初中英語(yǔ)情態(tài)動(dòng)詞專項(xiàng)練習(xí)題集

1、 情態(tài)動(dòng)詞情態(tài)動(dòng)詞是一種本身有一定的詞義，但要與動(dòng)詞原形及其被動(dòng)語(yǔ)態(tài)一起使用，給謂語(yǔ)動(dòng)詞增添情態(tài)色彩，表示說話人對(duì)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(dòng)詞后面加動(dòng)詞原形。情態(tài)動(dòng)詞有四類：只做情態(tài)動(dòng)詞：must,can(could),may(might)可做情態(tài)動(dòng)詞又可做實(shí)義動(dòng)詞：need，will具有情態(tài)動(dòng)詞特征：have(had,has) to,used to，ought to情態(tài)動(dòng)詞表猜測(cè)：一肯一否三不定（must一肯，can not一否，may，might，could，三不定。）注：mustn't代表強(qiáng)烈禁止 must表示主觀，have to表示客觀。常用的

2、有：can  may  could  must   have  use  .情態(tài)動(dòng)詞無人稱和數(shù)的變化，情態(tài)動(dòng)詞后面跟的動(dòng)詞須用原形，否定式構(gòu)成是在情態(tài)動(dòng)詞后面加 "not"。個(gè)別情態(tài)動(dòng)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(yǔ)氣，時(shí)態(tài)性不強(qiáng)，可用于過去，現(xiàn)在或?qū)?。情態(tài)動(dòng)詞屬非及物動(dòng)詞，故沒有被動(dòng)語(yǔ)態(tài)。情態(tài)動(dòng)詞表推測(cè)的用法小結(jié)（一）情態(tài)動(dòng)詞表推測(cè)的三種句式1在肯定句中一般用must （一定），can,could（可能），might /ma

3、y（也許，或許）。e.g:(1)he must/can/may,might know the answer to this question.他一定/可能/也許知道這個(gè)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 / 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.這不可能是校長(zhǎng)，他去美國(guó)了。(2

4、)he may not/might not know the scientist.他也許不認(rèn)識(shí)那位科學(xué)家。3疑問句中用can/could （能?）。e.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(dòng)詞的語(yǔ)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(yǔ)氣較為委婉或可能性較小。（二）情態(tài)動(dòng)詞表推測(cè)的三種時(shí)態(tài)1對(duì)將來情況的推測(cè)，用“情態(tài)動(dòng)詞 + 動(dòng)詞原形”。e.g:(1)she must / may / might / could arrive before 5.5:00前她一定/可能/也許

5、到。2對(duì)現(xiàn)在或一般情況的推測(cè)，用“情態(tài)動(dòng)詞 + be”，“情態(tài)動(dòng)詞 +be doing”或“情態(tài)動(dòng)詞 + 動(dòng)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(gè)時(shí)候他不可能/可能不在家。3對(duì)過去情況的推測(cè)，用“情態(tài)動(dòng)詞 + have +過去分詞”。e.g:(1)it must / may / might / could have rai

6、ned last night .the ground is wet.地濕了，昨晚肯定/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(dòng)詞 should /ought to表推測(cè)時(shí)，意為“想必會(huì)，理應(yīng)”但與“have +過去分詞”連用時(shí)，則又可構(gòu)成虛擬語(yǔ)氣意為“本應(yīng)該做某事卻沒做”。例如：(4)its seven oclock. jack should/ought to be here at any moment.現(xiàn)在七

7、點(diǎn)鐘了，杰克理應(yīng)隨時(shí)到達(dá)。（推測(cè)）（5）tom should 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(cè)的用法對(duì)現(xiàn)在或?qū)淼耐茰y(cè)，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(duì)過去的推測(cè)，應(yīng)在 can,could 之后接動(dòng)詞的完成式，且此時(shí)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 this be true

8、? 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(dòng)詞的完成式，除表示對(duì)過去的推測(cè)外，還可表示過去沒有實(shí)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(shí)不用can）。如：you could have started a little earlier. 你本可早點(diǎn)動(dòng)身的。you neednt have cooked it. we could have eaten it raw. 你其實(shí)可以不煮熟（它），我

9、們（本來）可以生吃。can 和could 表示允許的用法表示現(xiàn)在的允許時(shí)，若是請(qǐng)求別人允許自己做某事，兩者均可用，但用could 語(yǔ)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fyes,you could.)表示過去的允許時(shí)，若表示過去一般性允許（即表示某人隨時(shí)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(dòng)，則不用 could

10、。如：when i lived at home,i could watch tv whenever i wanted to. 我住在家里時(shí)，想什么時(shí)候看電影就可以什么時(shí)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(shí)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

11、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 studied hard and could pass the exam.正：he studied hard and was able to pass the exam.注：若在否定句中沒有以上限制，即couldnt 可表示過去特定情況下的能力，如可說 he studied hard but still couldnt pass the exam.口訣：情態(tài)動(dòng)詞兩特點(diǎn)動(dòng)詞原形接后面，說話語(yǔ)氣較委婉。can "能力"may"許可"，must"責(zé)任"或"義務(wù)"

12、。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)動(dòng)詞專項(xiàng)練習(xí)題1. - where is mary? - she _ in the library. a. should be b. must be c. can be d. must have been2. his room is dark. he must _ to bed. a. go b. be going c. have gone d. have be

13、en 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 or c5. “i think helen is at home.” “ no, she _ be at home, for she phoned me

14、 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 watching tv now.” a. must; can; mustnt b. can; must; cant c. must; must; c

15、ant 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; must have left; shouldnt have left9. you must be a writer, _ you? a. mustnt b

16、. 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 hurried. a. mustnt have b. shouldnt have c. must be d. neednt have13. i got up

17、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. didnt need to get c. shouldnt have got d. cant have got15. the flower is dead.

18、 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. neednt c. doesnt have to d. b or c18. “need you go now?” “yes, i _.” “no,

19、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. cant; dont c. cant; cant d. cant; you dont21. i missed the last bus, so i _

20、 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 to24. he _ get up early when he lived in the countryside. a. would b. used to

21、 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. will27. _ 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