1、中考英语情态动词专项复习I情态动词考点总结考点一：情态动词基本用法情态动词基本用法例句can/could1. 指能力, 也可表示许可或请求。2. could也可用于现在时, 表示有礼貌的请求，语气比can婉转。She can drive, but she cant ride a bicycle. Can I use your telephone? Yes, of course you canCould I use your bicycle? Yes, of course, you can. may/might1. 主要指允许, 许可。2. 表示可能, 肯定的推测。3. 表示祝愿, 常置于句首。
2、May I come in? Yes, please.She said (that) he might come late. = She said, “He may come late.”May you be safe and happy!must/have to/need1. must主要指不可推卸的责任。2. have to意为“必须；不得不”， 起情态动词的作用, 可以代替must。3. need主要指需要。Must I finish all the work today? Yes, you must.You have to drive on the right in the U.S.A
3、.Youll have to go there at once.You neednt get up so early, for it is Sunday today.We need to work harder.should/ought to1. should/ought to主要指义务或责任。2. should/ought to表示提出或征求意见。3. had better 意为“最好，应该” , 可以代替 should/ought to。Every student should obey the school rules.He ought not (oughtnt) to drink to
4、o much.You should try that new restaurant.You ought to read this book. Its really interesting.We had better start at once. Wed better not eat too much fried food, for it is bad for our healthy.练习：1. Whose notebook is this?It Janes. It has her name on it.A. must beB. might belong toC. may beD. could
5、be2. -Could you please come to the museum with me this afternoon?-Sorry, I _ . I have to take a piano lesson at 2 pm.A. couldnt B. mustnt C. cant D. neednt3. -What would you send to your sister as the Christmas gift?-I havent decided yet. I _ send her a hand bag.A. shall B. may C. mustD. need4. -Sha
6、ll we go skateboarding after school?-Sorry, my parents said that I _ be at home early.A. need B. must C. mayD. can5. -_ you swim?-Yes, but Im not a good swimmer.A. Can B. May C. Need D. Must6. Im a little tired. Lets go to the zoo by taxi.We take a taxi. Its not far from here. A. cant B. mustnt C. c
7、ouldnt D. neednt7. They _ play football last Friday because Simon forgot to bring his football here.A. could B. couldnt C. cant D. can8. It doesnt look like rain, so you_ bring your umbrella with you.A. shouldnt B. mustnt C. cant D. neednt9. -What will the weather be like tomorrow?-It _ be rainy, cl
8、oudy or sunny. Who knows?A. must B. might C. shall D. should10. Do we have to finish our homework this afternoon?Yes, you _.A. must B. can C. may D. need11. Trees _ fight air pollution. They are natural air conditionersA. should B. must C. need D. can12. _I borrow these magazines?Sorry, only the mag
9、azines over there can be borrowed.A. Must B. Would C. May D. Need 考点二：含有情态动词的疑问句的回答表示客气或委婉的请求时用may, 用may回答显得冷淡、不客气。所以最好避之而改用热情、客气的答语。1. may提问May I come in? Yes, please. May I borrow your bike? Certainly.May I take this book out of the reading-room? No, you cant /mustnt. 2. must提问Must I do my homewor
10、k now? Yes, you must.No, you neednt./dont have to.3. can提问Can/Could I use your computer? Yes, you can. No, you cant./Im afraid not.4. need提问Need I finish it now? Yes, you must. 练习：1. I take some photos in the hall?No, you . A. Can; neednt B. Must; mustntC. Could; wont D. May; mustnt2. Must I be in h
11、ospital for a week，Doctor? No, you . You can go back home tomorrow.A. mustntB. needntC. mustD. cant3. May I smoke here, please?I am afraid you _. This is a non-smoking area.A. can B. cant C. may D. may not 4. -Must I do the work today? -No, you _. You may do it tomorrow.A. cant B. mustnt C. shouldnt
12、 D. neednt5. May we leave the classroom now?No, you _. You _ to leave until the bell rings.A. mustnt, are allowed B. dont have to, are supposedC. neednt, arent allowed D. cant, arent supposed6. Can I take the magazines out?No, sir. They _ out of the reading-room. Its a rule. A. neednt be taken B. ca
13、nt take C. mustnt be takenD. dont need to take7. Will you stay for some more days? Sorry, I_. My mother called to ask me to go back at once. A. mustnt B. may not C. cant D. wouldnt 8. Must I get up early tomorrow morning? No, _.A. you mustntB. I dont think you have toC. you cantD. you need考点三: 情态动词表
14、示推测的用法1. 在肯定句中一般用must (一定), may (可能), might / could (也许, 或许)。 He may/might know the answer to this question? It is cold in the room. They must have turned off the heating. You must be hungry after your long walk. She must be having a lot of problems with the language. 2. 否定句中用cant / couldnt (不可能), m
15、ay not/might not(可能不)。 It cant/couldnt be the headmaster. He has gone to America. He may not/might not know the scientist. He cant be at home at this time. That cant be Mary because shes now in hospital. 注意：情态动词表推测的句型特点 (语气和时态)语气部分： (以下情态动词语气由强至弱) 肯定句：mustmaymight (=could) 否定句：cant (=couldnt) mayntm
16、ightnt 时态部分：(下以must 为例,其他情态动词以此类推) must be表示对现在的推测 must have done表示对过去的推测 must be doing表示对正在进行的推测练习：1. -Look! The man at the gate _ be our headmaster. He is always standing there every morning. -No, it _ be him. He is holding a meeting in the office now.A. must, cant B. must, mustnt C. cant, cant D.
17、 cant, mustnt 2. -Susan has bought a large house with a swimming pool.-It _ be very expensive. I never even dream about it.A. must B. might C. cant D. shouldnt3. Anna hasnt come to school today. I think she _ be ill. A. can B. has to C. may D. should 4. -It must be John who is in the office.-Im sure
18、 it _ be John. I saw him off at the railway station just twenty minutes ago.A. wont B. mustnt C. cant D. neednt5. The yellow coat _ be Lindas because nobody likes yellow except her.A. cant B. can C. mustnt D. must6. How is your friend coming?Im not sure. He _ drive here.A. may B. can C. must D. will
19、7. -Listen! Helen is singing in the next room.-It _ be Helen. She has gone to Beijing.A. cant B. mustnt C. may D. should8. This pair of shoes _ belong to Jack. He likes this kind very much.It _ be his. Its too large for him.A. can; cant B. may; neednt C. must; mustnt D. must; cant9. Is Jessica givin
20、g us a speech this evening?No, it _ be her. She _ to JapanA. mustnt; has gone B. mustnt; has beenC. cant; has gone D. cant; has been10. Excuse me, can you tell me the way to the zoo? Sorry, Im new here. Please ask that policeman. He _ know.A. canB. needC. mayD. need to11. Mr. Smith must have been to
21、 your home this morningNo, he _, because he didnt know my addressA. couldnt B. cant C. mustnt D. may not12. Whose T - shirt is this?It_ be John s. It s _ small for him.A. cant; much too B. cant; too much C. mustnt; much too D. mustnt; too much综合练习Choose the best answer.1. May I play computer games,
22、Mom?No, you _.A. dont B. cant C. wouldnt D. wont2. Dad, must we wait until the light becomes green?Yes, Im afraid we_ .Thats the traffic rule.A. can B. may C. have to D. need3. _ I see your ID card, sir? We have to check your information.A. May B. Must C. Should D. Need4. Where are you going this mo
23、nth?We_ go to Xiamen, but were not sure.A. neednt B. must C. might D. mustnt5. May I go out for a while, Mom?No, you . You have to finish your homework first.A. shouldnt B. neednt C. mustnt D. wont6. Students in our school _ know shouting is not allowed in the library.A. can B. may C. must D. need7.
24、 Can I park my car in front of the building?No, you _. A. wont B. cant C. neednt D. couldnt8. Shall I take my swimming suit?No, you . We will just go hiking in the mountain.A. mustntB. couldntC. needntD. cant9. Drivers _ wear seat belts while their cars are running on the road. A. needB. canC. mustD
25、. may10. Must I return the book this week?No, you . You can it for 20 days.A. mustnt, keep B. neednt, borrow C. neednt, keepD. mustnt, have11. -Excuse me, whose book is this?-It _ be Johns. It has his name on it. A. must B. need C. cant D. can12. Must I go to medical school and be a doctor like you,
26、 dad?No, you _, son. Youre free to make your own decision.A. cantB. mustnt C. shouldnt D. neednt13. The man _be my English teacher. He has gone to Canada.A. might B. must C. cantD. mustnt14. A country has dreams. We teenagers _ also have dreams. With dreams and hard work, anything amazing can be cre
27、ated. A. may B. must C. should D. need15. According to the new traffic law, everyone in a car _wear the seat belt. A. can B. may C. must D. will16. Whos the man over there? Is it Mr. Black?It _ be him. Hes much taller.A. may not B. cant C. will not D. mustnt17. You _ drive your car so fast. Its very
28、 dangerous.A. wouldnt B. shouldnt C. couldnt D. mightnt18. The woman who is talking with Mr. Brown _ be Miss Li. She has gone to England.A. cant B. must C. may D. mustnt19. From March 23rd 2013, anyone under the age of 14 _ go into Disneys US parks alone.A. couldnt B. mustnt C. neednt D. mightnt20.
29、-Look at the boy playing basketball on the ground. Is it George?-It _ be him. He told me he would play basketball after class, but hes not sure.A. mustnt B. mustC. cantD. may课后总结（以学生自我总结为主，TR引导为辅，为本次课做一个总结回顾）情态动词问答形式考点备注can/couldCan I? -Yes, you can/No, you cant.cant 表示否定猜测may/mightMay I?-Yes, pleas
30、e-No, you cant/mustntmay 表示语气较弱的猜测must/have to/needMust I?-Yes, you must.-No, you neednt/dont have to.must表示肯定猜测needNeed I?-Yes, you must.-No, you neednt.肯定：need to do sth. need sth.否定：dont need to do sth. dont need sth. neednt do sth.【巩固练习】I. Choose the best answer. 1. _I borrow these magazines?Sor
31、ry, only the magazines over there can be borrowed.A. Must B. Would C. May D. Need 2. -Must he finish the work before supper?-No, he _ . He _ finish it after supper.A. mustnt; may B. neednt; can C. need; can D. must; may3. Excuse me, where are we going to have our class meeting?Im not sure. Ask our m
32、onitor, please. He _ know.A. can B. may C. need D. shall4. Whos that man? Is he Mr. Brown?That be Mr. Brown. He never walks this way. A. cant B. mustnt C. must D. can5. Have you decided where to go for your summer vacation?Not yet. We _go to Qingdao . Its a good place for vacation.A. may B. need C.
33、mustD. need to6. You mustnt go off on your own, because you _get lost in the mountains.A. should B. must C. need D. might7. May I smoke here? No, you _. This is a no-smoking room. A. neednt B. mustnt C. couldnt D. wouldnt 8. Must I finish my homework now? No, you _. You can go home now. A. neednt B.
34、 mustnt C. shouldnt D. cant 9. Must I return the hook tomorrow morning? No, you _.You can keep it longer.A. mustnt B. cant C. neednt D. couldnt10. It rained heavily, so we _ stay at home watching TV or surfing the Internet all day.A. couldB. had toC. mustD. needed11. -May I take the magazine out of
35、the reading room?-No, you cant. You _ read it here. Its the rule. A. must B. wouldC. mayD. might12. Be quiet, Mr. Smith is coming.Dont worry. It _be him. Mr. Smith is much taller.A. mustnt B. must C. cantD. neednt13. How long may I keep the book?You _ keep it for two weeks.A. may B. must C. willD. n
36、eed14. Fifty dollars for such a T-shirt! You _ be joking!Im serious. Its made of silk.A. must B. need C. may D. can15. Have you decided where to go for your summer vacation?Not yet. We _go to Qingdao. It is a good place for vacation.A. may B. should C. need D. must 16. Dad, the bread is not enough.
37、I am still hungry. I have something more? But theres nothing in the fridge now. A. Must B. Need C. Will D. Can 17. Wheres David? He be in the playground because he is fond of playing basketball.A. will B. may C. cant D. mustnt18. You _ finish the report today. Any time before Friday is OK.A. mustntB mustC. needD. neednt19. _ I watch TV now, Mom?No. Its too late, and you _ go to bed.A. May; have to B. Will; should C. Can; will D. Must; need20. May we leave the classroom now?No, you_. You shouldnt leave until the bell rings.A. may not B. cant C. needntD. mustnt
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