(word完整版)高中英语时态语态讲义及习题

最新高中英语十六种时态精讲及练习题附答案(word版可编辑修改) 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（最新高中英语十六种时态精讲及练习题附答案(word版可编辑修改)）的内容能够给您的工作和学习带来便利。

同时也真诚的希望收到您的建议和反馈，这将是我们进步的源泉，前进的动力。

本文可编辑可修改，如果觉得对您有帮助请收藏以便随时查阅，最后祝您生活愉快业绩进步，以下为最新高中英语十六种时态精讲及练习题附答案(word版可编辑修改)的全部内容。

最新高中英语十六种时态精讲及练习题附答案1 一般现在时的用法1）经常性或习惯性的动作，常与表示频率的时间状语连用.时间状语: every…， sometimes, at…, on SundayI leave home for school at 7 every morning。

2) 客观真理，客观存在,科学事实。

The earth moves around the sun。

Shanghai lies in the east of China.3) 现在时刻的状态、能力、性格、个性.Ann Wang writes good English but does not speak well。

2 一般过去时的用法1)在确定的过去时间里所发生的动作或存在的状态。

时间状语有：yesterday， an hour ago， the other day， in 1982 yesterday morning（afternoon, evening…）last night （week, month， year…)， a moment ago ，a week ago, three years ago…just now，等。

Where did you go just now？2）表示过去习惯性动作.特别是由would/ used to do表达的句型，本身表示的就是过去时。

动词的时态与语态动词的分类：实义动词（及物动词、不及物动词）、连系动词、情态动词、助动词。

动词的时态、语态的重难点及高考考点：有八种时态在高考中经常考到1、一般现在时；2、一般过去时；3、一般将来时；4、现在进行时；5、过去进行时；6、现在完成时；7、过去完成时；8、过去将来时。

而其中最易混淆的三组时态是1、一般过去时和现在完成时；2、一般过去时和过去完成时；3、现在完成时和过去完成时动词语态：动词语态包括主动语态和被动语态，而被动语态是学习和备考的难点。

动词的时态：英语中的谓语动词要根据使用的时间不同而发生变化。

一般一个动词具有四种变化形式：一般现在时的单数三人称形式（用于一般现在时且主语是单数三人称时），动词的过去式（用于一般过去时），动词的现在分词（用于进行时），动词的过去分词（用于完成式和被动语态），各种词形变化都有相应规则，需熟记。

一般现在时：一、概念：经常发生的动作或习惯性的行为。

二、常连用的时间副词：always,every time, now and then,occasionally,often,seldom,sometimes, usually, frequently, once in a while.三、句型结构：（以动词work为例）主动结构：S+work/works+O; S+can/must+work+O; S+am/is/are+P.被动结构：S+am/is/are+worked(+by+O).四、常考的考点：(一)、在时间、条件、方式、让步状语从句中代替将来时态。

Eg:1.The water (pollute )unless some measures (take).2.Even if she (not come )this weekend, I (go) fishing by myself.3.He (visit) his aunt the day he (come) to Beijing.（二）、表示现在时刻存在的状态，这种状态带有一定的持续性。

高中英语动词时态语态讲解及练习1、一般现在时主要用来表示人、事物的在状况和特点；表示常或性的作，句子中常有often, always, from time to time等状；表示客律和永恒真理等。

He usually goes to work at 7 o’clock every morning.The earth goes around the sun.Guangzhou is situated in the south of China.考点一：表示永恒的真理，即使出在去的境中，仍用一般在。

如：I learned that the earth goes around the sun when I was in primary school.考点二：在和条件状从句中，代替一般将来；常用的引有：：when, until, after, before, as soon as, once, the moment/the minute, the day; 条件： if, unless, provided.If he accepts the job, he will get more money soon.考点三：在 make sure (certain), see to it, mind, care, matter＋从句，从句用一般在代替一般将来。

So long as he works hard, I don’t mind when he finishes the experiment.只要他努力工作，我不介意他什么候做完。

考点四：在 the more ⋯ the more⋯(越⋯⋯越⋯⋯)句型中,若主句是一般将来,从句通常用一般在。

The harder you study, the better results you will get.2、现在进行时表或目前一段内正在行的活：或表感情色彩，加气。

中学英语语法复习讲义——动词的时态一. 概念:时态是英语谓语动词的一种形式,表示动作发生的时间和所处的状态.英语中的时态是通过动词形式本身的变更来实现的.英语有16种时态,但中学阶段较常用的有十种:一般现在时,一般过去时,一般将来时,过去将来时,现在进行时,过去进行时,将来进行时,过去完成时,英在完成时和现在完成进行时.二.相关学问点精讲1.一般现在时的用法1) 常常性或习惯性的动作，常与表示频腮度的时间状语连用。

时间状语：every…, sometimes,at…, on Sunday。

例如：I leave home for school at 7 every morning. 每天早上我七点离开家。

2) 客观真理，客观存在，科学事实。

例如：The earth moves around the sun. 地球绕太阳转动。

Shanghai lies in the east of China. 上海位于中国东部。

3) 表示格言或警句。

例如：Pride goes before a fall.骄者必败。

留意：此用法假如出现在宾语从句中，即使主句是过去时，从句谓语也要用一般现在时。

例：Columbus proved that the earth is round. 哥伦布证明了地球是圆的。

4) 现在时刻的状态、实力、性格、特性。

例如：I don't want so much. 我不要那么多。

Ann writes good English but does not speak well. 安英语写得不错，讲的可不行。

比较：Now I put the sugar in the cup. 把糖放入杯子。

I am doing my homework now. 我正在做功课。

第一句用一般现在时，用于操作演示或指导说明的示范性动作，表示言行的瞬间动作。

其次句中的now是进行时的标记，表示正在进行的动作的客观状况，所以后句用一般现在时。

时态的用法：1. 一般现在时(1) 一般现在时的形式a. 主语为第三人称单数，在原形动词后加-s或-es。

b. be的变化：am, is, arec. have的变化；has, have(2) 一般现在时在高考中的基本用法详见下表的总结：(3) 一般现在时的特别用法详见下表的总结：1.（06 辽宁）The father as well as children _____ every Sunday afternoon in winter.A. is goingB. goC. goesD. are going2.(06上海) Send my regards to your lovely wife when you _______ home.A. wroteB. will writeC. have writtenD. write3.(08湖南) —Do you have any problems if you ______ this job?—Well, I’m thinking about the salary….A. offerB. will offerC. are offeredD. will be offered4.(06辽宁) I think it is necessary for my 19-year-old son to have his own mobile phone, for I sometimes want to make sure if he _____ home for dinner.A. comeB. comesC. has comeD. will come5. According to the time-table, the train for Shanghai _____ at 7 o’clock in the evening.A. leavesB. has leftC. was leftD. will leave6. (06四川) Look at the timetable. Hurry up! Flight 4026 ____ off at 18:20.A. takesB. tookC. will be takenD. has taken7. Galileo collected facts that proved the earth _____ around the sun.A. movedB. movesC. has movedD. had moved8. ——Can I help you, sir? ——Yes, I bought this radio yesterday, but it ____.A. didn’t workB. won’t workC. can’t workD. doesn’t work9. (06浙江) This machine _______. It hasn’t worked for years.A. didn’ t workB. wasn’ t workingC. doesn’ t workD. isn’ t working10. (06全国) The house belongs to my aunt but she______ here any more.A. hasn't livedB. didn't liveC. hadn't livedD. doesn't live11. Every few years, the coal workers their lungs X-rayed to ensure their health.A. are havingB. haveC. have hadD. had had12. Barbara is easy to recognize as she’s the only one of thewomen who _____evening dress.A. wearB. wearsC. has wornD.have worn13. The palace caught fire three times in the last century, andlittle of the original building____now.A. remainsB. is remainedC. isremaining D. has been remained14. The wet weather will continue tomorrow， when a coldfront _____ to arrive.A. is expectedB. is expectingC.expects D. will be expected15. --- Have you seen my e-mail about our TESL, project?--- Yes. Luckily, I checked my e-mails yesterday. Normally,I ____ my e-mail-box for days.A．haven’t opened B．didn’t open C．hadn’t opened D．don’t open16. He will come to see you the moment he ______his work.A. will finishB. finishesC. would finishD.had finished17. If their marketing plans succeed，they ____ their sales by 20 percent.A. will increaseB. have been increasingC. have increasedD. would be increasing18. —Shall I call at your house at seven o’clock tomorrow evening?—I ______ a walk in the park. So you won’t find me at home then.A. shall be takingB. shall takeC. will takeD. am taking19. --- Let’s discuss the question raised last night, shall we?--- There is no hurry for that. I ____ for a conference.A. headedB. was headingC. am headingD. have headed20. Once education is made free，many children who have dropped out of school ____ .A. will come backB. came backC. have come backD. had come back21. --- Ring me at six tomorrow morning, will you? --- Why that early? I ______ .A. will be sleepingB. have sleptC. have been sleepingD. will sleep22. —Is Tom still smoking?—No. By next Saturday he _______ for a whole month without smoking a single cigarette.A. will goB. will have goneC. goesD. has been going23. --- Look at these black clouds . It _______ soon --- Sure. If only we ________ out.A .is raining, didn’tcome B. is to rain, won’t start..C. will rain, ha ven’t startedD. is going to rain, hadn’t come24. My money ______. I’d better go to the bank to draw some in case I ______ none in hand.A. has run out; will haveB. is running out; haveC. has been run out of; will haveD. is running out of; have25. — Sorry, I _______ to buy the book you need for you.— Never mind. _______ it myself after school.A. forget; I’d rather buyB.forgot; I’ll buyC. forgot; I’m going tobuy D. forge t; I’d better buy26. Ladies and gentlemen, please fasten your seat belts. The plane ________.A. takes offB. is taking offC. has taken offD. tookoff27. By the time you arrive in London，we ____in Europe for two weeks ．A．shall stay B．have stayed C．will have stayed D．have been staying28. Why not come over at the weekend? The children______seeing you again．A．enjoyed B．will enjoy C．would enjoy D．have enjoyed29. —We should get together next week. —Sounds like a plan!I ____ you a call.A. will giveB. would giveC. have givenD. give30. I ___ pingpong quite well, but I haven’t had time to play since the new year.A. will playB. have playedC. playedD. play31. ---- _______ leave at the end of this month.---- I don’t think you should do that until _____ another job.A. I will; you’ve foundB. I’m going to ; you’ve foundC. I will ; you’d findD. I’m going to ; you’d find32. ----- How can I apply for an online course ？----- Just fill out this form and we ____ what we can do foryou.A. seeB. are seeingC. have seenD. will see33. ---- What are you going to do this afternoon ?---- I am going to the cinema with some friends. The film ____ quite early, so we ___ to the bookstore after that.A. finished; are goingB. finished; goC. finishes; aregoing D. finishes; go34. I feel it is your husband who ____ for the spoiled child.A. is to blameB. is going to blameC. is to be blamedD. should blame35. Remember to send me a photo of us next time you ___ to me.A. are writingB. will writeC. has writtenD.write36. Because the shop ________ , all the T-shirt are sold at halfprice.A. has closed downB. closed downC. is closing downD. had closed down37. Do I have to take this medicine ? It _____ so terrible.A. tastesB. is tastingC. is tastedD.has tasted38. ---- Would you like to tell me what our teacher said justnow?---- She said that light _____ faster than sound.A. travelsB. traveledC. would travelD.was traveling39. There ________ a dolphin show in the zoo tomorrow evening.A. wasB. is going to haveC. will haveD. is going to be2. 一般过去时(1) 一般过去时形式：a. be动词的形式变化。

4× 4=16一般时进行时完成时完成进行时例如 studystudy am studyinghave studied have been studying现在is studyingstudies has studied has been studyingare studying过去studied was studyinghad studied had been studying were studying将来shall study shall be studying shall have studied shall have been studyingwill study will be studying will have studied will have been studying 过去将来should study should be studying should have studied should have been studyingwould study would be studying would have studied would have been studying八种高中英语需要掌握的时态★一般现在时1、表示现在习惯性的动作或存在状态。

---How often does she visit her parents?---Twice a month.2、永恒的真理和客观事实。

Summer follows spring.Practice makes perfect. 熟能生巧。

3、表示主语的特征、能力和状态This cloth feels soft.这布摸上去很软。

I love classical music.我喜欢古典音乐。

The President still seems able to find time to go fishing.4、①在条件、让步或时间状语从句中，经常使用一般现在时代替一般将来时。

高中英语语法之常用时态知识点和练习题英语六种常用时态知识点一、一般现在时 (be;do/does)1.概念：表示现在发生的动作、情况、状态和特征。

经常性、习惯性动作。

标志词：often, sometimes, usually, always, occasionally 等和时间状语如 in the evening, at night, twice a month, on Sundays, every day/week/month/year,等。

用法：（1）.客观事实和普遍真理。

The earth runs around the sun.（2）表示一个按规定、计划或安排要发生的动作，（仅限于某些表示“来、去、动、停、开始、结束、继续”等的动词）可以与表示未来时间的状语搭配使用。

常见的用法是：飞机、火车、轮船、汽车等定期定点运行的交通方式。

The next train leaves at 3 o'clock this afternoon.下一趟火车今天下午3点开车。

How often does this shuttle bus run?这班车多久一趟？（3）在由 when, after, before, until, till, as soon as,等引导的时间状语从句或由if, so/as long as, once, even if, although, whether…or…, in case, whatever, whenever, wherever 等引导的条件状语从句中，通常用一般现在时代替一般将来时（主将从现）。

When you have finished the report, I will have waited for about 3 hours.等你完成这份报告的时候，我就已经等了将近3个小时了。

二、一般过去时1.概念：表示过去某个时间发生的动作或情况。

2.标志词：yesterday, last year, last night, the other day, just now, then, two days ago, in , at that time等。

高中英语时态语态讲义及习题编辑整理：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（高中英语时态语态讲义及习题）的内容能够给您的工作和学习带来便利。

同时也真诚的希望收到您的建议和反馈，这将是我们进步的源泉，前进的动力。

本文可编辑可修改，如果觉得对您有帮助请收藏以便随时查阅，最后祝您生活愉快业绩进步，以下为高中英语时态语态讲义及习题的全部内容。

动词的时态和语态一。

动词的分类及形式：（一）根据用法：①实义动词：及物动词：后必须直接加宾语；不及物动词:不能直接加宾语。

②系动词：后加表语。

③助动词：基本助动词:用来构成时态和语态，本身无具体意义。

情态助动词：本身有词汇意义，后加动词原形.(除ought to）（一）根据语法作用：谓语动词和非谓语动词。

1.谓语动词:在句中作谓语，形式上要与句中主语在_____，____ 和___上保持一致。

He wants to buy a new bicycle。

2.非谓语动词：___________,_________，__________,_____________.不能单独作谓语，作主语、宾语、表语、定语、状语、补语。

He wants to buy a new bicycle.I’m sorry for having to bother you.(三）动词的五种基本形式：二．动词的时态：动词时态是一种动词形式。

英语的时态有：现在、过去、将来、过去将来。

从方式上看,英语时态又有：一般、进行、完成、完成进行。

共有16种时态。

以work为例。

（一）一般现在时：1.表习惯性，反复出现的动作。

我通常9点睡觉。

______________________________.常用的时间状语：always, often, sometimes, every day, noe and then.2.表主语的特征、性格或感觉、状态：全世界男女老少都喜爱运动：_________________________________________。

高中英语动词时态和语态专项练习题附答案而语境中的时态和语态拥有灵便多变的特点，所以找出隐含于上下文中的时间信息，正确认定动作行为所发生的时间是解题的要点。

做动词时态和语态填空题时，常常按以下几个步骤：(1) 注意题干所供应的信息，如语境、情况以及说话人的感情;(2) 依照句中的时间状语以及一些副词判断时态 ;(3) 考虑语态 ;(4)考虑时态的一致性。

别的，复习时，还要涉及到短暂性动词与连续性动词，这两个看法必然要搞清。

短暂性动词用于进行时态和完成时态都要碰到限制。

1.(2002 全国高考题 )— You haven ’ t said a word about my new coat，Brenda.Do you like it?— I ’ m sorry I ________ anything about it sooner.I certainly think it’ s pretty on you.A.wasn ’ t sayingB.don ’ t sayC.won ’ t sayD.di dn’ t say2.(2002 全国高考题 )I wonder why Jenny ________us recently.We should have heard from her bynow.A.hasn ’ t writtenB.doesn ’ t writeC.won ’ t writeD.hadn ’ t written3.(2003 北京春季高考题 )— When will you come to see me ， Dad?—I will go to see you when you ________ the training course.A.will have finishedB.will finishC.are finishing4.(2003 北京春季高考题 )— How long ________ at this job?—Since 1990.A.were you employedB.have you been employedC.had you been employedD.will you be employed5.(2003上海春季高考题 )By the end of last year ， another new gymnasium ________ in Beijing.A.would be completedB.was being completedC.has been completedD.had been completed6.(2002北京高考题 )The little girl ________her heart out because she ________ her toy bear andbelieved she wasn’ t ever going to find it.A.had cried; lostB.cried; had lostC.has cried; has lostD.cries; has lost7.(2002北京高考题 )—Excuse me， sir.Would you do me a favor?—Of course.What is it?—I ________ if you could tell me how to fill out this form.A.had wonderedB.was wonderingC.would wonderD.did wonder8.(2002 上海高考题 )He will have learned English for eight years by the time he ________ fromthe university next year.A.will graduateB.will have graduatedD.is to graduate9.(2002 上海高考题 )I feel it is your husband who ________for the spoiled child.A.is to blameB.is going to blameC.is to be blameD.should blame10.He has been writing the composition the whole morning and he still ________.A.has been11.If city noises ________ from increasing ，people ________ shout to be heard even at the dinnertable 20 years from now.A.are not kept; will have toB.are not kept; have toC.do not keep; will have toD.do not keep; have to12.The price ________ ， but I doubt whether it will remain so.A.went downB.will go downC.has gone downD.was going down13.— How long ________ each other before they ________ married?—For about a year.A.have they known; getB.did they know; getC.do they know; are going to getD.had they known; got14.You can ’ t move in right now.The house ________.A.has paintedB.is paintedC.is being paintedD.is painting15.— Hey， look where you are going!—Oh ，I ’ m terribly sorry.________.16.The reporter said that the UFO ________ east to west when he saw it.A.was travelingC.had been travelingD.was to travel17.— Is this raincoat yours?—No ，18.I turned around and saw everybody ________ at a man who ________ loudly in a foreignlanguage.A.was staring; was shoutingB.was staring; shoutingC.staring; shoutingD.stared; shouted19.Henry remained silent for a moment.He ________.B.had thoughtC.was thinkingD.was thought20.We would like to go and thank him ourselves ， but we ________ out his address yet,A.haven ’ t foundB.hadn ’ t foundC.didn ’ t findD.don ’ t find21.Shirley ________ a book about China last year but I don’ t know whether she has finished.A.has writtenC.had writtenD.was writing22.— Have you got your test result?—Not yet.The papers ________.A.are not correctingB.have not correctedC.are still being correctedD.have already been corrected23.See the clouds! It ________ rain!B.is going to24.Do I have to take this medicine? It ________ so terrible.25.Don ’ t take the magazine away.It ________ me.A.is belonged toB.belongs toC.was belonged toD.is belonging to26.Is this the third time that you ________ late?27.— Do you know when Tom ________ from abroad?—Perhaps it will be a long time before he ________.A.will come; will come B es; will comeC.will come; comes D es; comes28.My uncle said that he would telephone but I ________ from him so far.’ t hear B.hadn ’ t heardC.haven ’ t heardD.won ’ t hear29.The telephone ________ four times in the last hour， and each time it ________ for my roommate.A.has rung; wasB.has been ringing; isC.had rung; wasD.rang; has been30.A storm ________ by a calm.A.is often being followedB.was often followedC.is often followedD.has often been followed31.The pen I ________ I ________ is on my desk ， right under my nose.A.think; lostB.thought; had lostC.think; had lostD.thought; lost32.— We could have walked to the station.It was so near.—Yes， a taxi ________ at all necessary.A.wasn ’tB.hadn ’ t been33.A friend of mine returned to his house after a holiday only to find it ________.A.to be brokenB.had broken intoC.was brokenD.had been broken into34.They believed that by using computers the production of their factory ________.A.will greatly increaseB.would greatly increaseC.would be increased greatlyD.will have been greatly increased35.His eyes shone brightly when he finally received the magazines he ________.A.had long been expectedB.had long expectedC.has long expectedD.was long expected36.— Do you like the new pen?—Yes， it ________ very well.A.is writtenB.is writing37.— Oh， it ’ s you? I didn’ t recognize you.—I ________ my hair cut ， and I ________ new glass.A.had; was wearingB.have had; am wearingC.had; woreD.have had; wear38.As she ________ the newspaper， Granny ________ asleep.39.However hard you ________ ，you will never succeed in pleasing her.B.will tryC.should tryD.would try40.— Can I help you ， sir?—Yes， I bought this radio yesterday ， but it ________.C.can ’ t workD.doesn ’ t work41.— How are you today?—Oh ，I ________ as ill as I do now for a very long time.A.didn ’ t feelB.wasn ’ t feelingC.don ’ t feelD.haven ’ t felt42.When Jack arrived he learned Mary ________ for about an hour.A.had goneB.had set offC.had leftD.had been away43.By this time tomorrow we ________ the machine.A.have repairedB.shall have repairedC.will repairD.would repair44.I don’ t think Jim saw，mehe ________ into space.A.just staredB.was just staringC.has just staredD.had just stared45.Helen ________ her key in the office so she had to wait until her husband ________ home.A.had left; cameB.has left; comesC.left; had comeD.had left; would come46.— You have left the light on.—Oh ，so I have.________ and turn it off.A.I ’ ll go’ ve goneC.I goD.I ’ m going47.This is Ted’ s photo.We miss him a lot.He ________ trying to save a child in earthquake.B.is killedC.was killedD.was killing48.The notice ________“ No smoking. 〞A.is wroteD.is read49.Good care must ________ babies particularly while they are ill.B.take ofC.be takenD.be taken of50.Shortly after we ________ ， a waiter came over to our table with a smile.B.were seatedC.sat ourselvesD.had seated51.— You look pale ，what troubled you?—I ________ my dead friend.A.am thinking aboutB.was thinking aboutC.had thought aboutD.will think about52.John and I ________ friends for eight years.We first got to know each other at a Christmas party.But we ________ each other a couple of times before that.A.had been; have seenB.have been; have seenC.have been; had seenD.had been; had seen53.Do make sure that you ________ a seat today!D.have get54.We ________ at the house as we ________ of buying it.A.looked; were thinkingB.were looking; were thinkingC.were looking; thoughtD.looked; had thought55.— I ’ m told that you are leaving for Beijing.—Who ________ so?B.had saidD.has said56.I ________ the room to be empty but found it occupied.A.had thoughtB.have thoughtC.didn ’ t thinkD.was thinking57.Selecting a mobile phone for personal use is no easy task because technology ________ so rapidly.A.will have changedB.has changedC.is changingD.will change58.I ________ ping-pong quite well ， but I haven’ t had time to play since the new year.A.will playB.have played59.Visitors ________ not to touch the exhibits.A.will requestB.are requestedC.are requesting60.They ________ a snowstorm on their way home.A.caught inB.had caughtC.were caughtD.were caught in高考能力测试步步高英语基础训练 8 答案基础训练8 动词 (三 )动词时态和语态1～ 5 DADBD6~10 BBCAD11～ 15 ACDCB16~20 AAACA21～ 25 DCBAB26~30 ACCAC31～ 35 BADCC36~40 CBBAD41～ 45 DDBBA46~50 ACBDB51～ 55 BCBBC56~60 ACDBD【剖析】1.用过去时表达没能早说之意。

高考英语十六种时态及练习题1 一般现在时的用法1) 经常性或习惯性的动作，常与表示频率的时间状语连用.时间状语：every…，sometimes，at…，on SundayI leave home for school at 7 every morning.2）客观真理,客观存在，科学事实.The earth moves around the sun。

Shanghai lies in the east of China.3）现在时刻的状态、能力、性格、个性.Ann Wang writes good English but does not speak well。

2 一般过去时的用法1)在确定的过去时间里所发生的动作或存在的状态.时间状语有：yesterday, an hour ago, the other day，in 1982 yesterday morning （afternoon，evening…）last night （week, month，year…）, a moment ago ，a week ago，three years ago…just now，等。

Where did you go just now?2) 表示过去习惯性动作.特别是由would/ used to do表达的句型，本身表示的就是过去时。

例：The old man would sit on a bench in the quiet park and look at others for hours without doing anything or talking to anybody。

（老人过去常常坐在宁静的公园里的一条长椅上，看着其他的人，一坐就是数个小时，什么也不干，也不和任何人交谈。

)He used to visit his mother once a week.(他以前总是每周看望一次他的母亲.）3) 有时可代替一般现在时，表达一种婉转、客气、礼貌、商量的语气.情态动词could，would。