人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists精练

这是一份人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists精练，共15页。试卷主要包含了5分,满分37等内容，欢迎下载使用。

第一单元过关检测
(时间:90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
There are many colours in nature.But do you think that a colour has weight?I think you’ll say “no”.But I’m afraid you are wrong.If you don’t believe it,you may do a small experiment.
First,put two objects with the same weight into two boxes.Then cover the boxes.Third,wrap(包;裹) one box with a red piece of paper,the other one with a white piece of paper.OK.Now hold the boxes with your hand one by one.It is certain that you will think the red one is a little heavier.
Why do you think so?A scientist found that different colours have different weights in man’s mind.That is to say,every colour has its own weight in our mind.
The scientist told us that colours also have smell.Can you smell the colour?Of course not.Then why did the scientist say so?That is because every colour stands for a kind of light with a certain wavelength(波长).It reaches our brain through sense organs(器官).
According to this discovery,scientists say that people accept the colours they like,and refuse the colours they hate.So your body and mind will be healthy by using the colours you like.Or you’ll be nervous or even get ill.For example,you like blue and hate red.If you stay in a room with red windows,wallpaper and furniture for two hours,you’ll feel you have been there for four hours.But if the room is blue,you’ll feel you have been there for only an hour.And,if a person walks out of a blue room and into a red room,his temperature will rise.That means our body temperature will change with different colours.
1.From the experiment,we know that 　　　. 
A.the two boxes have the same weight
B.colours can change the weight of an object
C.the red paper is heavier than the white paper
D.colours have different weights in people’s mind
答案:D
解析:推理判断题。根据短文第三段可知,科学家发现不同的颜色在我们的思想里有不同的重量。故应选D项。
2.From the fourth paragraph,we can infer 　　　. 
A.the smell of colours is changeable(可变的)
B.people can sense the light from colours
C.people can smell the colours through the nose
D.all the colours have the same smell for the blind
答案:B
解析:推理判断题。根据短文第四段中的“Thatisbecauseeverycolourstandsforakindoflightwithacertainwavelength.Itreachesourbrainthroughsenseorgans.”可知,每种颜色都代表一种波长的光,它能通过感觉器官传播到我们的大脑,因此人们能感觉到颜色。由此可知选B项。
3.Which of the following is true?
A.White colour is heavier than red colour.
B.People can stay longer in red rooms than in blue rooms.
C.People may get ill if they refuse the colours they don’t like.
D.People’s body temperature will change with different colours.
答案:D
解析:细节理解题。根据短文最后一段中的“Forexample,youlikeblueandhatered...And,ifapersonwalksoutofablueroomandintoaredroom,histemperaturewillrise.”可知,颜色会影响人们的体温。例如你喜欢蓝色,讨厌红色,如果你从一个蓝色的房间走进一个红色的房间,你的体温就会升高。由此可知D项是正确的。
B
3-D printers are very hot today.They are being put to all kinds of uses,ranging from creating car models for movies to architectural models.However,none of these ideas are as shocking as the one suggested by Anjan Contractor,who believes that they will be the key to ending world hunger.
According to some experts,world population will increase to 10-12 billion by the end of this century.This means that food will become very expensive and possibly,even out of reach,for billions of people.
This is where 3-D printing may save the day.Anjan thinks that the only way to solve the problem will be to equip every kitchen with a 3-D printer and print out meals from tubes of powder and oil.He believes that these meals with a shelf life of over 30 years would result in less food wastage.
Most important of all,it would be easier to make food from things that we now do not consider edible(可食用的).A great example of that is the protein from meat.Most experts believe that as the population grows,the supply is not going to be enough to feed everyone.Anjan believes that we could easily get the same protein from insects.Though all this futuristic food may sound unappealing,the scientists believe that when faced with a terrible food crisis,it will be very welcomed.
While this may sound a little difficult to believe,Anjan seems to have convinced the scientists at NASA,who are looking for a solution to feeding astronauts when they go on really long missions,like the one being planned to Mars.They gave Anjan $125,000 to start building the first real 3-D printer that creates the food.
Anjan is not the only one with this idea.A group led by Professor Hod Lipson has been experimenting with this idea since 2011 and has even succeeded in printing out cube-shaped creations from powdered milk and cookies with limited sugar!
For more information click here.
4.The passage mainly talks about 　　　. 
A.whether 3-D printers will have a bright future
B.3-D printers will be used in every field in future
C.3-D printers will solve the problem of increasing population
D.whether 3-D printers will be the key to ending world hunger
答案:D
解析:主旨大意题。本文主要介绍3D食物打印机将来很可能解决世界粮食短缺的问题。
5.Itcanbeinferredthat　　　. 
A.peoplegetunappealingfuturisticcube-shapedcreations
B.3-Dprinterscanonlycreatepowderedmilkandcookies
C.futuristicfoodthatcontainsproteincanbemadeby3-Dprintersfrominsects
D.insectswillbethemostpopularfoodinthefuture,thoughunappealingnow
答案:C
解析:推理判断题。根据第四段中的“Anjanbelievesthatwecouldeasilygetthesameproteinfrominsects.”可知,未来人们所摄取的蛋白质可以由3D打印机从昆虫身上获取。
6.Whichgroupofpeoplearemostlyinneedof3-Dprinters?
A.ThepeopleinAfrica.
B.Thescientistsandresearchers.
C.Theastronautsworkinginspace.
D.Thefarmersandoff-landworkers.
答案:C
解析:细节理解题。根据第五段的陈述可知,目前宇航员急需这种高科技产品来解决他们在太空中长时间工作时的吃饭问题。
7.Where would you be most likely to find the text?
A.On a notice board.
B.In a college newspaper.
C.In an institution brochure.
D.On a high technology website.
答案:D
解析:细节理解题。通读全文特别是根据短文最后一句“Formoreinformationclickhere.”可知答案。
C
What makes babies laugh?It sounds like one of the most fun questions a researcher could investigate,but there’s a serious scientific reason why Caspar Addyman wants to find out.
He’s not the first to ask this question.The great psychologist(心理学家) of human development,Jean Piaget,thought that babies’ laughter could be used to see into their minds.Studying when babies laugh might therefore be a great way of gaining insight into how they understand the world,he reasoned.Although he suggested this in the 1940s,this idea remains to be properly tested.Despite the fact that some very famous investigators have studied the topic,it hasn’t been given enough attention by modern psychology.
Addyman,of Birkbeck,University of London,is out to change that.He believes we can use laughter to get at exactly how babies understand the world.He’s completed the world’s largest and most comprehensive survey of what makes babies laugh,presenting his initial results at the International Conference on Infant Studies,Berlin,last year.Via his website he surveyed more than 1,000 parents from around the world,asking them questions about when,where and why their babies laugh.
The results are heart-warming.A baby’s first smile comes at about six weeks,their first laugh at about three and a half months.Peekaboo(躲猫猫) is a sure-fire favourite for making babies laugh,but tickling(挠痒痒) is the single most reported reason why babies laugh.
Importantly,from the very first chuckle(低声轻笑),the survey responses show that babies are laughing with other people,and at what they do.The mere physical sensation of something being ticklish isn’t enough.Nor is it enough to see something disappear or appear suddenly.It’s only funny when an adult makes these things happen for the baby.This shows that way before babies walk,or talk,they—and their laughter—are social.If you tickle a baby they apparently laugh because you are tickling them,not just because they are being tickled.
What’s more,babies don’t tend to laugh at people’s falling over.They are far more likely to laugh when they fall over,rather than someone else,or when other people are happy,rather than when they are sad or unpleasantly surprised.Although parents report that boy babies laugh slightly more than girl babies,both genders(性别) find mummy and daddy equally funny.
In spite of the scientific potential,baby laughter is “strangely ignored”,according to Addyman.Part of the reason is the difficulty of making babies laugh reliably in the lab,although he plans to deal with this in the next stage of the project.But partly the topic has been ignored,he says,because it isn’t viewed as a subject for “proper” science to look into.This is a prejudice Addyman hopes to overturn—for him,the study of laughter is certainly no joke.
8.The psychologist Jean Piaget held the belief that 　　　. 
A.even a good joke could not be got across to babies
B.his theory about laughter would be proved in the end
C.studying babies’ laughter helped to know how they understand the world
D.babies’ laughter could be used to find out whether their brains functioned well
答案:C
解析:细节理解题。根据第二段第二、三句可知选C项。
9.The underlined word “that” in paragraph 3 refers to 　　　. 
A.the present situation of Birkbeck
B.the study conducted by Jean Piaget
C.thinking little of modern psychology
D.ignoring the research into babies’ laughter
答案:D
解析:词义猜测题。根据第三段首句 “Addyman,ofBirkbeck,UniversityofLondon,isouttochangethat.” 可知指示代词that所指应是前文内容, 即第二段末尾句。由此可以推理出,“that” 指婴儿的笑, 这一现象并没有得到现代心理学的足够重视。故选D项。
10.The result of the survey undertaken by Addyman shows that 　　　. 
A.babies are likely to laugh at people’s falling over
B.babies are very fond of being tickled
C.babies’ first laugh comes at six weeks
D.babies and their laughter are social in a way
答案:D
解析:细节理解题。根据第五段中的“Thisshowsthatwaybeforebabieswalk,ortalk,they—andtheirlaughter—aresocial.” 可知选D项。
11.From the last paragraph,it can be concluded that for Addyman,　　　. 
A.babies’ laughter is well worth studying
B.nobody should play jokes on babies
C.babies’ laughter is not a real science subject
D.scientists can get reliable information only in the lab
答案:A
解析:推理判断题。根据题干定位到文章最后一段最后一句 “ThisisaprejudiceAddymanhopestooverturn—forhim,thestudyoflaughteriscertainlynojoke.” 可知, 对于他来说, 研究婴儿的笑这一现象是值得的。故选A项。
D
When a leafy plant is under attack,it doesn’t sit quietly.Back in 1983,two scientists,Jack Schultz and Ian Baldwin,reported that young maple trees getting bitten by insects send out a particular smell that neighbouring plants can get.These chemicals come from the injured parts of the plant and seem to be an alarm.What the plants pump through the air is a mixture of chemicals known as volatile organic compounds,VOCs for short.
Scientists have found that all kinds of plants give out VOCs when being attacked.It’s a plant’s way of crying out.But is anyone listening?Apparently.Because we can watch the neighbours react.
Some plants pump out smelly chemicals to keep insects away.But others do double duty.They pump out perfumes designed to attract different insects who are natural enemies to the attackers.Once they arrive,the tables are turned.The attacker who was lunching now becomes lunch. 
In study after study,it appears that these chemical conversations help the neighbours.The damage is usually more serious on the first plant,but the neighbours,relatively speaking,stay safer because they heard the alarm and knew what to do.
Does this mean that plants talk to each other?Scientists don’t know.Maybe the first plant just made a cry of pain or was sending a message to its own branches,and so,in effect,was talking to itself.Perhaps the neighbours just happened to “overhear” the cry.So information was exchanged,but it wasn’t a true,intentional back and forth.
Charles Darwin,over 150 years ago,imagined a world far busier,noisier and more intimate(亲密的) than the world we can see and hear.Our senses are weak.There’s a whole lot going on.
12.What does a plant do when it is under attack?
A.It makes noises.
B.It gets help from other plants.
C.It stands quietly.
D.It sends out certain chemicals.
答案:D
解析:细节理解题。根据第一段第二句“...sendoutaparticularsmell...”可知是发出某种气味。
13.What does the author mean by “the tables are turned” in paragraph 3?
A.The attackers get attacked.
B.The insects gather under the table.
C.The plants get ready to fight back.
D.The perfumes attract natural enemies.
答案:A
解析:词义猜测题。根据第三段最后一句“Theattackerwhowaslunchingnowbecomeslunch.(进食者却成了别人的午餐).”可知进攻者变成了被进攻者。由此推断“thetablesareturned”意思是“局面反转”。
14.Scientists find from their studies that plants can 　　　. 
A.predict natural disasters
B.protect themselves against insects
C.talk to one another intentionally
D.help their neighbours when necessary
答案:B
解析:推理判断题。根据文章可知,当昆虫叮咬叶子时,叶子会发出特殊的气味,驱赶昆虫,同时提醒附近的植被提防。由此科学家得出结论,植被有自我抵御昆虫并警示其他植被预防昆虫的能力。尽管科学家猜测植被间可能有谈话,但并未得到科学实证,因此排除C项。D项的 whennecessary与选文中的overhear(偶然听见)意思不符。
15.What can we infer from the last paragraph?
A.The world is changing faster than ever.
B.People have stronger senses than before.
C.The world is more complex than it seems.
D.People in Darwin’s time were more imaginative.
答案:C
解析:推理判断题。150年前的达尔文猜测(imagine)自然界比我们表面上认识的世界要喧闹得多,由该段倒数第二句“Oursensesareweak.”得出结论:人们对自然界的感知是肤浅的。另外该文通过描述叶子自我保护的过程让我们更深入地了解了自然界的复杂性,世界其实比我们知道的要复杂得多。
第二节(共5小题;每小题2.5分,满分12.5分)
根据下面短文,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。
Today,people use the Internet to shop,play games,make friends and read the news.Many young people can’t imagine life without it.　16　 In fact,the Internet has been used for a much longer time than most people think. 
In 1957,the United States was in the middle of the Cold War.The Soviet Union had sent up the first satellite,named Sputnik,into space.This meant the Soviets were ahead of the US in technology.Americans were afraid.　17　 One of the ideas was a network that would let people across the country communicate by using computers. 
　18　 It was first tried out in 1969.For another twenty years,it was used only by scientists who worked with the US government and by some engineers.Then,in 1990,the army of America gave the control of the Internet to the National Science Foundation.　19　 
The biggest change in the way that people use the Internet came in 1992.For the first time,the Internet was opened to the general public,creating what is now known as the World Wide Web.　20　 Today,no one government controls the Internet and it just gets bigger and bigger.It makes our world different. 
A.The network took more than ten years to develop.
B.Soon,people began finding all kinds of different things they could do on the Internet.
C.Most older people,on the other hand,think the Internet is only 10 or 15 years old.
D.People began to be fond of the Internet.
E.They didn’t know what to do.
F.The Internet then became available to colleges all over the United States and to scientists across Europe.
G.Scientists in the army of America started developing ideas for protecting the country.
答案:16~20 CGAFB
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。
Though people have discussed the relationship between science and nature for many years,there is no consensual(统一的) explanation.While some view science as a powerful tool in 　21　 nature’s source of power,others view it as a danger.One example is Barry Commoner’s article,Unraveling(解开) the DNA Myth,which explains the recent developments in DNA technology and expresses 　22　.Another example is Nathaniel Hawthorne’s short story,The Birthmark.It is a tale about a famous scientist,Aylmer,who seems to be unraveling nature’s deepest secrets one by one.Despite all of his 　23　 and vast understanding of science,Aylmer is unable to direct that knowledge into 　24　 free from nature’s grasp.He was unable to rid his wife of her birthmark and,in the end,killed her. 
Despite the different presentations of the concepts,though time separated the two men,both pieces express a similar view on the relationship between science and nature.Both pieces suggest that nature is　25　 and holds wonders,secrets,and powers that many scientists constantly dream about discovering.Although there is a gap of one hundred and sixty years,Commoner still shares and gives evidence to Hawthorne’s beliefs that there is a unique 　26　 in nature that cannot be discovered or understood through science and that the 　27　 to uncover nature’s secrets are 　28　 and can lead to disaster.According to Commoner,nature’s universal power continues to prevent and control their discoveries.Commoner criticises and 　29　 doubt on the true power of science. 
As Commoner’s article suggests,nature only allows science to have limited power and success.Both men believe that complete trust in science is　30　,however wonderful and groundbreaking some scientific discoveries are.Commoner believes that people only seem to focus on the few achievements,while avoiding and ignoring all of the laws.For example,“most clones exhibit developmental failure before or soon after birth”.By stressing all of the 　31　 and shortcomings of science,he conveys the notion that nature’s secrets are well kept and far from being understood and 　32　 by man.The government and private companies have invested billions of dollars in mapping the human genome,but we still have no 　33　 for it.Such a discovery is useless,however interesting it might be. 
Commoner’s article clearly represents science as weak and useless,but more importantly,dangerous.It gives evidence to support the suggested dangers　34　 with science’s attempts to discover nature’s power.If the result is not 　35　 dangerous,it can still have harmful side effects. 
21.A.building B.defining
C.showing D.uncovering
答案:D
解析:上文说虽然人们多年来一直在讨论科学与自然的关系,但并没有达成共识,因此有人认为科学是揭示自然力量来源的有力工具,也有人认为科学是一种危险,故D项正确。
22.A.concerns B.views
C.findings D.achievements
答案:A
解析:一个例子是康芒纳的文章《解开DNA之谜》,它解释了DNA技术的最新发展并表达了担忧。上文说有人认为科学是一种危险,因此DNA技术引起了担忧,故A项正确。
23.A.interests B.ambitions
C.discoveries D.thoughts
答案:C
解析:尽管艾尔默有了诸多发现,对科学也有了广博的理解,但他却无法将这些知识从大自然的掌握中挣脱出来。空前说著名科学家艾尔默似乎在一个接一个地解开大自然最深处的秘密,他自然是有很多发现,故C项正确。
24.A.preventing B.earning
C.destroying D.breaking
答案:D
解析:根据表示让步的Despite可知,艾尔默无法将这些知识从大自然的掌握中挣脱出来,breakfreefrom表示“挣脱”,故D项正确。
25.A.mysterious B.powerful
C.fantastic D.special
答案:A
解析:这两个例子都表明,大自然是神秘的,蕴藏着许多科学家梦寐以求的奇迹、秘密和力量。根据空后的“andholdswonders,secrets,andpowersthatmanyscientistsconstantlydreamaboutdiscovering.”可知,大自然是神秘的,故A项正确。
26.A.prosperity B.perfection
C.improvement D.integrity
答案:B
解析:虽然相隔一百六十年,但康芒纳仍然认同并证明了霍桑的观点,即自然界有一种独特的完美,无法通过科学发现或理解,而揭开自然界秘密的努力毫无用处,可能导致灾难。空后说自然界无法通过科学发现或理解,下文又说自然的秘密被很好地保存着,并且远离人类的理解和控制,因此此处是说自然界是完美的,故B项正确。
27.A.beliefs B.experiences
C.actions D.attempts
答案:D
解析:上文说一直以来科学家都努力解开大自然的秘密,故D项正确。
28.A.disappointing B.meaningful
C.useless D.significant
答案:C
解析:上文说自然界是无法通过科学发现或理解的,因此想要揭开自然界秘密的努力是没有用的,故C项正确。
29.A.throws B.expresses
C.holds D.casts
答案:D
解析:康芒纳批判和怀疑科学的真正力量。上文说康芒纳认为自然界有一种独特的完美,是无法通过科学发现或理解的,因此他对科学的真正力量表示怀疑,castdoubton表示“对……表示怀疑”,故D项正确。
30.A.improper B.unbelievable
C.dangerous D.unwise
答案:D
解析:两人都认为,无论某些科学发现多么精彩和有突破性,完全相信科学是不明智的。故D项正确。
31.A.reforms B.failures
C.experiments D.changes
答案:B
解析:通过强调科学的所有失败和缺点,他传达了这样一种观念:自然的秘密被很好地保存着,并且远离人类的理解和控制。空前的举例说大多数克隆体在出生前或出生后不久就表现出发育失败,这是科学上的失败,故B项正确。
32.A.controlled B.digested
C.shared D.applied
答案:A
解析:自然界的秘密被很好地保存着,是人类不能理解和控制的,故A项正确。
33.A.question B.doubt
C.hope D.use
答案:C
解析:政府和私人公司在绘制人类基因组图上投入了数十亿美元,但我们仍然没有希望。空后说无论可能多么有趣,这样的发现都是无用的,因此在绘制人类基因组图上投入再多,我们仍然没有希望,故C项正确。
34.A.provided B.supplied
C.associated D.compared
答案:C
解析:它提供了证据来支持科学,努力揭开自然力量所带来的危险。上文说用科学解开自然的力量是危险的,此处指“与科学努力揭开自然的力量相关的”,故C项正确。
35.A.directly B.especially
C.definitely D.necessarily
答案:A
解析:如果结果不是直接危险的话,它仍然会有有害的副作用。与空后提到的“有害的副作用”相对的自然是“直接(危险)”,故A项正确。
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。
(2020·山东潍坊高三联考)
The World Health Organization (WHO) has made an appeal to scientists,drug manufacturers and governments.The WHO wants them to work together 36.　　　　　　　(develop) drugs to fight 12 bacteria.These bacteria 37.(be) able to resist 38.
　　　　　　(power) antibiotic(抗生素) drugs.The resistance is so unusually strong that all the 12 bacteria have been given a special name “superbug”. 
The United Nations agency reported this week the 12 superbugs are a threat to human 39.　　　　　　　(healthy).It said they have 40.　　　　　　 ability to easily turn treatable infections into killers.The WHO says superbugs can also pass along genetic material 41.　　　　　　 helps other bacteria become resistant to drug treatment. 
Marie-Paule Kieny is the Assistant Director-General at the WHO.She said,“Antibiotic resistance is growing and we are fast running out 42.　　　　　　 treatment options.”She urged governments to give drug companies reasons to develop new treatments.“If we leave it to market forces alone,the new antibiotics we most 43.　　　　　　(urgent) need are not going to be developed in time,”she said. 
Antibiotic drugs can lose their effectiveness when people take more or less than the amount 44.　　　　　　　(require) by doctors.When this happens,infections that 45.(treat) at one time easily become resistant. 
答案:36.to develop　37.are　38.powerful　39.health　40.the　41.that/which　42.of　43.urgently　44.required 45.were treated
第三部分　写作(共两节,满分40分)
第一节(满分15分)
假定你是李华,你的外国笔友Jeff得知你参加了你校学生会主办的“The Chinese Scientist I Admire Most”故事分享会,写信询问有关情况。请你回复邮件,内容包括:
1.感谢关注;
2.你的分享;
3.你的感想。
注意:1.词数80左右,开头和结尾已给出,不计入总词数;
2.可以适当增加细节,以使行文连贯。
Dear Jeff,
Thank you for your attention to the activity themed “The Chinese Scientist I Admire Most”,which was organised by the Students’ Union of our school._________
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Could you please tell me about your favourite scientist?
Yours,
Li Hua
参考范文
Dear Jeff, 
Thank you for your attention to the activity themed “The Chinese Scientist I Admire Most”,which was organised by the Students’ Union of our school.I am more than willing to tell you about the event. 
I shared the story of Mr Yuan Longping,an agricultural scientist known as “Father of Hybrid Rice”.He developed the world’s first successful hybrid rice varieties,which dramatically increased rice production in China.His approach to rice breeding also serves as a solution to food problems around the globe.
The scientists’ stories shared by other participants truly inspired me,motivating me to truly love science by making great contributions to it.Could you please tell me about your favourite scientist? 
Yours,
Li Hua 
第二节(满分25分)
阅读下面材料,根据其内容和所给段落开头语续写两段,使之构成一篇完整的短文。续写词数应为150左右。
Tim recently graduated from the university and was looking for a job.After searching on the Internet,he found out that a famous online business company is recruiting(招聘) a new office manager.Many candidates(求职申请人) applied,but only one would be accepted in the end.
Tim was surprised to see that some of them held a Master’s Degree or Doctor’s Degree.But Tim was only a Bachelor(学士),and hardly met the lowest requirement.Tim felt a bit disappointed.
All the candidates entered the exam hall.Tim looked through the pages of the test paper and found out that the questions were very difficult for him.Tim tried to calm down and started with the easiest ones and moved on to the more difficult ones slowly.
There were two invigilators(监考人) in the hall.They seemed to be quite confident about the honesty of the candidates.After about 10 minutes,one of the invigilators left to answer a phone call.The other invigilator soon went out too.
The atmosphere in the exam hall changed after the invigilators had left.Some of the candidates took out notes and books and some of them brought mobile phones to search for answers,and some even called others for help.Tim looked back,and he saw the candidate sitting behind him cheating too.The man whispered to Tim,as if telling him to cheat in the test because everyone was doing so.Tim shook his head and continued doing the difficult problems at a slow pace.
In about half an hour,the invigilators returned to the exam hall.Tim still had one question left blank at the end of the test.He was almost sure that he was not going to be accepted.
ThetestresultwastoTim’ssurprise. 
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Timthenunderstoodeverythingthathadhappened.
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参考范文
ThetestresultwastoTim’ssurprise.After one week,Tim received an email from the company saying that he was accepted as the new office manager.The next day,Tim went to the chief manager’s office.Before Tim said a word,the chief manager smiled at Tim and explained that he was the candidate sitting behind Tim in the test.
Timthenunderstoodeverythingthathadhappened.The test was carefully arranged to test whether the candidates were honest even if no invigilator was there.The chief manager continued to say that their company was founded based on honesty of the employees.The job of office manager would require the candidate to be independent and honest.In consideration of this,they found that Tim was the most suitable candidate to hold this position.