译林英语必修四Unit2-Grammar-and-usage-(共21张PPT)

M4U2GrammarandusageModalverbs+havedoneEnjoyasong!IneverknewIhaveknownsomethingwouldn’tbetrueBabyyouknowthatI'msointoyouMorethanIknowIdoSowhy,why,why,whywewait?AndI,I,I,IbewaitingWaitingforsomeonenewEventhoughthatitwasn’tyouEnjoyasong!IneverknewIhaveknownsomethingwouldn’tbetrueBabyyouknowthatI'msointoyouMorethanIknowIdoSowhy,why,why,whywewait?AndI,I,I,IbewaitingWaitingforsomeonenewEventhoughthatitwasn’tyoushouldshouldshouldshouldshouldhaveknownModalverbs+havedoneshouldhavedone1)Theflowershavealldied.Ishouldhavewateredthemoften.2)Tom,youaretoolazy.Thehomeworkshouldhavebeenfinishedyesterday.shouldhavedone意为“”，而事实上.本应该做某事并没有做couldhavedone1)Notre-DamedePariswasdamagedinthefire.Whatapity!ButIthinkthefirecouldhavebeenavoided.2)Wecouldhavevisitedthemuseumbutwespenttoomuchtimeshopping.couldhavedone意为“”而事实上.本可以做某事并没有做wouldhavedone1)Iwouldhavetoldyouallabouttheboy'sstory,butyoudidn'taskme.2)IfDengChaohadn’tmadeamistake,hewouldhavebecomethechampionofRunningMan.wouldhavedone意为“”而事实上.本来会做某事并没有做※Conclusionshouldhavedone,couldhavedone,wouldhavedone都可以用于语气，表示与相反。虚拟过去的事实Part1shouldhavedonecouldhavedonewouldhavedone虚拟语气Part2musthavedone1)AlltheChinesepeoplemusthavefeltproudwhenXuHaifengwonthefirstgoldmedalforhiscountry.2)Itmusthaverainedlastnight,forthegroundiswet.musthavedone意为“”表示对的推测.一定已经做了过去行为surecan/couldhavedone1)Serenaboardedtheplaneat6a.m.Can/couldshehavearrived?2)Shewastwohourslate.Whatcanhavehappenedtoher?can/couldhavedone意为“”表示对的推测.表推测时通常用于(句型)。可能已经做了过去行为疑问句may/mighthavedone1)OnApril22th,Chinasuccessfullylaunchedthe44THBeidouNavigationSatellite(北斗导航卫星).Thehighschoolstudentsmay/mighthaveknownthispieceofnewsfromthenewspaper.2)Sheislate.Shemay/mighthavemissedthebusthismorning.may/mighthavedone意为“”表示对的推测.可能已经做了过去行为Notsuremusthavedone;can/couldhavedone;may/mighthavedoneSimilarity：Differences:都可以表示对过去行为的推测1.可能性大小：mustcancouldmaymight2.can/couldhavedone表推测常用于疑问句中※ConclusionPart1shouldhavedonecouldhavedonewouldhavedone虚拟语气Part2musthavedonecan/couldhavedonemay/mighthavedone表推测1)4月23日，湖南省发布了新高考政策，这项政策一定已经引起了广泛关注。OnApril23th.HunanprovinceissuedanewpolicyofCollegeEntranceExamination.Thispolicy.2)他是《复仇者联盟》的粉丝，他前天可能看了《复仇者联盟4》的首映式。HeisafanofAvengers,sothepremiereofAvengers:Endgamethedaybeforeyesterday.musthavearousedwidespreadattention.may/mighthavewatchedExercises3)兰老师现在不在办公室，他可能已经去了哪里呢？Mr.Lanisnotintheoffice.4)4月23日，海上阅兵式（Seaparade）在下午两点直播。我当时有课，否则我就会看了。OnApril23th,theSeaparadewasbroadcastliveat2p.m.andIwashavingaclassthen.Otherwise,.Wherecan/couldhehaveExercisesgone?Iwouldhavewatchedit5)我本可以在上周的考试中得高分的,但是我太粗心了。Iintheexaminationlastweek,butIwastoocareless.6)你今天早上迟到了,你本该在7点20分之前到校的。Youwerelatethismorning.Youbefore7.20a.m.couldhaveachievedhighgradesExercisesshouldhavearrivedattheschoolRequirements:Everystudentshouldmakeupatleastonesentencecontaining“modalverbs+havedone”.Groupwork:makingupastorychainForexample:Lastweekend,acatcametomyhome…Forexample:Lastweekend,acatcametomyhome…StudentA:Itwasmeowingallthetime.Itmusthavebeenhungry.StudentB:Mymotherfeditwithsomemeat,butthecatrefusedtoeatit.Mymothersaidweshouldhaveboughtsomefish.StudentC:…StudentD:…Lastweek,Imetanalienonmywayhome…(usingmodalverbs+havedone)HomeworkFinishP42inKKL:Grammarandusage.