初中英語情態(tài)動詞專項練習(xí)題

1、情態(tài)動詞情態(tài)動詞是一種本身有一定的詞義， 但要與動詞原形及其被動語態(tài)一起使用， 給謂語動詞增添情態(tài)色彩，表示說話人對有關(guān)行為或事物的態(tài)度和看法，認(rèn)為其可能、應(yīng)該或必要等。情態(tài)動詞后面加動詞原形。情態(tài)動詞有四類：只做情態(tài)動詞： must,can(could),may(might)可做情態(tài)動詞又可做實義動詞：need，will具有情態(tài)動詞特征：have(had,has) to,used to， ought to情態(tài)動詞表猜測：一肯一否三不定（must 一肯， can not一否， may， might ，could ，三不定。）注： mustnt代表強(qiáng)烈禁止 must 表示主觀， have to

2、表示客觀。常用的有： canmaycouldmusthaveuse.情態(tài)動詞無人稱和數(shù)的變化，情態(tài)動詞后面跟的動詞須用原形，否定式構(gòu)成是在情態(tài)動詞后面加 not 。個別情態(tài)動詞有現(xiàn)在式和過去式兩種形式，過去式用來表達(dá)更加客氣，委婉的語氣，時態(tài)性不強(qiáng)，可用于過去，現(xiàn)在或?qū)?。情態(tài)動詞屬非及物動詞，故沒有被動語態(tài)。情態(tài)動詞表推測的用法小結(jié)（一）情態(tài)動詞表推測的三種句式1在肯定句中一般用 must （一定）， can,could （可能）， might /may （也許，或許）。 e.g:(1)He must/can/may,might know the answer to this questio

3、n.他一定 / 可能 / 也許知道這個問題的答案。(2)It is cold in the room. They must have turned off the heating.屋里很冷，他們肯定把暖氣關(guān)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.這不可能是校長，他去美國了。(2)He may not/might not know the scientist.他也許不認(rèn)識那位科學(xué)家。3疑問句

4、中用 can/could（能 ?）。1e.g:(1)Could he have finished the task?他可能把任務(wù)完成了嗎？注：以上三種句式中情態(tài)動詞的語氣按程度都是依次遞減的。Might,could并非 may,can 的過去式，而表示語氣較為委婉或可能性較小。（二）情態(tài)動詞表推測的三種時態(tài)1對將來情況的推測，用“情態(tài)動詞+ 動詞原形 ”。e.g:(1)She must / may / might / could arrive before 5.5:00 前她一定 / 可能 / 也許到。2對現(xiàn)在或一般情況的推測，用“情態(tài)動詞+ be ”，“情態(tài)動詞+be doing ”或“情態(tài)

5、動詞+動詞原形”。e.g:(1)He must / may / might / could be listening to the radio now.他一定 / 可能 / 也許正在聽收音機(jī)。(2) He cant ( couldnt ) / may ( might ) not be at home at this time.這個時候他不可能 / 可能不在家。3對過去情況的推測，用“情態(tài)動詞+ have + 過去分詞”。e.g:(1)It must / may / might / could have rained last night .The ground is wet.地濕了，昨晚肯定

6、/ 可能 / 也許下雨了。(2) The door was locked. He can ( could ) not / may ( might ) not have been at home .門鎖著，他不可能 / 可能不在家。注：情態(tài)動詞 should /ought to表推測時，意為“想必會，理應(yīng) ”但與“have + 過去分詞”連用時，則又可構(gòu)成虛擬語氣意為“本應(yīng)該做某事卻沒做”。例如：(4) It s seven o clock. Jack should/ought to be here at any moment.現(xiàn)在七點鐘了，杰克理應(yīng)隨時到達(dá)。（推測）（ 5） Tom shoul

7、d not /ought not to have told me your secret,but he meant no harm.（虛擬）湯姆本不該告訴我你的秘密，可是他并無惡意。can 和 could表示推測的用法2You could have started a little earlier.對現(xiàn)在或?qū)淼耐茰y，兩者均可用，但can 通常只用于否定句或疑問句中，一般不用于肯定句，而could 則可用于肯定句、否定句和疑問句；對過去的推測，應(yīng)在can,could之后接動詞的完成式，且此時 can 仍只用于否定句或疑問句，不用于肯定句；而could則可用于各種句型。如：Can Could t

8、his be true?這能是真的嗎Where can could he have gone?他能到哪里去了呢She cant couldnt have left so soon.她不可能走得這么早。注： could 后接動詞的完成式，除表示對過去的推測外，還可表示過去沒有實現(xiàn)的可能性（即某事本來可以發(fā)生，卻沒發(fā)生），或委婉地責(zé)備某人過去應(yīng)該做某事而沒有去做（此時不用can）。如：你本可早點動身的。You neednt have cooked it. We could have eaten it raw.你其實可以不煮熟（它），我們（本來）可以生吃。can 和 could表示允許的用法表示現(xiàn)在

9、的允許時，若是請求別人允許自己做某事，兩者均可用，但用could語氣更委婉；若是自己允許別人做某事，一般只用can ，而不用 could 。如：Can Could I come in?我可以進(jìn)來嗎“Could Can I use your pen? ” “Yes,of course you can. ” “我可以借用你的鋼筆嗎 ?”“當(dāng)然可以?！保ú荒苷f Yes,you could.)表示過去的允許時，若表示過去一般性允許（即表示某人隨時都可以做某事），用could ；若表示在過去某一特定情況下允許進(jìn)行某一特定的活動，則不用could 。如：When I lived at home,I cou

10、ld watch TV whenever I wanted to.我住在家里時，想什么時候看電影就可以什么時候看。（一般性允許）I was allowed to see the film yesterday evening.昨天晚上允許我去看了電影。（特定的允許，不能用 could)can 和 could表示能力的用法can 表示現(xiàn)在的能力， could表示過去的能力， 要表示將來具備的能力通常be able to的將來時態(tài)。其中要注意的是， could表示過去的能力， 通常只用于表示過去一般性能力，而不表示過去具體某次特定情形下能夠做某事的能力。如：他學(xué)習(xí)很努力，所以考試能及格。誤： He

11、studied hard and could pass the exam.正： He studied hard and was able to pass the exam.3注：若在否定句中沒有以上限制，即couldn t可表示過去特定情況下的能力，如可說He studiedhard but still couldnt pass the exam.口訣：情態(tài)動詞兩特點動詞原形接后面， 說話語氣較委婉。 can 能力 may 許可 ，must 責(zé)任 或 義務(wù) 。否定回答 neednt換， 需要 need, dare敢 。should 應(yīng)該 ， would 愿 ，have to 被迫 表客觀。情態(tài)

12、動詞專項練習(xí)題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 your father stay home tonight?“ I m”not sure, He _to work.”A. must goB. can goC. may be goneD. may be going4.“ W

13、here 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 just five minutes ago.”A. mustn tB. needntC. can tD. daren t6. He s late. What_ have happened to him?A. canB. mayC.

14、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 have left yesterday?Yes, ”he _ yesterday.No,” he _ yesterday.”A. Must; must have left; can t have Bleft.Can; can ha

15、ve left; can t have leftC. Can; must have left; ca n 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 seen her yesterday, _ you?A. mustn tB. havent C. didn tD. don t411. You must have seen her, _ you?A. haven tB. di

16、dnt 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 have13. I got up early, but I _ so because I had no 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 ear

17、ly 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. would have givenC. must giveD. should have given16.He _ have come here yesterday, but he didn t.A. couldB. shouldC. o

18、ught 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; mustn tD. can; neednt19.“ May I borrow your bike?“”No, you _.”A. mustn tB. may notC. had better notD. cant20.“ Can I

19、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. had to22. We _ hurry if we want to arrive in time.A. mustB. needC. mayD. have to23. He ought to have won the first prize,

20、 _ 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?A. DoB. ShallC. MayD. Will527. _ we set off now?A. ShallB. WillC. WouldD. ought28.“ _ he open the window