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1、情态动词常见的情态动词有can,could,may,might,must,need,haveto,should等.所有的情态动词后面都接动词原形.Eg:Icanswim.Hehastogonow.1.can能够,会,可以Eg:IcanspeakEnglishwell.Canyoutellmehowtostartthemachine?此外,can用来表示否定推测和疑问推测Eg:Thatcan’tbeourEnglishteacherbecauseshehasgonetoShanghai.Canitbetrue?2.may可以,可能,也许Eg:Youmaygowit
2、hme.---MayIborrowyourpen?---Yes,youmay.No,you_______________can’t/mustn’t.此外,may表示可能时注意和maybe的区别maybe可能(副词),不能做谓语,常在前面Eg:Maybeyouknowtheoldman.=Youmayknowtheoldman.may常放在句中,和动词原形一起做谓语1)Idon’tknow._______hecantellyou.2)Idon’tknow.He______tellyou.Maybemay3.must必须mustn’t严禁,禁止,不许Eg:Imust
3、learnhowtowork.Youmustn’tplayinthestreet.---MustIfinishtheworknow?---Yes,youmust.No,youneedn’t/don’thaveto(不必）.此外must用于肯定推测,表示肯定是Eg:Thebookmustbelongtohimbecausewecanseehisnameonit.4.need需要既可以做实义动词也可以做情态动词实义动词needtodosth需要做某事Eg:Ineedtobuyabighouse.---Doyouneedtobuyabighouse?---Yes,Id
4、o.No,Idon’t.Heneedstoborrowamap.---Doesheneedtoborrowamap?2)情态动词needdosth需要做某事Eg:Ineedbuyabighouse.5.haveto不得不Eg:It’seleveno’clock.Ihavetogonow.Hehastofinishtheworkfirst.请注意:Idon’thavetogonow.Hedoesn’thavetofinishtheworkfirst.haveto和must的区别:haveto表示客观因素Eg:Weareverygladattheparty,buti
5、t’s11,sowehavetoleavenow.must表示主观因素Eg:Wemuststudyhardtofindagoodjobforourselves.6.You’dbetterdosth你最好做某事Eg:You’dbetterbuythebook.You’dbetternotdosth你最好不要做某事You’dbetternotrunintheclassroom.1,--Canyoutellme______Englishathome?--ListentotheEnglishprogramme.A,howtoreadB,howtolearnC,whent
6、ouseD,wheretouse2,PleasetellLinFeng______toturnoffthelightswhenhe__________.A,tonotforget,leaveB,don’tforget,willleaveC,notforget,leavingD,nottoforget,leaves3,---Wouldyoumind______withme?---Ofcoursenot.A,takingphotosB,totakephotosC,takesphotosD,takephotosBDA4,---Jenny,letmetellyouase
7、cret.Iamtiredofmymumthesedays.--Why?--Shemakesme____atNanshanstadiumeverySundayafternoon.A,danceB,dancedC,todanceD,dancing5,It’snice________mewithmyChineseA,foryoutohelpB,ofyoutohelpC,toyouofhelping6,--Whydon’tyoustartthemachine?--ThisisnewandIdon’tknow______itA,wheretostartB,whentos
8、tartC,howtos
