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时间:2019-09-23
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1、Chapter11、may/canmaypermissioncanposibilityabilitymay:用于长辈与晚辈之间,上下级之间,不是很的熟could:客气的can:非常熟,同辈之间,很随便的1.permissionaskingforpermission:CouldIuseyourbike?Ofcourse,youcan.(如用could回答,意为“你用吧”,有犹豫的不想借之意)转达用can,不能用mayIt’snotfair,MarycanstayuptilltenandIhavetogotobedateight.may:现
2、在的,即将的情况推测,判断2.posibilitycan:抽象的,范范的谈Willyouanswerthephone?a.Itmaybeyourmother.Accordingtotheradioitmayrainthisevening.Guangzhoucanbeveryhotinsummer.Mr.Smithlookspale.Hemaybeill.Mr.Smithisinpoorhealth.Hecanbeillatanytime.WhereisJohn?Hemaybeinthelibrary.Othermodalverbsfor
3、deduction:Hemust/will/would/oughtto/should/could/may/mightbeinthelibrary.b.Hemay’notgotomorrow.(=Idonotpermithimtogo)He’maynotgotomorrow.(=Itispossiblethathewillnotgo)Interrogative:疑问句用can和could(Itismidnight,thereisaknockatthedoor)Whocan/couldthatbe,solate?Itmay/…(就是不能用c
4、an,其他都可用)beTom,withoutbringingthekeyagaing.Negation:could’t(不大可能)ItmaynotbeTom.(maynot可能不)Itcan’tbeTom.HehasgonetoBeijing.(can’t不可能,)3.ability(其中有现在,将来,过去的ability)1)presentandfutureability:can/beabletopresentandfuturea.presentabilityCanyou/Areyouabletotype?(用Canyou意为“懂的”
5、,用Areyouableto意为“不是很懂”)b.futureability(纯粹能力)Ourbabywillbeabletowalkinafewweeks.(纯粹将来的能力)c.presentarrangementforfutureaction(现在对未来的安排)CanyoucometoapartyonSaturdayevening?(常用)Willyoubeabletocome?(费力点,不常用)2)pastability:couldORwasabletoa.WhenIwasyoungIclimbanytreeintheforest
6、.Althoughthepilotwasbadlyhurt,hewasabletoexplainwhathadhappen.Hereadthemessagebuthe(not)understandit.Iseehimthroughthewindow.(一般性的能力用could和beableto都可以)b.forparticularoccasion:过去具体某事用wasabletoAlthoughthepilotwasbadlyhurthewasabletoexplainwhathadhappen.IknewthetownsoIwasab
7、letoadvisehimwheretogo.Thecarplungedintotheriver.Thedriverwasabletogetoutbutthepassengersweredrowned.(表否定和感观动词无以上区别)c.exceptionsHereadthemessagebuthecouldn’t/wasn’tabletounderstandit.IhadnokeysoIcouldn’t/wasn’tabletolockthedoor.(negation.)Icould/wasabletoseehimthroughthe
8、window.(verbsofsenses)3)could+perfectinfinitive:a.abilityHewasabletosendamessage.(Hedidit)Hecouldhavese
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