1、Modal verbs 情态动词,表示推测情态动词的重要用法.,1. You must be Mr Smith-I was told to expect you here. 2. He must have known what we wanted. 3. We may have read the same report. 4. He cant have slept through all that noise. 5. Theres someone outside-who can it be? 6. What can they be doing? 7. These pills might hel
2、p to cure your disease. 8. You could be right, I suppose.,1. I dont know where she is, she _ be in Wuhan.2. At this moment, our teacher _our exam papers.这时，我们老师想必在批改试卷。3. The road is wet. It _ last night.(rain)4. Your mother _ for you.你妈妈一定一直在找你。,may,must be marking,must have rained,must have been l
3、ooking,5. Philip _ seriously inthe car accident. 菲利普可能在车祸中受了重伤. 6. -Linda has gone to work, but her bicycle is still here.-She _ (go) by bus. 7. Mike _ his car, for he came to work by bus this morning.迈克一定还没有找回他的车，因为早上他是坐公共汽车来上班的。,may (might) have been hurt,may (might) have gone,cant have found,高考考题
4、: 1. Where is my pen? I _it. A. might lose B. would have lost C. should have lost D. must have lost2. I didnt hear the phone. I _asleepA. must be B. must have been C. should be D. should have been,D,B,4. -There were already five people in the car, but they managed to take me as well.-It _a comfortab
5、le journeyA. cant be B. shouldnt be C. mustnt have been D. couldnt have been 5. Its nearly seven oclock . Jack _be here atany moment.A. must B. need C. should D. could,D,C,表示能力: can, could, be able to*be able to 能用于各种时态, 如将来的能力等。can / could 只能表示现在或过去的能力。*was / were able to : “过去能够并做成功”相当于 managed to
6、 do sth. succeeded in doing sth.。 could have done 表示过去有能力做单未做,1. 表示能力、许可的情态动词的用法。,1. A computer _ think for itself; it must be told what to do.A. cant B. couldnt C. may not D. might not,2. The fire spread through the hotel very quickly but everyone _ get out.A. had to B. would C. could D. was able t
7、o,A,D,3. They will _ run this machine on their own in three months. A. can B. could C. may D. be able to 4. That big cinema _ seat 2,000 people. A. can B. should C. ought to D. is able to,D,A,表示许可: may / might, can / could * might, could 比较委婉, 一般多用于疑问句. * can, may 表达的语言比较随便. * 在以could, might 表示征询对方意
8、见或表示请求时，回答应相应使用can, may(肯定), mustnt(否定).,5. Could I borrow your dictionary? Yes, of course you _.A. might B. will C. can D. should 6. Might I watch TV after supper? Yes, you _.A. may B. must C. might D. can,C,A,2. 表示否定的情态动词的用法:部分情态动词的否定式是情态动词中的考点 之一。,mustnt 不准, 禁止 neednt 没必要 ( = dont have to ) cant
9、不能; 不可能 may not 不可以; 可能不 shouldnt 不应该 ( = ought not to ),7. You _ return the book now. You cankeep it till next week if you like.A. cant B. mustnt C. neednt D. may not 8. Johnny, you _ play with the knife, you _ hurt yourself.A. wont ; cant B. mustnt ; may C. shouldnt ; must D. cant ; shouldnt,C,B,9
10、. -Will you stay for lunch?-Sorry, _. My brother is coming to see me.A. I mustnt B. I cantC. I neednt D. I wont 10. -May I pick a flower in the garden?- _.A. No, you neednt B. Not, please.C. No, you mustnt D. No, you wont,B,C,情态动词：shall, will 的多种意义:,shall / will+ 动词原形:,* shall 可表示必须、命令、 警告或征询意见.,* w
11、ill 可表示意愿、常出现的动作、在疑问句 中表示请求和建议.,* 均可表示将来。 过去时为 should, would.,3.,11. He _ be punished if he disobeys.如果他不服从, 就要受到惩罚. 12. We are not going to quarrel at all if you _only let me speak.只要你让我说话, 我们根本就不会吵架. 13. -Sir, _ he go or stay?-Let him go.A. will B. shall C. might D. could,shall,will,B,14. The door
12、 _ open.这门经常打不开. 15. Ronald _ stay in his small garden for a long time every day in the past.A. could B. might C. should D. would 16. You _ have the book after I read it.我看完以后一定把这本书给你.,wont,D,shall,4. 用于虚拟语气的情态动词:,should/ought to have done 本来应该做却没做might have done 本来可能做却没做could have done 本来能够做却没做woul
13、d have done 本来可以做却没做 neednt have done 本来不必做却做了,5. 情态动词短语的使用:,would like to do would rather do would rather + 从句(虚拟语气) would prefer to do. had better do.,改错: 1. Would you like having some tea?2. Id prefer going to the lecture this evening.3. Id rather you to go to the meeting.4. He would rather to die than to give in.5. Youd better to have your hair cut today.,Would you like to have some tea?,Id prefer to go to ., you went to .,He would rather die than give in.,Youd better have .,
