情态动词高三公开课

一情态动词表推测;二情态动词+完成式；三情态动词的做题技巧。,情态动词,Letsreadandtranslatethesentences!,Shecouldnt/cantbesostupidtodothat.Imaybebusyfromtomorrowon.Youmustbetiredafterworkingsolong.Sheshouldntbeoutinsuchanearlymorning.,她不可能去做那种事吧。,从明天起我可能会忙起来。,你工作这么久以后肯定累了吧。,她不会这么一大早就出去。,情态动词表推测,一、情态动词表推测,1.肯定的推测一般用must,should,may（might）或could（不用can），其中，_的语气最强，译为“肯定”、“准是”、“想必是”；_的语气次之，译为“很可能”、“应该”，指按常理推测；_的语气最弱，译为“也许”、“可能”。,must,should,may（might），could,-AreyoucomingtoJeffsparty?-Imnotsure.I_gototheconcertinstead.A.mustB.wouldC.shouldD.might-Hi,tom.Anyideawherejaneis?She_intheclassroom.Isawherjustnow.A.shallbeB.willbeC.mustbeD.canbeAccordingtothespeed,thecar_arriveatShanghaibeforeitgetsdark.A.shallB.shouldC.mustD.need,注：can有时也用于肯定句中表示推测，主要用于表示理论上的可能性(即从理论上看是可能的，但实际未必会发生)，或表示“有时”之意。如：Evenexperiencedteacherscanmakemistakes._Shecanbeveryunpleasant._Foodpoisoningcancausedeath._,即使是有经验的教师也可能出错。,她有时很令人讨厌。,食物中毒可导致死亡。,Readandtranslate:,ItisusuallywarminmyhometowninMarch,butit_berathercoldsometime.A.mustB.canC.shouldD.wouldPeter_bereallydifficulttodealwithattimeseventhoughhesanicepersoningeneral.A.shallB.shouldC.canD.must,attimes:有时；偶尔,2.否定推测分为两种情况：,1）语气不很肯定时，常用maynot,mightnot，译为_2）否定语气较强时，则用_，译为“根本不可能”、“想必不会”，,可能不、也许不,cant,Youmightjustaswelltellthemanufacturer（制造商）thatmalecustomers_notlikethedesignofthefurniture.A.mustB.shallC.mayD.needIsntthatAnnshusbandoverthere?No,it_behimImsurehedoesntwearglasses.A.cantB.mustnotC.wontD.maynot,may/mightaswell不妨；还是的好,3.疑问句中的推测，往往用can或could。,Mr.Bushisontimeforeverything.How_itbethathewaslatefortheopeningceremony？A.canB.shouldC.mayD.must,4.对已发生事情的推测。肯定推测常用“must,may,might等+完成式”；否定和疑问推测常用“can,may,might等+完成式”。,musthavedone:_canthavedone:_may/mighthavedone:_,想必一定做了某事,不可能做了某事,可能/或许已经,Guesswhat!IhavegotAformytermpaper.Great!You_readwidelyandputalotofworkintoit.A.mustB.shouldC.musthaveD.shouldhaveMyMP4playerisntinmybag.Where_Ihaveputit?A.canB.mustC.shouldD.would,Icantfindmypurseanywhere.-You_havelostitwhileshopping.A.mayB.canC.shouldD.would,二、“情态动词+完成式”,二、“情态动词+完成式”1.“should（oughtto）+完成式”表示_。其否定式“shouldnt（oughtntto）+完成式”表示某种行为_。,本应该做某事而实际上没有做,不该发生但却发生了,Oh,Imnotfeelingwellinthestomach,I_somuchfriedchickenjustnow.A.shouldnteatB.mustnthaveeatenC.shouldnthaveeatenD.mustnteatIlltellMaryabouthernewjobtomorrow.You_herlastweek.A.oughttotellB.wouldhavetoldC.musttellD.shouldhavetold,2.“could+完成式”表示_的但结果没能做成，含有遗憾的意味。Hepaidforaseat,whenhe_haveenteredfree.A.couldB.wouldC.mustD.need,本来能够做成某事,3.mighthavedone表示_的但实际上没有发生。,Ileftmyhandbagonthetrain,butluckilysomeonegaveittoarailwayofficial.Howunbelievabletogetitback!Imean,someone_it.A.willhavestolenB.mighthavestolenC.shouldhavestolenD.musthavestolen,本来可能做某事,3.“neednt+不定式的完成式”表示_而实际上做了某事。Theweatherturnedouttobefineyesterday.I_thetroubletocarrymyumbrellawithme.A.shouldhavetakenB.couldhavetakenC.neednthavetakenD.mustnthavetaken,本来不必做某事,三情态动词的做题技巧:,1.充分利用句子语境。综观历年高考英语情态动词的考查情况，有相当一部分考题从本质上看都是在考查情态动词在具体语境中的运用，即只要考生能弄清各个被考查情态动词的意思，就可作出正确选择。如：,Lucydoesntmindlendingyouherdictionary.She_.Ivealreadyborrowedone.A.cantB.mustntC.needntD.shouldnt分析：答案选C。既然“我已经借了一本”，据此语境所以“她就没有必要借给我了”。,(1)Helen_goonthetripwithus,butsheisntquitesureyet.A.shallB.mustC.mayD.can(2)Ivetakensomeoneelsesgreensweaterbymistake.It_Harrys.Healwayswearsgreen.A.hastobeB.willbeC.mustntbeD.couldbe,2.根据时间确定时态。即要分清情态动词表推测时涉及的是现在情况还是过去情况。原则上说，若对现在情况进行推测，情态动词后接动词原形或进行式；若对过去情况进行推测，则后接动词的完成式；,Thiscakeisverysweet.You_alotofsugarinit.A.shouldputB.couldhaveputC.mightputD.musthaveput分析：答案选D。前文说“蛋糕很甜”，下文“你一定是在里面放了很多糖”，故用“musthavedone”表示对过去情况的肯定推测。,对现在或将来的推测常用结构为：情态动词+_/_对过去情况的推测常用结构为：情态动词+_如：,do,bedoing,havedone,(1)Catherine,Ihavecleanedtheroomforyou.Thanks.You_it.Icouldmanageitmyself.A.needntdoB.neednthavedoneC.mustntdoD.