Part 4 【语法】情态动词重难点及易错点情态动词+动词原形情态动词表允许及其回答情态动词表猜测情态动词词义否定形式词义can能够，会;可以；也许，可能cant不能，不会不可能could能够，会couldnt不能，不会may可以may notmust必须mustnt 不允许，不能shall将，要should应该shouldnt不应该need需要neednt不必would将会，愿wouldnt不会，不愿ought to 应该【情态动词表允许】1、 请求允许做某事时，can最常用，在没有把握或为表现得更客气一些时，可用could; 而may比can 更正式一些，且多用于第一人称Could I watch TV?Can you find a seat for me?May I use your phone?2、 当允许某人做某事时，要用can和may,不用could 和 might.Could I borrow your computer? Yes, of course you can.Might I trouble you for a light? Yes, you may.3、 常考易错点：对情态动词表请求的回答：肯定：Sure.否定： Youd better not.Certainly.Im afraid not.Yes, do please.Im sorry, but you cant /mustnt.No problem.Thats OK/all right.Yes, you can/may.With pleasure.4、 例：May I smoke here?Sorry, but you mustntMust I go home before 8 oclock?No, you neednt/dont have to .Need I go?Yes, you must. / No, you neednt.Would you mind if I smoke here?Yes, youd better not. / No, of course not.【情态动词表猜测】肯定：must canmay否定：cant may not一定是；肯定是_; 可能是_;一定不是;不可能是_;可能不是_;【针对练习】( ) 1. _ I take it out? Im sorry, you _.A. Could .couldntB. Might.might notC. Could .can D. May.cant( ) 2. Need we do this job now? Yes, _.A. you need B. you should C. you mustD. you can( ) 3. He said that you _ watch TV all the evening if you wished.A. may B. must C. can D. might ( ) 4. Peter _ come with us tonight, but he isnt very sure yet.A. must B. can C. may D. will( ) 5. Michael _ be a policeman, for hes much too short.A. neednt B. cant C. shouldntD. wont ( ) 6. Come on! We _ hurry because there isnt much time left.A. may B. must C. can D. need( ) 7. -Do you mind if I turn on the TV?-_. My father is sleeping.A. Better not.B. No, not at all.C. No, I dont mind.D. Thats all right.( ) 8. -Would you mind my sitting next to you?-_.A. No, of course not.B. No, you cant. C. Yes, please.D. Yes, go ahead.( ) 9. -Would you please pass me todays paper?-_.A. Yes, please.B. Here you are.C. You are welcome.D. I think so.( ) 10. -Could I call you by your first name?-Yes, you_.A. will B. could C. may D. might( ) 11. I wasnt sure whether I _offer to help or not.A. should B. might C. would D. needed( ) 11. There _ too much noise in a hospital.A. should haveB. shouldnt haveC. ought to beD. oughtnt to be( ) 12. Albert is too fat. She _ eat too much sweet.A. had better notB. shouldC. ought toD. ought to not( ) 13. - _ they better wait here, sir?-No, they _.A. Do; dontB. Had; hadntC. Had; dontD. Had; had( ) 14.-Excuse me, sir! Can I finish my homework tomorrow morning? - Oh, no. It _ be finished tonight,A. wouldB. shouldC. couldD. can( ) 15.You had better_ your job on timeA. finishingB.to finishC. finishD. finishedBABBC【巩固练习】( ) 12. -Is John coming by train?-He should, but he _ not. He likes driving his car. A. must B. can C. need D. may( ) 13. I thought you _ be hungry, so I have brought you some cakes.A. may B. might C. can D. could( ) 14. -Could you please help me choose an MP4 player online?-_. My computer doesnt work.A. I dont care.B. I hope so.C. Im afraid not.( ) 15. -Would you mind if I sit here?-_. Its for Miss Zhang.A. Better not.B. Never mind.C. Not at all.D. Of course not.( ) 16. You _walk for miles and miles among the hills without meeting anyone if you go there.A. must B. need C. may D. shouldDCDDC BBBAC AABCCA【中考链接】( ) 1. To keep children safe, we _ put the things like knives and medicine away in our house. (2017广东中考)A. mayB. shouldC. can D. might ( ) 2. -Mum, _ I visit the Modern Art Museum next Monday? (2016广东中考)-Im afraid you cant. All the museums in this city are closed on Monday. A. wouldB. needC. shouldD. may( ) 3. - _ I hand in the report today? (2017北京中考)- No, you neednt.A. Can B. Must C. Shall D. Could( ) 4. -_ I park my car here for a while? (2017上海中考)-No, you mustnt. Do you see the sign “NO PARKING”? A. Would B. MayC. MustD. Should ( ) 5. -Must I prepare for the trip today? (2017哈尔滨中考)- No, you _ prepare for it today. You can do it tomorrow. A. need B. dont needC. neednt( ) 6. -Many people play