情态动词 (5)

1、GrammarTwo eyes can see more than one.I am so strong that I can lift this stone.He said that Jack couldnt finish his work in such a short time.He is only four, but he is able to read.She was able to do it without my help.Will you be able to come to my party tomorrow?表能力can couldbe able to有时态变化You ca

2、n go now.Could I say it in Chinese?May I know your name?Would you mind closing the door?Shall we dance?Might I have a word with you?语气强 弱表许可,征询意见can, willcould / may / would / shall / mightThere must be a mistake.You may walk ten miles without seeing a house.He might get there on time.It can be true

3、.In those days few workers could support their families.表可能性(猜测)must may, might, can, could肯定句语气强 弱语气强 弱She cant be serious.We couldnt have done better.People may not pick flowers in this garden.She was afraid they might not like the idea.表不可能(猜测)cant, couldntmay not, might not否定句mustnt, shouldnthad

4、 better notWe mustnt waste our time.They shouldnt left so soon.Youd better not disturb him.表禁止You should do what your parents tell you.If you cant finish the book by then, you must come and renew it.This is a lovely party, but we have to go because of the baby. The bridge was not wide enough so that

5、 somebody had to give way.should, musthave to表义务(应该)有时态变化翻译下列句子, 体会情态动词的不同用法: Tom, you mustnt leave all your clothes on the floor like this! 2. He must have completed his homework; otherwise, he couldnt be enjoying himself by the seaside.(表示禁止, 意为 “不许”)(must+ have+过去分词, 表示对过去事情肯定的推测)3. Helen may go

6、on the trip with us, but she isnt quite sure yet.4. - Isnt that Anns husband over there? - No, it cant be himIm sure he doesnt wear glasses.(表示可能性, 意为 “可能”)(对目前状态表示否定推测, 意为 “不可能”)5. I often see lights in that empty house. Do you think I should report it to the police?6. Children under 12 years old i

7、n that country must be under adult supervision when in a public library.(表示应该)表示义务或必要, 意为 “必须”7. -Who is the girl standing over there? - Well, if you must know, her name is Susan.表示主张, 意为 “一定要” 8. You cant imagine that a gentleman should be so rude to a lady.表示吃惊, 意为 “竟然会”9. There must be some reaso

8、ns for his absence.10. - Need I do the experiment again after class? - Yes, you must. (No, you neednt)(表示对现在事情的推测) need引起的疑问句肯定回答用must.PracticeThat must be a mistake. No, it _ a mistake. A. must not be B. neednt be C. cannot be D. would not be 2. _ I water the trees on Tuesday? No, you neednt. A. Ca

9、n B. Must C. May D. Shall 3. He _ not pay unless he is punished to pay. A. shallB. will C. can D. would 4. Since the road is wet this morning, _ last night. A. it must rain B. it must have rained C. it must be rained D. it must have been rained 5. Lets go to the library this afternoon, _? A. shall w

10、eB. will we C. can we D. should we 6. Where are my keys? I _ lost them. A. ought to B. should have C. will have D. must have 7. Even if he has time, he _ shopping in town on Sunday. A. wont go B. will go C. wont go to D. doesnt go 9. He _ finished earlier. A. shall have B. ought to C. could have D.

11、must have 10. In case I _, I would try again. A. will fail B. would miss C. should fail D. shall miss 13. Everyone _ do his best to make the world safe and clean. A. can B. may C. should D. had to14. _ to have lunch with us today? A. Do you like B. Would you like C. Will you like D. Have you like 15

12、. Will you lend me your book? Yes, I _. A. will B. need C. can D. must 16. If I had time, _ see that new movie at the Capital Theater. A. I will B. I may C. I shall D. I would 17. The English of her composition is too good. She cant _ it herself. A. have to write B. have written C. write D. be writt

13、en 18. You _ the look on his face when he won the lottery. A. would have seen B. can be seeing C. must see D. may see 19. The light is out in her room; she _ to bed. A. must have gone B. had gone C. must be going D. must go 20. They _ that far; but they stopped to have a snack on the way. A. might b

14、e gone B. needed go C. could have gone D. ought have gone 21. As physics is hard enough, I _ study it. A. am not able B. couldnt C. am not able to D. cannot 22. You _ to the meeting this morning if you have something important to do. A. neednt to come B. dont need come C. dont need coming D. neednt

15、come Correct the mistakes and say why.John shoulds go to school on time.At that time we thought we musted hand in our paper.You must to finish your homework in time.We dont can be there tomorrow.They should may do that.shouldmustcantshould / may从方框中选择合适的情态动词并用其适当形式（包括否定式）填空。must, can, may, ought to,

16、 have to, should1. He _ tell a lie, because he is an honest boy.2. The last bus has gone. We _ take a taxi.3. Harrys been driving all day he _ be tired.musthave tocant4. I knew things are hard with you, but you _ try to get over the difficulties.5. The girl _ know the truth, but I am not sure.maymus

17、t / ought to / should高考链接1. I often see lights in that empty house. Do you think I _ report it to the police? (2004全国卷III) A. should B. may C. will D. can2. Tom, you _ leave all your clothes on the floor like this! (2005全国卷I) A. wouldnt B. mustnt C. neednt D. may notAB3. Is Jack on duty today? No, it _ be him. Its his turn tomorrow. (四