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1、情态动词目录CONTENTS一、情态动词的那些事儿二、情态动词的那些一般用法三、情态动词的那些推测用法四、情态动词的那些特殊用法情态动词的那些事儿01PARTONE情态动词的那些词儿maymightcancouldwillwouldshallshouldmusthavetoneed…情态动词的那些特点CaiXukuncansingsongswell.FanChengchengcansingsongswelltoo.ButDongYanleican’tsingsongswell.3.有助动词的作用1.不能单独作谓语,
2、必须与动词原形连用2.没有人称和数的变化情态动词里的那些一般用法02PARTTWOmay/mightcan/couldwill/wouldshall/shouldmust/haveto/needMayIgototheBall?Yes,youmay.Yes,youcan.No,youmustn’t.No,youcan’t.maymight意义:请求获得对方的允许,“可以”might(委婉语气)否定--mustn’t/can’t肯定--may/canmusthavetoneed否定mustn’t,“禁止”否定回答用ne
3、edn’tNo,youneedn’t.No,youdon’thaveto.MustIdothehousework?Yes,youmust.musthavetoneed3.must与haveto的区别ImustgototheBall.ButIhavetofinishthehousework,beforeIgototheBall.cancould1.表具备某种能力:能,能够;could(过去的能力)Cinderellacoulddancewellinthepast.Cinderellacandancewellnow.c
4、ancould2.表请求和允许:“可以”=may;could(委婉语气)回答:肯定--can否定--can’tCouldIdancewithyou?Yes,youcan.知识要点总结情态动词本意may,mightcan,couldmust允许能力,允许必须否定含义不能不可以不可以禁止回答may/canmustn’t/can’tcancan’tmustneedn’t1.--MusthesingthesonginEnglish?--No,he_____.A.needn’tB.can’tC.mustn’tPractice
5、makesperfect2.--Mum,_____Ivisitthesciencemuseumtomorrow?--I’mafraidyou_____.ItisclosedonMonday.A.must;mustn’tB.may;can’tC.should;can’tPracticemakesperfect3.--Mum,_____Iplayfootballthisafternoon?--Sure,butyou_____finishyourhomeworkfirst.may,couldcan,mustcan,mus
6、tn’tmay,can’tPracticemakesperfectwillwould用于第二人称的疑问句中,表“请求、建议”等;would(委婉)用于表示意志,意愿或决心,意为“会,愿意”。will指现在,而would指过去。Willyoumarryme?Yes,Iwill.Iwillloveyouforever.shallshould1.征求对方意见,用于第一,第三人称疑问句中shallShallweholdourweddingthisSunday?Ok.shallshould意为:应该。表达义务,职责(说话人的
7、观点)shouldAshuman,weshouldbekindtoothers.1.--Manypeopleplaywithmobilephonesalldayinsteadofreadingbooks.--That’stoobad.Everyone_______beabooklover.ReadingismoreenjoyableA.mayB.shouldC.wouldPracticemakesperfectLet’stakeabreak!情态动词那些推测用法03PARTTHEREmay(might)can(co
8、uld)mustcan/couldmay/mightmust用于肯定句“可能”might(可能性更小)0%50%100%<<用于疑问句,否定句“不可能,可能吗”could(可能性较小;可用于肯定句,疑问句,否定句)用在肯定句中“一定”GuessinggameWhoisthis?It__________beFanBingbing.It__________beG