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1、高考英語語法精講與精練 ：第十章 情態(tài)動詞與虛擬語氣高考英語 第十章 情態(tài)動詞與虛擬語氣精講與精練一、情態(tài)動詞與虛擬語氣講前練：用所給單詞的適當形式填空Tom: Hi,Mr.Smith.1 you give me a hand?Mr.Smith: Of course. You 2 hesitate to ask me for help. Whats the matter with you?Tom: My mum is always complaining about my going back home late after school.Mr.Smith: What do you usual

2、ly do after school?Tom: I usually go to the playground to play basketball. But I know that I 3 go home first.Mr.Smith: Why dont you go home directly?Tom: My mother usually says,“Every student 4 do their homework first after school, and that is a rule for all of you students.”You see, if I 5 (do)my h

3、omework first now, I couldnt have a rest and relax. I am so tired.Mr.Smith:Both you and your mum are reasonable. As a mother, she believes that you 6 never work too hard, while you think you need some time to have a rest. Does your mother know what you think?Tom: No. Even if I 7 (tell)her before, sh

4、e wouldnt have understood it.Mr.Smith: I dont think you are right. I think you should tell your mother what you think and she would understand you. Besides, you had better not hide your feelings from your mother and you 8 as well learn to communicate with her.Tom: Thank you for your advice. It is hi

5、gh time I 9 (talk)with her.Mr.Smith: I 10 agree more.1、Can 2、neednt 3、should 4、shall 5、did 6、can 7、had told 8、might 9、talked 10、cant二、情態(tài)動詞考點精講：情態(tài)動詞考點1、?？嫉那閼B(tài)動詞類情態(tài)動詞含義用法例句推測must一定、肯定只用于肯定句Youre Toms good friend, so you must know what he likes best.can/could可能、也許用于否定句和問句，cant/couldnt表“不可能”It cant be Mr

6、 Li, for he has gone to America.may/might可能、也許用于肯定句和否定句，may not/might not表“可能不”Your mother may /might not know the truth.能力can/could能夠can只有現(xiàn)在和過去時Mary can speak three languages.be able to能夠be able to有更多的形式(如：will be able to, have been ble to )。當成功地完成某一具體動作時，不用could而用was/were able to。這時was/were able t

7、o 相當于managed to，表示經(jīng)過一番努力，終于能夠完成某事。He was able to go to the party yesterday evening in spite of the heavy rain許可can/could可以問句中用could/might更顯客氣和委婉?？隙ɑ卮鹨话阌胏an,顯得語氣肯定干脆。-Could I come to see you tomorrow?- Yes, you can. (No, Im afraid not. )may/might可以May I come in?必要must必須表主觀要求，注意must提起的一般疑問句的肯定回答和否定回答的

8、不同，見例句。-Must we hand in our exercise books today?- Yes, you must./ No, you dont have to / you neednt.have to不得不表客觀需求It is raining heavily,so we have to stay at home.ought to應(yīng)該與should用法同Yong people should show respect for the old.should應(yīng)該shouldnt/oughtnt to不應(yīng)該You are his father and ought to take care

9、 of him.其他need需要1）用作實義動詞后接to do2）用作情態(tài)動詞后接 do，只用于否定句和問句You dont need to do it yourself.dare敢She dare not go out alone at night.情態(tài)動詞+完成時態(tài)情態(tài)動詞含義例句must have done肯定做過/發(fā)生過It must have rained last night,for the ground is wet.cant/couldnt have done不可能做過某事Mr. Smith cant have gone to Beijing,for I saw him in

10、the library just now.may/might have done可能已經(jīng).You might have read about it in the paperscould have done本來可以.，本來能夠I could have arrived on time,but I was held up by the traffic jam.Should have done本應(yīng)該做.You should have finished the task yesterday.ought to have done本應(yīng)該做.neednt have done本沒有必要做某事但又做了I need

11、nt have bought so much wineonly five people came. 句型can not/never.too無論怎么.也不過分越.越好While crossing the street, you can never be too careful.Can not.enough情態(tài)動詞考點2、情態(tài)動詞后必須接動詞原形，在語法填空中，如果空格在主語和動詞原形之間，那么可能要填情態(tài)動詞。（也可能填do和will,shall的適當形式）例如：1.What is acceptable in one country 1be considered extremely rude i

12、n another. Key:may2.He had no time or energy to play with his children or talk with his wife, but he 2_ bring home a regular salary. Key:did考點對練1 單項填空【雖然許多地區(qū)不考此題型，但依舊是掌握知識的很好的訓練方式】1【2020天津卷單項填空】Jim says we _ stay in his house as long as we leave it clean and tidy .Amust Bcan Cneed DshouldKey: B【解析】考

13、查情態(tài)動詞。句意：吉姆說我們可以住在他的房子里，只要我們保持它干凈整潔。A. must必須；B. can能，可以；C. need需要；D. should應(yīng)該。根據(jù)后面的“as long as we leave it clean and tidy”可知，Jim許可我們待在他的房子里，即:我們”能，可以”待在他的房子里。故選B。2【2020天津卷單項填空】You _ have scolded him for his poor performance. After all, he had done his best.Amust Bshould Cmustnt DshouldntKey: D【解析】考

14、查情態(tài)動詞+ have done。句意：你本不應(yīng)該因為他表現(xiàn)不好而責罵他。畢竟，他已經(jīng)盡力了。根據(jù)前后句關(guān)系可知此處表示“本不該”是 shouldnt have done指做了本不該做的事，must have done表示對過去發(fā)生的事情的肯定性推測；should have done表示應(yīng)當做某事而實際上未做；mustnt不和have done連用。故選D。知識拓展：1）must have done表示對過去事情的肯定推測，指“一定做過某事”，該結(jié)構(gòu)只用于肯定句：EG1. It must have rained last night, for the ground is wet.昨晚一定下雨了

15、，因為地面還是濕的。EG2. You must have been mad to speak to the servant.你和仆人說話，一定是發(fā)瘋了。2）should have done意思是“本來應(yīng)該做某事，而實際沒做?！?）shouldnt have done表示本來不應(yīng)該做某事,而實際做了。含有指責對方或自責的含意.EG3.Tom, you are too lazy. The work should have been finished yesterday.湯姆,你太懶惰了,這項工作本來應(yīng)該昨天就做完的。EG4.Look, Tom is crying. I shouldnt have

16、been so harsh on him.看，湯姆哭了，我本來不應(yīng)該對他如此嚴厲。3.【2018北京】In todays information age, the loss of data _ cause serious problems for a company.A. need B. should C. can D. mustKey:C【解析】考查情態(tài)動詞。句意：在今天的信息時代，數(shù)據(jù)的丟失有時會對一個公司造成嚴重的問題。數(shù)據(jù)丟失造成嚴重問題是客觀上會發(fā)生的情況，即“客觀可能性”，故該空應(yīng)用情態(tài)動詞can。C選項正確。其余情態(tài)動詞均沒有該用法。need需要；should應(yīng)該，竟然；must

17、必須，肯定。知識拓展：can的基本用法：1）(表示能力、功能)能，會；2）(表示推測)可能，可能會；3）（表示允許，請求）可以；4）（表示客觀可能性）有時會。4.【2017北京卷】Samuel, the tallest boy in our class, _ easily reach the books on the top shelf.A. must B. should C. can D. needKey: C【解析】：考查情態(tài)動詞A. must 必須；B. should應(yīng)該；C. can能；D. need需要。句意：Samuel，我們班最高的男生，能很輕松地夠著書架頂上的書。此處需要一個表

18、示能力的詞，故用can，答案為C。三、虛擬語氣考點精講：虛擬語氣考點1、非真實條件句中的虛擬語氣類別用法例句If引導的條件從句與現(xiàn)在事實相反從句動詞：過去式（be用were）主句動詞：should/would/could/might+doIf he were here, he would help us.與過去事實相反從句動詞：had+done主句動詞：should/would/could/might+have+doneIf I had been free,I would have visited you.與將來事實相反從句動詞：過去式/should+do/wereto +do主句動詞：sho

19、uld/would/could/might+doIf it should rain tomorrow, we would not go camping.省略if的虛擬條件句將虛擬條件從句中的were，had, should放到主語之前，構(gòu)成主謂倒裝Should he come ,tell him to ring me up.Were I you,I would not do it.Had I been free,I would have visited you.錯綜虛擬語氣條件從句與主句表達的時間不一致If I had followed your advice, I would be in c

20、ollege now.虛擬語氣考點2、表命令、要求、建議的詞后的賓語從句，表語從句和同位語從句的虛擬語氣。動詞insist, order, command, advise, suggest,propose,recommend, desire, demand, require, request, urge后接的賓語從句以及他們相應(yīng)的名詞后的表語從句和同位語從句中動詞為should+do。（should可以省略）（記憶口訣：一個堅持，兩個命令，四個建議，五個要求）EG1：He suggested that we （should）not change our mind.虛擬語氣考點3、其他從句中的虛

21、擬語氣1、wish后的從句中分別用過去式，過去完成式和would/could/might+do表示與現(xiàn)在，過去和將來情況相反 EG1: I wish I had gone to Shanghai last month.2、句型It is time that句型中動詞用過去式或should+do EG2: Its high time that we left/should leave.3、would rather（寧愿）所接的從句中動詞用過去式或者過去完成式 EG3: I would rather you stayed at home now.4、If only（要是.該多好）句型中動詞常用過去

22、式或者過去完成式，表示強烈的愿望 EG4: If only our dream had come true! （與條件句中的虛擬語氣用法一樣）考點對練2：1. 【2020江蘇卷單項填空】If I hadnt been faced with so many barriers, I _where I am.A. wont beB. wouldnt have been C. wouldnt be D. shouldnt have beenKey: C【解析】考查虛擬語氣。句意：如果我沒有面對那么多的障礙，我現(xiàn)在就不會在這里。分析句子成分可知，此處是錯綜時間虛擬語氣，根據(jù)空后where I am可知，

23、此處是與現(xiàn)在事實相反的假設(shè)，主句謂語動詞應(yīng)使用would/could/might/should+do。故選C。2.【2019天津卷單項填空】The workers were not better organized, otherwise they _ the task in half the time.A. accomplished B. had accomplishedC. would accomplish D. would have accomplishedKey: D【解析】考查虛擬語氣。句意：工人們沒有被更好的組織起來，否則他們用一半的時間就能完成任務(wù)。根據(jù)上句the workers

24、were not better organized可知，這是對過去事情的虛擬。與過去事實相反的假設(shè)。其句子結(jié)構(gòu)為：從句：If+主語+過去完成時+其他，主句：主語+should(would, could, might)+現(xiàn)在完成時+其他，故選D。3.【2018江蘇】Its strange that he _have taken the books without the owners permission.A. would B. shouldC. could D. mightKey :B【解析】考查虛擬語氣。句意：真奇怪，他竟然沒有主人的允許就拿走了這些書。在句型”It is important

25、/necessary/strange/impossible/natural that.”中，其中由that引導的主語從句通常用“should+動詞原形”這樣的虛擬語氣，其中的should可以省略。故選B。4.【2018江蘇】There is a good social life in the village, and I wish I _ a second chance to become more involved.A. had B. will haveC. would have had D. have hadKey: A【解析】考查虛擬語氣。句意：在村里有很好的社交生活，并且我希望我再有機

26、會去更多的參與。本題考查wish引導的賓語從句，表示與現(xiàn)在事實相反的愿望，所以從句用一般過去時。故選A。知識拓展：由wish引起的表示愿望的虛擬語氣：1）用wish表示對現(xiàn)在的愿望時，它所引起的賓語從句中謂語動詞形式為：過去式（be動詞用were）。2）用wish表示對將來的愿望時，它所引起的賓語從句中謂語動詞形式為：would, could, might+ 動詞原形。3）wish用于對過去的事實表示一種不可能實現(xiàn)的愿望時，賓語從句中的謂語動詞形式為：had+動詞過去分詞或could, would + have +動詞過去分詞。5.【2018天津】15. If we _the flight y

27、esterday, we would be enjoying our holiday on the beachA. had caught B. caughtC. have caught D. would catchKey: A【解析】考查虛擬語氣。句意：如果我們昨天趕上飛機的話，現(xiàn)在我們正在海灘享受我們的假日了。根據(jù)時間狀語yesterday可知，從句表示與過去事實相反，故用had + v-ed。故選A。四、情態(tài)動詞與虛擬語氣應(yīng)考技巧：1、情態(tài)動詞與虛擬語氣在全國卷中不是考查的重點，但偶爾也會考到，如填空題中填情態(tài)動詞can,should,may等詞，考含有虛擬語氣的句子中用所給動詞的適當形式

28、填空。2、在語法改錯題中，情態(tài)動詞后接動詞原形是考查的重點，含虛擬語氣的句子中的動詞形式的錯誤也時有考到。EG1：(2016全國，短文改錯)We can chose between staying at home and taking a trip.Key:chose-chooseEG2:(2016全國，短文改錯)Some classmates suggest we can go to places of interest nearby.Key:can-should或劃掉can3.在聽力和閱讀中，要注意情態(tài)動詞尤其是情態(tài)動詞+have done和虛擬語氣對文章理解的影響。EG3：看下面聽力中的

29、對話：A.Oh, dear. I wish we had taken the lift.B.If I had known it was so far up, I wouldnt have suggested walking.What are the two speakers doing?A.Walking down a hill.B.Climbing stairs.C.Discussing a trip.解析：解這道題，不僅要聽懂，而且要理解好兩句虛擬語氣的句子。I wish we had taken the lift.意為“我希望我們乘坐了電梯”，言外之意是我們現(xiàn)在沒有坐電梯；第二句虛擬語氣

30、“If I had known it was so far up, I wouldnt have suggested walking.”意為“如果我知道上來有這么遠，我就不會建議走路了”，言外之意是現(xiàn)在他們現(xiàn)在在爬樓梯，沒有坐電梯。五、情態(tài)動詞與虛擬語氣考點精練(一)單句語法填空(真題改編)：在空格處填上適當?shù)脑~或用所給詞的適當形式填空。1.【2021.3 天津卷單選改編】It used to be that you drive for miles here without seeing another person, but now there are houses and people e

31、verywhere.Key:could【解析】考查情態(tài)動詞辨析。句意：以前你可以開車到這里走好幾英里，而看不到別的人，但現(xiàn)在到處都是房子和人。空格前面是主語后面是動詞原形所以應(yīng)該填情態(tài)動詞，有根據(jù)句意本空應(yīng)填could。2.【2019江蘇卷單項填空改編】What a pity! You missed the sightseeing, or we _（have）a good time together.Key :would have had【解析】考查虛擬語氣。句意：真遺憾！你錯過了這次觀光，否則，我們本應(yīng)該在一起度過一段愉快時光的。根據(jù)上文，可知是對過去事情的虛擬，與過去事實相反的假設(shè)。其句子

32、結(jié)構(gòu)為：從句：If+主語+過去完成時+其他，主句：主語+should(would, could, might)+現(xiàn)在完成時+其他，所以填would have had3.【2018天津改編】10. I cant find my purse. I_（leave）it in the supermarket yesterday, but Im not sure.Key: could have left【解析】考查情態(tài)動詞表推測和虛擬語氣。句意：我不能找到我的錢包了，昨天我有可能把它落到超市了，但我不確定。根據(jù)句中時間狀語yesterday可知，是對過去事情的推測，故用情態(tài)動詞+ have done，再

33、根據(jù)后句but Im not sure.可知，此推測為不能肯定的推測，故用情態(tài)動詞could have left ，表示“可能把它忘記在超市了”。故選D。4.【2018北京改編】They might have found a better hotel if they _（drive）a few more kilometers.Key:had driven【解析】考查虛擬語氣。句意：如果他們多開幾公里的話，他們也許會找到一個更好的旅館。由“they might have found a better hotel”可知，該句是表示對過去的虛擬。if _ a few more kilometers是

34、條件句部分，表示對過去的虛擬，條件句部分要用過去完成時態(tài)，故填had driven5.【2017北京卷改編】If the new safety system _ to use, the accident would never have happened.Key: had been put 【解析】考查虛擬語氣。句意：如果這個新的安全系統(tǒng)被投入使用過的話，這個事故就不會發(fā)生了。根據(jù)主句確定是對過去情況的虛擬，所以從句謂語用had done形式，此外根據(jù)句意可知是被動，用被動語態(tài)，故填had been put。6.【2016全國，閱讀A改編】When Sandra Day OConnor fin

35、ished third in her class at Stanford Law School in 1952, she _not find work at a law firm because she was a woman.Key:could7.【2014湖南，25改編】Ive prepared all kinds of food for the picnic.Do you mean we_ (not)bring anything with us? Key:neednt8.【2014北京，27改編】_ I have a word with you? It wont take long. K

36、ey: can9【2016北京，31改編】I love the weekend, because I_get up early on Saturdays and Sundays.Key:neednt10【2016浙江，17改編】George _(go) too far .His coffee is still warm.Key:cant have gone11【2015北京，29改編】Cant you stay a little longer?Its getting late.I really _ go now.My daughter is home alone.Key:must12【2015

37、重慶，12改編】You _ be Carol.You havent changed a bit after all these years.Key:must13【2015陜西，21改編】You _feel all the training a waste of time，but Im a hundred percent sure later youll be grateful you did it.Key:may14【2015福建，27改編】Sorry, Mum! I failed the job interview again.Oh, its too bad.You _ have made

38、full preparations. Key:should/ought to15【2015天津，7改編】I _have worried before I came to the new school, for my classmates here are very friendly to me.Key:neednt16【2015北京，34改編】If I _(not see)it with my own eyes, I wouldnt have believed it.Key:hadnt seen17【2015重慶，7改編】Without his wartime experiences, Hem

39、ingway _(write)his famous novel AFarewelltoArms.Key:wouldnt have written18【2015陜西，23改編】Ellen is a fantastic dancer.I wish I _(dance)as well as her.Key:danced19.【2015天津，13改編】I wish I _(be)at my sisters wedding last Tuesday, but I was on a business trip in New York then.Key:had been20.【2015安徽，32改編】It

40、is lucky we booked a room, or we _(have)nowhere to stay now.Key:would have21.【2014湖南，22改編】If Mr.Dewey_(be) present，he would have offered any possible assistance to the people there.Key:had been22.【2014陜西，23改編】We would rather our daughter_(stay) at home with us，but it is her choice，and she is not a c

41、hild any longer.Key:stayed23.It is high time we _ (get) down to discuss this plan.Key:got/should get24.I insisted he _(go) to see a doctor, but he insisted nothing _ (be) wrong with him.Key:(should) go/was25.Her pale face suggested that she _ (be) ill, and her colleagues suggested that she _(have) a

42、 medical examination. Key: was/(should) have(二)單句語法改錯1.【2018全國II】As a kid, I loved to watch cartoons, but no matter how many times I asked to watch them, my parents would not to let me.Key:劃掉to 考查情態(tài)動詞。would后跟動詞原形，故把to刪除。2.【2018江蘇改編】Its strange that he would have taken the books without the ownersper

43、mission. Key:wouldshould3.【2018江蘇改編】27. There is a good social life in the village, and I wish I have a second chance to become more involved. key : havehad4.【2018天津改編】10. I cant find my purse. I should have left it in the supermarket yesterday, but Im not sure. Key: shouldcould5.【2018北京改編】13. They

44、might have found a better hotel if they have driven a few more kilometers. Key:havehad(二)情態(tài)動詞與虛擬語氣語篇填空訓練I am a middle school student.I have many dreams.If there 1_(be) not so much homework, I would have more time to do what I like to do.How I wish I 2_(listen) to my favorite music for an hour a day

45、and 3_(play) table tennis for an hour in the morning！Its my desire that we 4_(hold) evening parties or 5_(organize) some interesting activities at weekends.I suggest that there 6_(notbe)so many tests.You can imagine what life 7_ (will) be if I 8_(realize) my dream.But I must face the exams.Without good marks, I 9_(will) not enter my ideal university.Anyway, its high time that I 10_(encourage) myself and worked hard from now on.Keys:1.were 2.listened 3.played 4.(should)hold 5.(should)organize 6.(should)be 7.would 8.realized/should realize/were to realize 9.would 10.encouraged /should encourage