情态动词表推测

HebeCurnane!Hebethinking.Hebeacommonboy.mustmightcan’t常用于表推测的情态动词willwouldoughttoshould（一定）（可能）（很有可能）（很有可能）（应该，很有可能）（应该，很有可能）（可能）（可能）（可能）推测最强最弱mustmightcancouldmay表推测的三种句式---1.肯定句Thelightison,sosomebody_____beathome.mustThelightison,somysister___________beathome.may/might在肯定句中一般用must（一定）,may/might（可能）语气逐渐减弱。常用于表否定推测的情态动词（禁止,不许）（可能）（肯定不,不可能）（肯定不,不可能）（可能不）否定推测最强最弱mustnotmightnotcan’tcouldn’tmaynot（不用于推测）如表示“一定不、肯定不”的意思时，应用can`t,如询问某种可能时，应用can。Hemustknowmyaddress.他肯定知道我的地址。（一定）Hecan'tknowmyaddress.他肯定不知道我的地址。（一定不）Canheknowmyaddress?他知道我的地址吗？（询问可能性）must表推测只能用于肯定句It’ssunny.It______rain.can’t表推测的三种句式---2.否定句在否定句中用can’t/couldn’t(不可能)，maynot/mightnot(可能不)。He______________knowhowtoanswerthisquestion./mightnotmaynot表推测的三种句式---3.疑问句在疑问句中，一般只使用can/could。shehavefinishedherhomework?yoursisterbeathomenow?CouldCan【口诀】can不肯，may/might不问，must不否问注：can表示推测时，不用于肯定句；may/might表示推测时，不用于疑问句；must表示推测时，不用于否定句或疑问句。He____________tomusic.对现在或一般情况的推测“情态动词+bedoing”“情态动词+be”“情态动词+动词原形”mustbelistingHe_________athomenow.Thelightisn’ton.can’tbeHe_________inhisoffice.mayworkShe_________veryhappywhensheopensthedoor.1.对将来推测，“情态动词+动词原形”mustbeThegroundiswet.It_____________yesterdaynight.对过去或已经完成的推测，“情态动词+have+过去分词”mayhaverained表对已经发生的事情的推测，意为“一定，想必”，在句子中表示的是一种肯定的推测。这种结构一般只用于肯定句。1.musthavedone否定形式：can’t(couldn’t)havedoneTheyout,becausethelightisstillon.Hedidn’thearthephone.Heasleep.“不可能，肯定不会”musthavebeencan’thavegone1)表对已经发生的事情不太肯定的推测，意为“可能已经，或许已经”3.may/mighthavedone2)虚拟用法：表可以做，但却没有做。Ifwehadtakentheotherroad,wemighthavearrivedearlier.Hemighthavegivenyoumorehelp,buthewasverybusy.表表猜测的反意疑问句的构成猜测的反意疑问句的构成表猜测的反意疑问句的构成成Hemustbeintheclassroom,___________?Tommusthaveheardofthenews,_________?Hermothermustbepreparingsupperforher,________?Itmusthaverainedlastnight,________?isn’thehasn’theisn’tshedidn’tit根据不推测时的情况添加，跟情态动词没有任何关系。Hemustbereading,he?Youmustdoityourself,you?Hemusthavegoneoverthearticle,he?Itmusthaverainedlastnight,it?Hermothermustbepreparingsupperforher,?Hemustbeintheclassroom,___________?Tommusthaveheardofthenews,__________?表猜测语气的反意疑问句的练习isn'tdon'thasn’tdidn’tisn’tsheisn’thehasn’the三种句式情态动词表推测的三种时态几组对过去的推测can/couldhavedonemusthavedonemay/mighthavedone表猜测的反意疑问句的构成Exercise:1.Thetelephoneisringing,butnobodyanswerit,he_______beathome.2.It’sthelibrary!Soyou_______knowshoutingisnotallowedhere.3.--Haveyoudecidedwheretospendyoursummerholiday?--Notyet.We_______gotoQingdao.4.--IsTinagivingusaspeechthisevening?--No,it_______beher.ShehasgonetoJapan.5.You______betiredafterplayingsportsforalongtimewithoutarest.mustmaycan’tmustcan’t6.Putonmoreclothes.Youbefeelingcoldwithonlyashirton.A.canB.couldC.mustD.would7.Youtoattendthemeeting,butyoudidn't.A.shouldcomeB.wouldhavecomeC.cameD.shouldhavecome8.Wedidn'tseeTomatthemeetingyesterday.Heit.A.mustn'thaveattendedB.cannothaveattendedC.needn'thaveattendedD.wouldhavenotattended9.Tomwentonfoot,buthebybus.A.mightgoB.maygoC.couldhavegoneD.oughthavegoneDBCC10.Thereissomeoneknockingatthedoor.itbeTom?A.CanB.MustC.ShouldD.Ought11.Therewasalotoftime.He.A.mustn'thavehurriedB.needn'thavehurriedC.couldhavehurriedD.oughttohavehurried12.Wedidn'tstudyChemistrylastnight,butwe.A.hadstudiedB.couldC.shouldD.couldhave13.Tomdidnotgotothepartyyesterday,orIhim.A.wouldseeB.couldmeetC.mighthaveseenD.mightseeABDC14.Thetrafficisheavythesedays.I______arriveabitlate,socouldyousavemeaplace?A.canB.mustC.needD.might15.IthavebeenTomthatparkedthecarhere,ashe'sonlyonewithacar.A.mayB.canC.mustD.should16.Itbethepostmanatthedoor.It'sonlysixo'clock.A.mustn'tB.can'tC.won'tD.needn'tDCB17.Idon'treallylikeJames,whydidyouinvitehim?Don'tworry.Hecome.Hesaidhewasn'tcertainwhathisplanswere.A.mustn'tB.needn'tC.wouldnotD.mightnot18.Hi,Tom.Where'sJane?She__________Intheclassroom.Isawhertherejustnow.A.shallbeB.shouldhavebeenC.mustbeD.mighthavebeen19.Whatareyoureyessored?You______havesleptwelllastnight.Yeah,Istayeduplatewritingareport.A.can'tB.mustC.needn'tD.won'tDCA20.Youneednottakeanumbrella.Itisn'tgoingtorain.Well,Idon'tknow.It__doA.mightB.needC.wouldD.should21.Mybookismissing.who__________havetakenit?A.needB.mustC.shouldD.could22.WhatareyougoingtodothisSaturday?I'mnotsure,butI____________gotheconcert.A.mustB.wouldC.shouldD.mightADDThankyou!