unit1festivalsaroundtheworld情态动词(1)

unit1festivalsaroundtheworld情态动词(1)内容摘要：

ave done must have gone through a lot. must have visited the White House during his stay in the United States. may/might have done may have learnt the news. may not have heard his name called. I’m late. I might have turned off the alarm clock and gone back to sleep again. can…have done cannot have done can she have gone? he have done such a foolish thing? boy can’t have finished reading the book so soon could have done could have killed himself driving at a dangerous speed. could have done better, but you were too careless. might have done should not swim in that sea. You might have been eaten by a shark. might have given her more help, thought he was busy. 表示对过去已经发生的行为进行肯定 推测，意为“想必，准是，一定做了某事”只用于 肯定句 表示对过去已发生行为的 可能 推测，意为“也许 /或许已经（没有） ……“。 一般用于 肯定句或否定句 中，不用于疑问句。 用 might则表示语气更加不肯定。 表示对过去发生的行为的怀疑和不肯定，通常用在 否定句和疑问句 中。 （ can换成 could时语气委婉） 可用于 肯定句 中，表示“可能已经 ……” 之意，此外，还可以表示 过去能做而没做 的事，有一种对过去为付诸实施的事情的惋惜。 表示“ 本来可能 …… ，但实际上没有发生的事情”。 另外，还可以表示“ 本来应该或可以做某事 ”之意，含有轻微的责备语气。 should/ought to have done should have known that the police would never allow this sort of thing. ought not to have refused his offer. needn’t have done needn’t have watered the plants, for it is going to rain. had better have done had better have started earlier. had better not have scolded her. would rather have done 1． I would rather have taken his advice. 2． I would rather not have told him the truth. 用于肯定句时，表示本该做某事，而实际上未做 ；用于否定句时，则表示不该做的事反而做了。 表示 做了本来不必去做的事。 用于事后的建议，含轻微责备的口吻，意为“当时最好做了某事” ，其否定式 had better not have done表示相反的含义。 表示 “当时宁愿做了某事” ，其否定式 would rather not have done表示相反的含义，两者都表示“后悔”之意。 He must be reading, ____ he? You must know the answer to the question, ____ you? He must have gone over the article, ______he? It must have rained last night, _____ it? 表猜测语气的反意疑问句的构成 isn’t don’t hasn’t didn’t 1. The thief ________ in from the kitchen window as the door was closed. A. may climb B. must have climbed C. could have climbed D. should have climbed 2. —I posted the letter a week ago. —Then they __________ the letter by now. It usually takes four days. A. can have received B. must receive C. should receive D. ought to have receive 3. There were already five people in the car, but they managed to take me as well. — It __________ a fortable journey. A. can’t B. shouldn’t be C. must have been D. couldn’t have been 4. Peter ___ e with us tonight, but he isn’t very sure. B. can C. may D. will C 5. Could I call you by your first name? Yes, you____. A. will B. could C. may D. might C 6. Sorry, I ’m late. I ___ have turned off the alarm clock and gone back to sleep again. B. should C. can D. will A me, but I want to use your puter to type a report. You ____ have my puter if you don’t take care of it. A. shan’t B. might not C. needn’t D. shouldn’t A 8. When can I e for the photos ? I need them tomorrow afternoon. They _____be ready by 12 : 00 . A. can B. should C. might D. need B 9. With so much work on hand, you ____to see the game last night. A. mustn’t go B. could have gone C. shouldn’t go D. shouldn’t have gone D 1. — The room is so dirty. _____ we clean it? — Of course. (2020北京春 ) A. Will B. Shall C. Would D. Do 2. “The interest ______be divided into five parts, according to the agreement made by both sides. A. may B. should C. must D. shall 上述两题均考查 shall的含义，当 shall 用于一、三人称疑问句中时，表示 征求对方意见 ；用于二、三人称陈述句中，表示 说话人给对方的命令、警告、允诺或威胁等。 1. Jack described his father, who ____ a brave boy many years ago, as a strong–willed man. （ 2020 安徽卷） A. would be B. would have been C. must be D. must have been 答案： D 解析：句意为“杰克把他的父亲描述为一个意志坚强的人，他的父亲多年前肯定很勇敢”用 must have been表示对过去事情的肯定推测。 高考真题 2. You _____ buy a gift, but you can if you want to. （ 2020 湖南卷） A. must B. mustn39。 t C. have to D. don39。 t have to 答案： D 解析： don’t have to 意为“没有必要”，符合语境，句意为：“你没有必要买礼物，但如果你想买的话，你也可以买。 ” 3. I have told you the truth. ______ I keep repeating it? （ 2020 江西卷） A. Must B. Can C. May D. Will 答案： A 解析： must 必须 , 一定 can 可以 , 能够， may 也许， will 意愿 , 倾向性动作。 前半句说我告诉你事实了 , 这里用的是现在完成时 , 表示过去的动作对现在造成了影响 , 既然我已经说了 , 我还必须重复一遍吗。 4. I_______ have watched that movie — it’ll give me horrible dreams. （ 2020山 东卷） A. shouldn’t B. needn’t C. couldn’t D. mustn’t 答案： A 解析：句意应为“我本来不应该看那部电影的 它会使我做噩梦的。 ”表示“本来不应该做而做了某事”用 shouldn’t have done, 所以 A项正确。 情态动词 (Ⅰ ) 1． (2020唐山模拟 )—What do you think of the film Avatar? —It ________ be better. I even want to see it twice. A． won‘t B． couldn39。 t C． shouldn39。 t D． mightn39。 t 答案： B 2． (2020东北三校联合模拟 )—Mum， would you please buy me an MP5 player? —If you can help do the dishes the whole vacation， you ________ have one as a reward. A． must B． need C． would D． shall 答案： D 3． (2020郑州一检 )—I dreamed of some animals running on the moon. —It ________ be. There is no air or water on the moon，you know. A． can39。 t B． may not C． shouldn39。 t D． mustn39。 t 答案： A 4． (2020南通名校联考 )He is a badtempered man， but he ________ be quite charming when he is cheerful. A． shall B． must C． dare D． can。