资料,初中高中语文数学英语物理化学政治历史生物文库

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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