Module 12【刷速度】(模块过关检测练)-九年级英语上册单元模块满分必刷题（外研版）

九年级英语上册单元模块满分必刷题（外研版）

Module 12【刷速度】(模块过关检测练)

时间：60分钟 满分：100分

一、单项选择（每小题1分，共15分）

1．Being honest is the first ______ if you want to make friends with others.

A．step B．time C．job D．hand

2．At the end of the lecture，I'd like to divide all the students________small discussion

groups.

A．for B．on C．into D．with

3．________pollution is a serious problem to the government.

A．What to deal with B．How to do with

C．What to do D．How to deal with

4．He is never________though he has a poor life.

A．hope B．hopeful C．hopeless D．hoping

5．—The cars give off a lot of waste gas into the air.

—Yes.People should take steps to________air pollution.

A．reuse B．reduce C．recycle D．repeat

6．—Daming，I hate to say this，but the computer has been on for the whole morning.

—Oh，Mum，I'll________it off.

A．get B．take C．switch D．put

7．It's no use________them about it.

A．tell B．to tell C．telling D．tells

8．These are plastic bags. Don’t ____.

A．throw away it B．throw it away

C．throw away them D．throw them away

9．— Playing video games is a waste of time .

— I can’t agree more . There are           meaningful things to do .

A．the most B．the least

C．more D．less

10．Many children are left alone in the countryside. Let’s try our best _______ them.

A．helps B．helping

C．to help D．help

11．---Jane , your bedroom is so dirty .

--- Sorry, I’ll _________ .

A．clean up it B．clean it up

C．clean them up D．clean up them

12．My brother isn't a child ________．

A．more B．longer

C．any more D．no more

13．Reading in bed is ________ your eyes. You'd better not do that.

A．helpful to B．good for

C．harmful to D．harm to

14．If you want to change the world, you have to ________ yourself first.

A．enjoy B．check

C．help D．change

15．—How fine the weather is！Why don't we go out for a picnic?

—________．Let's go!

A．No, thanks B．Nice idea

C．With pleasure D．Thank you

二、语法选择（每小题1分，共10分）

My father told me that there used to be a forest near our town. But the farmer who _16_ the forest cut trees every year until there were no trees left.  

One day, our teacher took us out and _17_ had a picnic in the field where the forest used to be. While eating and drinking, we talked about the beautiful forest we once had. One of my classmates comes from a tribe（部落）that lived in the west of our country. He told us _18_ he thought about the change. “It makes me really _19_ to learn that a forest has disappeared. My people have taught me to always think seven generations（七代人）in the future. That’s to say, when we do something to the land, we should never hurt it. We must care about nature and leave it good enough _20_ later generations. ”

 When we heard what he said, we kept silent first. “Let’s _21_ some trees!” said our teacher after a moment. “It will be _22_ good start!” So that’s what we did. For the rest of the spring, we worked hard _23_ we planted thousands of trees.  

That _24_ five years ago. Today, when I stand in that field which was once empty, I see trees about as __25__ as I am. It’s great to see how we’ve changed the field. It taught us the power of thinking about the future.

16．A．owned B．owns C．will own D．is owning

17．A．us B．our C．we D．ourselves

18．A．when B．why C．which D．what

19．A．sadness B．sadly C．sad D．sadder

20．A．of B．to C．through D．over

21．A．planted B．plant C．to plant D．planting

22．A．the B．/ C．a D．an

23．A．and B．so C．but D．or

24．A．was B．were C．is D．has been

25．A．taller B．tallest C．tall D．the tallest

三、完形填空（每小题1分，共10分）

（2022·山东·高青县教学研究室九年级期末）阅读下面短文，从每小题A、B、C、D中选出一个能填入文章中相应空白处的最佳答案。

When people think of tigers, they think: strong and dangerous. But now, the big animal is calling for our help.

There were once eight kinds of ____26____ in the world, but three died out during the 20th century. In the last 70 years, the ____27____ of Siberian tigers (东北虎) has gone from as many as 300 to ____28____ 22 somewhere. The Siberian tiger has been ____29____ dying out completely. If the government doesn’t make any efforts, it’s quite ____30____ that there will be no more Siberian tigers in China in ten to twenty years. In order to double the number of wild tigers in the ____31____ ten years, the World Wildlife Fund (世界自然基金会) has started a program recently. It ____32____ save wild tigers and put an end to tiger hunting and killing. China, together with twelve other ____33____, has joined in.

Wild animals, such as red deer and wild pigs, are the main ____34____ of the tigers. The hunting of these animals is the greatest threat (危险) to tigers. So the most important thing is ______35______ the animals that tigers eat. To protect the wild tigers, we need to call on more people to stop eating and hunting wild animals.

26．A．pigs B．tigers C．deer D．dogs

27．A．name B．kind C．number D．size

28．A．less than B．more than C．bigger than D．larger than

29．A．in need of B．in danger of C．in front of D．in the middle of

30．A．possible B．impossible C．necessary D．important

31．A．last B．next C．past D．first

32．A．aims to B．used to C．refuses to D．likes to

33．A．cities B．provinces C．countries D．villages

34．A．friends B．food C．members D．children

35．A．to sell B．to kill C．to save D．to buy

四、阅读单选（每小题2分，共30分）

A

Ben and his classmates are watching a DVD about the environment. This is the introduction to them.

A long time ago, most towns and villages were very small. The number of people who lived in every country was much smaller than it is today, too. There was no heavy industry, but only agriculture, arts and crafts (手艺). And none of these things damaged our environment. People did not use chemicals. There were no motor vehicles. There were no factories. There was, therefore, very little pollution.

Sadly, our environment is much dirtier than it was in the past. This is a problem because the best way for us to be healthy is to live in a clean environment.

The air and the water are much dirtier than they used to be. The air is full of pollutants (污染物) of various kinds-smoke from cars, factories and things like insect sprays (喷雾). The water is polluted by chemicals from factories and fuel from ships. These mean that we are gradually destroying one of our major food sources-the oceans of the world.

In the DVD, we will try to find the ways to make our environment cleaner and the ways to stop future pollution. We hope you will learn how to make the world a cleaner and healthier place.

36．There was less pollution in the past because _________.

A．the towns were smaller

B．people didn’t have DVDs

C．people didn’t have anything that damaged the environment

D．people know how to make the environment cleaner

37．People had ________ before heavy industry.

A．agriculture and motor vehicles

B．factories, arts and crafts

C．agriculture, factories and chemicals

D．agriculture, arts and crafts

38．Oceans are important because ________.

A．they are major sources of chemicals

B．they are major sources of food

C．they are major sources of fuel

D．they are major sources of pollutants

39．The purpose of the DVD is to ________.

A．find the ways to make the environment cleaner and stop future pollution

B．tell people about the past and find ways to teach them about the future

C．show people how to make a DVD about the environment

D．explain why there is more pollution nowadays

40．What is the main idea of this passage?

A．Our environment is more polluted than it used to be

B．Most towns and villages used to be smaller than they are now

C．The DVD about the environment

D．Our oceans are gradually being destroyed by pollution

B

（2022·广东·佛山市南海外国语学校三模）Climate change is a big problem humans are facing. How can we deal with it? Reducing carbon emissions (碳排放) is important. But what if we could capture carbon dioxide (CO2) from the air and use it to do other things?

Recently, SpaceX founder Elon Musk said that his company is working on a new program. It’s going to take CO2 out of the air and turn it into rocket fuel.

“It will not only be good for Earth, but will also be important for Mars,” Musk tweeted. The air on Mars is made up of 95 percent CO2. If we could turn CO2 into fuel, we could travel the long journey from Mars back to Earth in the future.

The idea may sound strange but it’s not totally crazy. There are already some technologies that might help with this. According to Di-Jia Liu, a chemist at the Argonne National Laboratory in the US, the carbon atoms (原子) in CO2 and the hydrogen (氢) atoms in water can be combined to make methane (甲烷) or ethanol (乙醇). They could be used as fuel. If we do this on Mars, energy from the sun might be used as a catalyst (催化剂).

The idea will also make space travel more eco-friendly. “If the CO2-based fuel could be used in a rocket launch, we could prevent 715 tons of CO2 from being emitted into the air,” said Stafford Sheehan from Air Company, a US company that focuses on CO2 capture technologies.

41．SpaceX is working on ______.

A．Reducing CO2 emissions B．Building a new rocket

C．Turning CO2 into fuel D．Traveling long distances on Mars

42．What advantage will the program bring if it succeeds?

A．It will take energy from the sun.

B．It will take 95 percent of CO2 out of the air.

C．It will make it easier to travel from Mars to Earth.

D．It will create free catalysts for chemical experiments.

43．The underlined word “combined” in the passage means ______ in English.

A．turn into B．join together C．divide into D．separate from

44．From what Stafford Sheehan said, we can learn that ______.

A．scientists use 715 tons of CO2 to launch a rocket

B．rocket launching is an environmentally-friendly activity

C．there will be no CO2 emissions anymore

D．SpaceX’s idea would be good for the environment

45．What can be the best title of the passage?

A．Visit Space with CO2 B．Climate change we face

C．Space travel in the future D．A new program on Mars

C

（2022·山东聊城·二模）Is the world too crowded? Well, that’s a hard question to answer. It’s a matter of the perspective (视角). In Montana, you might drive a mile in any direction and might not see another human being. In Macao, 60,000 people live in every square mile!

    What is true is that the world’s population doesn’t stay the same. It has been increasing fast. That’s in part because in each generation (代), there are more people who then have children than the last generation.

    Five hundred years ago, the population of the world was about 460 million. In 1900, the world’s population was under 2 billion (十亿). Right now it is doubling every 40 years. That means, if this rate of growth continues, when you are a parent, there will be twice as many people on earth as there are now. Soon the world’s population will probably reach 8 billion.

    Some people worry about that! But there is a lot of disagreement about just how many people on earth means too many people. But everyone agrees that the more people there are, the more resources (资源) the world needs to offer and the more need there is to think carefully about how we live and use the earth’s resources.

46．From the first paragraph we can know that ________.

A．Montana is too crowded

B．Macao is too crowded

C．the world is too crowded

D．the world is not too crowded

47．The population is increasing fast partly because ________.

A．people live longer than before

B．there are fewer wars than before

C．medicine is developing faster than before

D．more couples now would like to have children than before

48．What was the world’s population in 1900? ________

A．450 million. B．Less than 2 billion.

C．40 billion. D．7 billion.

49．The writer thinks that with the population increasing, we should ________.

A．find more resources B．use more resources

C．think about our ways of living D．move to other places

50．From the passage we can learn that the writer ________.

A．thinks the world already has too many people

B．thinks the world can feed no more than 8 billion people

C．is not sure when the world’s population will reach 8 billion

D．is not sure what the world needs to feed so many people

五、用所给单词的正确形式填空（每小题1分，共10分）

51．It is ________ (possible) for me to be there before eight. The traffic is too heavy now.

52．A lot of ________ (art) perform plays, concerts and operas there.

53．The river has ________ (pollute) for a long time.

54．（2022·上海·九年级单元测试）Floods are the No. 1 natural ________ in China during the summer season every year.（kill）

55．（2022·上海·九年级单元测试）Every ________ must follow the rules while enjoying the view. (visit)

56．（2022·江苏·九年级课时练习）Why not eat _________ (little) and exercise _________ (much)?

57．—Do you know what ________(cause) this terrible traffic accident?

—Maybe the driver drove the car with tiredness.

58．The farmers were worried because the heavy rain did much damage to their ________（crop）.

59．The students from a green school are helping collect waste paper and bottles for ________ (recycle).

60．It’s better to use a ________ (reuse) china cup because it can be used again.

六、短文语境提示填空（每小题1分，共10分）

阅读下面的短文，用括号内所给词的适当形式填空，必要时可加助动词。

Many years ago there were no clocks and ___61___ (know) the time was not so easy. Over the centuries people have ____62____ (develop) different ways of telling the time.

About 3,500 ____63____ (year) ago, the Egyptians made a sundial. It was smaller than the sun clock and could measure (测量) the time for half a day.

On ____64____ (cloud) days or at night it was impossible to tell the time with a sun clock or a sundial.Water clocks were the ___65___ (one) clocks not to use the sun. The idea is simple. Water flows (流动) from one container (容器) to another. When the water reaches a certain level, it moves a lever (控制杆) and this shows the hours. The Egyptians used water clocks about 3,400 years ago. These clocks were popular in the Middle East and China but they ____66____ (fail) to keep accurate (精确的) time.

In the 13th century, the mechanical clock ____67____ (invent). This was more accurate, but was expensive to make. Over the next few centuries it was developed. For example, springs (发条) were added around 1500. This improved accuracy and allowed clocks to be smaller.

In 1927, the first quartz clock was developed. Clocks became ____68____ (cheap) to build and own. People began depending on them more and more to run businesses, markets and so on.

More recently, in 1956, came the digital clock. And nowadays satellites (人造卫星) send our cell phones the time to the exact second. There has been a lot of progress in time keeping but some things never ____69____ (change). Most of us still have trouble _____70_____ (get) out of bed on time and not missing appointments.

七、材料作文（共15分）

71．地球是我们赖以生存的空间，环境的好坏直接影响着人们的工作、学习、生活等，同样我们的工作、学习、生活等一系列活动又使环境污染越来越严重……那么，我们要如何保护我们的环境呢？

请以“How to protect our environment?”为题写一篇短文。

提示：存在以下环境问题：

1. 水污染越来越严重；

2. 砍伐森林严重；

3. 大气污染严重等。

要求：1. 不少于80词；标题和开头已给出，不计入总词数；

2. 语言流畅、表达正确、逻辑清晰。

How to protect our environment?

The environmental pollution is more and more serious today. ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

参考答案：

1．A

【详解】句意：如果你想与其他人交朋友，第一步是要诚实。

考查名词辨析。step步骤；time时间；job工作；hand手。根据“... if you want to make friends with others.”可知此处介绍交朋友第一步应该做的事。故选A。

2．C

【详解】句意“在演讲的最后，我想把所有的学生分成几个小的讨论组”。根据divide...into...把……分成……。故选C。

3．D

【详解】句意“如何处理污染是政府的一个严肃的问题”。deal with通常与how搭配；do with通常与what搭配。故选D。

4．C

【详解】句意“尽管他生活贫困，但他从未失去希望”。A.希望，名词；B.有希望的，形容词；C>没有希望的，形容词；D.希望，hope的现在分词。根据though以及never可知，故选C。

5．B

【详解】句意“-汽车把所有废气排到空气中。-是的，人们需要采取措施减少空气污染”。本题考查动词辨析。A.再次使用；B.减少；C.循环；D.重复。根据句意，故选B。

6．C

【详解】句意“-大明，我讨厌，但不得不这么说，电脑已经整整开了一个上午了。-哦，妈妈，我去关掉它”。A.get off下车；B.take off起飞，脱下；C.switch off关闭；D.put off推迟，拖延。根据句意，故选C。

7．C

【详解】句意“告诉他们这个已经没有用了”。根据“it is no use doing sth做某事没有用”可知，故选C。

8．D

【详解】句意：这些是塑料袋子，不要乱扔它们。

​本题考查动词短语及人称代词的用法。throw away是动副结构的短语，代词作宾语时应放在动词和副词之间，排除AC选项； plastic bags是可数名词复数，应用them替代,排除B，故选D。

9．C

【详解】试题分析：句意：-玩电子游戏是浪费时间。-我不能同意更多。有更多的有意义的事情可做。the most最多的；the least 最少的；more 更多的；less更少的。结合语境，所以选C。

考点：考查形容词辨析。

10．C

【详解】句意：很多孩子被独自留在了农村。让我们尽我们的最大努力去帮助他们。

考查非谓语动词。helps帮助，动词的第三人称单数形式；helping动名词或现在分词形式；to help动词不定式；help帮助，动词原形。句中使用了句型try one’s best to do sth.“尽某人最大努力去做某事”，这里应用动词不定式。故选C。

11．B

【详解】试题分析：—珍，你的卧室太脏了。—对不起，我会把它打扫干净。clean up（打扫干净）是动词加副词构成的词组，宾语是代词要放在词组中间，所以排除A、D；代替上文的bedroom用代词it，故选B。

考点：考查动词词组

12．C

【详解】句意“我的弟弟不再是个孩子了”。not...any more=not...any longer=no more=no longer不再。根据句中的not可知，用any more或any longer，故选C。

13．C

【详解】句意“在床上阅读对眼睛不好，你最好不要那么做”。be helpful to对……有帮助；be good for对……有好处；C.is harmful to对……有害；D.do harm to对……有害。且空前有be，故选C。

14．D

【详解】句意：如果你想改变世界，你必须首先改变你自己。

考查动词辨析。enjoy喜欢；check检查；help帮助；change改变。根据“If you want to change the world, you have to … yourself first”可知，改变你自己是改变世界的前提，故选D。

15．B

【详解】句意“-天气真好，为什么不出去野餐呢？-好主意，让我们走吧”。A.不用，谢谢。表示婉拒；B.好主意；C.我乐意，用于回答would you please do...;D. 谢谢。根据句意，故选B。

16．A    17．C    18．D    19．C    20．B    21．B    22．C    23．A    24．A    25．C

【导语】本文是一篇记叙文。作者居住的城镇附近原本有一片森林，但是被砍伐了。于是在老师的呼吁下，同学们一起在那里播种、栽树、几年后，森林又恢复了原貌。

16．句意：但是拥有这片森林的农民每年都要砍树，直到把树都砍光为止。

owned动词过去式；owns动词三单；will own一般将来时；is owning现在进行时。根据“were”可知，此句是一般过去时，动词用过去式，故选A。

17．句意：有一天，我们的老师带我们出去，我们在原来是森林的地方野餐。

us我们，宾格；our我们的，形容词性物主代词；we我们，人称代词主格；ourselves我们自己。此空在句中作主语，应填人称代词主格，故选C。

18．句意：他告诉我们他对这个变化的看法。

when何时；why为什么；which哪一个；what什么。此空作动词thought的宾语，应填what引导宾语从句，故选D。

19．句意：得知一片森林消失了，我真的很难过。

sadness难过，名词；sadly难过地，副词；sad难过的，形容词原级；sadder更难过的，形容词比较级。make sb+形容词，表示“使某人……”，无比较之意，应填原级，故选C。

20．句意：我们必须关心自然，把它好好地留给后代。

of……的；to到；through通过；over在……之上。be+形容词+enough to do sth，表示“足够……做某事”，故此空应填to。故选B。

21．句意：让我们种一些树吧！

planted动词过去式；plant动词原形；to plant动词不定式；planting动名词或现在分词。let’s do sth“让我们做某事”，此空应填动词原形，故选B。

22．句意：它将会是一个好的开始。

the这个/那个；/不填；a一个，用于以辅音音素开头；an一个，用于以元音音素开头。此处表示“一个好的开始”，表泛指，且good是以辅音音素开头的，故选C。

23．句意：在这个春天剩下的时间里，我们努力工作，种了成千上万棵树。

and和；so因此；but但是；or或者。空格前后是并列关系，用and连接，故选A。

24．句意：那是五年前的事了。

was一般过去时，主语是单数形式；were一般过去时，主语是复数形式或第二人称；is一般现在时，主语是单数形式；has been现在完成时。根据that可知，此空应填单数形式，根据five years ago可知，此句是一般过去时，故选A。

25．句意：我看到的树大约和我一样高。

taller更高的，比较级；tallest最高的，最高级；tall高的，原级；the tallest最高的，最高级。as…as“如……一样”，中间接原级，故选C。

26．B    27．C    28．A    29．B    30．A    31．B    32．A    33．C    34．B    35．C

【导语】本文主要介绍了中国东北虎数量急剧下降，以及政府采取的具体保护措施。

26．句意：过去全世界有八种老虎，但是在20世纪，有三种已经灭绝了。

pigs猪；tigers老虎；deer鹿；dogs狗。根据上文“When people think of tigers, they think: strong and dangerous.”可知这里说的是老虎，故选B。

27．句意：在过去的70年里，东北虎的数量从300多只下降到了不足22只。

name名字；kind种类；number数量；size大小。根据“Siberian tigers (东北虎) has gone from as many as 300 to less than 22 somewhere.”可知，此句是表达东北虎的数量，number符合题意，the number of“……的数量”，故选C。

28．句意：在过去的70年里，东北虎的数量从300多只下降到了不足22只。

less than比……少，不足；more than多于，比……多；bigger than比……更大；larger than比……更大。根据“Siberian tigers (东北虎) has gone from as many as 300 to…22 somewhere. The Siberian tiger has been…dying out completely.”可知，东北虎的数量比过去少了，不到22只，less than“少于”符合题意，故选A。

29．句意：东北虎处于灭绝的危险中。

in need of需要；in danger of处在……的危险中；in front of在……前面；in the middle of在……中间。根据“Siberian tigers (东北虎) has gone from as many as 300 to less than 22 somewhere”可知，东北虎处于灭绝的危险中，故选B。

30．句意：如果政府不做任何努力，很可能在10到20年的时间内，在中国就不再有东北虎了。

possible可能的；impossible不可能的；necessary必要的；important重要的。根据“The Siberian tiger has been in danger of dying out completely.”可知，东北虎处在灭绝的危险中，由此可知，如果不努力保护它们，它们有可能完全灭绝，possible符合题意，故选A。

31．句意：为了能让野生老虎的数量在接下来的10年里增加一倍，世界野生动物基金会最近开始了一个项目。

last上一个；next接下来；past过去的；first第一，最初。根据“In order to double the number of wild tigers in the…ten years, the World Wildlife Fund (世界自然基金会) has started a program recently.”可知是，在接下来的10年，故选B。

32．句意：它的目的是拯救野生的老虎，结束老虎被猎杀的现状。

aims to目的；used to过去常常；refuses to拒绝；likes to喜欢。根据“the World Wildlife Fund (世界自然基金会) has started a program recently.”.和“save wild tigers and put an end to tiger hunting and killing.”可知，这个项目的目的是拯救野生老虎，故选A。

33．句意：中国和其他12个国家加入了这个项目。

cities城市；provinces省；countries国家；villages 乡村。根据“China, together with twelve other”可知是其他的国家，这里应该填一个和“China”并列的词，countries符合题意，故选C。

34．句意：野生动物，如马鹿和野猪是老虎的主要食物。

friends朋友；food食物；members成员；children孩子。根据“Wild animals, such as red deer and wild pigs, are the main …of the tigers.”可知，马鹿和野猪等野生动物是老虎的主要食物，故选B。

35．句意：因此最重要的事情是拯救老虎吃的动物。

to sell卖；to kill杀死；to save拯救；to buy买。根据“Wild animals, …The hunting of these animals is the greatest threat (危险) to tigers.”可知，老虎以鹿和野猪等为食，所以拯救拯救这些动物很重要，故选C。

36．C    37．D    38．B    39．A    40．A

【导语】本文是对一张关于环境的DVD的介绍。

36．细节理解题。根据第二段“There was no heavy industry, but only agriculture, arts and crafts. And none of these things damaged our environment.”可知，在过去没有可破坏环境的东西，故选C。

37．细节理解题。根据第二段“There was no heavy industry, but only agriculture, arts and crafts.”可知，在重工业之前，仅有农业和手工艺业，故选D。

38．细节理解题。根据第四段“ These mean that we are gradually destroying one of our major food sources-the oceans of the world.”可知，海洋是我们重要的食物来源，故选B。

39．细节理解题。根据最后一段“In the DVD, we will try to find the ways to make our environment cleaner and the ways to stop future pollution.”可知，DVD的目的是找到使环境更加清洁、停止未来污染的方法，故选A。

40．主旨大意题。本文是通过对一张关于环境的DVD的介绍，告诉我们现在的环境污染比过去严重，故选A。

41．C    42．C    43．B    44．D    45．A

【导语】本文主要介绍了SpaceX公司的新项目，将会把二氧化碳转化成燃料，这将使从火星到地球的旅行更容易，也有利于环保。

41．细节理解题。根据第二段的内容，尤其是第二句“It’s going to take CO2 out of the air and turn it into rocket fuel.”可知SpaceX的新项目是把空气中的二氧化碳转化为火箭燃料。故选C。

42．推理判断题。根据第三段的最后一句“If we could turn CO2 into fuel, we could travel the long journey from Mars back to Earth in the future.”可知若能将二氧化碳转化为燃料，我们未来就可以从火星回到地球，可推断出如果这个项目能成功的话，它将使从火星到地球的旅行变得更容易。故选C。

43．词义猜测题。根据第四段中“According to Di-Jia Liu, a chemist at the Argonne National Laboratory in the US, the carbon atoms (原子) in CO2 and the hydrogen (氢) atoms in water can be combined to make methane (甲烷) or ethanol (乙醇).”和常识可知二氧化碳中的碳原子和水中的氢原子可以合成甲烷或乙醇，因此这里“combined”可以理解为“结合”。故选B。

44．推理判断题。根据最后一段中Stafford Sheehan的话“If the CO2-based fuel could be used in a rocket launch, we could prevent 715 tons of CO2 from being emitted into the air”可知如果以二氧化碳为基础的燃料可以用于火箭发射，我们可以防止715吨二氧化碳排放到空气中，可推断出Stafford Sheehan认为SpaceX的想法将对环境有益。故选D。

45．最佳标题题。通读全文可知本文主要介绍了SpaceX公司的新项目，将会把二氧化碳转化成燃料，这将使从火星到地球的旅行既更容易又环保，根据选项可知“带着二氧化碳遨游太空”可以作为本文标题。故选A。

46．B    47．D    48．B    49．C    50．D

【导语】文主要探讨了和世界人口有关的话题。

46．推理判断题。根据第一段中“In Montana, you might drive a mile in any direction and might not see another human being. In Macao, 60,000 people live in every square mile!”可知，在Montana你向任何方向开车一英里，可能看不到任何人，但是在澳门每平方英里有6万人，由此可知，澳门的人多，太拥挤了。故选B。

47．细节理解题。根据第二段中“That’s in part because in each generation (代), there are more people who then have children than the last generation.”可知，人口快速增长的部分原因是在每一代人中，有孩子的人比上一代更多。故选D。

48．细节理解题。根据第三段中“In 1900, the world’s population was under 2 billion (十亿).”可知，在1900年世界的人口不足20亿。故选B。

49．细节理解题。根据最后一段中“But everyone agrees that the more people there are, the more resources (资源) the world needs to offer and the more need there is to think carefully about how we live and use the earth’s resources.”可知，每个人都赞同，面对人口增长的问题，我们需要认真考虑自己的生活方式。故选C。

50．推理判断题。根据最后一段中“But there is a lot of disagreement about just how many people on earth means too many people.”可知，关于地球上有多少人才算多，人们的观点存在着许多分歧。由此可知，作者不确定世界需要什么来养活这么多人。故选D。

51．impossible

【详解】句意：我不可能在八点前到那里。现在交通太拥挤了。possible“可能的”，形容词。根据“The taffic is too heavy now”可知，目前交通很拥挤，由此推测无法在八点前到那里，impossible表示“不可能的”，作表语。故填impossible。

52．artists

【详解】句意：许多艺术家在那里演出戏剧，音乐会和歌剧。art“艺术”，名词。根据“A lot of ...(art) perform plays...”可知，此处指艺术家，把art变为artist“艺术家”；“A lot of”后接复数名词，故填artists。

53．been polluted

【详解】句意：小河已经被污染很长时间了。主语“The river”与动词pollute之间是动宾关系，结合“for a long time”及“has”可知用现在完成时的被动语态，其结构为has been done。故填been polluted。

54．killer

【详解】句意：洪水是中国每年夏季排名第一的自然杀手。kill动词，译为“杀”。分析句子可知，此处用于形容词natural之后，所以应用其名词形式killer作表语。故填killer。

55．visitor

【详解】句意：每个游客在欣赏风景时都必须遵守规则。visit“参观”，动词原形。根据“Every”可知，其意思为“每一”，故空格处要用一个名词的单数形式，结合句意及所给单词可知，每个游客在欣赏风景时都必须遵守规则，此处是“游客”，其英文表达为“visitor”。故填visitor。

56．     less     more

【详解】句意：为什么不少吃点，多运动。根据情境可知，应该使用比较级表示“少吃点，多运动”，应该使用“little”和“much”的比较级“less”和“more”。故填less；more。

57．caused

【详解】句意：——你知道是什么导致了这场可怕的交通事故吗？——也许是司机疲劳驾驶所致。根据“Maybe the driver drove the car with tiredness.”可知此事故发生在过去，应用一般过去时，cause“导致，引起”的过去式是caused，故填caused。

58．crops

【详解】句意：农民们很担心，因为大雨对他们的庄稼造成了很大的损害。crop“庄稼，作物”，名词，此处需用名词复数形式。故填crops。

59．recycling

【详解】句意：这些来自环保学校的学生正在收集废旧纸张和瓶子来循环使用。此处所填单词需作for的宾语，而recycle是动词作谓语，不能作宾语，应用动名词形式。故填recycling。

60．reusable

【详解】句意：最好使用可重复使用的瓷杯，因为它可以再次使用。根据“a ... china cup”可知，此处要填形容词；再根据“it can be used again”和所给词可知，应填reusable，表示“可重复使用的”。故填reusable。

61．knowing    62．developed    63．years    64．cloudy    65．first    66．failed    67．was invented    68．cheaper    69．change    70．getting

【分析】本文是一篇说明文。文章主要介绍了计时工具的发展历史，从原始计时到机械计时再到数码计时。

61．句意：知道时间很难。根据空后的“the time was not so easy”可知，应该填的是know“知道”的动名词knowing作主语，故填knowing。

62．句意：几个世纪以来，人们已经发展出不同的报时方式。根据空前的“have”可知，应该填的是动词develop“发展”的过去分词developed和have构成现在完成时，故填developed。

63．句意：大约3500年以前。根据空前的“3, 500”可知，应该填的是名词year“年”的复数years，故填years。

64．句意：在多云的日子或夜晚，用太阳钟或日晷是不可能知道时间的。根据空后的“days”可知，应该填的是cloud“云”的形容词cloudy“多云的”，故填cloudy。

65．句意：水钟是第一个不用太阳的钟。根据空前的“the”可知，应该填的是one的序数词first“第一”表顺序，故填first。

66．句意：但是它们却不能保持准确的时间。根据时态是一般过去时，所以用fail“未能”的过去式failed，故填failed。

67．句意：机械钟被发明了。根据主语“the mechanical clock”和动词“invent”是被动关系，所以用被动语态，由“In the 13th century”可知，时态是一般过去时，一般过去时的被动语态构成：主语+was/were+动词过去分词，主语“the mechanical clock”是单数，所以用was，invent“发明”的过去分词invented，故填was invented。

68．句意：建造和拥有时钟变得更便宜了。根据前文的“In 1927, the first quartz clock was developed”可知，建造和拥有时钟变得更便宜了，用cheap的比较级cheaper“更便宜”，故填cheaper。

69．句意：在守时方面有了很大的进步，但有些事情永远不会改变。根据前文的“And nowadays satellites(人造卫星) send our cell phones the time to the exact second”可知，时态是一般现在时，主语“some things”是复数，所以用动词原形change“改变”，故填change。

70．句意：我们中的大多数人仍然难以按时起床。根据固定搭配have trouble (in) doing sth“做某事有困难”可知，应该填的是get的动名词getting，故填getting。

71．例文

How to protect our environment?

The environmental pollution is more and more serious today. We have almost no clean water to drink because of water pollution. There is more and more dirty smoke in the air when trees are cut down. People’s health has been greatly affected by polluted air, noise and water pollution.

In order to live a better life, it’s time for us to protect our environment. We shouldn’t throw away rubbish everywhere. And we should recycle things, for this saves money and reduces pollution. Use things for as long as possible. Don’t use plastic bags. Also, we must try our best to plant more trees.

We hope our environment will be more and more beautiful.

【详解】1. 题干解读：这篇作文要求以“How to protect our environment”为题，介绍当前的环境问题，并提出保护环境的措施。文章中应包括两个主要内容：首先陈述目前存在的问题，这一点在题目中给出了一些提示，学生们可以参考；然后提出一些保护环境的措施，这一部分的内容需要学生们自己发挥想象力，结合实际生活中具体的做法，然后用正确的英语进行表达。

2. 写作指导：审题可知，这篇短文应以一般现在时态为主叙述。写作时应合理安排文章的内容，不要遗漏要点，并且要分清层次。注意英语句式结构的特点和表达习惯，以简单句结构为基础，穿插并列句、复合句的使用，语法要规范，用词应准确。同时注意上下文的衔接，使文意连贯、流畅。