高中英语语法精讲之情态动词3

情态动词练习情态动词can/couldwill/wouldmay/mightmustshallshouldneedoughtto/havetodare基本用法1.情动+动词原形hadbetter2.没有人称和数的变化(除“haveto”外).3.否定式:+notoughtnottocancould1.表“能力”（体力,脑力或技术)Canyouliftthisheavybox?Icouldn’tunderstandwhathesaidatall.2.表“许可”“建议,请求”Youcanuseadifferentmaterialinstead.Couldyouhelpmecarrythebox?3.表“推测”“可能性”No,no,itcan’tbetrue.Whatonearthcanthismean?can与could用法对比Wethoughtthestorycouldn’tbetrue./Howcouldyoubesocareless?4.can’t\couldn’t+have+P.P表示对过去的否定推测他不可能去过那个小镇。Hecouldn’thavebeentothattown.她不可能做这样愚蠢的事.Shecan’thavedonesuchafoolishthing.Hecouldhavefinishedthetaskontime,buttheheavysnowcame.5.could+have+P.P:表示本来能做得到,但事实上未做到.6.Can+have+done：一般用在疑问句中表推测1.Youdon’thavetoknowthenameoftheauthortofindabook.You___findthebookbythetitle.(08湖南）A.mustB.needC.canD.would2.Peter____bereallydifficultattimeseventhoughhe’sanicepersoningeneral.(08辽宁）A.shallB.shouldC.canD.must3.Ifitwerenotforthefactthatshe____sing,Iwouldinvitehertotheparty.A.couldn’tB.shouldn’tC.can’tD.mightnot1.----Ican’tfindmypurseanywhere(08重庆）----You_____havelostitwhileshopping.A.mayB.canC.shouldD.would3.Liza______wellnotwanttogoonthetrip----shehatestraveling.(08全国卷II）A.willB.canC.mustD.may1.Becareful,youmightbreaktheglass.2.Hemaybebusygettingreadyforhistrip.a.may(might)+V.表示对现在或将来事情的猜测.(might比may可能性更小一些.)Hemay(might)haveplayedelectricgameonTVthewholenight.(Forhelooksverysleepy.)b.may(might)+have+P.P,表示对过去事情的猜测,认为某事“可能”发生.(might比may更含蓄,或更不肯定.)1.-----Ihearyou’vegotasetofvuluableAustraliancoins.______ihavealook-----Yes,certainly.(02北京）A.doB.mayC.shallD.should2.-----AreyoucomingtoJeff’sparty-----I’mnotsure.i______gototheconcertinstead.（00全国）A.mustB.wouldC.shouldD.might3.Helen____goonthetripwithus,butsheisn’tquitesureyet.(05安徽）A.shallB.mustC.mayD.can1.Theteacher____havethoughtJohnsonwasworthitorshewouldn’thavewastedtimeonhim,Isuppose.(07安徽）A.shouldB.canC.wouldD.must2.Incrowdedplaceslikeairportsandrailwaystations,You____takecareofyourluggage.(07北京）A.canB.mayC.mustD.willmust与haveto用法对比musthaveto1.表必须(主观看法)必须;没有过去式,可用于间接引语中.HetoldmeImustdoaccordingtowhathesaid.(客观需要)不得不;有多种时态.-It’srainingheavily,wecan’tgonow.-Ithinkwe’llhavetowaittilltherainstops.2.疑问句及答语中MustI…?Yes,youmust.(一定)No,youneedn’t.No,youdon’thavetoDoyouhavetogotoday?Yes,wedo.否定句:Youdon’thavetoworryaboutthat.①Youmustbehungrynow,_________?=I’msureyouarehungrynow.②HemustbewatchingTVnow,______?=I’msureheiswatchingTVnow.③Tommusthavelivedhereforalongtime,_______?=I’msureTomhaslivedhereforalongtime.④Shemusthavearrivedyesterday,__________?=I’msureshearrivedyesterday.*陈述部分的must表示“一定”,“想必”等推测意义时,要根据陈述部分的不定式结构,在附加疑问部分采用与其相适应的主动词或助动词形式.aren’tyouisn’thehasn’thedidn’tshe1.----MayIsmokehere-----Ifyou_____,chooseaseatinthesmokingsection.(06山东）A.ShouldB.couldC.mayD.must2.He____havecompletedhiswork;otherwise,hewouldn’tbeenjoyinghimselfbytheseaside.A.shouldB.mustC.wouldn’tD.can’t3.Tom,you______leaveallyourclothesonthefloorlikethis!(05河南）A.wouldn’tB.mustn’tC.needn’tD.maynot1.---I’msorry.I___atyoutheotherday.(08江苏）---Forgetit.Iwasabitoutofcontrolmyself.A.shouldn’tshoutB.shouldn’thaveshoutedC.mustn’tshoutD.mustn’thaveshouted2.--whatdoesthesignoverthereread--”Noperson_______smokeorcarryalightedcigarette,cigarorpipeinthisarea.”(07四川）A.willB.mayC.shallD.mustshould与shall用法对比shouldshall1.表“应当”表示劝告,建议Youshouldlistentothedoctor’sadvice.2.表可能的猜测Theyshouldgethomebynow.作情态动词,用于第一、三人称表示征求对方意见或请求Shallwebeginourlesson?Shallhegooutforawalk?用于第二、三人称，表示允诺、警告、威胁、命令、决心等。Youshallhaveanicepresentforyourbirthday.(允诺)1.Ithasbeenannouncedthatcandidates________remainintheirseatsuntilallthepapershavebeencollected.(02上海）A.canB.willC.mayD.shall2.----Writetomewhenyougetthere.----________.(01北京）A.ImustB.ishouldC.iwillD.ican3.---Theroomissodirty._____wecleanit---Ofcourse.A.willB.shallC.wouldD.do1.----Idon’tmindtellingyouwhatIknow.-----You_________,I’mnotaskingyouforit.(04江苏）A.mustn’tB.maynotC.can’tD.needn’t2.Iwonderhowhe__thattotheteacher.（95上海）A.daretosayB.daresayingC.notdaresayD.daredsay3.Youdon’t_____togothereifyouhavenotime.(97上海）A.needB.wantC.mustD.oughtNeed与dare用法对比needdare1.情态动词+V*疑问式*否定式Heneednot(needn’t)go.Needwedoitagain?No,youneedn’tdoitagain.Dareshegooutaloneatnight?HowdareyousayIamunfair?Hedarenotsayso.2.need/dare+todo*肯定式*否定式*疑问式Heneedstogo.Hedoesn’tneedtogo.Doesheneedtodoitagain?Hedarestosay.Hedoesnotdare(to)say.Ifyoudaretojumpintothewaterfromhere,sodareI.1.Althoughthis_____soundlikeasimpletask,greatcareisneeded.(08四川）A.mustB.mayC.shallD.should2.MyEnglish-Chinesedictionaryhasdisappeared.Who_________havetakenitA.shouldB.mustC.couldD.would3.Accordingtotheairtrafficrules,you____switchoffyourmobilephonebeforeboarding.(08上海）A.mayB.canC.wouldD.should4.You___behungryalready---youhadlunchonlytwohourago!(08浙江）A.wouln’tB.can’tC.mustn’tD.needn’t5.ItisusuallywarminmyhometowninMarch,butit______berathercoldsometimes.(08福建）A.mustB.canC.shouldD.would6.----Whatsortofhousedoyouwanttohave?Somethingbig?(08陕西）----well,it_____bebig---that’snotimportant.A.mustn’tB.needn’tC.can’tD.won’t7.MyMP4playerisn’tinmybag,where____ihavePutit(07福建）A.canB.mustC.shouldD.would