2018届高考英语(外研版)总复习同步测试必修一Module5ALessoninaLab

Module 5 A Lesson in a Lab一、刷黑板——词汇全听写(先过识记默写关)Ⅰ.阅读词汇(英译汉)[第一屏听写]1．liquid n．液体2．contract vi. 收缩3．substance n. 物质4．oxygen n. 氧气5．rust vi. 生锈[第二屏听写]6．partial adj. 部分的；局部的7．steam n. 蒸汽；水汽8．flame n. 火焰9．potassium n. 钾10．sodium n. 钠[第三屏听写]11．calcium n．钙12．magnesium n. 镁13．aluminium n. 铝14．zinc n. 锌15．copper n. 铜[第四屏听写]16．oxide n．氧化物17．dissolve vi. 溶解；分解；分离18．crucible n. 坩埚19．tongs n. (复)夹子；小钳子Ⅱ.高频词汇(汉译英)[第五屏听写]1．expand vi. 膨胀2．mixture n. 混合物3．electricity n．电4．stage n. 阶段；时期5．conclusion n. 结论[第六屏听写]6．aim n．目标；目的7．reaction n. 反应8．electrical adj. 与电有关的；用电的9．equipment n. 设备；装备10．react vi. (化学)反应[第七屏听写]11．ordinary adj. 普通的；平常的12．form vi. 形成13．balance n. 天平14．lecture n. 演讲15．department n. (大学的)科、系[第八屏听写]16．astonished adj. 吃惊的；惊愕的17．float vi. 漂浮18．facility n. (常作复数)设备；工具19．boil vt. 煮；煮沸20．add_..._to_... 往……加入……[第九屏听写]21．used_to 过去(常常)22．in_the_area_of 在……领域23．be_proud_of 为……感到骄傲/自豪24．be_supposed_to 应当；理应二、刷清单——热身自盘点(再过基本应用关)(一)核心单词。

Module 5 A Lesson in a LabⅠ.阅读理解A(2016·天津B篇) 导学号 58082089Every man wants his son to be somewhat of a clone, not in features but in footsteps.As he grows you also age, and your ambitions become more unachievable.You begin to realize that your boy, in your footsteps, could probably accomplish what you hoped for.But footsteps can be muddied and they can go off in different directions.My son Jody has hated school since day one in kindergarten.Science projects waited until the last moment.Book reports weren't written until the final threat.I've been a newspaperman all my adult life.My daughter is a university graduate working toward her master's degree in English.But Jody? When he entered the tenth grade he became a “vo­tech” student(技校学生)．They're called “motorheads” by the rest of the student body.When a secretary in my office first called him “motorhead”，I was shocked.“Hey, he's a good kid，” I wanted to say.“And smart, really.”I learned later that motorheads are, indeed, different.They usually have dirty hands and wear dirty work clothes.And they don't often make school honor rolls(光荣榜)．But being the parent of a motorhead is itself an experience in education.We who labor in clean shirts in offices don't have the abilities that motorheads have.I began to learn this when I had my car crashed.The cost to repair it was estimated at $800.“Hey, I can fix it，” said Jody.I doubted it, but let him go ahead, for I had nothing to lose.My son, with other motorheads, fixed the car.They got parts(零件)from a junkyard，and ability from vo­tech classes.The cost was $25 instead of $800.Since that first repair job, a broken air­conditioner, a non­functioning washer and a non­toasting toaster have been fixed.Neighbors and co­workers trust their car repairs to him.These kids are happiest when doing repairs.They joke and laugh and are living in their own relaxed world.And their minds are bright despite their dirty hands andclothes.I have learned a lot from my motorhead: publishers need printers, engineers need mechanics, and architects need builders.Most important, I have learned that fathers don't need clones in footsteps or anywhere else.My son may never make the school honor roll.But he made mine.文章大意：天生我材必有用。

题型组合课时练(五)必修1Module 5 A Lesson in a Lab(限时：40分钟)Ⅰ.阅读理解(2017·泉州高三质量检查)When students read articles about scientific discovery，they learn what worked.Scientists present the methods that got the best result.They often show only the results that are significant and important.What they won't show are the mistakes or failures that came first.Yet sometimes those mistakes pointed the way to success.It can take a long time and many experiments to achieve scientific success.Robbin，16，and Annabelle，15，learned that while working this summer in a biochemistry lab at Stony Brook University in New York.What's more，they learned that failure is not necessarily something to fear.“I like the idea of scientific research，”says Robbin.It's the basis for “every lesson you learn in school and understanding everything you see in life”. This summer，Robbin has been working with Lauren，a chemistry student，who is making new drugs to fight harmful bacteria.At first，the tests made Robbin anxious.She worried that she might be making costly mistakes.But Lauren reassured her that finding out what doesn't work is “just part of t he learning process”．With time，the teen got comfortable with the idea that every experiment wouldn't succeed.Annabelle also learned a lot about failure and success.She worked with graduate student Agnieszka Gil.“Sometimes I try something and it takes a while for the experiment to run.”This means that finding out whether Annabelle did something wrong can be a stressful waiting game，because “if you did something wrong you need to do it again”．But she's now learning to be patient and not to expect instant success.In science，figuring out why something failed is what may just put them on the road to success.【语篇解读】在阅读科学发现的文章时，人们往往对科学成就过度关心，其实科学成就往往是建立在无数次失败的基础之上的。

Module 5 A Lesson in a LabⅠ.用所给词的适当形式填空导学号 580820851．We all know that a___balanced__ (balance) diet is of great importance to our health.2．Her parents' ___reaction__ (react) to the news was surprisingly calm.3．___Aimed__ (aim) at improving the level of English, English Corner is held once a week.4．I found something large___floating__ (float) in the sea about a mile away from the shore.5．___Mixed__ (mixture) with tiny drops of rain, the wind blew across our faces.6．I ___concluded__ (conclusion) from what they said that they wanted to accept the offer.7．This novel is an___expansion__ (expand) of a short story he wrote about forty years ago.8．The cooker isn't working because of an ___electric fault. The machine is driven by ___electrical__motor. (electricity)Ⅱ.完成句子导学号 580820861．你想把你的名字加到名单里吗？Do you want to___add_your_name_to__ the list?2．我们必须远离战争，和平才是我们最想要的。

Ⅰ.单句语法填空1．I’m going to take part ________ the Dragon Boat Training Camp this summer. 2. ________ (amaze)，she stood and stared while the police arrested her husband. 3．What is your attitude ________ senior high students taking up a part－time job? 4．We are looking forward to ________ (have) your early reply to this matter. 5．The guide gives a general ________ (describe) of the island.6．Under the teacher’s ________ (instruct)，we have made great progress in our physics study.7．The new road is twice ________ (wide)than the old one.8．Are you free now? I want to have a word ________ you.9．Don’t instruct your secretary ________ (say) you are out when you are in. 10．I enjoy reading the book and ________ does my wife.答案 1.in 2.Amazed 3.towards/to 4.having5．description 6.instruction 7.wider 8.with 9.to say 10.soⅡ.单句改错(每句仅1处错误)1．Anything will become bored if you do it repeatedly.2．We are looking forward to receive your e－mail in no time.3．If you attend the party，neither will I.4．Now it is very easy and quick to get informations from the Internet with just a computer.5．I am boring with Mr.Wang’s talking；I can’t wait any longer for its end. 6．Failing the exam，he had a disappointing look on his face.7．You’d better not be late again for class；in other word，you are expected to be on time next time.答案 1.bored→boring 2.receive→receiving 3.neither→sormations→information5.boring→bored6.disappointing→disappointed7.word→wordsⅢ.课文缩写语法填空Today is my first day at Senior High School.I am writing down my thoughts about it.My new school is very good.The teachers are very enthusiastic and 1.________ (friend)．The classroom is 2.________ (amaze)，which has a computer with a special screen behind it.The teachers write 3.________ it.My English teache r’s teaching method is completely different from 4.________ of the teachers at Junior High.The teacher is a very enthusiastic woman 5.________(call) Ms Shen.The class is really interesting.We have fun.We introduce 6.________(our) to each other.Ms Shen gave us instructions and then we 7.________(work) by ourselves.In our class，there are three times as many girls 8.________ boys and they all work hard.For our homework tonight，we have to write a description of the street 9.________ we live.I’m looking forward to 10.________(do) it.答案 1.friendly 2.amazing 3.on 4.that 5.called 6．ourselves 7.worked 8.as 9.where 10.doingⅣ.单元考点作文串记一、根据提示翻译句子1．我的新学校很美丽，它完全不同于我初中的学校。

005 Book 1 Module 5 A Lesson in a Lab一、课标、考纲要求（预习课完成并背过任务）I. 请熟记下列重点词汇，词性：名词 (可数不可数）动词（及物不及物）及构词法1. 膨胀；扩展；使变大v.2. 收缩 vi.3. 混合物 n. ___ v.______ 4. 阶段；时期；舞台n. 5 .结论 n. v. 6.目标；目的n. 7. (大学的)科、系n. 8. 漂浮vi 9. 形成 vi.10. 天平 n. 11. 吃惊的adj. 12. 设备；装备 n 13. 普通的；平常的 adj. 14. partial adj. 15. dissolve vi16.substance n._____17. facility n.II. 请写出本模块的重点短语：1.过去（常常）__________________2.与…发生(化学)反应_________________3.使…整齐/有条理________________4.在…领域__________________________5.在…的底部/顶部_______________6.开始做/进行吧_____________________7.往…加入…____________________ 8.为…感到骄傲/ 自豪________________9.防止…进入…_________________ 10.理应/应当_________________________11. 对…作出回应 _____________ 12. 目的是，旨在___________________III．请熟记下列重点句型：1.When we use metals, it is important to know how they react with differentsubstances, for example water and oxygen.2. It is hard to think of a world without metals.3. Here is a table with the metals that react most at the top, and the metals that reactleast at the bottom.4. The closer you are, the more you’ll see.5. I am going to try to go to either Montreal or Ottawa University, as both aresupposed to have good Physics Departments.6. Where do you go from here?7. You have got it!二、复习任务（课堂任务）A. 请写出以下词汇的词形变化和常用短语/句型1. form2. conclusion3. react4. addB. 请区分辨别以下词汇：1. ordinary, common, usual, normal2. used to, would三、自主检测（预习课任务）1. Different metals have different uses, for example, steel is used in cars, and iron is used in _______________(电器设备).2. 下面是对一个简单科学实验的描述。

Part 2 课时训练Ⅰ.单词拼写1.He had to (平衡) the need for training against the money it cost.2.The (火焰) of the burning candle soon went out.3.There was an (吃惊的) look on his face when he heard the news.4.Our classrooms have been equipped with modern (设备).5.Her long (演讲) tired the audience out.6.Who is the dean of the Foreign Language (大学的系)?7.When you’re tired of swimming,just (漂浮) for a while.8.He is (自豪) of his daughter’s ability to speak four languages.9.Scientists in China have made many (科学的) discoveries in recent years.10.Heat gently until the sugar (溶解).答案:1.balance 2.flame 3.astonished 4.facilities 5.lecture 6.Department 7.float 8.proud 9.scientific 10.dissolvesⅡ.完成句子1.她因在拐弯处骑得太快,失去平衡而倒了。

She cycled too fast round the corner, and fell off.2.有人记得那里曾经有一张图或地毯。

One remembered where a picture or a carpet.3.他为他的孩子们所取得的成就而感到无比自豪。

外研版必修一Module 5 A Lesson in a Lab 单元测试题2第一部分：听力（共两节，满分30分）第一节（共5小题；每小题1.5分，满分7.5分）听下面5段对话。

每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。

听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。

每段对话仅读一遍。

1.How many minutes has the man been late?A. Twenty.B. Twenty-seven.C. Twenty-six.2.What is the man probably?A. A guide.B. A visitor.C. A passer-by.3.Where does the conversation probably take place?A. At the clinic.B. In a gym.C. In the hotel.4.What do you know about the man?A. He hasn’t eaten any beefsteak.B. He lost his first beefsteak.C. He’s too full to eat another beefsteak.5.Why did the woman get the book so late?A. The man forgot it.B. The man’s boss forgot about it.C. The woman wasn’t at home.第二节（共15小题；每题1.5分，满分22.5分）听下面5段对话或独白。

每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。

听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后，每小题将给出5秒钟的作答时间。

2018届高考英语一轮单元总复习讲义精品荟萃：外研版必修1Module 5部门： xxx时间： xxx制作人：xxx整理范文，仅供参考，勿作商业用途2018届高考英语一轮单元总复习讲义精品荟萃外研版必修一Module 5知识详解① expand vi. 膨胀vt. 扩大，扩充(回归课本P41>When you heat a metal，it expands.当你加热金属时，它就会膨胀。

【归纳总结】expand sth.使……膨胀，扩大expand on/upon sth.详述，充分叙述expansion n.扩张，膨胀① Metals expand when they are heated.金属受热会膨胀。

②As children grow older they expand their interests and become more confident.b5E2RGbCAP随着儿童的成长，他们的兴趣会变广，人也会变得更自信。

③Could you expand on that point，please?请你把那一点详细说明一下，好吗？【例句探源】expand，extend，spread, stretch(1>expand展开，扩大，不仅指尺寸的增加，还可指范围和体积的扩大。

(2>extend伸出，延伸，指空间范围的扩大，以及长度、宽度的朝外延伸，也可指时间的延长。

(3>spread伸开，传播，一般指向四面八方扩大传播的范围，如传播(疾病>，散布(信息等>。

(4>stretch伸展，拉长，一般指由曲变直、由短变长的伸展，不是加长。

stretch out 躺下，伸展。

p1EanqFDPw【易混辨析】①Water expands when it freezes.②The hot weather extended to October.③The fire soon spread to the nearby buildings.④The cat_stretched out in front of the fire.1．Why not try to________your story into a novel?A．revise B．summariseC．organise D．expand解读：选D。

Module 5 A Lesson in a Lab一、单元跟踪过关Ⅰ.单句语法填空1．—Would you like to drink some coffee with some sugar or milk?—Oh，I'd like some milk added(add) to the coffee.2．The doctor thought it would be good for you to have a holiday.3．They discussed the problem for a whole day, but they couldn't come to a conclusion(conclude)．4．At first, our company was very small, but after purchasing some smaller ones, it soon expanded(expand) into a larger one.5．The more careful you are，the_fewer(few) mistakes you will make.6．I wasn't sure how you would react to the decision.7．The 2017 College Entrance Examination is around the corner, but we should keep a balance between study and relaxation.8．Please observe the mixture(mix) and write down what you will see.9．I need some boiled(boil) water to wash down medicine after breakfast.10．As far as I am concerned, the government is supposed to_take(take) effective measures to prevent the haze from getting worse.Ⅱ.单句改错1．Two third of the land in that district is covered with trees and grass.third改为thirds2．In a conclusion, I wish all of you success in everything next year.去掉a3．—How did the manager react to the letters of complaint?—Angry.Angry改为Angrily4．After the new equipment was introduced, they produced twice many machines this year than the year before.many改为more5．How beautifully she sings! I've never heard the better voice.the改为a6．Sorry, the heavy traffic kept me coming earlier.me后面加from7．The more careless you are, the more mistake you will make.mistake改为mistakes8．I am glad to see that he speaks English a lot of better than before.去掉of9．I used to smoking and I find it difficult to give it up.used前面加am10．It is generally believed that boys are usually less carefully than girls.carefully改为carefulⅢ.完成句子1．这个车间的青年们组成了突击队。

第一部分　必修五　Module 5Ⅰ.阅读理解A(2015·江西八校高三联考)导学号 02280716 There is a very instructive incident involving the life of Alexander, the great Greek king. Alexander, after conquering many kingdoms, was returning home. On the way, he fell ill and it took him to his death bed. With death staring him in his face, Alexander realized how his conquests, his great army, his sharp sword and all his wealth were of no consequence. So, he lay helplessly waiting to breathe his last. He called his generals and said, “I will depart from this world soon, I have three wishes, please carry them out without fail.”“My first desire is that，”said Alexander, “My physicians alone must carry my coffin.” After a pause, he continued, “Secondly, I desire that when my coffin is being carried to the grave, the path leading to the graveyard be strewn(撒满) with gold, silver and precious stones which I have collected.” The king continued, “My third and last wish is that both my hands be kept hanging out of my coffin.” Alexander's favorite general kissed his hand and pressed them to his heart. “Oh King, we assure you that your wishes will all be fulfilled. But tell us why do you make such strange wishes？”At this Alexander took a deep breath and said, “I would like the world to know of the three lessons I have just learnt. I want my physicians to carry my coffin because people should realize that no doctor can really cure any body. They are powerless and cannot save a person from the clutches of death. So let people not take life for granted.The second wish of strewing gold, silver and other riches on the way to the graveyard is to tell people that not even a bit of gold will come with me. I spent all my life earning riches but cannot take anything with me. Let people realize that it is just a waste of time to chase wealth.And about my third wish of having my hands hanging out of the coffin, I wish people to know that I came empty－handed into this world and empty－handed I go out of this world.” With these words, the king closed his eyes. Soon he let death conquer him and breathed his last.语篇解读：本文主要通过亚历山大去世前的三大愿望告诉读者：珍惜生活，财富生不带来，死不带去。

高中英语外研版必修1Module5 A Lesson in a Lab单元练习一、听力(听力)（共20小题；共20分）听力理解第一节（共5小题；每小题1.5分，共7.5分）听下面5段对话。

每段对话后有一道小题，从每题所给的A、B、C三个选项中选出最佳选项。

听完每段对话后，你将有10秒钟的时间来回答有关小题和阅读下一小题。

每段对话你将听一遍。

例：What is the man going to read?A. A newspaper.B. A magazine.C. A book.答案是A.1. What color T-shirt does the man plan to order?A. Red.B. Blue.C. Green.2. Which section does the man like to read?A. News.B. Sports.C. Entertainment.3. What job will the man probably take in summer?A. Lifeguard.B. Tour guide.C. Swimming coach.4. Where does the woman want to go on holiday?A. Turkey.B. Canada.C. Italy.5. What are the two speakers talking about?A. Shark.B. Camera.C. Movie.第二节（共10小题，每小题1.5分，共15分）听下面4段对话或独白，每段对话或独白后有几道小题，从每题所给的A、B、C三个选项中选出最佳选项。

听每段对话或独白前，你将有5秒钟的时间阅读每小题。

听完后，每小题将给出5秒钟的作答时间。

每段对话或独白你将听两遍。

听第6段材料，回答第6至7题。

6. What test are the speakers going to take on Friday?A. Science.B. History.C. Music.7. Why does the woman speaker make the phone call?A. To discuss her maths problems.B. To seek help with her English reading.C. To ask about the homework for tomorrow.听第7段材料，回答第8至9题。

Module 5 A Lesson in a LabⅠ.单句语法填空1．We all know that a ________ (balance) diet is of great importance to our health. 2．We are proud ________ our achievements and hopeful about the future. 3．Alice was supposed ________ (study) at home，but her mother found her surfing the Internet.4．The more you practise speaking English，the ________ (great) progress you’ll make in it.5．He has got used to ________ (take) a walk in the park after supper every day.6. ________ addition，we shouldn’t neglect that e veryone wants a friendly and peaceful society.7．He expressed his satisfaction with the talks, ________ (add) that he enjoyed his stay here.8．Hearing the news，she felt a strange ________ (mix) of excitement and fear. 9．When the man came in，gun in hand，we all stood there, ________ (astonish)．10．How do other scientists and the public react ________ your research?答案 1.balanced 2.of 3.to study 4.greater5．taking 6.In7.adding 8.mixture 9.astonished 10.toⅡ.单句改错(每句仅1处错误)1．He used to play games on the Internet，but now he is used to read before sleeping. 2．Aiming at improving the level of English，English Corner is held once a week. 3．It was careless for him to leave his umbrella in the store.4．He was astonishing to find his reading ability improved.5．We send notices to visitors，usually in form of an e－mail.6．We came to the conclusion which he was against our plan.7．Put everything in the order before you leave the room.8．The more you practise，the more skillful you become.答案 1.read→reading 2.Aiming→Ai med 3.for→of4．astonishing→astonished 5.form前加the 6.which→that7.去掉第一个the 8.become前加willⅢ.课文缩写语法填空Different metals have different uses.When 1.______ (use) metals，it is important to know how they react with different substances.The 2.________ (react) of metals with these substances can be put in order.From the table，we can find that potassium reacts most 3.________ oxygen and water while copper 4.________ (not react) with water.When we heat calcium in oxygen，it burns 5.________ (form) an oxide.In the second part of the experiment，you must boil the water 6.________ (make) sure there is no air in it.You add some oil to the water 7.________ this keeps air out of it.It also shows 8.________iron doesn’t rust in water without air in it.9.________，the nails rust in the tube with ordinary water in the third part of the experiment.That is 10.________ iron reacts with air and with water.答案 ing 2.reaction 3.with 4.doesn’t react 5.to form 6.to make 7.because 8.that 9.However 10．howⅣ.单元考点作文串记一、根据提示翻译句子1．王刚过去不擅长英语，他的阅读尤其薄弱。

核心素养提升(Module 5)(时间:120分钟满分:150分)第一部分听力(共两节,满分30分)第一节(共5小题;每小题1.5分,满分7.5分)听下面5段对话。

每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。

听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。

每段对话仅读一遍。

(Text 1)M:Would you like to go to the cinema this evening?W:That would be lovely.M:I shall pick you up at six then.1.What will the man do?( B )A.Take the woman to a lovely garden.B.Go to see a film with the woman.C.Pick up the woman at 6:30.(Text 2)M:Now,tell me your trouble,Mrs.Smith.W:I can’t sleep well recently and last night I had a terrible headache.2.What’s the possible relationship between the two speakers?( B )A.Husband and wife.B.Doctor and patient.C.Teacher and student.(Text 3)W:The plane leaves at 6:15.So we have time to eat something first.M:No.We only have 40 minutes left.3.What time is it now?( A )A.It’s 5:35.B.It’s 6:40.C.It’s 6:15.(Text 4)W:What do you think of my new car?M:To be honest,it is no better than mine.4.What’s the man’s opinion of the woman’s car?( C )A.Her car is better than his.B.Her car is cheaper.C.Her car is not so good.(Text 5)W:How did you like your work as a reporter?M:Well,it was interesting.But I had to work long hours;I was never at home on weekends.5.What did the man mean?( A )A.He didn’t like the work because it kept him working long hours.B.He didn’t like the work because it wasn’t interesting.C.He liked the work very much.第二节(共15小题;每小题1.5分,满分22.5分)听下面5段对话或独白。

2018高考英语大一轮复习Module 5 A Lesson in a Lab检测外研版必修1 编辑整理：尊敬的读者朋友们：这里是精品文档编辑中心，本文档内容是由我和我的同事精心编辑整理后发布的，发布之前我们对文中内容进行仔细校对，但是难免会有疏漏的地方，但是任然希望（2018高考英语大一轮复习Module 5 A Lesson in a Lab检测外研版必修1）的内容能够给您的工作和学习带来便利。

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Module 5 A Lesson in a LabⅠ。

完形填空Can birds understand people’s love and even express their appreciation?Gabi Mann,an 8—year-old teenager,has some very 1 “friends” who showed her with gifts almost every day。

Ever since she started feeding her neighborhood crows （乌鸦)，they began returning the 2 and bringing back all kinds of 3 .Gabi's 4 relationship with the neighborhood crows 5 in 2011 when she was four and she was 6 to drop food to them.Soon，the crows were always watching for her，7 to get a bite of the food she dropped。

高考英语一轮总复习 Module 5 A Lesson in a Lab活页练习外研版必修1Ⅰ.单词拼写1．What was his ________(反应)to your remarks?2．We were dressed up for the party but she was still in her ________(平常的)clothes.3．What ________(结论) could be drawn from the passage?4．She went to London with the ________(目标) of finding a job.5．A tyre ________(膨胀)when you pump air into it.6．Her ________(吃惊的)expression suggested that she hadn't expected that result.7．An impression of the company has been ________(形成) by this interview.8．My father caught me and gave me a long ________(演讲) about the dangers of drink.答案 1.reaction 2.ordinary 3.conclusion 4.aim 5.expands 6.astonished 7.formed 8.lectureⅡ.翻译句子1．他竭尽全力，想帮我解脱困境。

(aim)________________________________________________________________________ 2．他过去常住在乡下吧？(used to)________________________________________________________________________ 3．一般都认为此事不会再发生。