高中英语情态动词Model Verbs教学课件

情态动词,1.情态动词主要有:can,could,may,might,must,oughtto,shall,should,will,would,need,dare，hadbetter,etc.,Someofuscanusethecomputernow,butwecouldntlastyear.Itwillbesunnyinthedaytime,butitcouldrainlateronthisevening.-CanIgonow?-Yes,youcan.Couldyouwaitafewdaysforthemoney?Canthisnewsbetrue?Howcanyoubesofoolish?,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,_.,表示“惊异,怀疑,不相信的态度(主要用于否定句,疑问句和感叹句中)”,youcan,Imafraid,1.can和could,MayIwatchTVaftersupper?Yes,_./No,_.MightIuseyourtelephone?MayIgohomenow?Itmaybetrue.Shemaycometomorrow.Hemighthavesomefever.Mayyousucceed!Mayyouhavemanymoredaysashappyasthisone!,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,4I_you,becauseIthoughtImustbewrong.A.darenotaskB.darenottoaskC.darenotaskingD.daretonotask,Weshouldbestrictwithourselves.Youshouldkeepyourpromise.Theyshouldhavearrivedbytwooclock.Ishouldadviseyounottodothat.Youaremistaken,Ishouldsay.AskTomtoringmeupifyoushouldseehim.ShouldIbefreetomorrow,Illcome.Ifthingsshouldchangesuddenly,pleaseletmeknow.Whyshouldyoubesolatetoday?,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,用于If从句中表示可能性很小的事情,译为“万一”,“Why/How+should”表示说话人对某事不能理解.,4should.,5.shall与should-Excuseme,butIwanttouseyourcomputertotypeareport.-You_havemycomputerifyoudonttakecareofit.A.shantB.mightnotC.needntD.shouldnt,A,Shall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。,Whatshallwedonext?Shallwebeginourlessons?Shallthedriverwait?Shallhecomein?Comein,please.Whenshallmyfatherbeabletoleavehospital?YoushallhavethebookwhenIfinishedit.Heshallbepunished.Youshallbepunishedifyouinsistondoingitthisway.,用于第一,三人称,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,1)Hemustbereading,_?2)Whathesaidcantbetrue,_?3)Hemusthavegoneoverthearticle,_?4)Itmusthaverainedlastnight,_?5).Youmustbetired,_?6).Youmustgohomerightnow,_?7).Youmusthaveseenthefilm,_?8)Hemusthavemetheryesterday,_?,7.表猜测语气的反意疑问句的构成,isnthe,isit,hasnthe,didntit,arentyou,needntyou,haventyou,didntyou,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:对过去的可能推测:,musthavedonecouldnthavedonemighthavedone,典型错误,Hemustntbeintheclassroom,forIsawhimontheplaygroundjustnow.(),cant,2.Youmightleavethebaginthehall.(),mighthaveleft,3.Youmusthaveseenthefilmlastweek,haventyou?(),didntyou,4.ObamamusthavebeentoJapan,didnthe?(),hasnthe,情态动词的虚拟用法,I_(pass)myexaminationeasilybutImadetoomanystupidmistakes.Ifwehadtakentheotherroad,we_(arrive)earlier.You(water)theflowers,foritsrainingnow.You(be)socareless.,couldhavepassed,mighthavearrived,neednthavewatered,oughtnottohavebeen,1.昨晚那间屋子着火了，但那家人都逃了出来;2.我不会告诉老师这件事;3.办公室不能抽烟;4.灯还亮着，他肯定在书房读小说;,1.Thehousecaughtfirelastnight,butthefamilywasallabletoescape.,翻译句子(利用情态动词),4.Thelightisstillon.Hemustbereadinginthestudy.,3.Youmustntsmokeintheoffice.,2.Iwonttelltheteacheraboutit.,5.你又迟到了，你应该早点起床.6.我不知道，他肯定迷路了.7.我本来没有必要买这么多食物，只来了5个人8.昨晚一定下雨了，因为地面还是湿的。,5.Youwerelateagain,youshouldhavegotu