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一、考查can的用法 a. 考查can表示能力的用法。 在这一用法中,can表示能力,意思是"能,会",其否定式can't表示"不能"。在过去时中用could和couldn't。例如: 1.-Where's Mr. Lee? I have something unusual to tell him. -You________find him. He________Japan. (2003黑龙江) A. may not; has gone to B. may not; has been to C. can't; has gone to D. can't; has been to 2.-Finish drawing a horse in ten minutes. OK? -Sorry. It________in such a short time. (2003山东威海) A. may do B. can't be done C. must do D. needn't be done 3. I have my own room in my house, so I________do what I want in it. (2002江西) A. must B. have to C. need to D. can 4.________you mend my car? I______not start it. (2002常德市) A. Would; would B. Must; must C. Can; can D. May; may 5.________she ride when she was three years old? (2002长沙市) A. Can B. Could C. Need D. May 6. The boy________answer this kind of hard questions one year ago. (2002四川省) A. can B. may C. could Answers: 1. C 2. B 3. D 4. C 5. B 6. C b. 考查can表示推测的用法。 在这一用法中,can意为"可能",表示客观可能性,常常用于疑问句和否定句中。例如: 7. Who is the man over there? Is it Mr. Li? -No, it________be him. Mr. Li is much taller. (2003河北) A. mustn't B. may not C. can't D. needn't 8. -Listen! Someone is singing in the next room. Who________it be? Is it Wei Fang? -No. It________be her. She is at school now. (2002重庆市) A. will; may not B. must; mustn't C. may; can't D. may; won't 9. -Is Mr. Hu in the reading room? -No, he________be there. He has gone to Tianjin. (2002新疆) A. mustn't B. needn't C. won't D. can't 10. Class 3 won the football match! ________it be true? (2002广东) A. May B. Must C. Will D. Can Answers: 7. C 8. C 9. D 10. D c. 考查can / could表示请求许可的用法 在这一用法中,can和could都表示现在,用could比用can语气更加委婉客气,常用Could I / you...?句式,表示"我/你能……吗?"若表示同意要用can,不用could? 例如: 11.-Could I look at your pictures? -Yes, of course you________. (2003武汉) A. could B. can C. will D. might 12.________you pass me a pen? I'd like to write down the telephone number. (2002北京市海淀区) A. Need B. Could C. Must D. Should Answers: 11. B 12. B 二、考查must的用法 a.考查must表示义务的用法。 在这一用法中,must意为"必须","应该",表示必须要做的事,其否定式mustn't表示禁止,即不许对方做某事。例如: 13.-May I go to the cinema, Mum? -Certainly. But you________be back by 11 o'clock. (2003安徽) A. can B. may C. must D. need 14.-SARS is such a terrible disease. -Yes, it is. We________be more careful. (2003浙江嘉兴) A. can B. may C. must D. need 15. To make our city more beautiful, rubbish________into the river. (2003重庆) A. needn't be thrown B. mustn't be thrown C. can't throw D. may not throw 16. These books________out of the reading room. You have to read them here. (2003辽宁) A. can't take B. must be taken C. can take D. mustn't be taken 17. Cars, buses and bikes________stop when traffic lights change to red. (2002上海市) A. can B. may C. must D. need Answers: 13. C 14. C 15. B 16. D 17. C 要注意must和have to的用法区别：must表示说话人的主观看法,而have to表示客观的需要,意思是"不得不" 例如: 18. -Can you go swimming with us this afternoon? -Sorry, I can't. I________take care of my little sister at home because my mother is ill. (2003南京) A. can B. may C. would D. have to Answer: 18. D 回答must开头的一般疑问句,如果是否定的回答,要用needn't或don't have to,表示"不必","没有必要"的意思, 不用mustn't, 因为mustn't表示禁止或不许, 意思是"一定不要"的意思。例如: 19. -Must I finish the work before five o'clock? -No, you________. (2003四川) A. needn't B. mustn't C. have to 20. -________I come back before five o'clock? -No, you________. But you________be back later than seven o'clock.(2002烟台市) A. Need; must; mustn't B. May; mustn't; can't C. Can; can't; can't D. Must; needn't; can't 21. -Must I clean the room right now? -No, you________. You________clean it after lunch. (2002徐州市) A. needn't; can B. needn't; may C. mustn't; can Answers: 19. A 20. D 21. B b.考查must表示推测的用法。 在这一用法中,must意为"一定","肯定",表示可能性很大,通常用于肯定句,在否定句中要用can't,表示"不可能"。例如: 22. Susan's parents have bought a large house with a swimming pool. It ____be very expensive. (2003上海) A. must B. can C. mustn't D. can't 23. This book________Lucy's. Look! Her name is on the book cover. (2002河南) A. must be B. may be C. can't be D. mustn't be Answers: 22. A 23. A 三、考查may的用法 a. 考查may表示请求许可的用法 在这一用法中,may表示许可或征询对方许可,表示"可以"的意思,常常与第一人称I连用,构成May I... 句式,表示"我可以……吗?"肯定回答用Yes, you may.; Yes, please.等;否定回答用No, you can't.或No, you mustn't.,不用No, you may not. 例如: 25. -________I have your name, please? -Yes, Michael. M-I-C-H-A-E-L. (2002北京市东城区) A. Must B. Will C. May D. Need 26. -May I go to the cinema, dad? -No, you________. You must finish your homework first. (2002浙江金华市) A. mustn't B. won't C. don't D. needn't 27. -May I smoke here? -________, you________. It can be dangerous. (2002滨州市) A. Yes; can B. No; can't C. Yes; may D. No, needn't Answers: 25. C 26. A 27. B b. 测试may表示可能性的用法。 在这一用法中,may表示可能性,意思是"也许","可能",通常用于肯定句中。例如: 28. You________go and ask Meimei. She________know the answer. (2003天津) A. must; can B. must; may C. need; can D. can; may 29. Look out! The knife is very sharp. You________cut your finger. (2002宁夏) A. need B. must C. should D. may Answers: 28. D 29. D |
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