初中情态动词用法总结,练习含答案

专项：情态动词一考点：情态动词的用法和辨析，情态动词表示推测和可能，由情态动词引导的一般疑问句的回答。二类型：1只是情态动词：can,could,may,might,must2可做情态动词，可做实义动词：need,dare3可做情态动词，可做助动词：will,would,shall,should4特殊：haveto,oughtto,usedto三特征：1有一定的词义，但不能单独作谓语，必须与行为动词和系动词连用构成谓语。2无人称和数的变化。（haveto除外） Eg:Hehastostayhere.3后接动词原形。4具有助动词作用，可构成否定，疑问或简短回答。四用法：1.can①表示能力，“能，会”。Eg:Canyouplaybasketball?②表示怀疑，猜测，常用于否定句或疑问句。 Eg:Lihuacan'tbeintheclassroom.③表示请求，允许，多用于口语，译“可以”二may.Eg:youcangonow.@can开头的疑问句，肯定句，否定句用can或can't.①can的过去式，表示过去的能力。 Eg:IcouldswimwhenIwassevenyearsold.②could开头的疑问句，肯定和否定回答用could,couldn't如果could表示现在的委婉，用can回答。Eg:CouldIhaveadrink?Yes,youcan.①表示推测，“可能，也许"，用于肯定句。 Eg:Hemaycometomorrow.②表示请求，“许可，可以“。Eg:MayIborrowyourbook?注：表示请求，许可时，主语为第一人称的一般疑问句，否定回答用

mustn't"不可以，禁止，不许"，不用maynot“可能不”。③表示祝愿。Eg:Mayyousuccess.①表示“可以”，用于过去时中。Eg:HetoldmeImightsmokeintheroom.②用于现在时，表示说话更委婉，礼貌。Eg:Hemightbedoinghislessons②用于现在时，表示说话更委婉，礼貌。Eg:Hemightbedoinghislessonsnow.①表示“必须，应该”。②表示推测，常用在肯定句中，表“一定”。 Eg:Thereissomeoneknockingatthedoor.ItmustbeJim.③否定句中，mustn't表示禁止，“不允许”。④以must开头的疑问句，肯定句回答用must,否定回答用needn’t,表示“不需要，不必”:"don’thaveto”.⑤表示“偏偏”。Eg:Mustyouplaythepianoatthistime.①情态动词：+do,用need提问或回答，肯定句回答用must,否定句回答用needn't.Eg:Youneedn'tcometoschoolsoearly.②实义动词：+todo，用助动词提问和否定。③+doing表示被动。④needn'thavedone表示没必要做某事但是做了。Eg:Iactuallyneedn’thaveboughtsomuchwine.①情态动词，多用于疑问句，否定句，条件句中。Eg:I’mafraidyoudarenottodosuchathing.注：Idaresay习惯说成“也许，我想”。Eg:Itwillrainthisafternoon,Idaresay.②实义动词：daretodo，用于肯定句中，当用于否定句或疑问句时，to可以省略。Eg:Thisstudentdoesn'tdaretoraiseanyquestioninclass.①用于第一人称表示征求意见，询问。Eg:ShallIopenthewindow?Shallwehavelunchhere?②表示说话人的态度，”命令，警告，允诺，威胁”。Eg:Youshallfinishyourhomeworkfirst.③用于第三人称，在条约，规定，法令等文件中表示义务或规定，”应该，必须”。（不常用）①表示义务，责任“应该”。Eg:Weshouldobeytrafficlaws.②作为shall过去式，用于第一三人称，表示征求意见。Eg:MrLeeaskedifheshouldgethisvisa.③表示“竟然"。 Eg:It’sunthinkablethattheboyshouldsingsuchabeautifulsong.④表示说话人的特殊情感，如惊奇，愤怒，失望等。 Eg:HowshouldIknow?⑤表示劝告，建议，“应该”。 Eg:Youshouldlistentoyourteacher.①用于第二人称表示询问，请求，也可以表达现在的“意愿”。Eg:Willyoupassmethebook?②表示意愿，决定，允诺，用于各种人称。Eg:Iwilltrymybesttohelpyou.③表示规律性的“注定会”。 Eg:Peoplewilldiewithoutairorwater.①表示过去的意愿或委婉询问。 Eg:Wouldyoutellmethewaytothestation?to①“必须，不得不”，强调客观需要，含有时态的变化。 Eg:I'llhavetoaskJiminstead.②区别：must表示“必须，应该“，主观看法。to①表示职责，义务或要求，及人们应该去做的正确的事或好事。Eg:Humansoughttostoppollutingnature.②比should语气强，oughtto反映客观情况，should表示主观看法。③oughttohavedone本应该做而没有做。Eg:Youarelate.Yououghttohavearrivedfiveminutesearlier.to①表示“过去常常，过去是“，没有人称和数的变化，可以和过去的时间状语连用。否定形式：usedn'tto或didn’tuseto，疑问词将use提前或Did…useto…？Eg:Hedidn'tusetobesocareless.②区别would:带有主观性，并且现在做不做不知道。Usedto:客观性，和现在进行对比，过去常常，现在就不怎么做了。Eg:HewouldphonemeonSunday.Eg:IusedtobeveryfondofmusicwhenIwasyoung.③区别：beusedtodoing（情态动词）习惯于…Usedtodo（情态动词）过去是，过去常常…Beusedtodo（过去式）被用来做…

MyparentsusedtoliveinEg:Iamalreadyusedtonoisycitylifehere.MyparentsusedtoliveinSouthAmerica.Thismachineisusedtocutupwastepaper.15.其他15.其他:⑴hadbetterdo最好做某事Eg:Youhadbetterstayathome.否定：hadbetternotdo⑵beableto与can表示能力时用法相同，但前者有时态的变化，有能力成功做某事。notdo⑵beableto与can表示能力时用法相同，但前者有时态的变化，有能力成功做某事。Eg:Wewillbeabletocomebacknextweek.完形填空Haveyoueverseentheadvertisement:Learnaforeignlanguageinsixweeks,1giveyourmoneyback?Ofcourse,it2happensquitelikethat.Theonlylanguagetolearnisthemotherlanguage.Andthink4practiceisneededforthat.BeforetheSecondWorldWarpeopleusuallylearnedaforeignlanguage5theliterature文学)ofthecountry.Nowmostpeoplewantto6aforeignlanguage.Everyyearmillionsofpeoplestartlearning7Howdotheydoit?Somepeopletryathome8booksandtapes,othersgotoeveningclassesorwatchTVprograms.9theyusethelanguageonly2or3timesaweek,learningitwill10alongtime,likelanguagelearningatschool.Afewpeopletrytolearnalanguagefastbystudyingfor6or11hoursaday.It,smucheasiertolearnthelanguageinthecountrywhereit12 .Butmostpeopleare13todothis,andmanypeopledon,thavetodoso.Machinesandgoodbookswillbevery14,buttheycannotdothestudents,work.15thelanguageisHaveyoueverseentheadvertisement:Learnaforeignlanguageinsixweeks,1giveyourmoneyback?Ofcourse,it2happensquitelikethat.Theonlylanguagetolearnisthemotherlanguage.Andthink4practiceisneededforthat.BeforetheSecondWorldWarpeopleusuallylearnedaforeignlanguage5theliterature文学)ofthecountry.Nowmostpeoplewantto6aforeignlanguage.Everyyearmillionsofpeoplestartlearning7Howdotheydoit?Somepeopletryathome8booksandtapes,othersgotoeveningclassesorwatchTVprograms.9theyusethelanguageonly2or3timesaweek,learningitwill10alongtime,likelanguagelearningatschool.Afewpeopletrytolearnalanguagefastbystudyingfor6or11hoursaday.It,smucheasiertolearnthelanguageinthecountrywhereit12 .Butmostpeopleare13todothis,andmanypeopledon,thavetodoso.Machinesandgoodbookswillbevery14,buttheycannotdothestudents,work.15thelanguageislearnedquicklyorslowly,itishardwork.)1.A.soB.orC.andD.but)2.A.can'tB.impossibleC.never( )3.A.easilyB.difficultC.ableD.easy( )4.A.howmuchB.howlong C.howfast D.how( )5.A.studiedB.tostudy C.studying D.study( )6.A.talkB.tellC.speakD.sayD.oftenmany( )7.A.themB.thisC.thatD.itD.itinD.by()9.A.IfB.When C.SinceD.Until( )10.A.spendB.use C.takeD.cost( )11.A.someB.more C.otherD.less( )12.A.speaksB. is speaking C.spokeD.isspoken()13.A.ableB.possible C.unableD.notpossible( )14.A.carefulB.forgetful C.wonderful D.helpful( )15.A.eitherB. whether C.whatD.how( )8.A.withoutB.withC.专题练习：一.选择题ItisusuallywarminmyhometowninMarch,butitberathercoldsometimes.A.must B.can C.should D.wouldYoubehungryalready youhadlunchonlytwohoursago!A.wouldn'tB.can'tC.mustn't D.needn't Whatdoyouthinkwecandoforouragedparents? Youdoanythingexcepttobewiththemandbeyourself.A.don'thavetoB.oughtn'ttoC.mustn't D.can'tJohnpromisedhisdoctorhenotsmoke.Andhehasneversmokedeversince.A.mightB.shouldC.could D.wouldWhatapity!Consideringhisabilityandexperience,hebetter.A.needhavedoneB.musthavedoneC.canhavedoneD.mighthavedoneLizawellnotwanttogoonthetrip shehatestraveling.A.willB.canC.mustD.mayShehaveleftschool,forherbikeisstillhere.A.can'tB.wouldn'tC.shouldn'tD.needn'tAccordingtotheairtrafficrules,youswitchoffyourmobilephonebeforeboarding.A.may B.can C.would D.should Ican'tfindmypurseanywhere. Youhavelostitwhileshopping.A.mayB.can C.should D.would I’msorry.Iatyoutheotherday. Forgetit.Iwasabitoutofcontrolmyself.A.shouldn'tshoutB.shouldn'thaveshoutedC.mustn'tshoutD.mustn'thaveshouted Whatsortofhousedoyouwanttohave?Somethingbig? Well,itbebig that'snotimportant.A.mustn't B.needn't C.can't D.won't Whatdoesthesignoverthereread? “Nopersonsmokeorcarryalightedcigarette,cigarorpipeinthisarea.”A.will B.mayC.shall D.mustSomeaspectsofapilotsjobbebring;andpilotsoftenworkatinconvenient.A.can;havetoB.may;can C.haveto;mayD.oughtto;mustMyMP4playerisn'tinmybag.WhereIhaveputit?A.canB.mustC.shouldD.wouldTheweatherturnedouttobefineyesterday,Ithetroubletocarrymyumbrellawithme.A.shouldhavetakenB.couldhavetakenC.needn'thavetakenD.mustn'thavetakenIncrowdedplaceslikeairportsandrailwaystations,youtakecareofyourluggage.A.can B.may C.must D.will Shelooksveryhappy.Shehavepassedtheexam. Iguessso.Itsnotdifficultafterall.A.should B.could C.must D.mightItoldyourfriendhowtogettothehotel,butperhapsIhavedrivenherthere.

A.couldB.mustC.mightD.shouldA.couldB.mustC.mightD.should Mr.Gordonaskedmetoremindyouofthemeetingthisafternoon.Dorftforgetit! OK,I.A.won't B.don't C.can'tD.needn't HowisyourtouraroundtheNorthLake?Isitbeautiful? Itbe,butitisnowheavilypolluted.A.will B.would C.shouldD.mustjustgetupandrunawaywhenThebiggestproblemformostplants,whichjustgetupandrunawaywhenthreatened,isthatanimalsliketoeatthem.A.shan't B.can't C.needn't D.mustn't Whereismydictionary?IrememberIputithereyesterday. Youitinthewrongplace.A.mustputB.shouldhaveputC.mightputD.mighthaveputneedn'thaveleft What'sthename? Khulaifi. What'sthename? Khulaifi.A.Shall B.WouldC.CanWhoisthegirlstandingoverthere?nameisMabel.Ispellthatforyou?D.Might Well,ifyouknow,herA.mayB.canC.m