)负责的是谁呢?”符合题意。故选B。
70．根据上文“It’s really easy to put blame on things that are external to you.（我们很容易把责任推到外在的事物上）”推知，空处陈述这样做的原因。G项“因为它逃避了个人责任，并允许你拒绝你可能让事情改变的可能性”符合题意，as表明上下文的因果关系，且changed呼应下文的change。故选G。
71．D
72．G
73．B
74．F
75．E

【导语】本文是一篇说明文。文章介绍了确保食品安全五大关键要点。
71．根据本段的小标题“Key 1: Keep clean(关键一：保持清洁)”和后文“People should wash their hands often — before touching food and while they are preparing food. People should wash all surfaces and equipment used for preparing food.(人们应该经常洗手——在接触食物之前和准备食物时。人们应该清洗所有用于准备食物的表面和设备。)”可知，本段介绍的是食物和手通过清洗的重要性。D选项“This key tells about the importance of washing(这主要讲述清洗的重要性)”符合题意，故选D。
72．根据前文“Raw foods should not touch prepared foods.(生食不应接触熟食。)”可知，本段介绍的是要将生熟食分开。G选项“People should use separate equipment and tools for touching and preparing raw foods(人们应该使用单独的设备和工具来触摸和准备生的食物)”符合题意，故选G。
73．根据后文“Food like soup must be boiled for at least a minute to make it be cooked completely. It is also important that people re-heat cooked food completely.(像汤这样的食物必须煮至少一分钟，以使它完全煮熟。同样重要的是，人们完全重新加热煮熟的食物。)”可知，本段介绍的是要将食物煮熟。B选项“Cook completely(彻底煮熟)”符合题意，故选B。
74．根据前文“But temperatures above 60ºC or below 5ºC control the growth of micro-organisms.(但是超过60℃或低于5℃的温度控制着微生物的生长。)”可知，微生物在极高或极低温度下会抑制生长。F选项“They cannot grow as quickly in a very hot or very cold environment(它们在非常热或非常冷的环境中不能快速生长)”符合题意，故选F。
75．根据本段小标题“Key 5: Use safe water and raw materials(关键五：使用安全的水和原材料)”和后文“Damaged or old food may develop harmful chemicals as it gets older.(损坏或陈旧的食物随着时间的推移可能会产生有害的化学物质。)”可知，本段介绍了要使用安全的水和食物材料。E选项“People should use safe water and choose fresh foods(人们应该使用安全的水和选择新鲜的食物)”符合题意，故选E。
76．D
77．A
78．B
79．F
80．E

【导语】这是一篇说明文。讲述作者通过一次粉笔事件重新认识她们爸爸的事情。
76．由后文“ We discovered we could draw pictures with chalk on our wooden front door. We could have lots of fun, so we started drawing and making lots of pretty pictures all over it. We had a great time.（我们发现我们可以用粉笔在木制前门上画画。我们可以玩得很开心，所以我们开始在上面画很多漂亮的画。我们玩得很开心。） ”可知，我们用粉笔画得很开心。而E项Then came the day we found something new and fun to do（然后有一天我们发现了一些新的有趣的事情）符合语境。其中“ something new and fun ”和后文“We had a great time”对应。故选D项。
77．由后文“We did not understand why, but we knew all about anger, and we were in big trouble. Off we ran to find a place to hide.（我们不明白为什么，但我们知道关于愤怒的一切，我们遇到了大麻烦。我们跑去寻找藏身之处。）”可知，我们原本以为妈妈会喜欢，结果却迎来了生气。而A项The praise we expected did not come（我们期待的赞扬没有到来）符合语境，其中“The praise”与前文“knowing Mom would love it”对应；“did not come”和后文的“anger”对应。故选A项。
78．由后文“Those around us became more anxious, and we became more frightened. As we stayed together in the dark, we heard another voice, one we recognized with great fear: our daddy. （我们周围的人变得更加焦虑，我们也变得更加害怕。当我们在黑暗中呆在一起时，我们听到了另一个声音，一个我们非常恐惧地认出的声音：我们的爸爸。）”可知，我们当时很害怕，躲在黑暗中不敢出来。而B项The sun set and it began to get dark（太阳落山了，天开始黑了）符合语境，其中“ get dark”和后文“in the dark”对应。故选B项。
79．由下文“In it we heard something we had never heard before: fear and despair . Then came his prayers . We saw our daddy with tears running down his face, promising God that he would give his life to Him if He would safely return his girls.（在声音中，我们听到了我们从未听到过的东西：恐惧和绝望。然后是他的祈祷。我们看到父亲泪流满面，向上帝保证，如果他能安全地把女儿们送回来，他会把自己的生命献给他。）”可知，爸爸当时非常着急，急切渴望自己的女儿们能平安回来。而E项But there was something different in it（但其中有些不同）符合语境，其中“in it”和后文对应，“different ”也表明原本爸爸严厉的声音不在了。故选E项。
80．由前文“Things were different after that. We had a new daddy. It was like the old one was buried that day in the forest. （从那以后情况就不同了。我们有了一个新爸爸。就好像那天老家伙被埋在森林里一样。）”可知，在这件事后，我们重新认识了我们的爸爸。而E项Our whole family was changed with a piece of chalk（我们全家都被一支粉笔改变了）符合语境。其中“ changed”和上文的“ different ”对应，也适合作为结尾句总结全文。故选E项。
81．G
82．F
83．D
84．C
85．B

【导语】这是一篇说明文。文章主要说明了如何给人留下良好第一印象的建议。
81．根据上文“It takes time to really get to know someone, but first impressions often determine whether someone is willing to spend more time learning about you. In fact, people's first impressions are made within seven seconds of meeting someone new.(真正了解一个人需要时间，但第一印象往往决定一个人是否愿意花更多时间了解你。事实上，人们的第一印象是在认识新朋友的7秒内形成的)”结合后文介绍了如何给人留下良好第一印象的建议。故G选项“这里有一些关于如何给人留下良好第一印象的建议”符合语境，故选G。
82．根据上文“Show respect. People want to feel respected before they show you the same respect.(尊重他人。人们在对你表示同样的尊重之前，想要得到尊重)”可知，本句承接上文说明如何表示对他人的尊重。故F选项“要有礼貌，要有礼貌地说‘请’和‘谢谢’”符合语境，故选F。
83．根据后文“Don't be afraid to show that you are interested in someone. Showing your enthusiasm by smiling or using friendly humor will make you seem easygoing.(不要害怕表现出你对某人感兴趣。通过微笑或友好的幽默来展示你的热情，这会让你看起来很随和)”可知，后文提到不要害怕表现出你对某人感兴趣，即本句是在建议对遇到的人表现出兴趣。D选项中Show interest对应后文中you are interested in someone。故D选项“对你遇到的人表现出兴趣”符合语境，故选D。
84．根据后文“Body language is as important as your words to first impressions. Make sure your posture is good, make strong eye contact and try to express your interest in others.(对于第一印象来说，肢体语言和你的语言一样重要。确保你的姿势正确，要有强烈的眼神交流，并试着表达你对他人的兴趣)”可知，本段的主旨是说明肢体语言的重要性，C选项中body language对应后文中Body language。故C选项“注意你的肢体语言”符合语境，故选C。
85．根据上文“Try to avoid the bad days. If something unfortunate happens, you don't have to follow a scheduled meeting on the day.(尽量避免糟糕的日子。如果不幸的事情发生了，你不必在当天遵守预定的会面)”以及后文“Let them know you don't want unfavorable things to affect them. It'll show your ability to communicate effectively.(让他们知道你不想让不好的事情影响到他们。这将显示你有效沟通的能力)”可知，上文提到不必在当天遵守预定的会面，让自己不好的事情影响到别人，即建议另外约时间，故B选项“相反，你可以另定时间”符合语境，故选B。
86．E
87．B
88．A
89．F
90．D

【导语】这是一篇记叙文。讲述了作者的父亲对作者的需求就是希望作者有时间和他谈谈心，而作者总是忙于其他的事，未能如父亲所愿。可是父亲突然去世，使作者空余每天的愧疚和思念。
86．上文“And when several years later I bought a house, my dad went to paint it by himself for three days in the summer heat. (几年后，我买了一套房子，我爸爸在酷暑中独自油漆了三天。)”叙述作者父亲为作者油漆房子，选项E“他所要求的只是拿起他的油漆刷子和他谈话。”承接上文，叙述父亲油漆房子时对作者的要求，引出下文“But I was too busy in those days. I did not find any time for a conversation with him. (但是我在那些日子太忙了。我找不到任何时间和他交谈。)”转折语义，说明作者因繁忙未能达到父亲的要求。语义通顺。故选E项。
87．上文“He asked to bring him a cup of tea and have a talk with him. (他要求给他端杯茶，并和他谈一谈。)”说明父亲希望和作者谈谈心，选项B“但是我必须为那个周末的旅行做准备。”承接上文，转折语义，说明作者又忙于其他事情，引出下文“I didn’t have time for any long conversations that day. (那天我没有时间进行任何长对话。)”，和选项之间是因果关系，说明作者因其他事而未能如父亲所愿。故选B项。
88．上文“One Sunday morning we had a telephone talk as usual. I was in a hurry, so our conversation was short. (一个星期天的早晨，我们像往常一样打了一通电话。我很匆忙，所以我们的谈话很短。)”叙述作者和父亲之间电话里简单的说了几句话，选项A“那天过了几个小时，来了个电话。”承接上文，叙述作者和父亲通电话之后过了几个小时，接到了个电话，引出下文“My dad was sent into hospital. (我爸爸被送进了医院。)”叙述电话内容。语义通顺。故选A项。
89．上文“By the time I arrived, my dad had passed away. (我到的时候，我爸爸已经去世了。)”说明父亲突然因病去世了，选项F“现在是他没有时间和我谈话了。”承接上文，说明去世了的父亲再也不可能和作者谈话了，和上文存在因果关系，逻辑合理。故选F项。
90．上文“All he ever asked me was my time. (他曾经所需求我的只是我的时间。)”说明父亲生前对于作者的需求只是希望作者有时间和他谈谈心，选项D“现在他的时间每天都在引起我的注意（愧疚）。”承接上文，说明作者因为没能满足父亲要求谈话的愿望而每天都在心存愧疚。语义通顺。故选D项。
91．D
92．A
93．F
94．C
95．G

【分析】本文是一篇说明文。文章主要列举了一些你可以识别电气火灾的迹象。
91．根据后文“Here are some of the signs of electrical fire you can recognize, potentially saving yourself and your home.(这里有一些你可以识别的电气火灾的迹象，可能会拯救你和你的家)” 可知，设空处讲述的是与电气有关的房屋火灾。由此可知，D项：About 20% of the house fire comes from electricity.(大约20%的房屋火灾是由电引起的)承接后文。故选D。
92．设空处概括本段内容，为本段小标题。根据后句“When you notice a burning smell and you don’t know where it’s coming from, this could be one of the signs of electrical fire.(当你注意到燃烧的气味，而你不知道它是从哪里来的，这可能是电气火灾的迹象之一)” 可知，A项：A burning smell comes out of nowhere.(不知从哪儿冒出一股烧焦的味道)能够概括本段，其中“A burning smell(一股烧焦的味道)”原词重现。故选A。
93．根据上文“If a switch appears discolored, unfortunately this could mean there’s an electrical fire about to occur. Any discoloration or burning shows an electrical spark has already happened. It is best to call someone immediately to have them look at it.(如果一个开关出现变色，不幸的是，这可能意味着即将发生电气火灾。任何变色或燃烧表明电火花已经发生。最好是立即打电话请人看一下)”及常识可知，我们应该及时更换出现问题的电器开关，以免出现严重的事故。由此可知，F项：You can replace it before another more serious one occurs. (你可以在另一个更严重的问题发生之前把它换掉)符合此处语境。故选F。
94．根据上句“That’s because old wires can be damaged as animals chew on them, from the wear and tear of the insulation around the wires, and through worn connections.(这是因为旧电线会因为动物的咀嚼而受损，包括电线周围绝缘的磨损和磨损的连接)”可知，电线会因为各种原因破损，应该进行常规检修。由此可知，C项：Actually, they should be checked every 4 years.(事实上，它们应该每四年检查一次)符合此处语境。故选C。
95．根据上句“Do you ever notice your lights flickering without any reason?(你有没有注意到你的灯无缘无故地闪烁？)” 可知，G项：This shows that something is causing your lights to become dark.(这表明有什么东西导致你的灯光变暗)符合此处语境，承接上句并解释上句灯无缘无故地闪烁的原因。故选G。
96．G
97．C
98．E
99．D
100．A

【分析】这是一篇说明文，主要为50岁以上的人介绍了几种安全容易的锻炼方式。
96．根据上句“There are plenty of all-time best exercises for weight loss, but not all are perfect for older individuals hoping to break a sweat.(有很多有史以来最好的减肥运动，但并不是所有的都适合希望流汗的老年人)”可知，空格处将引出适合于年长的人的锻炼方式。因此G选项“这里有一些适合于50岁以上的人的锻炼方式。”符合语境。故选G。
97．根据下句“Keep your back straight and bend your elbows, bringing your chest toward the wall, and press back. (使你的后背直立。弯曲你的肘部，使胸部贴朝墙，往后压)”可知此处讲具体的锻炼方式。因此C选项“接近墙，用手去碰墙。”符合语境。故选C。
98．根据上句“Using a weighted object such as a bottle of water, position yourself shoulder-width apart. With your shoulders back and arms lifted to 90 degrees, breathe out as you lift the bottles over your head and breathe in as you lower your arms. (使用一个加重的物体，如一瓶水，使自己与肩同宽。肩膀向后，手臂抬高至90度，当你将瓶子举国头顶时，呼出气；当你放低手臂时，吸气)”可知，上文建议举着重物（例如一瓶水）锻炼。因此E选项“如果这些东西太轻，找一个重一点的东西。”符合语境。故选E。
99．根据上句“Dancing can improve the health of your heart and lungs and keep you healthy as you perform daily tasks. (跳舞能改善你的心肺功能，当你完成日常任务时，让你保持健康)”可知，跳舞时需要音乐。因此D选项“打开你喜爱的歌曲，跟随音乐节奏运动。”符合语境。故选D。
100．根据下文“Higher daily step counts have also been linked with lower all-cause mortality (死亡率). It can also keep you healthy as you observe nature in your own backyard. (较高的每日步数也与较低的全因死亡率有关。当你在自家后院观察自然时，就能让你保持健康)”可知，走路多，全因死亡率低，说明要多去外面走走。因此A选项“常去外面散步可以改变你的生活。”符合语境。故选A。