人教高中英语必修1-Unit 4课时练习及解析
人教版英语必修1Unit4SectionⅡ练习题及答案解析
Unit 4 Section Ⅱ Warming Up & Reading－Language Points Ⅰ.辞汇知识1．(n.)地震→(同义词)(n.)地震2．(vi.)爆裂；暴发；(n.)突然破裂；暴发→(过去式)→(过去分词)3．(n.)事件；大事4．(n.)民族；国家；国民→(adj.)民族的；国家的5．(n.)废墟；毁灭；(vt.)毁灭；使破产6．(adj.)极度的→(adv.)极度地7．(vt.)损害；损害→(n.)损害；损害8．(vt.)损坏→(n.)破坏，毁灭9．(adj.)无用的；无效的；无益的→(反义词)有效的→(n.)用途；(vt.)利用10．(vt.& vi.)(使)震惊；震动；(n.)休克；冲击；震惊→(adj.)令人震惊的→(adj.)感到震惊的11．(n.&vt.)援救；营救12．(vt.)使陷入窘境；(n.)陷阱；窘境13．vt.埋葬；掩埋；隐藏14．n．掩蔽；掩蔽处；避身处答案：；quake ；burst；burst4．nation；national ；extremely ；injury ；destruction ；useless；use ；shock；shocked Ⅱ.重点短语1．right 立刻；马上2．as 恍如；仿佛3．an end 终止；终结4．ruins 严峻受损；破败不堪5．dig 掘出；发觉6．(great)number of 许多；大量的7．judge 依照/由……判定8．come of 从……里面出来9．of thous ands of 数十万的10．the north of th e city 在城市以北答案：from8．outⅢ.必背句型1．But the one million people of the city，who these events，were asleep as usual that nig ht.可是唐山市的一百万居民几乎都没有把这些情形看成一回事，那天晚上照常上床睡觉了。
(原创)新人教版高中英语必修一Unit4Natural Disasters 课时练习(二)(附答案)
（原创）新人教版高中英语必修一Unit 4 单元课时练习(二）Unit 4 Natural DisastersPeriod 2 Discovering Useful Structures & Listening and Talking& Reading and Writing一、单词拼写1. The volcano e last year killing about 600 people.2. A stable s of materials is needed to complete the building on time.3. If we had not taken necessary precautions, the （台风）would have caused more serious damage.4. Nobody knows whether the （飓风）really had anything to do with global warming.5. Natural selection ensures only the fittest （存活）to pass their genes on to the next generation.6. The liquid can't escape into the air, because it's inside a （管子）.7. The referee finally blew the （哨子）to stop the game.8. A truck went out of control and （撞击）into the back of a bus.9. I showed my pass to the security guard and he （挥手）me through.10. We promise to d the goods to your door within 48 hours of you ordering.二、选词填空in the open air, put up, crash into, first aid kit, on hand,sweep away, carry out, stay calm, stand at, stay away from1. We can make the best decisions when we .2. Don't brake suddenly. The car behind might you.3. Everyone should know the evils of drugs and them.4. We sleep out under the stars, and eat our meals .5. There are experts to give you all the help and advice you need.6. More often than not, it is easier to make a plan than to a plan.7. It is said that the number of the deaths caused by the flood 300.8. In China, people believe fire can bad luck, so, red means good luck.9. Make sure you keep a well-stocked ready to deal with any emergency.10. Many tents were to provide shelters for the homeless in the disaster-hit area.三、单句语法填空1. The project looks at how we could be more （effect）in encouraging students to enter teacher training.2. The more （power）the car the more difficult it is to handle.3. He succeeded the aid of a completely new method he discovered.4. summary, it is my opinion that the whole process of treatment was very successful.5. The president （deliver）a speech on how to effectively solve the immigration problem next week.6. Our English teacher suggests （read）English aloud every morning.7. I was taking am online class in my study I heard a loud noise in the backyard.8. She is the only one of the students won the international award.四、阅读理解Brief Intervention Finds Evidence of Nature’s Impact on HappinessNew research holds the belief that spending time outdoors can contribute to happiness.In fact, if people simply take time to notice the nature around them, it will increase their general happiness and well-being, said Holli-Anne Passmore, a Ph.D. psychology student at the University of British Columbia’s Okanagan campus.Her study, published in the Journal of Positive Psychology, examined the connection between taking a moment to look at something from the natural environment and personal well-being. The study involved a two-week experiment where participants were asked to record how nature they came across in their daily routine made them feel. They took a photo of an item that caught their attention and take down about their feelings in response to it. Other participants tracked their reactions to human-made objects, took a photo and write down theirfeelings, while a nother group did neither.Examples of nature could be anything not human built: A house plant, a dandelion（蒲公英）growing in a crack in a sidewalk, birds, or sun through a window. “This wasn’t about spending hours outdoors or going for long walks in the wilderness,” Passmore says. “This is about the tree at a bus stop in the middle of a city and the positive effect that one tree can have on people.”Passmore reports she was “overwhelmed” not only by the response of her 395 study participants, who submitted more than 2,500 photos and descriptions of emotions, but also by the impact that simply noticing emotional responses to nearby nature had on personal well-being. It also had an impact on their prosocial orientation（亲社会倾向）, which is a willingness to share resources and the value they placed on community, she discovered.“The difference in participants’ well-being — their happiness, sense of elevation, and their level of connectedness to other people, not just nature — was significantly higher than participants in the group noticing how human-built objects made them feel and the control group,” she said.1. Which of the following objects may have the strongest positive effect on human well-beings?A. pictures of flowers on the wall.B. Wild animals shown in the video.C. A wild flower in a street corner.D. large bunch of artificial flowers in the office.2. How many group of people were asked to participate in the study?A. twoB. threeC. fourD. five3. According to the passage, who is the most suitable for volunteer work?A. People who often noticing the nature.B. People who always do the housework.C. People who often notice human-made objects.D. People who love doing exercise in the park.4. Where is the passage probably taken from?A. A news report.B. A science fiction.C. A medical report.D. A n entertainment magazine.Unit 4 Natural DisastersPeriod 2 答案一、单词拼写1. erupted2. supply3. typhoon4. hurricane5. survive6. pipe7. whistle8. crashed9. waved 10. deliver二、选词填空1. stay calm2. crash into3. stay away from4. in the open air5. on hand7. carry out 7. stands at 8. sweep away 9. first aid kit 10. put up三、单句语法填空1. effective2. powerful3. with4. In5. will deliver6. reading7. when8. who四、阅读理解【文章大意】本文是一篇说明文。
高中英语人教版必修一Unit4知识点汇总及强化练习
Unit 4 Earthquakes 单元要点预览I词语辨析II词性改变Ⅲ重点词汇1. burst v.&n. 爆裂, 爆发, 突然裂开[典例]1).The red balloon suddenly burst. 那个红色的气球突然爆了。
2). The police burst through the door.警察破门而入。
3). On hearing the news, Leslie burst into laughter while Tracy burst out crying.一听到这则消息，Leslie突然大笑，而Tracy则突然大哭起来。
4). A burst of hand-clapping followed the ending of the song.歌声结束后响起了一阵掌声。
[重点用法]burst into laughter = burst out laughing 突然大笑burst into tears = burst out crying 突然大哭[练习] 中译英1). 水管在寒冷的天气里常常冻裂。
______________________________________________________________________2). 太阳突然从云端里露出来。
______________________________________________________________________2. rescue n.&vt. 援救，营救[典例]1). The police came to his rescue and pulled him out of the river.警察来救他，把他从河里拉了出来。
2). The rescue team made countless rescues during the earthquake.营救队在这次地震期间进行了多数次救援。
abfpgx人教版必修1一unit4知识梳理解析及随堂练习(含答案)
-+懒惰是很奇怪的东西，它使你以为那是安逸，是休息，是福气；但实际上它所给你的是无聊，是倦怠，是消沉;它剥夺你对前途的希望，割断你和别人之间的友情，使你心胸日渐狭窄，对人生也越来越怀疑。
—罗兰Book1 unit4一、fast reading Structure of the news report :1.Clue ( 线索) of the story: Time order: Before~during~after the earthquake找出每段的中心Para.1 Some strange things happened before the earthquake.Para.2 The world was at an end. The earthquake hit the city.Para.3 The damage of the city in the earthquakePara.4 The rescue to the city2.分段并概括Para.1 Strange things were happening before the earthquake, but no one took any notice of them.Part2-3.The earthquake destroyed the city of Tangshan and shockedthe people very much.part 4.The army came to help the survivors（生还者）,bringing hope for a new life.二、Careful reading1.What happened before the earthquake?Walls of the wells_had deep cracChickens and pigs_were too nervous to eatMice ran out of the fields looking for places to hideFish jumped out of bowls and pondsSound and lights_ were heard and seenWater pipes cracked and burst2.Fill in the blanksMain Idea Detailssigns before Earthquake Para.11.________ things were happening in the countryside in northeast Hebei.2.The water in the wells ____ and ______.3.A _______ gas came out of the cracks.4.The chickens and pigs were too ________to _____.5.Fish ________out of the bowls and ponds.6.Mice _____ out of the fields.7.At ______ am on July 28, 1976, people saw ________ _______ in the sky.Damage caused by earthquake Para. 2-31.At _____ am, the __________ earthquake of the 20th century began .2._______ burst from holes in the ground.3.Hard hills of the rock became rivers of ____.4.________ covered the ground like red autumn leaves.5. Two _______ and most of the bridges fell.6. The railway tracks were now _________pieces of _______.7.______ now filled the wells instead of water.8.Water,food,and ______________ were hard to get.3.Para. 2-3 Data(数据)1. of the nation felt the earthquake .2.A huge crack that was kilometres long and metres wide cut across houses.3.In terrible seconds a large city lay in ruins.4. of the people died or were injured during the earthquake.5.The number of people who were killed or injured reached more than .6.All of the city’s hospitals, _ of its factories and buildings and of its homes were gone.4.Fill in the blank with proper wordsThere was a big _______ in Tangshan in 1976. Before the earthquake, the water in the village wells ____ and fell. The animals were too ____ to eat. But the people didn’t know about it.At 3:42 am, everything began to shake. In fifteen terrible seconds, the large city lay in_____. More than _____ people were killed or injured.Then later that afternoon, _____big earthquake shook Tangshan . But all hope was not ____,because soldiers came to help those_______.1.答案：Strange;rose;fell;smelly;nervous;eat;jumped;ran;3:00;bright; lights2..答案：3:42；greatest；Steam；dirt；Bricks；dams；useless；steel；Sand；electricity3..答案：1/3；8；30；15；2/3；400,000；75%；90%4..答案：earthquake；rose；nervous；ruins；400,000；another；lost；survivors5.True ( T )or false( F ) statement :1. Two-thirds of the nation felt the earthquake. ( )2. All the people in Tangshan were dead or injured during the earthquake. ( )3.All of the city’s hospitals, factories, buildings and homes were damaged in the earthquake.( )4.After the second earthquake, everyone including the rescue workers and doctors were died( )5. Later that afternoon, a terrible earthquake shook Tangshan again. ( )6. People slept outdoors after the earthquake.( )6.Choose the best answer.(1)What is the mood of this passage?A.Sad.B.Serious.C.Serious and a bit sad.D.Calm(2)What can be inferred form the passage?A.If mice run out of the fields looking for places to hide,there must be an earthquake.B.If some natural signs had not been ignored,all the people in Tangshan city might have had a chance to survive.C.There wouldn't have been such a great earthquake,if people had paid enough atten-tion to some natural signs.D.If some natural signs had not been ignored,more people might have had a chance to survive.(3)Which of the following statements can not be part of the main reasons for the heavy loss of life in Tangshan earthquake?A.The earthquake happened in the deep night and people were sleeping in bed at the very movement.B.There weren't enough rescue workers.C.The buildings were poorly constructed and most of them were destroyed in the earth-quake.D.People were not careful enough to notice some natural signs before the earthquake.三.课文全解全析Language points1.Imagine your home begins to shake and you must leave it right away.假设你的家开始晃动,你必须立刻离开imagine:想象imagine doing sth. ; E.g.He often imagines flying in the sky.shake :摇动shake hands E.g.I felt the earth is shaking.right away=at once=in no time 立刻，马上 E.g.You must live right away.你应该马上离开2. For three days the water in the village wells rose and fell,rose and fell.三天来,村子的水井中的水位升升落落不停.@rise (rose,risen) vi.升起, 起身, 高耸, 增长, 上升n.上升, 增加, 上涨, 发生, 出现3rise against反抗They all rose against the king*rise和raise的区别：rise vi.指继续上升，常用于日，月，云，雾，烟，物价，温度，河水，潮水及人的职位等。
高中英语(新人教版)必修第一册课后习题：UNIT 4 Section C(课后习题)【含答案及解析】
UNIT4NATURAL DISASTERSSection C Discovering Useful Structures&Listening and Talking课后篇巩固提升必备知识基础练Ⅰ.单句语法填空1.Never before has their country been so (power) as it is today.2.Having been predicted one day ahead,the volcanic (erupt) didn’t do so much damage.3.At the beginning of the term,students (supply) with a list of books they are expected to read.4.She heard the wind (whistle) through the trees and felt a little frightened.5.Speak (calm) if you think you’re in the right;there’s no need to get angry.6.Knowing what not to do in an (emergent) is as important as knowing what to do.7.After we got to the camping site,we put our tent and began to sleep in it.8.Susan had quit her well-paid job and was working as volunteer in the neighbourhood when I visited her last year.Ⅱ.完成句子1.People who suffered from an earthquake in that area(被很好地供给) food and water.2.To their great surprise,a big fire (喷发) the burning room.3.The youths (被协助) enough materials to carry out their study.4.If you (保持不动),a snake will seldom attack you when you meet it.5.The champions appeared in the stadium (手拉着手).6.You should have a positive attitude,and (上交) the things you found on the campus.7.When the thief was recognized by the policeman,he tried his best to (保持镇静).8.The teacher suggested (进行一次远足) next weekend to make students relaxed.Ⅲ.用适当的关系代词填空1.But in half the cases she wore a specially designed fat suit increased her weight to 180 pounds.2.No sooner did she leave my doorstep than I had emails from two women kids go to my son’s nursery and who recognized my face.3.Being liked creates opportunities for learning and for new kinds of life experiences help somebody gain an advantage.4.You should avoid eating with heavier people order large portions.5.The best books are the ones open further as time passes.6.The only one cares about any mistake is the one who is speaking.7.The village lay near some wetlands became his second home.8.It also doesn’t require a new type of technology people aren’t already familiar with.关键能力提升练Ⅳ.完形填空In 1989 an 8.2 earthquake almost flattened(使变平) America,killing over 30,000 people in less than four minutes.Soon after the earthquake,a father rushed to his son’s school,only to 1 that the building lay in ruins.He remembered the promise he had 2 to his son:“No matter what happens,I’ll always be there for you!” And tears began to 3 his eyes.As he looked at the pile of ruins,it looked hopeless,but he kept remembering his 4 to his son.He rushed there and started digging through the ruins.As he was digging,other helpless parents arrived,5,“It’s too late!They’re all dead!Come on;face reality.There’s nothing you can do!” To each parent,he 6 with the words,“Are you going to help me now?” No one helped.And then he 7 to dig for his son,stone by stone.Courageously he went on alone because he needed to know for himself:“Is my boy 8 or is he dead?” He dug for eight hours...12 hours...24 hours...36 hours...then,in the 38th hour,he 9 back a large stone and heard his son’s 10.He screamed his son’s name,“ARMAND!” He heardback,“DadIt’s me,Dad!I told the other kids not to 11.I told them that if you were alive,you would 12 me and if you saved me,they’d be saved.You promised,‘No matter what happens,I’ll always be there for you!’ You did it,Dad!”“What’s going on in there?” the father asked.“There are 14 of us 13 out of 33,Dad.We’re 14,hungry,thirsty and thankfully you’re here.When the building 15,it made a triangle,and it saved us.”“Come out,boy!”“No,Dad!Let the other kids out first,because I know you’ll get me!No matter what happens,I know you’ll always be there for me!”【语篇导读】本文是一篇记叙文。
人教版高一英语必修一unit4知识点、练习及答案
必修1 Unit 4EarthquakesⅠ.词义搭配1．burst A．save from danger or harm2．ruin B．destruction(破坏)；extreme(极大的)damage3．shelter C．to put something under the ground，often in order to hide it4．disaster D．breaks open or apart suddenly5．even E．being safe from bad weather，danger，etc.6．rescue F．plan to catch someone7．trap G．something very bad happening8．bury H．a thing that happens【答案】1－8DBEGHAFCⅡ.短语填空right away，at an end，dig out，as usual，as if，in ruins，a (great)number of1．He didn't know how to come back home because his money was________________.2．Many buildings are ________________because of the big flood.3．Hurry up！It looks ________________it is going to rain.4．________________people are fond of music.5．On hearing the good news，he shared it with his parents________________.6．He was buried by an avalanche(雪崩)and had to ________________.【答案】 1.at an end 2.in ruins 3.as if 4.A (great) number of 5.right away 6.be dug outⅢ.句型背诵1．In the farmyard，the chickens and even the pigs were too_nervous_to_eat.农家大院里的鸡，甚至猪都因过于惶恐而不想进食。
人教版新课标必修1Unit 4全单元精讲讲义(附练习答案)
Unit 4知识精讲Ⅰ阅读一、知识点精讲：1. shake (1) vi.摇动；震动；颤动；抖动eg: I felt the room shake just now.I was shaking with cold.Shake before using.(2) vt. 摇动；晃动；挥动eg: The earthquake shook the building.shake hands with sb和某人握手；shake one’s head摇头(表示不同意)(3) n. eg: It was the constant shake of his hands that made him give up teaching.2. well (1) n.井eg: The well water here tastes sweet.(2) adv.好；水平很高地（修饰动词）eg: He does well in maths.do well in = be good at擅长于Well done!(3) adj.身体好eg: She isn’t feeling very well today.Well只有在表示身体状况的“好”时才是形容词，其他情况的“好”都是副词。
3. smelly adj.难闻的；发出臭味的eg: The person in rags smells smelly.n. + y变成adj.的词有：cloud→cloudy；snow →snowy；rain →rainy；storm →stormy；dirt →dirty；dust →dusty 4. burst (1) vi. 使爆炸；破裂；爆裂eg: The balloon suddenly burst.She burst into laughter. = She burst out laughingburst into tears = burst out crying(2) n.突然爆发eg: a burst or laughterA burst of hand-clapping followed the ending of the song.burst out迸发；突然发作；突然……起来；burst into闯入；突然出现；burst open推开；忽然打开；裂开5. ruin (1) v.毁坏；使毁灭；破产eg: The storm ruined the crops.He was ruined by that law case.(2) n.毁灭；毁坏；崩溃；堕落[U] eg: Gambling was his ruin.the ruin of his hopes(3) n.废墟；遗迹(常用复数) eg: We visited the ruins of the temple.In a few seconds a large city lay in ruins. 成为废墟6. shock (1) vt.使某人震惊eg: What had happened really shocked me.(2) n.打击；震惊；震动；休克eg: The electricity shock can kill you.We often suffer culture shock when we are in a foreign country.shock表示“一件令人震惊事”时，是可数名词，常和a / an连用。
人教高中英语必修1-Unit 4课时练习及解析.pptx
解析：句意：好像这周有次考试。It seems as if...“好像是……，似乎是……”。
答案：D
8．We must
to all kinds of lies.Let's calm down and settle the problem.
A．come to an end
B．keep one's end up
In 1968，Nauru became one of the richest countries in the world.Every year the government received millions and millions of dollars for its phosphate.
Unfortunately，the leaders invested the money unwisely and lost millions of dollars.In addition，they used millions more dollars for personal expenses.Soon people realized that they had a terrible problem－their phosphate was running out.Ninety percent of their island was destroyed and they had nothing.By 2000，Nauru was almost financially ruined.Experts say that it would take approximately $433,600,000 and more than 20 years to repair the island.This will probably never happen. 16. What might be the author's purpose in writing the text?
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人教版高中英语必修一Unit 4 课时练习Ⅰ.单项填空1．Unfortunately，at least 20 miners were killed,22 ________ and 13 ________ in the coal mine gas explosion.A．injuring；trapping B．injured；trappedC．injured；trapping D．injuring；trapped解析：句意：不幸的是，由于这个煤矿的瓦斯爆炸，至少20名矿工丧生，22名矿工受伤，13名矿工被困井下。
由于22和injure之间为被动关系，13和trap之间也是被动关系，故都用过去分词。
答案：B2．Joining the firm as a clerk，he got rapid promotion，and ________ as a manager.A．ended up B．dropped outC．came back D．started off解析：句意：作为职员加入到公司后，他迅速升职，最后当上了经理。
end up“最终”；drop out“辍学，退出”；come back“回来”；start off“开始”。
故A项正确。
答案：A3．The performance ________ nearly three hours，but few people left the theatre early.A．covered B．reachedC．played D．lasted解析：考查动词词义辨析。
cover“覆盖，包含，涉及，采访”；reach“到达，影响”；play“玩，打，担任(角色)”；last“持续，延续，经受住”。
答案：D4．—Y ou must have had a good time at the party last night，didn't you?—________.Actually，it was a bit boring.A．Oh，great B．I suppose soC．Not really D．That's OK解析：句意：——昨天晚上的聚会你一定玩得很开心，是吧？——也不是非常开心，实际上，昨天的晚会有点乏味。
Not really“不全是，不一定，不见得”，从后面的boring可知C项正确。
答案：C5．Having introduced the new equipment，the company turned out ________ in . as the year before.A．as three times carsB．three times as many carsC．as many cars as three timesD．three times more cars than解析：倍数的表达有如下几种形式：①A is＋倍数＋(形容词或副词)比较级＋than＋B②A is ＋倍数＋as＋(形容词或副词)原级＋as＋B③A is＋倍数＋the＋名词(size，length，height等)＋of＋B④A is＋倍数＋that＋of＋B⑤A is＋倍数＋what引导的名词性从句。
此题考查的是第二种形式的变形，作宾语的名词要放在as...as中间，故选B项。
答案：B6．It is not rare in ________ that people in ________ fifties are going to university for further education.A．90s；the B．the 90s；/C．90s；their D．the 90s；their解析：表示“在几十年代”用“in＋the＋逢十的数词复数”；表示“在某人几十岁”时，用“in ＋one's＋整十位数的复数形式”。
in the 90s意为“在90年代”；in one's fifties意为“在某人五十多岁时”。
答案：D7．________ seems as if there will be an examination this week.A．What B．ThatC．This D．It解析：句意：好像这周有次考试。
It seems as if...“好像是……，似乎是……”。
答案：D8．We must ________ to all kinds of lies.Let's calm down and settle the problem.A．come to an end B．keep one's end upC．put an end D．bring it to an end解析：依据题意，空格处应表示“结束……，使……终止”，to后为终止的对象。
答案：C9．I am very ________ with my living room.It really has a ________ atmosphere here.A．pleased；pleased B．pleased；pleasantC．pleasant；pleased D．pleasant；pleasant解析：考查形容词辨析。
pleased“感到高兴的，感到满意的”，常用于形容人，多作表语，用在be pleased with结构中；pleasant“令人愉快的”，常用于修饰物，多作定语。
答案：B10．The number of endangered plants and animals ________ increasing，because a large number of their natural habitats ________ being destroyed.A．are；are B．are；isC．is；are D．is；is解析：句意：濒临灭绝的动植物的数量在增加，因为它们大量的天然栖息地正遭到破坏。
“the number of＋名词”作主语，谓语动词用单数；“a number of＋名词”作主语，谓语动词用复数。
答案：C11．Italy's captain Fabio Cannavaro was officially named European Footballer of the Year，though ________ of the fans seemed to agree.A．each B．no oneC．every D．not all解析：考查不定代词及部分否定的用法。
no one表示完全否定，not all表示部分否定，根据题意应选D项。
答案：D12．(.年安徽联考)There are dozens of Chinese restaurants in Chicago，but only a few ________ from the others.A．stand out B．try outC．work out D．break out解析：句意：在芝加哥有许多中国餐馆，但只有几家比其他的突出。
stand out“突出，显眼”；try out“试验”；work out“算出”；break out“爆发”。
答案：A13．I ________ myself in my studies.In return，I gained great success.A．placed B．hadC．laid D．buried解析：bury oneself in sth.相当于be devoted to sth.意思是“全心致力于……”。
答案：D14．—Have you heard of the nuclear test of the Democratic People's Republic of Korea?—Yes，________ news came as ________ shock to me.A．the；a B．the；theC．a；a D．a；the解析：从第一句可知这个消息是特指，故第一个空用the；a shock“一件令人震惊的事”。
答案：A15．Fortunately somebody who happened to be passing by called the fire department ________ the fire broke out.A．hurriedly B．quicklyC．instantly D．shortly解析：四个选项中，只有instantly可用作连词，意为“一……就……”。
答案：CⅡ.阅读理解(.年山东卷)阅读下列短文，从每题所给的四个选项(A、B、C和D)中选出最佳选项。
AThe Pacific island nation of Nauru used to be a beautiful place.Now it is an ecological disaster area.Nauru's heartbreaking story could have one good consequence－other countries might learn from its mistakes.For thousands of years，Polynesian people lived on the remote island of Nauru，far from western civilization.The first European to arrive was John Fearn in 1798.He was the British captain of the Hunter，a whaling ship.He called the island Pleasant Island.However，because it was very remote，Nauru had little communication with Europeans at first.Then whaling ships and other traders began to visit，bringing guns and alcohol.These elements destroyed the social balance of the twelve family groups on the island.A ten-year civil war started，which reduced the population from 1,400 to 900.Nauru's real troubles began in 1899 when a British mining company discovered phosphate(磷酸盐) on the island.In fact，it found that the island of Nauru was nearly all phosphate，which is a very important fertilizer for farming.The company began mining the phosphate.A phosphate mine is not a hole in the ground；it is a strip mine.When a company strip-mines，it removes the top layer of soil.Then it takes away the material it wants.Strip-mining totally destroys the land.Gradually，the lovely island of Nauru started to look like the moon.In 1968，Nauru became one of the richest countries in the world.Every year the government received millions and millions of dollars for its phosphate.Unfortunately，the leaders invested the money unwisely and lost millions of dollars.In addition，they used millions more dollars for personal expenses.Soon people realized that they had a terrible problem－their phosphate was running out.Ninety percent of their island was destroyed and they had nothing.By 2000，Nauru was almost financially ruined.Experts say that it would take approximately $433,600,000 and more than 20 years to repair the island.This will probably never happen.16．What might be the author's purpose in writing the text?A．To seek help for Nauru's problems.B．To give a warning to other countries.C．To show the importance of money.D．To tell a heartbreaking story of a war.解析：作者意图题。