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1、关于初一情态动词语法讲解第一页，本课件共有13页情态动词（modal verbs)：表示说话人的语气或情态，如请求、命令、愿望、能力以及可能性等。英语的情态动词有：第二页，本课件共有13页 can/could may/might must shall/should will/would need have to 能够可能必须应该意愿敢需要不得不+动词原形第三页，本课件共有13页 肯定 否定 缩写否定 can can not cant couldcould not couldnt maymay not /mightmight not mightnt must must not mustnt sh
2、ouldshould not shouldnt needneed notneednt第四页，本课件共有13页Shall一般只能用于第一人称。I shall think it over and Let you know my idea.我将考虑一下此事，然后告诉你我的想法。第五页，本课件共有13页情态动词情态动词不能单独作谓语动词不能单独作谓语动词，只能与，只能与动词动词原形一起原形一起做谓语，没有人称和数的变化。做谓语，没有人称和数的变化。A bird can fly.Fish cant live without water.You must hand in your homework at
3、once.You mustnt talk loudly in public.第六页，本课件共有13页canmaymust词义词义词义词义肯定肯定肯定肯定 否定否定否定否定疑疑疑疑问问问问回答回答回答回答能够能够(表能力表能力)可以可以(表允许表允许表允许表允许)必须必须主语主语+can+can+动动词原形词原形主语主语+may+动词原形动词原形主语主语主语主语 +must+动词原形动词原形主语主语+cannot/+cannot/cant+cant+动词原形动词原形主语主语主语主语 +may not+动词原形动词原形主语主语+must not/mustnt+动词原动词原动词原动词原形形形形Can
4、+Can+主语主语+动词原形？动词原形？May+May+主语主语主语主语 +动动动动词原形？词原形？词原形？词原形？Must+Must+主语主语+动词原形？动词原形？Yes,主语主语+can.No,No,主语主语+cant.Yes,主语主语+may.No,主语主语+may+may not.not.Yes,Yes,主语主语+must.No,主语主语主语主语 +neednt.在口语中可用在口语中可用can代替，但代替，但maymay更礼貌。更礼貌。更礼貌。更礼貌。第七页，本课件共有13页1.My elder brother _(能能)drive a car.否定句：否定句：一般疑问句：一般疑问句：
5、肯定回答：肯定回答：否定回答：否定回答：就划线部分提问：就划线部分提问：PracticePractice canMy elder brother cannot/cant drive a car.Can your elder brother drive a car?Yes,he can.No,he cant.What can your elder brother do?第八页，本课件共有13页2.You _(可以可以)leave now.否定句：否定句：一般疑问句：一般疑问句：一般疑问句：一般疑问句：肯定回答：肯定回答：否定回答：否定回答：否定回答：否定回答：就划线部分提问：就划线部分提问：Pr
6、acticePractice mayYou may not leave now.May I leave now?Yes,you may.No,you may not.When may I leave?第九页，本课件共有13页3.Lily _(必须必须)go to the library.否定句：否定句：否定句：否定句：一般疑问句：一般疑问句：一般疑问句：一般疑问句：肯定回答：肯定回答：否定回答：否定回答：否定回答：否定回答：就划线部分提问：就划线部分提问：PracticePractice mustLily mustnt go to the library.Must Lily go to the
7、 library?Yes,she must.No,she neednt.Where must Lily go?第十页，本课件共有13页A.A.用用用用must(not),may(not),can(not)must(not),may(not),can(not)填空：填空：填空：填空：1.I dont understand this word._ I use your 1.I dont understand this word._ I use your dictionary?-Yes,please use it.dictionary?-Yes,please use it.2.The traffic
8、 light is turning red.We _ stop.2.The traffic light is turning red.We _ stop.3.You _ borrow two books at a time.3.You _ borrow two books at a time.4.Tom _ play table tennis,but he _ play football.4.Tom _ play table tennis,but he _ play football.5.Doctor,_ I take much medicine?5.Doctor,_ I take much
9、medicine?-No,you neednt.But you _ drink a lot of water.-No,you neednt.But you _ drink a lot of water.6.Tom is good at drawing.He _ draw wonderful pictures.6.Tom is good at drawing.He _ draw wonderful pictures.7.You _ smoke here.Its dangerous.7.You _ smoke here.Its dangerous.8.-May I turn on the TV?N
10、o,you _.My dad is sleeping.8.-May I turn on the TV?No,you _.My dad is sleeping.Test YourselfTest YourselfMay/Canmustmay/cancancantmustmustcan mustnt/cannot/may notmay notcant第十一页，本课件共有13页Test YourselfTest YourselfB B.单项选择单项选择单项选择单项选择：1.-_ I ask you a question?-Sure1.-_ I ask you a question?-Sure A.M
11、ay B.Do C.Should D.AmA.May B.Do C.Should D.Am2.Can I go to the park,Mum?2.Can I go to the park,Mum?-Certainly.But you _ be back by six oclock.-Certainly.But you _ be back by six oclock.A.A.can B.may C.will D.mustcan B.may C.will D.must3._ you dance?We need some more dancers for the talent show.3._ y
12、ou dance?We need some more dancers for the talent show.A.A.May B.Can C.Must D.ShouldMay B.Can C.Must D.Should4.Im afraid I need a pair of glasses.I _ hardly see the words on the 4.Im afraid I need a pair of glasses.I _ hardly see the words on the blackboard.blackboard.A.A.can B.must C.may D.shouldcan B.must C.may D.should5.You _ cross the road now.You have to wait until the light turns 5.You _ cross the road now.You have to wait until the light turns green.green.A.dont B.didnt C.wont D.mustntA.dont B.didnt C.wont D.mustnt第十二页，本课件共有13页感感谢谢大大家家观观看看2022/12/8第十三页，本课件共有13页