初中英语情态动词专项练习(共6页).doc

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1、精选优质文档-倾情为你奉上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：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：mustnt代表强烈禁止 must表示主观，have to表示客观。常用的有

2、：canmaycouldmust haveuse.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，故没有。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 the answer to this question.他一定/可能/也许知道这个问题的答案。(2)I

3、t 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 / couldnt（不可能），may not/might not（可能不）。e.g:(1)It cant/couldnt 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 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

4、 finished the task?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1对将来情况的推测，用“情态动词 + ”。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，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 l

5、istening 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 +”。e.g:(1)It must / may / might / could have rained last 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 (

6、 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，则又可构成意为“本应该做某事却没做”。例如：(4)Its seven oclock. Jack should/ought to be here at any moment.现在七点钟了，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

7、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could则可用于、和；对过去的推测，应在 can,could 之后接动词的完成式，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：Can Could this be true? 这能是真的吗Where can could he have gone? 他能到哪里去了呢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

8、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 c

9、ome 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 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 th

10、e 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 hard and could pass the exam.正：He studied hard and was able to pass the exam.注：

11、若在否定句中没有以上限制，即couldnt 可表示过去特定情况下的能力，如可说 He studied hard but still couldnt pass the exam.口诀：情态动词两特点动词原形接后面，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，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 be B. must be C. can be D. must have been2. Hi

12、s room is dark. He must _ to bed. A. go B. be going C. have gone D. have been gone3. “Will your father stay home tonight?” “Im not sure, He _to work.” A. must go B. can go C. may be gone D. may be going4. “Where is Tom?” “He isnt here I think he _ have gone home.” A. may B. must C. might D. A or B o

13、r C5. “I think Helen is at home.” “ No, she _ be at home, for she phoned me from the airport just five minutes ago.” A. mustnt B. neednt C. cant D. darent6. Hes late. What _ have happened to him? A. can B. may C. should D, must7. “ _ he be watching TV now?” Yes, he _ be watching TV now.” No, he _ be

14、 watching TV now.” A. Must; can; mustnt B. Can; must; cant C. Must; must; cant D. Can; can; mustnt8. “_. He have left yesterday?” Yes, he _ yesterday.” No, he _ yesterday.” A. Must; must have left; cant have left B. Can; can have left; cant have left C. Can; must have left; cant have left D. May; mu

15、st have left; shouldnt have left9. You must be a writer, _ you? A. mustnt B. are C. must D. arent10. You must have seen her yesterday, _ you? A. mustnt B. havent C. didnt D. dont11. You must have seen her, _ you? A. havent B. didnt C. dont D. A or B12. There was plenty of time. She _ worried or hurr

16、ied. A. mustnt have B. shouldnt have C. must be D. neednt have13. I got up early, but I _ so because I had no work to do that morning. A. mustnt have done B. didnt need to do C. neednt have done D. cant have done14. I _ up early this morning. So I stayed in bed till 9 a. m. A. neednt have got B. did

17、nt need to get C. shouldnt have got D. cant have got15. The flower is dead. I _ it more water. A. will give B. would have given C. must give D. should have given16. He _ have come here yesterday, but he didnt. A. could B. should C. ought to D. A or B or C17. “Must he do it?” “No, he _.” A. mustnt B.

18、 neednt C. doesnt have to D. B or C18. “Need you go now?” “Yes, I _.” “No, I _.” A. need; neednt B. must; neednt C. may; mustnt D. can; neednt19. “May I borrow your bike?” “No, you _.” A. mustnt B. may not C. had better not D. cant20. “Can I do it?” “No, you _.”or “No, please _.” A. cant; doesnt B.

19、cant; dont C. cant; cant D. cant; you dont21. I missed the last bus, so I _ go home on foot. A. must B. have to C. may D. had to22. We _ hurry if we want to arrive in time. A. must B. need C. may D. have to23. He ought to have won the first prize, _ he? A. oughtnt B. shouldnt C. mustnt D. oughtnt to

20、24. He _ get up early when he lived in the countryside. A. would B. used to C. mustnt D. cant25. My brother _ be very naughty, and my sister _ like reading. A. used to; would B. would; used to C. used to; used to D. would; would26. _ you please pass on a message to him? A. Do B. Shall C. May D. Will

21、27. _ we set off now? A. Shall B. Will C. Would D. ought28. “_ he open the window?” Yes, please.” A. Does B. will C. Shall D. Would29. Ive told him many times, but he _ listen to my advice. A. shall not B. wont C. will not D. wouldnt30. “Will you lend me a hand?” “Yes, I _.” A. will B. shall C. can

22、D. may31. Everyone _ do his best for the modernization of China. A. will you B. dont we C. shall we D. do you32. Lets clean our room, _? A. will you B. dont we C. shall we D. do you33. Let us watch TV, _? A. will you B. dont we C. shall we D. do you34. Close the door after you, _ you? A. dont B. do C. shall D. will35. Every time he meets me, he _ to me. A. smiled B. would smile C. will smile D. is smiling答案1-5 BCCDC 6-10 ABCDC 11-15 DDCBD 16-20 DDBDB21-25 DDDDC 26-30 DACDA 31-35 CCADC 专心-专注-专业