课件类 人教版 高三英语复习（情态动词）.ppt

Goodafternoon!,情态动词是中学英语学习中的一个重点和难点，也是高考的重点考察内容之一。根据对历年来试题的分析,高考的热点依次是:1.)推测和可能性2.)情态动词+havedone3.)虚拟语气4.)shall,should,can和must表特定语气.,Someofuscanusethecomputernow,butwecouldntlastyear.Itwillbesunnyinthedaytime,butitcouldrainlateronthisevening.-CanIgonow?-Yes,youcan.Couldyouwaitafewdaysforthemoney?,表示“能力”,表示“客观可能性”,表示“请求和允许”,表示“请求”,口语中代替can,使语气更委婉,主要用于疑问句,答语用can.-CouldIuseyourbiketomorrow?Yes,_.No,_.,youcan,Imafraid,1.can和could,MayIwatchTVaftersupper?Yes,_./No,_.MightIuseyourtelephone?MayIgohomenow?Itmaybetrue.Shemaycomestomorrow.Hemighthavesomefever.Mayyousucceed!,youmay,Youmustnt,允许,许可,禁止,阻止,Might比May的语气更委婉,表示可能性的推测,译为“大概,可能”用might时显得更加不肯定,用于祈使句表示祝愿,2.May和Might,Acomputer_thinkforitself;itmustbetoldwhattodo.A.cantB.couldntC.maynotD.mightnot,A,may_can_,表主观“可能”,表客观“可能”,Cannot_maynot_,不可能,可能不,3.may和can,Weshouldbestrictwithourselves.Youshouldkeepyourpromise.Theyshouldhavearrivedbytwooclock.Ishouldadviceyounottodothat.Youaremistaken,Ishouldsay.AskTomtoringmeupifyoushouldseehim.ShouldIbefreetomorrow,Illcome.Ifthingsshouldchangesuddenly,pleaseletmeknow.,表劝告和建议应该,表推测,“可能,应该”,用于第一人称,表示说话人的一种谦逊,客气,委婉,4should.,5.shall与should-Excuseme,butIwanttouseyourcomputertotypeareport.-You_havemycomputerifyoudonttakecareofit.A.shantB.mightnotC.needntD.shouldntShall可表“警告、威胁、许诺、决心”等Whyshouldhethinkthat?Should表“劝告、建议”，译为“应当”；有时也表“预测”、“可能”或表示说话人的惊奇、愤怒、失望等感情。,IshallgotoworkafterIhavefinishedschool.Whatshallwedonext?Shallwebeginourlessons?Shallthedriverwait?Shallhecomein?Comein,please.Whenshallmyfatherbeabletoleavehospital?Youshallgowithme?YoushallhavethebookwhenIfinishedit.Heshallbepunished.Youshallbepunishedifyouinsistondoingitthisway.,用于第一人称表将来,征求对方意见,用于第一,三人称陈述句中表征求对方意见或请示,用于第二,三人称陈述句中表命令,警告,允诺或威胁,6.表对过去的推测:情态动词+have+down,对过去肯定推测:对过去否定推测:表过去本能够做而没做:对过去的可能推测:表过去应该做而没做:表过去不应该做而做了:表过去需要做而没做:表过去不需要做而做了:,musthavedonecouldnthavedonecouldhavedonemighthavedoneshouldhavedoneshouldnthavedoneneedhavedoneneednthavedone,Hemustbereading,_?Youmustdoityourself,_?Hemusthavegoneoverthearticle,_?Itmusthaverainedlastnight,_?,7.表猜测语气的反意疑问句的构成,isnthe,dontyou,hasnthe,didntit,1).Youmustbetired,_?2).Youmustgohomerightnow,_?3).Youmusthaveseenthefilm,_?4).Hemusthavemetheryesterday,_?,needntyou,arentyou,needntyou,haventyou,didntyou,1.在一般疑问句中.May/MightIuseyourubber?No,_Yes,you_.2.注意:MustIgonow?Yes,you_.No,you_.Youmustworkhardnexttime,_?Youmustgohomerightnow,_?Youmustntwalkonthegrass,_?,mustnt.(Youarenotallowed),can,must,neednt/donthaveto,mustntyou,needntyou,mustyou,1.-Therewerealreadyfivepeopleinthecarbuttheymanagedtotakemeaswell.-It_acomfortablejourney.()A.cantbeB.mustnthavebeenC.shouldntbeD.couldnthavebeen,D,2.Johnny,you_playwiththeknife,you_hurtyourself.()A.wont;cantB.mustnt;mayC.shouldnt;mustD.cant;wouldnt,B,情态动词典型例题专练,3.Thefirespreadthroughthehotelveryquicklybuteveryone_getout.()A.hadtoB.wouldC.couldD.wasableto,D,4.-WhencanIcomeforthephotos?Ineedthemtomorrowafternoon.-They_bereadyby12:00.()A.canB.shouldC.mightD.need,B,5.Withsomuchworkonhand,you_toseethegamelastnight.()A.mustntgoB.couldhavegoneC.shouldntgoD.shouldnthavegone,D,6.TheyaredisappointedattheEnglishparty.Theysaythatit_betterorganized.()A.hadbeenB.hadtobeC.musthavebeenD.couldhavebeen,D,7.Shemusthaveforgottenabouttheclass_?()A.doesntsheB.mustntsheC.hasntsheD.wontshe,C,8.Seewhosthere!_itbeMary?A.MayB.MustC.CanD.will,C,9.Jenny_withhimatthattime,forIwashavingdinnerwithherinmyhome.()A.canthavebeenB.mustbeC.mustnthavebeenD.maybe,A,10.Tomsfatherpromised,“You_haveanewcomputerifyoupassthecomingexamination,”()canB.shouldC.shallD.may,C,11.-Didyouwalkedhomebyyourselflastnight?-Yes,Idid.ButIthinkI_.A.needntB.shouldntC.maynothaveD.neednthave,D,12.-Wouldyouchangethisbucketforanother?It_holdwater.-OK.Imreallysorry.A.wontB.cantC.didntD.doesnt,A,13.YououghttohavehelpedhimwithhisEnglish,_you?A.wontyouB.oughtnoty