情態(tài)動詞語法講解及練習.doc

情態(tài)動詞1.表示推測情態(tài)動詞在表示推測時的用法 一般情況正在進行的狀況已經(jīng)發(fā)生的事情過去一直在-must肯定（只用于肯定句） do be doing have donehave been doingcan/could(not)可能嗎？不可能（只用于疑問句，否定句） do be doing have donehave been doingmay/might/could可能 do be doing have donehave been doingmay/mighr not可能不dobe doinghave donehave been doing例句a. -Hi, Tom .Any idea where Jane is?-She must be in the classroom. I saw her there just now.你好，湯姆。你知道瓊在哪兒嗎？她肯定在教室。我剛剛在那兒見到她的。b. -“Can he be at home?-No,he cant.他會在家嗎？不可能。c. -Li Ping must be reading in the classroom.-No,he cant.I saw him in the hall just now.李平肯定正在教室看書。不可能。我剛剛看見他在大廳。注意比較： She may/might /could be at home.她可能在家。 She may/might not be at home.她可能不在家。 She cant be at home.她不可能在家。 She must be at home.她肯定在家。 Can she be at home?她可能在家嗎？（注意以上幾個句子的意思區(qū)別）d,She said that someone must have heard us in the toilet.她說肯定有人在廁所聽到我們說話了。He might have done something wrong yesterday.他昨天可能做錯事了。From 7to8yesterday evening,he must have been waiting for you.昨天晚上7點到8點他肯定一直在等你。注意：1)should有時也可表示推測意為“應(yīng)該”例句：-When will I come for the phones?I need them tomorrow afternoon. -They should be ready by 12:00.我什么時候來取照片？我明天下午需要。12點以前應(yīng)該沒問題.注意2）Children mustnt play in the street.孩子們不能在街上玩。（mustnt不表示推測，表示不能，不允許）Mother is sleeping.You mustnt make any noise.媽媽在睡覺。你不能吵。2.should (not)have done本該-/本不該-（有譴責之意）ought(not) to have done本該-/本不該-You are late again. You should/ought to have started earlier.你又遲到了。你本該早點出發(fā)的。Why tell her the bad news ?You shouldnt/ought not to have let her know it.為什么把這個壞消息告訴她？你本不該讓她知道的。注意：neednt have done本不需要-（無譴責之意）You neednt have so hurried.There is plenty of time left.你本不需要這么急忙。時間足夠。3（1）-Must I stay ( at) home? -Yes, you must./No,you neednt./No, you dont have to.我一定要呆在家里嗎？是的。/不，你不必了。（2）-May I go out now?-Yes, you may./No,you mustnt.我可以現(xiàn)在出去嗎？是的，你可以出去。/不，你不能出去。（3）-Need I stay here?-Yes, you must.No,you neednt./No, you dont have to.4.Shall I /we /he/she/they do-?(在疑問句中用于第一，三人稱)表示征求對方意見Shall I open the door?要我開門嗎？Shall he stay for the night?讓他留下過夜嗎？You/He/They shall do-.(用于二，三人稱肯定句中，表示允諾，強制，命令，警告等。If you insist on doing so ,you shall be punished.如果你堅持這么做，你就會受到懲罰。（警告）5.can,be able to表示過去某個時間經(jīng)過努力能-，（只有一次）一般不用couldLast night ,they wre able to escape from the big fire.昨天晚上，他們從大火中逃出來了。6. Would/Could you do-?回答是應(yīng)用can/will而不用would/could-Would you like to go with me? -Yes, I will. 情態(tài)動詞練習一基本題1. In fact, you _ go outside at all. Theres a supermarket just downstairs.A. couldntB. mustntC. needntD. shouldnt2. -Did Mary come to the party? -I dont know. She _while I was out. A. may have come B. must have come C. might come D. could come3. Alice looks sad. Did you tell her about the accident? Yes, but I her just before her final examinations.A. should have told B. shouldnt have told C. neednt have told D. must have told4. “I know she was in because I heard her radio, but she didnt open the door.” “She _ the bell.” A. may not be hearing B. may not have heard C. must not have heard D. must not be hearing 5. - Look, Tom has fallen asleep. - Oh, he _ too late yesterday evening.A. might stay up B. should have stayed up C. could stay up D. must have stayed up6. We would join them for dinner_. A. should they ask B. shall they ask C.if they ask D.whether they ask7. _ it be true that the road is being blocked at this moment, for cars are moving like snails inch by inch A. may B. should C. can D. must8. As it turned out to be a small house party, we _so formally. A. neednt dress up B. did not have dressed up C. did not need dress up D. neednt have dressed up9. According to the school rules, no student_ go out of the school after eleven oclock at night without the teachers permission. A. will B.shall C. must D. should10. As we all know, he has regretted wasting the precious time when he_ studied hard playing computer games at school.Ashould haveBwould haveCmight haveDmust have11-May I stop my car here? -No, you_.A. cant B. mustnt C. neednt D. dont have to12. Must we clean the house now? No, you _.A. neednt B. may not C. mustnt D. cant13. John_his father about his failure in the exam.A. dares not tell B. dares not telling C. dare not tell D. dares not to tell14. You_ return the book now. You can keep it next week if you like.A. cant B. mustnt C. neednt D. may not15. Johnny, you_ play with the knife, you _hurt yourself.A. wont.cant B. mustnt.may C. shouldnt, must D. cant.shouldnt16. The fire spread through the hotel very quickly but everyone _get out.A. had to B. would C. could D. was able to17. -Would you go out for a walk with me?-No, I _ .My girl friend is coming.A. wouldnt B. shall not C. wont D. shouldnt18. Man _die without water. A. will B. can C. need D. shall19. I mailed the letter two weeks ago. She_it.A. must receive B. cant receive C. might receive D. must have received20. Theres no light on - they _ be at home.A. cant B. mustnt C. neednt D. shouldnt 1-5CABBD6-10ACDBA11-15BACCB16-20DCADA二高考題1、(2011全國卷I32) They _ have arrived at lunchtime but their flight was delayed. A. will B. can C. must D. should2、（2011全國卷II8）If you _ smoke, please go outside. A. can B. should C. must D. may3、（2011北京卷24）- I dont really like James. Why did you invite him? - Dont worry. He _ come. He said he wasnt certain what his plans were. A. must notB. need notC. would notD. might not4、（2011陜西卷24）- Will you read me a story ,Mummy? - OK. You_ have one if you go to bed as soon as possible. A. might B. must C. could D. shall5、（2011重慶卷25）- Why didnt you come to Simons party last night?- I wanted to, but my mom simply _ not let me out so late at night.A. could B. might C. would D. should6、(2011上海卷28) I _ worry about my weekendI always have my plans ready before it comes.A. cantB. mustnt C. darentD. neednt7、（2011湖南卷28）-No one _ be compared with Yao Ming in playing basketball. -Oh, you are really his big fan.A. can B. need C. must D. might8、（2011江西卷23）It _ be the postman at the door. Its only six oclock. A. mustntB. cantC. wontD. neednt9、（2011四川卷20）The police still havent found the lost child, but theyre doing all they _. . A. can B. may C. must D. should10、（2011江蘇卷34） I left my handbag on the train, but luckily someone gave it to the railway officials. How unbelievable to get it back! I mean, someone_ it.A. will have stolen B. might have stolen C. should have stolen D. must have stolen11、（2011安徽卷26） What do you think of store shopping in the future? Personally, I think it will exist along with home shopping but _.A. will never replace B. would never replace C. will never be replaced D. would never be replaced12、（2011浙江卷11）Hows your new babysitter? We _ ask for a better one. All our kids love her so much. A. should B. might C. mustnt D. couldnt 13、（2011福建卷25） Shall I inform him of the change of the schedule right now? I am afraid you _ , in case he comes late for the meeting.A.will B.must C.may D.can14、（2010安徽32）Jack described his father, who _a brave boy many years ago, as a strongwilled manA. would be B. would have been C. must be D. must have been 15、（2010山東卷） I_ have watched that movie It