2018年高考题
1.【2018·江苏】24. It’s strange that he _______
have taken the books without the owner’s permission.
A. would
B. should
C. could
D. might
【答案】B
点睛：本题考查虚拟语气。It is important/necessary/strange/impossible/natural that... 主语从句多数情况下用虚拟语气，表达一种要求、命令或者责备、建议或主观看法。但是如果只是表示陈述一个事实而不是强烈的感情，完全可以用一般的陈述语气。试比较： It is strange that he had made a mistake.（陈述一个事实：他犯了错误让人有点奇怪。） It is strange that he (should) have made a mistake. （虚拟语气，说话者是在责备他本不应该犯错。）
2.【2018·江苏】27. There is a good social life in the village, and I wish I _______ a second chance to become more involved.
A. had
B. will have
C. would have had
D. have had
【答案】A
【解析】考查虚拟语气。句意：在这个村里有很好的社交生活，并且我希望我再有机会去更多的参与。本题考查wish引导的宾语从句，表示与现在事实相反的愿望，所以从句用一般过去时。故选A。
点睛：本题考查wish引导的虚拟语气。由wish引起的表示愿望的虚拟语气：1．用wish表示对现在的愿望时，它所引起的宾语从句中谓语动词形式为：过去式（be动词用were）。2．用wish表示对将来的愿望时，它所引起的宾语从句中谓语动词形式为：would, could, might+ 动词原形。3．wish用于对过去的事实表示一种不可能实现的愿望时，宾语从句中的谓语动词形式为：had+动词过去分词或could, would + have +动词过去分词。分析此题需抓住前句There is a good social life in the village的时态是一般现在
时，可以判断出此题wish用于对现在的事实表示一种不可能实现的愿望。
3.【2018·天津】10. I can't find my purse. I___________ it in the supermarket yesterday, but I'm not sure.
A. should leave
B. must have left
C. might leave
D. could have left
【答案】D
点睛：情态动词是每年高考的热点也是难点。本题抓住两点：第一、时态。根据句中时间状语可以判断出是对过去事情的推测，故用情态动词 + have done；如果是对现在事情的推测，才用情态动词+v原形。第二、情态动词的选择。must为肯定推测，表示“一定”，could为不肯定推测，表示“可能”，这样就能选出正确答案。
4.【2018·北京】12. In today’s information age, the loss of data _________ cause serious problems for a company.
A. need
B. should
C. can
D. must
【答案】C
【解析】考查情态动词。句意：在今天的信息时代，数据的丢失有时会对一个公司造成严重的问题。数据丢失造成严重问题是客观上会发生的情况，即“客观可能性”，故该空应用情态动词can。C选项正确。其余情态动词均没有该用法。need需要；should应该，竟然；must必须，肯定。
点睛：can的基本用法：1. (表示能力、功能)能，会；2. (表示推测)可能，可能会；3.（表示允许，请求）可以；4.（表示客观可能性）有时会。
5.【2018·北京】13. They might have found a better hotel if they _________ a few more kilometers.
A. drove
B. would drive
C. were to drive
D. had driven
【答案】D
【解析】考查虚拟语气。句意：如果他们多开几公里的话，他们也许会找到一个更好的旅馆。由“they might have found a better hotel”可知，该句是表示对过去的虚拟。if ____ a few more kilometers是条件
情态动词与虚拟语气 (1)情态动词的基本用法：①can与be able to的区别；②must与have to的区别；③shall的用法；④should的用法；⑤used to与would的用法；⑥may与might 的用法；⑦need与dare的用法； (2)情态动词表推测：①对现在和将来情况的推测；②对过去情况的推测； (3)虚拟语气的用法：①条件从句及含蓄条件引出的虚拟语气(but for, without, otherwise等)；②wish后跟宾语从句中的虚拟语气；③if only, as if/though, would rather, It's high time后跟从句中的虚拟语气；④表示“建议，要求，命令，坚持”等词后跟从句中的虚拟语气。 注意几个考点： must“非得，偏要”, 用于疑问句或条件从句中； shall用于第二、三人称表示警告、命令、威胁、允诺、规定等； should“竟然” cannot...too/enough表示“无论……也不过分”；“越……越好” May you succeed！祝你成功！ may/might as well＋动词原形”意为“最好，倒不如” must强调主观方面的必须否定形式是needn't/don't have to have to表示“不得不，必须”，强调客观因素所迫而必须去做的事情 would可以表示过去的习惯性动作，比used to正式，但没有“现已无此习惯”的含义 ※shall的用法 (1)用于第一、第三人称疑问句中，表示说话人征求对方的意见或向对方请示。 Shall I go out for a walk after supper? 晚饭后我可以散散步吗？ (2)用于第二、第三人称陈述句中，表示说话人给对方的命令、警告、允诺或威胁，或用于正式法律、条规中。 —Will you read me a story, Mummy? —OK. You shall have one if you go to bed as soon as possible.[摘自2011·陕西高考] ——妈妈，给我讲个故事好吗？ ——好的，如果你尽快上床睡觉我就给你讲一个。 ※should的用法 (1)表示一种“义务或职责”，通常理解为“应该”。 You should take the medicine with a full glass of water. 你应该用满满一杯水来服这种药。 (2)表示惊奇、赞叹、不满等情绪。 It never occurred to me that she should lie to me again. 我从来没有想到她竟然又骗我。
情态动词与虚拟语气 【语法要点】 情态动词 所谓情态动词是指它含有一定的含义，可以表达某种感情和说话的语气，但是它不可以单独使用作谓语动词。学习情态动词主要学习英语国家的语言习惯和表达法，特别是在口语中不要过分追求原理，更不要不根据说话场合而进行推理，编造出一些语法结构正确的中文式英语。 一、情态动词的类型 1.只作情态动词的有：must、can、could、may、might、ought to 2.既可作情态动词又可作实义动词的有：need、dare 3.既可作情态动词又可作助动词的有：shall、should、will、would 二、情态动词的特征 1.表示说话人的情感态度，不能单独作谓语，与行为动词或连系动词一起作谓语。 2.情态动词没有人称和数的变化，后接动词原形。 3.具有助动词的特征：可用来构成否定句、疑问句或简短答语。 三、情态动词的用法 1.表示能力 （1）表示现在的能力，用can或be able to。表示一般的能力时多用can，表示“经过努力成功的做成某事”用be able to。 （2）表示过去的能力，用could或was/were be able to。区别同上。 （3）表示将来的能力，用will be able to。 2.表示推测、可能性 （1）can用在肯定句中表示客观的可能性，而不表示具体事情实际发生的可能性。 例如：Accidents can happy on such rainy days. （2）表示具体事情实际发生的可能性的情态动词，其表示可能性的层次如下表： 情态动词肯定式否定式疑问式 must 必定、必然、一定 will 很可能、大概不会、不该会……吗？ would 可能性较will小不会、不该（较won’t弱）会……吗？（较will弱） should 应该会、理应（表示合乎理想的情况或结果） ought to 与should同义 can 一定不会、不可能（否定推测）有可能吗？ could 可疑的可能不可能（与can’t同义）有可能吗？（较can弱）may 或许、可能、说不定可能不 might 或许、可能（较may弱）可能不（较may not弱） 注意→（1）may，must常用于肯定句，一般不用于否定句和疑问句。 （2）can常用于否定句，疑问句和感叹句中，表示疑惑、惊讶或不相信等意思。could既可用于肯定句，又可用于否定句、疑问句中。
高中英语虚拟语气知识 点及练习 内部编号：（YUUT-TBBY-MMUT-URRUY-UOOY-DBUYI-0128）
虚拟语气：虚拟证据表示说的话不是事实，或者不可能发生的情况，而是一种愿望、建议或者与事实相反的假设等，一般常用于正式的书面语中。 一、虚拟语气在if条件从句中的用法： 1、a. If I were you, I would apply for the job. b. If I lived near my office, I would walk to the office. 与现在事实相反，If条件从句谓语：过去式（be用were） 主句谓语：should / would / could / might+动词原形 2、a. If you had been more careful, You could have passed the exam. b. If you had turned off the gas, the house wouldn’t have caught fire. 与过去事实相反，If条件从句谓语：had+动词过去分词 主句谓语：should / would / could / might + have done 3、a. If it should rain tomorrow, we would not go camping. b. if it were to rain tomorrow, we would not go camping. c. If it rained tomorrow, we would not go camping. 与将来事实相反：If条件从句谓语：过去式 / should + v原形 / were + to do 主句谓语：should / would / could / might + do 二、混合虚拟条件句：不同时间的虚拟，各遵守各的规则，如： a. If you had followed the doctor’s advice, you would be quite all right now. 从句叙述与过去事实相反（had + done），主句叙述与现在事实相反（would + v）
情态动词与虚拟语气 常考考点一情态动词+have done 情态动词+have done 表示对过去的虚拟
1.I have watched that movie it’ll give me horrible dreams. A.Shouldn’t ’t ’t ’t 2.Mark have hurried. After driving at top speed, he arrived half an hour early. ’t ’t ’t ’t , Professor Smith. I didn’t finish the assignment yesterday. -----Oh, you have done it as yesterday was the deadline. 、 ’t ’t
have been Tom that parked the car here, as he is the only one with a car. 5. He didn’t regret saying what he did but felt that he it differently. express B. would express have expressed have expressed 6. -----I’m sorry. I at you the other day. ------Forget it, I was a bit out of control myself. ’t shout ’t have shouted is my dictionary I remember I put it here yesterday. # -------You it in the wrong place. A.must put B. should have put put have put 8. The weather turned out to be fine yesterday, I the trouble to carry my umbrella with me. have taken have taken ’t have taken D. mustn’t have taken 9. As you worked late yesterday, you have come this morning. ’t ’t ’t ’t did you do on the driving test ---------Not so well. I much better, but I was too nervous. do have done ’t have done D. should do
高考英语虚拟语气专项练习 1. I wish you __________ him my telephone number，but you did. A. didn’t give B. hadn’t given C. wouldn’t give D. shouldn’t give 2. —Where are the children? The dinner’s going to be completely ruined. — I wish they ________ always late. A. weren’t B. hadn’t been C. wouldn’t be D. wouldn’t have been 3. We wish we ____ what you did when we were at high school. A. did B. could have done C. have done D. should do 4. Tom is very short now. His mother wishes that he ________ be tall when he grows up. A. could B. should C. would D. were able to 5. The man in prison insisted that he ______ nothing wrong and _________set free. A. had done, should be B. should do, should be C. had done, had been D. should do, had been 6. The patient insisted that he ___B______ ill and _________ to the hospital. A. wasn’t, wasn’t sent B. wasn’t, shouldn’t be sent C. shouldn’t be, wasn’t sent D. shouldn’t be, shouldn’t be sent 7. My sister advised me that I ________ accept the invitation. A. could B. must C. should D. might 8. He asks that he ________ an opportunity to explain why he's refused to go there. A. is given B. must give C. should give D. be given 9. I insisted that he ________ at once. A. be gone B. go C. would go D. might go 10. Li Ming insisted that he ________ anything at all. A. hadn ' t stolen B. shouldn ' t steal C. doesn ' t steal D. steal 11. Our monitor requested that ________. A. all the class studied more carefully the problem B. the problem was more carefully studied C. with great care the problem could be studied D. all the class study the problem more carefully 12. It was John who broke the window. Why are you talking to me as if I _____ it? A. had done B. have done C. did D. am doing 13. He acted as if he ________ everything in the world. A. knew B. knows C. has known D. won't know 14. Read it aloud so that I ________ you clearly. A. may hear B. will hear C. hear D. have heard 15. They got up early in order that they ________ they first train.
专题六情态动词和虚拟语气 1.【2015·北京】29．—Can’t you stay a little longer? —It’s getting late. I really _____go now, My daughter is home alone. A .may B .can C . must D .dare 【答案】C 【解析】 试题分析：句意：——你不能再多待会儿吗?——很晚了，我必须得走了.我女儿一个人在家.A. may可能，可以，也许；B. can能，会；C. must必须，必然要，必定会；D. dare敢，胆敢.结合句意，故选C. 【考点定位】考查情态动词辨析 【名师点睛】本题是考查情态动词，这里考查的是语气的强度，在这里结合语境是“一定”的意思，所以要做好此类辨析题需掌握情态动词选项的语气并结合语境. 2.【2015·北京】34. If I _____it with my own eyes ,I wouldn’t have believed it. A . didn’t see B. weren’t seeing C. wouldn’t see D. hadn’t seen 【答案】D 【解析】 试题分析：句意：如果不是我亲眼看到，我不会相信.根据后半句wouldn’t have believed 可以判断是对过去的虚拟.所以从句是if+主语+ had+done的形式.故选D. 【考点定位】虚拟语气 【名师点睛】条件句中有if引导时,首先要根据句意和句子结构判断是真实条件句还是虚拟条件句,如果符合虚拟的结构,就可以根据句子中的时间和语意判断应该用哪种虚拟语气. 3.【2015·重庆】7. Without his wartime experiences, Hemingway____ his famous novel A Farewell to Arms. A.d idn’t write B. hadn’t written C. wouldn’t write D. wouldn’t have written 【答案】D 【解析】 试题分析：句意：没有他战时的经验，海明威就不可能写出著名的小说永别了武器.根据without his wartime experience没有战时的经历，可知表示对于过去的否定猜测，故主句
@ 情态动词和虚拟语气 1. Jack descried his father, who ________a brave boy many years ago, as a strong-wiled man A. would be B. would have been C. must be D. must have been ） 2. —Good morning. I've got an appointment with Miss Smith in the Personnel Department. —Ah, good morning. You _______ be Mrs. Peters. A. might B. must C. would D. can recommend parents _______ their children under 12 to ride bicycles to school for safety. ~ A. not allow B. do not allow C. mustn’t allow D. couldn’t allow 4. You_______ buy a gift, but you can if you want to. A. must B. mustn't C. have to D. don't have to 5. —I haven’t got the reference book yet, but I’ll have a test on the subject next month. —Don’t worry. You________ have it by Friday. A. could B. shall C. must D. may w_w w. k#s 6. I have told you the truth I keep repeating it A. Must B. Can C. May D. Will ~ 7. Doctors say that exercise is important for health, but it _______ be regular exercise. A. can B. will C. must D. may 8. Just be patient. You ________ expect the world to change so soon. A. can’t B. needn’t C. may not D. will not 9. I’m afraid Mr. Harding ________ see you now. He’s busy. A. can’t B. mustn’t C. shouldn’t D. needn’t 10. I _______ have watched that movie—it’ll give me horrible dreams. A. shouldn’t B. needn’t C. couldn’t D. mustn’t < 11. –May I take this book out of the reading room –No, you . You read it in here. A. mightn’t B. won’t C. needn’t D. mustn’t 12. —Sorry, Professor Smith. I didn't finish the assignment yesterday. — Oh, you _________ have done it as yesterday was the deadline. A. must B. mustn't C. should D. shouldn't 13. — _______ I take the book out —I'm afraid not. *
语言结构之虚拟语气（学生版） 用所给动词的正确形式填空，注意使用合适的情态动词助动词 1. If I _____ him yesterday I _____ him about it. (see, ask) 2. What do you think would happen if there __ _ no light during the days? (be) 3. But for your help, I couldn’t _____ the place. (find) 4. If her lawyer _____ here last Sunday, he _____ her from going. (be, prevent) 5. If it had not been for the liberation, no changes _____ place in my hometown. (take) 6. If Miss Green _____ late tomorrow, who would take her place? (come) 7. It seems as if it ____ already summer now. (be) 8. I wish I _____ him the day before yesterday. (see) 9. I made the suggestion that they _____ the plan they had made. (stick) 10. It is suggested that a study plan _____ right now. (make) 11. They required that we _____ them get in the crops. (help) 12. It was ordered that no smoking _____ in the library, which made the smokers unhappy. (allow) 13.I’d rather Tom _____ tomorrow. (come) 14.It is about time you ____ the medicine, sir. (take) 15.If there _____ no electricity in the future, our life _____ a lot. (be, change) 16. What would have happened if you her child? (not help) 17. It is strange that he so. (think) 18. I wish I my uncle yesterday. (meet) 19. Galileo insisted that the earth round the sun. (move) 20. I was very busy yesterday, otherwise I to the meeting. (come) 21. Supposing the weather bad, where would they go? (be) 22. If only I to my parents’ advice! (listen) 23. I to stay there for one more week, but I changed my mind. (hope) 24. His silence at the meeting suggested that he to your plan. (agree) 25. Li Ling acted that way as though he a foreigner. (be)
百度文库版权所有，侵权必究 【11年高考】2004-2014年全国各地高考英语试题分类汇编：情态动词、虚拟语气 2014全国高考汇编之虚拟语气+情态动词 一（2014安徽卷）30．People are recycling many things which they away in the past. A. had thrown B. will be throwing C. were throwing D. would have thrown 【考点】考察情态动词用法 【答案】D 【解析】句义：人们作者回收利用他们过去常常会扔掉的东西。Would have done过去常常做某事；是对过去发生的事情的推测。如果不适应情态动词，可以使用一般过去时threw。故D正确。 【举一反三】I ______ sooner but I didn’t know that they were waiting for me. A. had come B. was coming C. would come D. would have come 【答案】D 【考点】考查虚拟语气的用法。 【解析】句意为“我本来可以早点来，但我真不知道他们在等我。”but I didn’t know表示了过去时间，因此前句是对过去的虚拟，用主语+should / would / could / might + have done表达，故选D。 二（2014北京卷）27. ________ I have a word with you? It won’t take long. A. Can B. Must C. Shall D. Should 【考点】考察情态动词词义辨析 【答案】A 【解析】本题考察的是情态动词基本意义辨析。Can能够，可能；must必须，一定；非得；shall将要；should应该；句意：我可以和你谈谈吗？不会花很多时间的。根据句意可知本题使用can I…？表示询问对方是否允许。如：Can I use your dictionary?我可以使用你的字典吗？故A正确。 三（2014北京卷）34. We __________ back in the hotel now if you didn’t lose the map. A. are B. were C. will be D. would be 【考点】考察虚拟语气 【答案】D 【解析】本题考察的是if条件状语从句的虚拟语气。表示与现在事实相反时，条件句中使用“一般过去时/were”，主句使用“情态动词+动词原形”。句意：如果你没有把地图丢了，我们现在就会在宾馆里了。根据从句的did可知本句是与现在事实相反，故D正确。 【试题延伸】条件句的虚拟语气是考查的重点。如果过去事实相反，条件句中使用过去完成时，主句使用“情态动词+have done”;如果主句与现在事实相反，条件句中使用过去时，be动词使用were,主句中使用“情态动词+动词原形”；如果与将来事实相反，条件句中有三种：过去时；were to do ;should+动词原形，主句使用“情态动词+动词原形”；要特别注意如果省略了if，句子要使用部分倒装的形式，把助动词，be动词，情态动词提之主语前。 【举一反三】Grace doesn't want to move to New York because she thinks if she there, she wouldn't be able to see her parents very often. A. lives B. would live C. having asked D. Were to live
高考英语虚拟语气知识点专项训练及答案 一、选择题 1．She wouldn’t have flown off the handle _____the fact that you didn’t intend to hurt her. A．were she to know B．had she known C．did she know D．should she have known 2．-You came second in the running race. Congratulations! -Thanks. But practising more, I _______ a different result. A．might get B．may get C．may have got D．might have got 3．You can download it and rewrite your report using your own words you acknowledge where you got your information by attaching a list of websites you got your information from. A．should B．may C．would D．could 4．Recent years have seen a growing increase in the emergence of cyber terms, without which our life _____ so colorful nowadays. A．won’t be B．hadn’t been C．wouldn’t be D．can’t be 5．With the help of the detective Sam, Justin was found, so Justin's mother insisted an amount of money as a reward. A．to give B．on his giving C．he was given D．he be given 6．—Where are the children? The dinner’s going to be complerely ruined. —I wish they always late. A．weren’t B．hadn’t been C．wouldn’t be D．wouldn’t have been 7．That was not the first time he ____ us. I think it's high time we ____ strong actions against him. A．betrayed, take B．had betrayed, took C．has betrayed, took D．has betrayed, take 8．It is recommended that the project ______ until all the preparations have been made. A．is not started B．will not be started C．not be started D．is not to be started 9．Studies show that historical barriers on women acceptance in organizational environments, the development of the company would already be way ahead. A．were it not for B．if there being no C．hadn't it been for D．if it is not for 10．--- Are you happy now? --- If only I _____ slimmer, more beautiful, richer, more clever. A．am B．were C．had been D．should be 11．What a pity! Considering his ability and experience, he ___________ it better. A．need have done B．must have done C．can have done D．might have done 12．_____, the student insisted that he _____ separated from his desk mate, who is very naughty. A．To avoid being affected; be B．To avoid to be affected; would be
1．(2016·新课标Ⅱ)Some classmates suggest we can go to places of interest nearby. 2．(2015·新课标Ⅰ)We must found ways to protect our environment. 3．(2015·四川)If you are me，would you talk to them? 1．(2016·浙江，15)________(have)the governments and scientists not worked together，AIDS-related deaths would not have fallen since their highest in 2005. 2．(2016·浙江，17)George can't ________(go)too far.His coffee is still warm. 3．(2016·北京，34)Why didn't you tell me about your trouble last week？If you ________(tell)me，I could have helped. 4．(2015·北京，29)—Can't you stay a little longer? —It's getting late.I really ________go now.My daughter is home alone. 5．(2015·福建，27)—Sorry，Mum！I failed the job interview again. —Oh，it's too bad.You ________have made full preparations. 6．(2015·陕西，23)Ellen is a fantastic dancer.I wish I ______(dance)as well as her. 7．(2015·天津，7)I ________ have worried before I came to the new school，for my classmates here are very friendly to me. 8．(2015·天津，13)I wish I ________(be)at my sister's wedding last Tuesday，but I was on a business trip in New York then. 9．(2015·重庆，12)You ________ be Carol.You haven't changed a bit after all these years. 10．(2014·湖南，25)—I've prepared all kinds of food for the picnic. —Do you mean we ________ not bring anything with us? 11．(2014·福建，32)______(be)there no modern telecommunications, we would
一．虚拟语气用于条件状语从句中 1. 表示与现在事实相反或不可能发生：条件状语从句：一般过去时（虚拟语气中be→were）主句用：would(should, could, might)+动词原形。 If we had time now, we would read it again. If I were you, I would work hard. 2. 表示与过去事实相反或不可能发生：条件状语从句：had+过去分词；主句：would(should, could, might)+have+过去分词。 If he had taken my advice, he would have succeeded in the test. If I had known your telephone number then, I would have called you. 3. 表示与将来的事实可能相反或不可能发生：条件状语从句：①一般过去时②should +动词原形③were to+动词原形；主句：would(should, could, might)+动词原形。 If it should rain, the crops would be saved. If it were to snow tomorrow, they would not go out. P.S 虚拟条件句的特殊情况 (1). 混合/错综型虚拟语气 当条件状语从句表示的行为和主句表示的行为所发生的时间不一致时，称为‘错综条件句’，动词的形式要根据它所表示的时间作出相应的调整。 If you had followed my advice, you would be better now.(从句说的是过去，主句是现在) If I were you, I would have taken his advice.(从句是现在，主句是过去) （2）省略if的虚拟语气
高考英语情态动词及虚拟语气 （2011·浙江温州十校联考）10．__________ the clouds, you would find the airplane in the sky easily A．Had it not been for B．If it were not C．If it had not been for D．Were it not for D考查虚拟语气的用法。虚拟条件句如果if被省略，从句需部分倒装。 （2011·浙江温州八校返校联考）31．You ________ worry about it , as everything has been settled now． A．shouldn’t B．needn’t C．can’t D．mustn’t B考查情态动词的用法。句意：你没必要为之而担心，因为现在一切都安置好了。（2011·浙江学军中学第一次月考）33. Why were you driving so fast? You somebody. A.mingt hurt B.might have hurt C.would hurt D.must have hurt B考查情态动词的用法。此处表示对过去事实没有把握的推测，故用might have done的形式。 （2011·重庆师大附中第一次月考）34.—It’s the office! So you ________ know eating is not allowed here. —Oh, sorry. A. must B. will C. may D. need A考查情态动词的用法。此处must意为：不准，禁止。 （2011·重庆师大附中第一次月考）32.But for their help, we ________ the program in time. A. can not finish B. will not finish C. had not finished D. could not have finished D考查虚拟语气。句意：要是没有他的帮助，我们就不能按时完成那个项目。此处表示 与过去的事实相反。 （2011·唐山市摸底）14．Tom have come in person．He came such a long way just to tell us the result． A．mustn’t B．needn’t C．wouldn’t D．couldn’t B考查情态动词的用法。句意：汤姆没有必要亲自来。他走这么远的路就是为了告诉我们这结果。 （2011·河北正定中学第一次月考）8．Jam insisted that the book Mr Black referred to ．A．was worth buying B．was worth to be bought C．being worth buying D．be worth buying D考查虚拟语气在名词性从句中的用法。insist后的宾语从句，在表示坚持某种建议时用虚拟语气should+动词原形。 （2011·浙江杭州西湖中学检测）30. We ________ last night , but we went to the concert instead. A. must have studied B. might study
要点一情态动词的基本用法 ,could 【温馨提示】 can有时也用于肯定句,表示理论上的可能性或一时的情况。常译为“有时会”。 ,might 【温馨提示】 may表示请求许可时,其否定回答一般用mustn’t。may not意为“可能不”,而can’t意为“不可能”。 ,would 【温馨提示】 would表示过去的习惯时仅指动作,而且不与现在作对比;used to表示过去的习惯动作或状态,而且与现在作对比,说明现在这种动作或状态已经不存在。
,should,ought to ,have to 【温馨提示】 (1)在回答must的问句时,否定回答通常用needn’t或don’t have to。(2) mustn’t表示“禁止;不许”;而don’t have to表示“不必”。(3) must只有一种形式,而have to有人称、时态的变化。 的用法 的用法
【温馨提示】 (1)dare用作情态动词有dare,dared两种形式。 (2)dare用作实义动词,后接不定式,不定式符号to可省去,但dare以动词-ing形式出现时,不定式符号to不能省略。 要点二“情态动词+have done ”的用法 have done表示对过去已发生的事情进行肯定的推断,只用于肯定句中,意为“一定,必定”,其否定形式为:can’t/cannot have done。 It must have rained last night,for the road was quite wet. 昨晚肯定下雨了,因为路面十分潮湿。 I saw Mr Wang just can’t have gone abroad. 刚刚我还看见王先生了,他不可能已经出国了。 have done意为“本来可以……,本来能够……”,表示虚拟语气。 You could have made greater progress,but you didn’t try your best. 你本来可以取得更大的进步,但是你没有努力。 might have done表示对过去已发生的事情进行推断,意为“可能/或许已经……”。其否定形式为: may/might not have done意为“可能没有做……”。 It’s no use going to his may not have gone may have gone somewhere else. 去他家没用。他可能没有回家,可能已经去了别的地方。 ought to have done表示本应该做某事,却没有做,含有责备或后悔之意。其否定形式为should not/ought not to