情态动词用法专项练习及解析

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1、情态动词专项练习1.Jeanhavekepthispromise.Iwonderwhyhechangedhisidea.A.mustB.shouldC.needD.would解析：选B.“shouldhave+过去分词”表示“过去本来应该(但没能)做某事”；keepone’spromise意为“信守诺言”。2.Janehavecometotheparty,butshenotfindtheexacttime.A.could;couldB.might;couldC.should;couldD.should;would解析：选A.“couldha

2、ve+过去分词表示过去本来应该(但没能)做某事”。3.Somanymistakesinyourhomework!Youmorecareful.A.maybeB.hadtoC.wouldbeD.shouldhavebeen解析：选D.“Youshouldhavebeenmorecareful”.意为：你本来应该更细心的。4．Herbrotherbeathomenow,becausehewasseenplayingbasketballinthestadiumjustnow.A.mustn’tB.needn’tC.can’tD.shouldn't

3、解析：选C.can’tbeathome意为：不可能在家。5．---Ican’tunderstandwhyourbossislate.---Hetheearlybus.A.couldmissB.mayhavemissedC.canhavemissedD.mightmiss解析：选B.“mayhave+过去分词”表示对过去动作的判断，意为：可能做了某事。注意：can表示可能时，只能用于疑问句和反问句。6.Shedidn'tanswerthephone,she______asleep.A.maybeB.mustbeC.shouldhavebeen

4、D.musthavebeen解析：选D.表示：对过去发生的事情的肯定推测。7．Thelittlegirl’seyeswerered.She______.A.maycryB.mustcryC.mustbecriedD.musthavebeencrying解析：选D.意为：她刚才肯定一直在哭。对过去某事正发生的推测。8．He______hissuppernow,forthedininghallisstillclosed.A.can’tbehavingB.needn’tbehavingC.mustn’tbehavingD.shouldn'tbeh

5、aving解析：选A.对现在正在发生的事情的否定推测。9．Iparkedmybikebehindthebuilding,butnowitisgone.It________.A.maybestolenB.mustbestolenC.musthavebeenstolenD.musthavestolen解析：选C.对过去发生的事情的肯定推测的被动式。10.______Mr.Black_______gotoworkbyferrybeforethebridgewasbuilt?A.Did;usedtoB.Use;toC.Did;usetoD.Does

6、;useto解析：选C.usedtodo的疑问式，可以是Used+主语+todo?或Did+主语+usetodo?11.Thehotelisonlyastone’sthrowaway,you______takeabus.A.neednottoB.notneedtoC.don'tneedD.neednot解析：选D.说话人认为不必要乘车,need为情态动词。12.Iambusynow,_______mybrotherdoitforyou?A.WillB.ShallC.MustD.May解析：选B.在疑问句中shall用于第三人称，也表示征求意

7、见。13.---Youneedn’tdoitrightnow,needyou?---YesIamafraidI______.A.needB.needn’tC.mustD.mustn’t解析：选C.Yes的意思是：不。意为：恐怕我必须现在就做。14.MyEnglish-Chinesedictionaryhasdisappeared.Who_____havetakenit?A.shouldB.mustC.couldD.would解析：选C.could/canhavedone用于否定推测和疑问推测。15.---Theroomissodirty._

8、______wecleanit?----Ofcourse.A．WillB.ShallC.WouldD.Do解析：选B.shall用在疑问句中，常用于第一，三人称，表示征求意见或请