初中英语情态动词专项练习(含答案)

1、精品资料欢迎下载情态动词情态动词是一种本身有一定的词义， 但要与动词原形及其被动语态一起使用， 给谓语动词增添情态色彩，表示说话人对有关行为或事物的态度和看法，认为其可能、应该或必要等。情态动词后面加动词原形。情态动词有四类：只做情态动词： must,can(could),may(might)可做情态动词又可做实义动词：need，will具有情态动词特征：have(had,has) to,used to， ought to情态动词表猜测：一肯一否三不定（must 一肯， can not一否， may， might ，could ，三不定。）注： mustn't代表强烈禁止 must 表

2、示主观， have to 表示客观。常用的有： canmaycouldmusthaveuse.情态动词无人称和数的变化， 情态动词后面跟的动词须用原形， 否定式构成是在情态动词后面加 "not" 。个别情态动词有现在式和过去式两种形式，过去式用来表达更加客气，委婉的语气，时态性不强，可用于过去，现在或将来。情态动词属非及物动词，故没有被动语态。情态动词表推测的用法小结（一）情态动词表推测的三种句式1在肯定句中一般用 must （一定）， can,could （可能）， might /may （也许，或许）。 e.g:(1)He must/can/may,might know

3、 the answer to this question.他一定 / 可能 / 也许知道这个问题的答案。(2)It is cold in the room. They must have turned off the heating.屋里很冷，他们肯定把暖气关了。2否定句中用 cant / couldn t （不可能）， may not/might not （可能不）。 e.g:(1)It can t/couldn t be the headmaster. He has gone to America.这不可能是校长，他去美国了。(2)He may not/might not know the

4、 scientist.他也许不认识那位科学家。3疑问句中用 can/could（能 ?）。e.g:(1)Could he have finished the task?精品资料欢迎下载他可能把任务完成了吗？注：以上三种句式中情态动词的语气按程度都是依次递减的。Might,could并非 may,can 的过去式，而表示语气较为委婉或可能性较小。（二）情态动词表推测的三种时态1对将来情况的推测，用“情态动词+ 动词原形 ”。e.g:(1)She must / may / might / could arrive before 5.5:00 前她一定 / 可能 / 也许到。2对现在或一般情况的推测

5、，用“情态动词+ be ”，“情态动词+be doing ”或“情态动词+动词原形”。e.g:(1)He must / may / might / could be listening to the radio now.他一定 / 可能 / 也许正在听收音机。(2) He cant ( couldnt ) / may ( might ) not be at home at this time.这个时候他不可能 / 可能不在家。3对过去情况的推测，用“情态动词+ have + 过去分词”。e.g:(1)It must / may / might / could have rained last

6、night .The ground is wet.地湿了，昨晚肯定 / 可能 / 也许下雨了。(2) The door was locked. He can ( could ) not / may ( might ) not have been at home .门锁着，他不可能 / 可能不在家。注：情态动词 should /ought to表推测时，意为“想必会，理应”但与“have + 过去分词”连用时，则又可构成虚拟语气意为“本应该做某事却没做”。例如：(4) It s seven o clock. Jack should/ought to be here at any moment.现

7、在七点钟了，杰克理应随时到达。（推测）（ 5） Tom should not /ought not to have told me your secret,but he meant no harm.（虚拟）汤姆本不该告诉我你的秘密，可是他并无恶意。can 和 could表示推测的用法对现在或将来的推测，两者均可用，但can 通常只用于否定句或疑问句中，一般不用于肯定句，而且此时can 仍只用于否定句或疑问句，不用于肯定句；而could则可用于各种句型。如：精品资料欢迎下载Can Could this be true?这能是真的吗Where can could he have gone?他能到哪

8、里去了呢She cant couldnt have left so soon.她不可能走得这么早。注： could 后接动词的完成式，除表示对过去的推测外，还可表示过去没有实现的可能性（即某事本来可以发生，却没发生），或委婉地责备某人过去应该做某事而没有去做（此时不用can）。如：You could have started a little earlier.你本可早点动身的。You neednt have cooked it. We could have eaten it raw.你其实可以不煮熟（它），我们（本来）可以生吃。can 和 could表示允许的用法表示现在的允许时，若是请求别人

9、允许自己做某事，两者均可用，但用could语气更委婉；若是自己允许别人做某事，一般只用can ，而不用 could 。如：Can Could I come in?我可以进来吗“Could Can I use your pen? ” “Yes,of course you can. ” “我可以借用你的钢笔吗 ?”“当然可以。”（不能说 Yes,you could.)表示过去的允许时，若表示过去一般性允许（即表示某人随时都可以做某事），用could ；若表示在过去某一特定情况下允许进行某一特定的活动，则不用could 。如：When I lived at home,I could watch TV

10、 whenever I wanted to.我住在家里时，想什么时候看电影就可以什么时候看。（一般性允许）I was allowed to see the film yesterday evening.昨天晚上允许我去看了电影。（特定的允许，不能用 could)can 和 could表示能力的用法can 表示现在的能力， could表示过去的能力， 要表示将来具备的能力通常be able to的将来时态。其中要注意的是， could表示过去的能力， 通常只用于表示过去一般性能力，而不表示过去具体某次特定情形下能够做某事的能力。如：他学习很努力，所以考试能及格。误： He studied har

11、d and could pass the exam.正： He studied hard and was able to pass the exam.注：若在否定句中没有以上限制，即couldn t可表示过去特定情况下的能力，如可说He studiedhard but still couldnt pass the exam.口诀：情态动词两特点精品资料欢迎下载动词原形接后面， 说话语气较委婉。 can " 能力 "may" 许可 " ，must" 责任 " 或 " 义务 " 。否定回答 neednt换， "

12、; 需要 "need, dare"敢 " 。should" 应该 " ， would" 愿" ，have to" 被迫 " 表客观。情态动词专项练习题1.- Where is Mary?- She _ in the library.A. should beB. must beC. can beD. must have been2. His room is dark. He must _ to bed.A. goB. be goingC. have goneD. have been gone3.“ Will

13、 your father stay home tonight?“ I m”not sure, He _to work.”A. must goB. can goC. may be goneD. may be going4.“ Where is Tom? ” “ He isn t here I think he _ have gone home.”A. mayB. mustC. mightD. A or B or C5.“ I think Helen is at home.”“ No, she _ be at home, for she phoned me from the airport jus

14、t five minutes ago.”A. mustn tB. needntC. can tD. daren t6. Hes late. What _ have happened to him?A. canB. mayC. shouldD, must7.“ _ he be watching TV now?Yes,” he _ be watching TV now.”No, he _ be watching TV now.”A. Must; can; mustnB.Can;t must; cantC.Must; must; canDt. Can; can; mustnt8.“ _. He ha

15、ve left yesterday?Yes, ”he _ yesterday.No,” he _ yesterday.”A. Must; must have left; can t have Bleft.Can; can have left; can t have leftC. Can; must h ave left; can t have leftD. May; must have left; shouldn t have left9. You must be a writer, _ you?A. mustn tB. areC. mustD. arent10. You must have

16、seen her yesterday, _ you?A. mustn tB. haventC. didn tD. don t11. You must have seen her, _ you?A. haven tB. didnt C. don tD. A or B12. There was plenty of time. She _ worried or hurried.A. mustn t haveB. shouldn t have C. must beD. needn t have精品资料欢迎下载13. I got up early, but I _ so because I had no

17、 work to do that morning.A. mustn t have done B. didn t need to doC. needn t have done D. can t have done14. I _ up early this morning. So I stayed in bed till 9 a. m.A. needn t have gotB. didn t need to getC. shouldn t have gotD. can t have got15. The flower is dead. I _ it more water.A. will giveB

18、. would have givenC. must giveD. should have given16.He _ have come here yesterday, but he didn t.A. couldB. shouldC. ought toD. A or B or C17.“ Must he do it?”“No, he _.”A. mustn tB. needntC. doesn t have toD. B or C18.“ Need you go now?”“ Yes, I _.” “ No, I _.”A. need; needn tB. must; needntC. may

19、; mustn tD. can; neednt19.“ May I borrow your bike?“”No, you _.”A. mustn tB. may notC. had better notD. can t20.“ Can I do it?“”No, you _.” or “ No, please _.”A. can t; doesn tB. can t; dontC.can t; can t D. can t; you dont21. I missed the last bus, so I _ go home on foot.A. mustB. have toC. mayD. h

20、ad to22. We _ hurry if we want to arrive in time.A. mustB. needC. mayD. have to23. He ought to have won the first prize, _ he?A. oughtn tB. shouldntC. mustn tD. oughtn t to24. He _ get up early when he lived in the countryside.A. wouldB. used toC. mustn tD. can t25. My brother _ be very naughty, and my sister _ like reading.A. used to; wouldB. would; used toC. used to; used toD. would; would26. _ you please pass on a message to him?27. _ we set off now?A. ShallB. WillC. WouldD. ought28.“ _ he open