初中英语情态动词专项练习含答案

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

①只做情态动词must,can（could）,may（might）

②可做情态动词又可做实义动词:need,will

③具有情态动词特征have（had,has）to,used to,ought to

④情态动词表猜测一肯一否三不定（must—肯，can not一否，may,might,could,三不定）注mustn，t代表强烈禁止must表示主观，have to表示客观常用的有can maycould must have use.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 the answerto thisquestion.他一定/可能/也许知道这个问题的答案22）It iscold inthe room.They must have turnedoff theheating.屋里很冷，他们肯定把暖气关了

3.否定句中用can t/couldn,t（不可能），may not/might not（可能不）e.g:

（1）It cant/couldn tbe theheadmaster.He hasgone toAmerica.这不可能是校长，他去美国了

（2）He may not/might notknowthescientist.他也许不认识那位科学家

1.Could he have finishedthe 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时态

1.对将来情况的推测，用“情态动词+动词原形”Oe.g:

1.She must/may/might/could arrivebefore

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 belistening tothe radionow.他一定/可能/也许正在听收音机

22.He can,tcouldn,t/maymightnot be at homeat thistime.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”oe.g:

1.It must/may/might/could haverained lastnight.The groundis wet.地湿了，昨晚肯定/可能/也许下雨了

4.It sseven oclock.Jack should/ought tobe hereat anymoment.现在七点钟了，杰克理应随时到达推测

5.Tom shouldnot/ought notto have told meyour secret,but hemeant noharm.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could则可用于肯定句、否定句和疑问句;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 betrue这能是真的吗Where can[could]hehave gone他能到哪里去了呢She can,t[couldn t]have leftso 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 couldhave starteda littleearlier.你本可早点动身的You needn thavecooked it.We couldhave eatenit 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couldo如Can[Could]I comein我可以进来吗“Could[Can]I useyour pen”“Yes,of courseyou 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couldo如When Ilived at home,I couldwatch TVwhenever Iwanted 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 wasallowed tosee thefilm yesterdayevening.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 ableto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 studiedhard andcould passthe exam.正He studiedhard andwas ableto passthe 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 studiedhardbut stillcouldn,t passthe 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 isMary---She inthe library.A.should beB.must beC.can beD.must havebeen

2.His roomis dark.He mustto bed.A.go B.be goingC.have gone D.havebeengone

3.“Will yourfather stayhome tonight”Tm notsure,He towork.^^A.must goB.can goC.may begoneD.may begoing

4.“Where isTom”He isnthere I think hehavegonehome.A.may B.must C.might D.A orB orC

5.“IthinkHelen isathome.”A.mustnt B.neednt C.cant D.darentNo,she beathome,for shephoned mefrom theairport justfive minutesago.”A.mustnt B.havent C.didnt D.dontA.havent B.didnt C.dont D.A orB

11.You must have seenher,youA.mustnt haveB.shouldnt haveC.must beD.neednt have

12.There wasplenty oftime.She worriedor hurried.

13.I gotup early,but Iso becauseI hadno workto dothat morning.A.mustnt havedone B.didnt needto do C.neednt havedone D.cant havedone

14.I up early thismorning.So Istayed inbed till9a.m.A.neednt havegot B.didnt needto getC.shouldnt havegot D.cant havegot

15.The flowerisdead.I itmore water.A.will giveB.would havegiven C.must giveD.should havegiven

16.He havecome hereyesterday,but hedidnt.A.could B.should C.ought to D.A orB orC

17.“Must hedo it”“No,heA.mustnt B.neednt C.doesnt have toD.B orC

18.“Need yougo now”“Yes,I“No,IA.need;neednt B.must;neednt C.may;mustnt D.can;neednt

19.“May Iborrow yourbike”No,youA.mustnt B.maynotC.had betternot D.cant

20.“Can Ido it”No,you.or No,pleaseA.cant;doesnt B.cant;dont C.cant;cant D.cant;you dont

21.I missedthe lastbus,so Igo homeon foot.A.must B.havetoC.may D.had to

22.We hurryif wewant toarrive intime.A.must B.need C.may D.haveto

23.He oughtto havewon thefirst prize,heA.oughtnt B.shouldnt C.mustnt D.oughtnt to

24.He getupearlywhen helived inthe countryside.A.would B.used toC.mustnt D.cant

25.My brotherbe verynaughty,and mysister likereading.A.used to;would B.would;used toC.used to;used toD.would;would

26.you pleasepass ona messageto himA.Do B.Shall C.May D.Will

27.we setoff nowA.Shall B.Will C.Would D.ought

28.he openthe window”Yes,please.A.Does B.will C.Shall D.Would

29.Ive toldhim manytimes,but helisten tomy advice.A.shall notB.wont C.will notD.wouldnt

30.“Will youlend mea hand”Yes,IA.will B.shall C.can D.may

31.Everyone dohis bestfor themodernization ofChina.A.will youB.dont weC.shall weD.do you

32.Lefs cleanour room,A.will youB.dont weC.shall weD.do you

33.Let uswatch TV,A.will youB.dont weC.shall weD.do you

34.Close thedoor afteryou,youA.dont B.doC.shall D.will

35.Every timehe meetsme,he tome.A.smiled B.would smileC.will smileD.is smiling答案6-10ABCDC11-15DDCBD16-20DDBDB1-5BCCDC21-25DDDDC26-30DACDA31-35CCADC

6.Hes late.What havehappened tohimA.can B.may C.should D,must

7.he bewatching TVnow”Yes,he bewatching TVnow.No,he bewatching TVnow.”A.Must;can;mustnt B.Can;must;cant C.Must;must;cant D.Can;can;mustnt

8.“.He haveleft yesterday”Yes,he yesterday/678910No,he yesterday.A.Must;must haveleft;cant haveleft B.Can;can haveleft;cant haveleftC.Can;musthaveleft;cant haveleft D.May;musthaveleft;shouldnthave left

9.You mustbeawriter,youA.mustnt B.are C.must D.arent

10.You musthave seenher yesterday,you。