人教版 (2019)必修 第三册Unit 4 Space Exploration课后复习题

这是一份人教版 (2019)必修 第三册Unit 4 Space Exploration课后复习题，共12页。试卷主要包含了5分,满分37等内容，欢迎下载使用。
第四单元过关检测
(时间:100分钟　满分:120分)
第一部分　阅读(共两节,满分50分)
第一节(共15小题;每小题2.5分,满分37.5分)
阅读下列短文,从每题所给的A、B、C、D四个选项中选出最佳选项。
A
Imagine flying from Tokyo to Paris,enjoying first-class travel,a four-course dinner and a city tour—all without leaving the ground.This is the future of air travel according to Japanese company First Airlines,which has used the power of virtual reality to create dream vacations.
Passengers avoid the costly airport transfer,the baggage fees or busy airport terminal(航站楼)—and instead enjoy the privileges of business or first-class travel and an expensive tour of Paris—all while remaining motionless in Tokyo.As well as Paris,First Airlines also offers the virtual destinations of New York,Rome and Hawaii.
After boarding,guests can settle down for the two-hour flight on their advanced Airbus seat-surrounded by decoration that is modeled on the inside of an aircraft,for maximum realism.There is flight service and VR,foods,music for every destination.Passengers will be served a delicious meal by air stewards,alongside drinks and other desserts.The menu depends on the destination of choice—Manhattan clam chowder(蛤蜊杂烩汤) and cheesecake for New York and salmon and onion soup for Paris.After landing at the destination,guests can enjoy a 360-degree tour of the destination—all thanks to projection(投影) mapping and video.
It makes for a supposedly stress-free vacation,perfect for those whose ability to travel abroad is limited by cost or health.Virtual reality is becoming increasingly present everywhere at all times in the world of travel—allowing travellers to appreciate the wonders of the world,all without leaving their houses.
At just 4,980 yen($46) for business class and 5,980 yen($56) for first class—these two-hour flights are far more affordable than their real-life flights.
1.What can we learn about the future of air travel from Tokyo to Paris?
A.It is high-flying. B.It is money-saving.
C.It is power-wasting. D.It is time-consuming.
答案:B
解析:细节理解题。根据第二段中的“Passengersavoidthecostlyairporttransfer,thebaggagefeesorbusyairportterminal—andinsteadenjoytheprivilegesofbusinessorfirst-classtravelandanexpensivetourofParis—allwhileremainingmotionlessinTokyo.”可知,从东京到巴黎的航空旅行在未来是省钱的。故选B项。
2.Who is the flight perfect for?
A.People who do little physical exercise.
B.People who work under great pressure.
C.People who desire to travel a long distance.
D.People who have health or money troubles.
答案:D
解析:细节理解题。根据第四段中的“Itmakesforasupposedlystress-freevacation,perfectforthosewhoseabilitytotravelabroadislimitedbycostorhealth.”可知,对于那些有健康或金钱问题的人来说,这个体验是完美的。故选D项。
3.What can be the best title for the text?
A.A scientific fantasy
B.The power of virtual reality
C.Japan’s virtual air travel abroad
D.Appreciation of the global wonders
答案:C
解析:标题归纳题。通读全文,尤其是第一段内容可知,本文主要讲述的是日本第一航空公司推出了虚拟航空旅行,描述了航空旅行的未来,它利用虚拟现实的力量创造了梦幻般的假期。故选C项。
B
There’s no doubt that one of the greatest human achievements is space exploration.Ever since Yuri Gagarin became the first person to be sent into the orbit around the moon in 1961,scientists have been pushing the boundaries further and further.But until now the exploration into the unknown has been dominated(主导) by men.
Of course,in the past,women were also included in the space projects and played an active role on the ground and behind the scenes.For example,they worked as seamstresses(女裁缝师),sewing vital spaceflight components.In fact,many of NASA’s key works would never have been possible without them.Hollywood produced a movie to focus on a group of American female mathematicians,especially the black women,who helped NASA send the first American into space.But this was not women’s only contribution.Back in 1963,Valentina Tereshkova became the first woman to be sent into space.However,after that,space flight programmes were slow to employ women.In the USA,NASA didn’t accept applications from women to become astronauts until 1978.
But attitudes have changed.The leading officials at NASA say that the first person to set foot on Mars should be a woman.The space agency aims to have a sex-balanced workforce but can only achieve that if equal numbers of men and women are trained for science and technology jobs.As Allison McIntryre said,“My director is a woman.We have female astronauts.We haven’t put a woman on the moon yet.And I think that perhaps the first person to step on Mars should be a woman.”
4.What did Yuri Gagarin do in 1961?
A.He landed on the moon in success.
B.He discovered many new boundaries.
C.He led scientists to explore the moon.
D.He made the first journey into space.
答案:D
解析:细节理解题。根据第一段中的“EversinceYuriGagarinbecamethefirstpersontobesentintotheorbitaroundthemoonin1961,scientistshavebeenpushingtheboundariesfurtherandfurther.”可知,1961年,尤里·加加林成为第一个完成太空旅行的人。故选D项。
5.Why does the author mention a movie?
A.To show women are the true heroes of NASA’s first launch.
B.To stress that black people have won equal rights in NASA.
C.To prove women can do as well as men in NASA’s projects.
D.To present women’s contributions to NASA’s space programmes.
答案:D
解析:推理判断题。根据第二段中的“Infact,manyofNASA’skeyworkswouldneverhavebeenpossiblewithoutthem.HollywoodproducedamovietofocusonagroupofAmericanfemalemathematicians,especiallytheblackwomen,whohelpedNASAsendthefirstAmericanintospace.”可知,作者提到电影是为了举例说明在太空探索这一领域,女性曾做出过重大贡献。故选D项。
6.What is Allison McIntryre’s attitude toward women astronauts?
A.Uncaring. B.Disapproving.
C.Supportive. D.Disappointed.
答案:C
解析:推理判断题。根据最后一段中的“Mydirectorisawoman.Wehavefemaleastronauts.Wehaven’tputawomanonthemoonyet.AndIthinkthatperhapsthefirstpersontosteponMarsshouldbeawoman.”可知,AllisonMclntyre不但认可自己的女性上司,也支持女性成为第一个登上火星的人。故选C项。
7.What is the best title for the text?
A.Will the first person to step on Mars be a woman?
B.Great achievements have been made in space exploration
C.Why men played an important role in exploring the unknown?
D.Men and women have made equal contributions to NASA’s projects
答案:A
解析:标题归纳题。根据全文以及最后一段中的“Butattitudeshavechanged.TheleadingofficialsatNASAsaythatthefirstpersontosetfootonMarsshouldbeawoman.Thespaceagencyaimstohaveasex-balancedworkforcebutcanonlyachievethatifequalnumbersofmenandwomenaretrainedforscienceandtechnologyjobs.”可知,尽管NASA官员已经表态希望女性成为登陆火星的第一人,但是由于女性在接受相关科技教育等方面存在的问题,NASA宣示的目标能否实现还是一个未知数。由此可知,A项适合做本文最佳标题。故选A项。
C
If you are ever planning to buy a telescope and want to get yourself involved in astronomy,it is always a good idea to know a bit of the sky.Get acquainted with a few constellations(星座) so that it will be easier for you to spot the constellations when you are using your telescope.
It’s a good idea to buy a few magazines on astronomy to help you to get familiar with the constellations in the sky and also read a few reviews on the different types of telescopes in the market.This will help you gather all the information about telescopes and what people have to say about them.
It’s advisable to go in for a pair of binoculars(双筒望远镜) before you buy your first telescope so that you can get used to spotting constellations before your view of the sky is narrowed down.This will also help you know if you really want to get involved in astronomy.Many people buy a costly telescope and then discover that they’re not actually interested in astronomy.
Experience has no substitute,and there certainly is nothing better than using different telescopes before you buy one.This will help you to get the feel of all the types of telescopes and you will know which one is easier for you to use.A large aperture(光圈) refractor(折射) may give you an excellent image but you may not be able to keep a steady hand while using it resulting in an unclear image.
There are three types of telescopes that are available in the market.If you want a more elegant looking telescope you can always choose to buy a fine brass telescope.It’s good to become acquainted with each type before going for the plunge of a first telescope.The first type of telescope is the refractor telescope,which uses lenses(镜片) to gather light to a focus at the eye piece.The use of lenses helps the telescope have a superior image.A refracting telescope is not as portable as the other two types of telescopes and so you will have to buy one with a small aperture.
The second type of telescope is the Reflector.This telescope functions by focusing the light back at the front of the tube,which is where the eyepiece sits,by using parabolic(抛物线的) mirrors and another smaller mirror to deflect the light.There is no added colour in the image caused by refraction of light since this telescope does not use lenses.These are the cheapest of all telescopes and are more portable than refractors.
8.According to the text,a telescope is intended to be bought for 　　　. 
A.getting experience
B.watching stars
C.studying the climate
D.learning about a bit of the sky
答案:B
解析:推理判断题。在第一段中作者建议买望远镜之前多了解一些天文知识,特别是星座方面的知识,这就说明望远镜的用途是用来观察星星。
9.What can we learn from paragraph 2?
A.One must know something about astronomy and telescopes.
B.One can’t buy a telescope without buying several astronomy magazines.
C.One should check the telescopes in the market and try to find a better one.
D.One must be familiar with new information of astronomy and space instruments.
答案:A
解析:段落大意题。作者建议在购买望远镜前多了解一些天文知识,并且了解人们对市场上各种望远镜的评价,从而对产品有所了解。
10.Why does the author advise buying a pair of binoculars first?
A.The telescope is too expensive.
B.The binoculars are easier to use.
C.You may gain plenty of experience in astronomy.
D.Your view will be narrow by using a pair of binoculars.
答案:C
解析:细节理解题。在第三段中作者建议先使用双筒望远镜以获取经验并且确定对观测天文现象是否真的感兴趣。
11.What do we know about the refracting telescope?
A.It looks very elegant.
B.It refracts light by an eye piece.
C.It has clear images without any lenses.
D.It is not convenient to take along for its size.
答案:D
解析:细节理解题。根据倒数第二段中的“Arefractingtelescopeisnotasportableastheothertwotypes...”可知,折射望远镜不如其他两种方便携带。
D
A home science experiment took the world by storm.Two teens from Toronto,in Canada,sent a Lego man rising above Earth and captured their tiny astronaut’s trip on film. 
Mathew Ho and Asad Muhammad used a weather balloon to launch their plastic lego model 16 miles above Earth.This is inside a part of Earth’s atmosphere.
The two teens were inspired by a similar project performed by students at the Massachusetts Institute of Technology(MIT).The MIT students had launched a weather balloon with a camera into near space and taken many unusual images of Earth.Mathew and Asad then spent four months figuring out how to launch their own spacecraft into space.
Travelling to space is expensive for NASA,but Mathew and Asad worked hard to keep their costs down.They bought much of their equipment used and even sewed the Lego man’s parachute(降落伞) by hand.In total,the project cost only $400.
“We had a lot of anxiety on launch day because there were high winds when we were going up,” Mathew told reporters.They had to pump extra helium(氦) into the balloon so that it would rise quickly and avoid being blown too far off course by the strong winds.
The toy astronaut’s journey lasted 97 minutes before the balloon broke and he fell back to Earth.Mathew and Asad then spent two weekends looking for their spacecraft.It had landed 76 miles away from the launch site.
“I guess the sky is not really the limit anymore,” Mathew told reporters.“We never knew we’d get this far.It’s been a lesson for us that hard work pays off.”
12.By saying “took the world by storm” in the first paragraph,the writer meant the experiment 　　　. 
A.destroyed the world
B.flooded the world
C.fascinated the world
D.managed the world
答案:C
解析:词义猜测题。根据第一段的第二句话可知,两个青少年把一个玩具乐高人送入了太空,并把过程拍了下来,因此作者想要表达的是这个试验吸引了世人的目光。故选C项。
13.Which of the following about the students at the Massachusetts Institute of Technology(MIT) is right?
A.They were examples for Mathew Ho and Asad Muhammad.
B.They helped Mathew Ho and Asad Muhammad to achieve dream.
C.They launched weather balloon together with Mathew Ho and Asad Muhammad.
D.They studied with Mathew Ho and Asad Muhammad in the same school.
答案:A
解析:细节理解题。根据第三段中的“ThetwoteenswereinspiredbyasimilarprojectperformedbystudentsattheMassachusettsInstituteofTechnology(MIT).”可知,MIT给这两个青少年提供了一个例子。故选A项。
14.How did Mathew and Asad keep their costs down?
A.By sewing the weather balloon themselves.
B.By borrowing spacecraft from the MIT students.
C.By making their spacecraft by hand.
D.By using second-hand equipment.
答案:D
解析:细节理解题。根据第四段的第二句话可知,他们使用二手的设备来节省费用。故选D项。
15.What problems did Mathew Ho and Asad Muhammad have on launch day?
A.They ran out of helium.
B.The wind was too strong.
C.The balloon suddenly broke.
D.Their spacecraft was blown away.
答案:B
解析:细节理解题。根据第五段中的“Wehadalotofanxietyonlaunchdaybecausetherewerehighwindswhenweweregoingup”可知,在他们进行发射的那天遇到的问题是风比较大。故选B项。
第二节(共5小题;每小题2.5分,满分12.5分)
阅读下面短文,从短文后的选项中选出可以填入空白处的最佳选项。选项中有两项为多余选项。
Howtostayfocusedinclass
·　16　 No matter how much you want to sit with your friends during the class,try your best to avoid them.Talking with friends is not going to help you stay focused(集中注意力的) in class and will cause trouble,too. 
·Lookattheteacher.Your teacher is not just standing up there talking—they’re trying to give you an acceptable education.Show the teacher that he or she has your full attention,by looking him or her in the eye.　17　 
·Takenotes.By taking notes,you’ll be able to “get into” the lesson.　18　 Listen for key phrases such as,“This is important,” “This is the main idea,”etc.This can help you listen more intently(专心地);you’ll have something to do and focus on. 
·Getinvolvedinclassdiscussions.This is a wonderful way to become a more focused,successful student.When a teacher asks a question,offer to answer it.　19　 This shows the teacher that you’re listening intently during the class. 
·Askaquestion.　20　 This really shows your teacher that you want to be better,and can recognise the things you’re having difficulty with.Chances are,someone else in the class has the same question (and is too afraid to ask!).They’ll be relaxed—and so will you. 
A.Do your best.
B.Avoid sitting with friends.
C.Don’t try to finish your old notes in class.
D.Write down key points as your teacher speaks.
E.If he or she asks for an opinion,share your own.
F.If you don’t understand something,never be afraid to ask.
G.This person should have your full attention at all time in class.
答案:16~20 BGDEF
第二部分　语言运用(共两节,满分30分)
第一节(共15小题;每小题1分,满分15分)
阅读下面短文,从每题所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项。
Instead of cruising in a hoverboard,I rode my bike to the office today.The bicycle was invented in the 19th century.Instead of taking a pill for breakfast,I had a bacon roll,cooked using gas.Science fiction has 　21　 to us. 
Making predictions is tricky,especially about the future,as physicist Niels Bohr joked.In science fiction,you can’t escape that 　22　 though.Since its birth in the 19th century,writers have 　23　 imagined the things to come:devices that humankind will invent to make life easier.But in so many instances,those promises have not come to pass.The biggest 　24　 are in travel—jet packs,hoverboards and flying cars are yet to fill the skies.Air travel has become significantly cheaper and wide-reaching,but only using distinctly 20th-century technology:commercial aeroplanes are much the same as they were 50 years ago. 
　25　 is what science fiction frequently delivers,but its arrival in the real world has been unpredictable.Domestic robots with a degree of intelligence are yet to 　26　,though robotic vacuum cleaners are commercially available—even if they are fairly hopeless.Video calls have now arrived—sort of—but conferencing on Skype is still dissatisfying.In mobiles,video call technology is now available,so when your dad rings to update you on his vegetable patch,he’ll be able to 　27　 your look of boredom. 
The truth is that we quickly　28　 the astonishment of invention:our wonderment is soon replaced with the feeling of nothing new.We should try to stay in that period of 　29　.It is astonishing that the contents of every book ever written can be stored in a small box.Or that you can carry 10,000 albums on an object kept in your pocket.Or that almost all the information in the world can be accessed almost anywhere at any time.All these 　30　 are dependent on the emergence of the microchip and its place in computers.Yet science fiction didn’t 　31　 the dominance of the computer in running our lives. 
But the real area where 　32　 far outstrips(超越) predictions is medicine.Sure,fiction would describe humans as “disease-free” but without going into detail.“Disease-free” humans are still absent,but the progress made in 　33　 life is breathtaking.With relative ease,we can sequence anyone’s genome(基因组),giving a read—out of our entire genetic code.This means we can find out the underlying genetic cause of thousands of diseases in minutes. 
Photosensitive implants now exist that can replace damaged cells in the retina(视网膜) and can,thus 　34　 sight to the blind.While the inventions of science fiction can show great ideas we’d like to happen,nothing 　35　 the inventiveness of people in the real world. 
21.A.turned B.lied
C.objected D.talked
答案:B
解析:句意:今天我没有骑着悬浮滑板兜风,而是骑着自行车去上班。自行车是在19世纪发明的。我早餐没有吃药片,而是吃了一个熏肉卷,是用煤气做的。科幻小说欺骗了我们。根据下文可知,作者认为今天的生活没有改变,与科幻小说中的内容相去甚远,故此处指科幻小说骗了我们。故选B项。
22.A.opportunity B.challenge
C.imagination D.conflict
答案:B
解析:句意:正如物理学家尼尔斯·波尔开玩笑说的那样,做出预测是很困难的,尤其是关于未来的预测。但在科幻小说中,你无法逃避这种挑战。根据空前内容可知,预测是很难的,作者指预测在科幻小说中是一种挑战。故选B项。
23.A.hesitantly B.critically
C.temporarily D.tirelessly
答案:D
解析:句意:自19世纪诞生以来,作家们就孜孜不倦地想象着未来的事情:人类将发明出让生活更轻松的设备。根据文意可知,自科幻小说诞生以来,作家们一直致力于想象着未来的事情。故选D项。
24.A.disappointments B.advancements
C.enjoyments D.experiments
答案:A
解析:句意:最令人失望的是旅行背包、悬浮滑板和飞行汽车还没有出现在空中。根据第一段中的“Sciencefictionhas　　　tous.”以及空处文意可知,旅行背包、悬浮滑板和飞行汽车仍然没有出现,非常令人失望。故选A项。 
25.A.Modernisation B.Exploration
C.Automation D.Transportation
答案:C
解析:句意:自动化是科幻小说中经常出现的东西,但它在现实世界中的出现是不可预测的。根据下文的“Domesticrobotswithadegreeofintelligence”可推知,此处指automation“自动化”,故选C项。
26.A.materialise B.identify
C.honour D.liberate
答案:A
解析:句意:具有一定智能的家用机器人还没有实物化,尽管机器人真空吸尘器在商业上是可行的——即使它们相当没有希望。根据前文可知,自动化常见于小说中,说明这种智能机器人现实中还不存在,还没实体化,materialise在此处指“实体化”。故选A项。
27.A.imagine B.feel
C.see D.ignore
答案:C
解析:句意:在移动电话领域,视频通话技术已经成熟,所以当你的父亲打电话告诉你他的菜地的最新情况时,他就能看到你的表情了。根据前文可知,视频通话技术已经成熟,所以通话时可以看到对方,故选C项。
28.A.arouse B.discover
C.forget D.evaluate
答案:C
解析:句意:事实上,我们很快就会忘记发明的惊奇:我们的惊奇很快就会被没有新东西的感觉所取代。根据空后的replace可知,此处指我们会很快忘记发明的神奇,故选C项。
29.A.frustration B.amazement
C.boredom D.limitation
答案:B
解析:句意:我们应该试着停留在那个惊奇的时期。令人惊讶的是,每本书的内容都可以储存在一个小盒子里。根据上文的“theastonishmentofinvention”和下文的“Itisastonishingthat...”可知,作者指我们应该停留在令人惊讶的发明时代。故选B项。
30.A.modes B.worries
C.potentials D.actions
答案:D
解析:句意:所有这些行动都取决于微芯片的出现及其在计算机中的地位。根据前文的“Itisastonishingthatthecontentsofeverybook...Orthatyoucan...Orthatalmostalltheinformation...”可知,这些行动是取决于微芯片的存在,故D项符合题意。故选D项。
31.A.predict B.overlook
C.motivate D.prevent
答案:A
解析:句意:然而,科幻小说并没有预测到电脑在我们生活中的主导地位。根据上文内容可知,科幻小说的作者们孜孜不倦地预测未来的事情,但是没有预测到电脑在我们生活中的地位。故选A项。
32.A.quality B.obstacle
C.passion D.reality
答案:D
解析:句意:但现实远远超出预测的真正领域是医学。根据下文内容可知,小说中把人类描述成“无病”,但是没有过多的延展,说明医学领域的创造的现实超出预测,这里是reality对应predictions。故选D项。
33.A.maintaining B.creating
C.researching D.encountering
答案:A
解析:句意:“没有疾病”的人类仍然缺席,但在维持生命方面取得的进展是惊人的。根据下文可知,完整读出记忆代码意味着可以几分钟内找出数千种疾病的潜在遗传原因,可知,虽然没有不会患病的人类出现,但在维持生命方面取得了很大的进步,故A项符合题意。故选A项。
34.A.show B.lend
C.restore D.label
答案:C
解析:句意:光敏植入物现在已经存在,它可以取代视网膜上受损的细胞,从而恢复盲人的视力。根据空前内容可知,光敏植入物的出现可以使得盲人恢复视力,C项符合题意。故选C项。
35.A.guarantees B.overestimates
C.releases D.outperforms
答案:D
解析:句意:虽然科幻小说的发明可以展示“我们希望发生”的伟大想法,但没有什么比现实世界中人们的创造力更强大。根据空处内容和前文内容可知,作者认为医学领域的超前预见性,证明了人们的创造力优于科幻小说中的预测,故D项符合文意。故选D项。
第二节(共10小题;每小题1.5分,满分15分)
阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。
The polar bear is found in the Arctic Circle and some big land masses as far south as Newfoundland.While they are rare north of 88°,there is evidence 36.　　　　　　 they range all the way across the Arctic,and as far south as James Bay in Canada.It is difficult to figure out a global population of polar bears as much of the range has been 37.(poor) studied;however,biologists calculate that there are about 20,000-25,000 polar bears worldwide. 
Modern methods 38.　　　　　　 tracking polar bear populations have been employed only since the mid-1980s,and are expensive 39.　　　　　　(perform) consistently over a large area.In recent years some Inuit people in Nunavut 40.　　　　　(report) increases in bear sightings around human settlements,leading to a 41.　　　　　　(believe) that populations are increasing.Scientists have responded by 42.　　　　　　(note) that hungry bears may be congregating(聚集) around human settlements,leading to the illusion(错觉) that populations are 43.(high) than they actually are.Of 44.　　　　　 nineteen recognized polar bear subpopulations,three are declining,six 45.　　　　　(be) stable,one is increasing,and nine lack enough data. 
答案:36.that　37.poorly　38.of/for　39.to perform 40.have reported　41.belief　42.noting　43.higher 44.the　45.are
第三部分　写作(共两节,满分40分)
第一节(满分15分)
假定最近你们班进行了一次题为“保护文化遗产是否很重要”的讨论。根据以下要点用英语向大家介绍一下讨论结果,并谈谈你自己的看法。
1.80%的学生认为重要及其理由;
2.20%的学生认为不重要及其理由。
注意:1.词数80左右;
2.可适当增加细节,以使行文连贯。
 
 
 
 
参考范文
Recently our class had a heated discussion about whether it is important to protect the cultural heritage.We hold different views on it.
80% of us think it important to protect the cultural heritage.The cultural heritage is a symbol of splendid ancient civilisation which can make us feel proud of our nation.However,the others don’t think so,arguing that protecting the cultural heritage cannot promote the development of society.They think that it is a waste of time and money.
In my opinion,it’s our duty to take more effective measures to protect our cultural heritage and we can benefit a lot from the cultural and historical inspirations it conveys.
第二节(满分25分)
阅读下面短文,根据其内容写一篇60词左右的内容概要。
As people lose weight,their moods improve.Or in turn—as their moods improve,they lose weight.As their moods improve and they lose weight,they cut their risk in half for a whole host of illnesses,from heart disease to diabetes(糖尿病),in part because they are more positive in taking good care of themselves.Moreover,the link goes further than that:increase their happiness and lower their stress,such as hydrocortisone(皮质醇),and the inflammatory(炎症性的) processes associated with disease.Lower stress means people sleep better,think more clearly and have more energy,which are all factors that help them lose weight and stay happy.
Additionally,people with sunny outlooks are more likely to choose healthy foods,which in turn fuel their good moods.They are less likely to get sick;they recover more quickly if they do get sick;they live longer—more than 7 and possibly up to 10 years longer—and they are healthier in those extra years than people who are either depressed or overweight.It works in turn,too.People who choose foods known to improve mood find it easier to lose weight,cope with stress and sleep better.
The opposite is also true.When people are overweight,they are most likely to feel dull,tired and depressed.They turn to food—typically the wrong ones,which add more weight and stress,disturb their sleep and drop their mood even further.Poor sleep habits,in turn,increase the risk for being overweight.Some studies found that the risk has increased by up to 70%.It’s no surprise that people who are sad or downright depressed are twice as likely to be overweight;people who are overweight are twice as likely to become depressed and anxious.They are more likely to suffer other mental health problems.For example,a potbelly(大肚腩) at age 50 are more than triples the risk for dementia,which hits the senior years!Those people are also at highest risk for atherosclerosis(动脉粥样硬化),diabetes,high blood pressure,memory loss,osteoporosis(骨质疏松) and dementia.
 
 
 
 
参考范文
When we lose weight,our spirits will become high,which in turn inspire us to become more slim.Because of the high spirits and good figure,we seldom get ill.On the contrary,if we are overweight,we will become unhappy and turn to junk foods,which contribute to our overweight.It further results in illness.