初中情态动词用法总结-练习含答案

1、专项：情态动词考点 ： 情态动词的用法和辨析，情态动词表示推测和可能，由情态动词引导的一般疑问句的回答。类型 ： 1 只是情态动词：can, could, may, might, must2 可做情态动词，可做实义动词：need, dare3 可做情态动词，可做助动词：will, would, shall, should4 特殊： have to, ought to, used to特征 ： 1 有一定的词义，但不能单独作谓语，必须与行为动词和系动词连用构成谓语。5 无人称和数的变化。（ have to 除外）Eg: He has to stay here.6 后接动词原形。7 具有助动词作用

2、，可构成否定，疑问或简短回答。用法 ：1 . can 表示能力，“能，会 ”。 Eg : Can you play basketball? 表示怀疑，猜测，常用于否定句或疑问句。Eg :Li hua can be intthe classroom. 表示请求，允许，多用于口语，译“可以 ”= may. Eg: you can go now. can 开头的疑问句，肯定句，否定句用can 或 can t.2 .could can 的过去式，表示过去的能力。Eg :I could swim when I was seven years old. could 开头的疑问句，肯定和否定回答用could

3、, couldn t 如果 could 表示现在的委婉，用can 回答。Eg: Could I have a drink? Yes, you can.3 .may 表示推测，“可能，也许”，用于肯定句。Eg: He may come tomorrow. 表示请求，“许可 ,可以 ”。 Eg: May I borrow your book?注：表示请求，许可时，主语为第一人称的一般疑问句，否定回答用mustn 不可以，禁止，不许 t “”, 不用 may not 可能不“ ”。表示祝愿。Eg :May you success.4 .might 表示“可以 ”，用于过去时中。Eg: He told

4、 me I might smoke in the room.用于现在时，表示说话更委婉，礼貌。Eg: He might be doing his lessons now.5 .must表示必须，应该“。表示推测，常用在肯定句中，表 “一定 ”。 Eg: There is someone knocking at the door. It must be Jim.否定句中，mustn t 表示禁止， “不允许”。以must开头的疑问句，肯定句回答用 must,否定回答用neednt,表示“不需要，不必”=“ dont have to” .表示 偏偏。Eg: Must you play the pi

5、ano at this time.6 .need情态动词：+do,用need提问或回答，肯定句回答用 must,否定句回答用neednt.Eg: You needn t come to school so early.实义动词：+to do , 用助动词提问和否定。 +doing 表示被动。 needn t have done 表示没必要做某事但是做了。Eg: I actually needn t have bought so much wine.7.dare情态动词，多用于疑问句，否定句，条件句中。Eg: I m afraid you dare not to do such a thing.

6、注： I dare say 习惯说成 “也许， 我想” 。 Eg: It will rain this afternoon, I dare say.实义动词：dare to do ,用于肯定句中，当用于否定句或疑问句时，to 可以省略。Eg: This student doesn t datroeraise any question in class.8.shall用于第一人称表示征求意见，询问。Eg: Shall I open the window?Shall we have lunch here?表示说话人的态度， “命令，警告，允诺，威胁”。Eg: You shall finish yo

7、ur homework first.用于第三人称，在条约，规定， 法令等文件中表示义务或规定， “应该， 必须” 。 （不常用）9.should 表示义务，责任应该。Eg: We should obey traffic laws.作为 shall 过去式， 用于第一三人称，表示征求意见。Eg: Mr Lee asked if he should get his visa.表示 “竟然” 。 Eg: It s unthinkable that the boy should sing such a beautiful song.表示说话人的特殊情感，如惊奇，愤怒，失望等。Eg: How shoul

8、d I know?表示劝告，建议， 应该。 Eg: You should listen to your teacher.10 .will用于第二人称表示询问，请求，也可以表达现在的 “意愿” 。 Eg: Will you pass me the book?表示意愿，决定，允诺，用于各种人称。Eg: I will try my best to help you.表示规律性的注定会 。 Eg: People will die without air or water.11 .would 表示过去的意愿或委婉询问。Eg: Would you tell me the way to the statio

9、n?12 .have to “必须， 不得不” ， 强调客观需要，含有时态的变化。Eg: I ll have to ask Jim instead.区别：must 表示“必须，应该“，主观看法。13.ought to表示职责，义务或要求，及人们应该去做的正确的事或好事。Eg: Humans ought to stop polluting nature.比 should 语气强，ought to 反映客观情况，should 表示主观看法。 ought to have done 本应该做而没有做。Eg: You are late. You ought to have arrived five mi

10、nutes earlier.14 .used to表示“过去常常，过去是“，没有人称和数的变化，可以和过去的时间状语连 用。否定形式：usednt to或didnt use to凝问词将use提前或Did use to？Eg: He didn t use to be so careless.区别 would :带有主观性，并且现在做不做不知道。Used to :客观性，和现在进行对比，过去常常，现在就不怎么做了。Eg: He would phone me on Sunday.Eg: I used to be very fond of music when I was young.区别：be u

11、sed to doing （情态动词）习惯于 Used to do （情态动词）过去是，过去常常Be used to do （过去式）被用来做 Eg: I am already used to noisy city life here. My parents used to live in South America.This machine is used to cut up waste paper.15 .其他： had better do 最好做某事Eg: You had better stay at home. 否定：had better not do be able to 与 can

12、 表示能力时用法相同，但前者有时态的变化，有能力成功做某事。Eg: We will be able to come back next week.完形填空Have you ever seen the advertisement: Learn a foreign language in six weeks, 1 give your money back? Of course, it 2 happens quite like that. The only language 3 to learn is the mother language. And think 4 practice is need

13、ed for that. Before the Second World War people usually learned a foreign language 5 the literature(文学)of the country. Now most people want to 6 a foreign language. Every year millions of people start learning 7 .How do they do it? Some people try at home 8 books and tapes, others go to evening clas

14、ses or watch TV programs. 9 they use the language only 2 or 3 times a week, learning it will 10 a long time, like language learning at school. A few people try to learn a language fast by studying for 6 or 11 hours a day. Its much easier to learn the language in the country where it 12 . But most pe

15、ople are 13 to do this, and many people dont have to do so. Machines and good books will be very 14, but they can not do the studentswork. 15 the language is learned quickly or slowly, it is hard work.()1. A. soB. orC. andD. but()2. A. can / tB. impossibleC. neverD. often()3. A. easilyB. difficultC.

16、 ableD. easy()4. A. how muchB. how longC. how fastD. how many()5. A. studiedB. to studyC. studyingD. study()6. A. talkB. tellC.speakD. say()7. A. themB. thisC. thatD. it()8. A. withoutB. withC. inD. by()9. A. IfB. WhenC. SinceD. Until()10. A. spendB. useC. takeD. cost()11. A. someB. moreC. otherD. l

17、ess()12. A. speaksB. is speakingC. spokeD. is spoken()13. A. ableB. possibleC. unableD. not possible()14. A. carefulB. forgetfulC. wonderfulD. helpful()15. A. eitherB. whetherC. whatD. how专题练习：一.选择题1. It is usually warm in my hometown in March, but it be rather cold sometimes.A. mustB. canC. shouldD

18、. would2. You be hungry already you had lunch only two hours ago!A. wouldn tB. cantC. mustntD. neednt3. - What do you think we can do for our aged parents?- You do anything except to be with them and be yourself.A. dont have to B. oughtn to C. mustntD. cant4. John promised his doctor he not smoke. A

19、nd he has never smoked ever since.A. might B. should C. couldD. would5. What a pity! Considering his ability and experience, he better.A. need have done B. must have done C. can have done D. might have done6. Liza well not want to go on the trip she hates traveling.A. will B. can C. must D. may7. Sh

20、e have left school, for her bike is still here.A. cantB. wouldn t C. shouldn t D. needn t8. According to the air traffic rules, you switch off your mobile phone before boarding.A. mayB. canC. wouldD. should9. I can t find my purse anywhere. You have lost it while shopping.A. may B. canC. shouldD. wo

21、uld10. I m sorry. I at you the other day. Forget it. I was a bit out of control myself.A. shouldn t shout B. shouldn t have shoutedC. mustn t shoutD. mustn t have shouted11. What sort of house do you want to have? Something big?Well, it be big that s not important.A. mustn tB. needntC. can tD. won t

22、12. What does the sign over there read? “No person smoke or carry a lighted cigarette, cigar or pipe in this area. ”A. willB. may C. shallD. must13. Some aspects of a pilots job be bring; and pilots often work at inconvenient.A. can; have to B. may; canC. have to; may D. ought to; must14. My MP4 pla

23、yer isn t in my bag. Where I have put it?A. can B. must C. should D. would15. The weather turned out to be fine yesterday, I the trouble to carry my umbrella with me.A. should have taken B. could have taken C. needn t have takenD. mustn t have taken16. In crowded places like airports and railway sta

24、tions, you take care of your luggage.A. canB. mayC. mustD. will17. She looks very happy. She have passed the exam. I guess so. It s not difficult after all.A. shouldB. couldC. mustD. might18. I told your friend how to get to the hotel, but perhaps I have driven her there.A. couldB. mustC. mightD. sh

25、ould19. Mr. Gordon asked me to remind you of the meeting this afternoon. Don t forget it! OK, I .A. won tB. don tC. can t D. needn t20. How is your tour around the North Lake? Is it beautiful? - It be, but it is now heavily polluted.A. willB. wouldC. should D. must21. The biggest problem for most pl

26、ants, which just get up and run away when threatened,is that animals like to eat them.A. shan tB. can tC. needn tD. mustn t22. Where is my dictionary? I remember I put it here yesterday.You it in the wrong place.A. must put B. should have put C. might put D. might have put23. What s the name? Khulaifi. I spell that for you?A. ShallB. WouldC. CanD. Might24. Who is the girl standing over there ?- Well, if you know, her name is Mabel