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1、Grammar情态动词情态动词例例1： - There were already five people in the car but they managed to take me as well.- It _ a comfortable journey.A. cant be B. shouldnt be C. mustnt have been D. couldnt have been例例2：- I stayed at a hotel while in Beijing.- Oh, did you? You _ with Barra.A. could have stayed B. could
2、stayC. would stay D. must have stayed* could (can) + have + 过去分词过去分词 VV此结构表示对过去发生的事情的此结构表示对过去发生的事情的“怀疑怀疑”或或“不肯定不肯定”。e.g. Can they have won the basketball match? It couldnt have been Mr. Green. He has gone to New York. You could have completed the task a little earlier.* be able to, manage to do, suc
3、ceed in doinge.g. In the end they were able to rescue the cat on the roof.例例3: The fire spread through the hotel very quickly but everyone _ get out. (NMET 97) A. had to B. would C. could D. was able toV mustnt, must, may mustnt 表示表示“禁止禁止”，“千万不能千万不能”之之意。意。 may 表示推测。表示推测。例例4: Johnny, you _ play with
4、the knife, you _ hurt yourself. (NMET 96) A. wont; cant B. mustnt; may C. shouldnt; must D. cant; shouldntV must 表示表示“必须必须” - Must I hand in my exercises now? - Yes, you must. (No, you neednt.) 表示表示“禁止禁止” You mustnt play in the street. 表示表示“猜测猜测”，只能用于肯定句。，只能用于肯定句。 There must be a ticket left. must +
5、 have + 过去分词过去分词 You must have heard from her. may/might 表示表示“许可许可” He told us that we might drop in at any time. 表示表示“可能性可能性” He may not realize his mistake. may/might + have + 过去分词结构表示对过去过去分词结构表示对过去事情的推测，认为某事在过去可能发生。事情的推测，认为某事在过去可能发生。 He might / may have stayed at home that day. You might / may ha
6、ve had much trouble in doing that.例例5：- Are you coming to Jeffs party.- Im not sure. I _ go to the concert instead. A. must B. would C. should D. mightV should例例6：- When can I come for the photos? I need them tomorrow afternoon.- They _ be ready by 12:00.A. can B. should C. might D. needV should 表示劝
7、告、建议等。表示劝告、建议等。 We should study hard for the people. should+have+过去分词结构的否定形式表示过去分词结构的否定形式表示“过去某过去某事不应该发生了事不应该发生了”；其肯定形式表示过去应当做某事；其肯定形式表示过去应当做某事而没做或表示竟然，责备。而没做或表示竟然，责备。 You should not have told him about that. You should have studied hard. They should have lost the match. Exercises:1.- Write to me wh
8、en you get home. - _. A. I must B. I should C. I will D. I can2. - Will you stay for lunch? - Sorry, _. My brother is coming. A. I mustnt B. I cant C. I neednt D. I wont3. - Did you scold him for his carelessness? - Yes, but _.A. Id rather not to B. Id rather not have doneC. I shouldnt do D. Id bett
9、er not doVVV4. You didnt go to the party yesterday, or I _ you.A. would see B. could seeC. might have seen D. might see 5. Look what you have done. You _ have been careful.A. should B. can C. must D. may6. The cat _ hibernate(冬眠冬眠) in winter. A. dont need B. doesnt need to C. needs not to D. needs n
10、ot VVV7. Put on more clothes. You _ be feeling cold with only a shirt on. A. can B. could C. would D. must8. The plant is dead. I _ it more water. A. will give B. would have given C. must give D. should have given9. I didnt hear the phone. I _ asleep. A. must be B. must have been C. should be D. should have been10. He was busy or he _ her more help. A. had given D. would give C. could have given D. giveVVVVThanks a lot!