高考英语 二轮专题复习情态动词课件.pptx

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1、情态动词情态动词 的用法的用法一、作用：表推测一、作用：表推测 时态时态 句式句式 现在，将来现在，将来 过去过去 肯定句肯定句否定句否定句或疑问或疑问句句must+do肯定肯定maymight+do不确定不确定mustmaymight+have donecancould not+docancould not+have done 特殊用法：特殊用法：有时可用于肯定推测的情态动词还有有时可用于肯定推测的情态动词还有can could(can could(表理论上的可能性表理论上的可能性)“)“有的时候有的时候会会”should(should(表有一定根据的推测表有一定根据的推测)“)“理所应当会

2、理所应当会”Dont worry.I have just sent an ambulance to your location.They _ be there any second.A.could B.might C.would D.shouldPeter _be really difficult at times even though he is a nice person in general.A.shall B.should C.can D.mustA AC C may might not(语气弱于语气弱于cancould)“也许不也许不”-Why didnt Alex attend

3、the party yesterday evening?-He _ not have wanted to see me.A.should B.might C.could D.would Liza _ well not want to go on the trip she hates traveling.A.will B.can C.must D.mayB BD DHe must be reading,_ he?You must do it yourself,_ you?He must have gone over the article,_ he?It must have rained las

4、t night,_it?表猜测语气的反意疑问句的构成表猜测语气的反意疑问句的构成isntdonthasntdidntcan could(一般的能力一般的能力)表示一般的能力表示一般的能力（联想：联想：be able to do 特殊能力、克服困难达特殊能力、克服困难达到、将来具备的能力）到、将来具备的能力）二二 、分类介绍、分类介绍表许可表许可-Could I come here again tomorrow?-Yes,_.-No,_.could(not)have done“本可以做却没做本可以做却没做”We _(go)there on foot.A taxi wasnt necessary

5、at all.you can.you cantcould have gonemay might表许可，译表许可，译“可以可以”-MayMight I use your phone?-Yes,_.-No,_.may+主语主语+do,表表“祝愿祝愿”May all your dreams _(come true)may well(not)+do“很可能很可能”may as wellmight as well+do“最好、到不如最好、到不如”Her appearance has changed so much that you _ (recognize)her.You _(stay)here ove

6、r the night.你最好留在这里过夜。你最好留在这里过夜。you may pleaseyou may not please notmay well not recognizemight as well staymust have to“必须必须”must 主观看法主观看法have to do 客观需要客观需要I dont like to stay here any longer,I_ leave nowIt is too late.I _ leave now.-Must we send in our plan this week?-Yes,_.-No,you _.musthave toy

7、ou must neednt dont have to must not“不许、禁止不许、禁止”表示绝对禁止，不可用来表示绝对禁止，不可用来由由must 提出的问句。提出的问句。You _ take the books out of the reading room.mustnt Why must it rain on Sunday?The car must break down just when I was about to start.All man must die.It must be raining outside.翻译翻译must非要、偏要非要、偏要必然必然一定一定用于第一人称表

8、将来用于第一人称表将来。I shall go to work after I have finished school.用于一、三人称疑问句，表征求对方意见或向对方请求用于一、三人称疑问句，表征求对方意见或向对方请求。-Shall he come in?-Come in,please.用于二、三人称陈述句，表示保证、承诺、威胁、警告用于二、三人称陈述句，表示保证、承诺、威胁、警告。You shall be punished if you insist on doing it this way.用于所有人称，表规章、法令等用于所有人称，表规章、法令等“必须必须”Each competitor s

9、hall wear a number.shall(1)表示有一定根据的推测、推论。表示有一定根据的推测、推论。“应该会应该会”The light is on now,they should be here.(2)说话人的感情。如惊奇、愤怒、失望等、说话人的感情。如惊奇、愤怒、失望等、“竟然竟然”You cant imagine that well-behaved gentleman should be so rude to a lady.(3)表示义务、责任或劝告、建议、命令等。表示义务、责任或劝告、建议、命令等。“应该应该”You should be more patient.(4)If s

10、he should know the truth,she would be greatly depressed.should(ought to do)will would表意愿表意愿Do what you will.表请求表请求Would you open the window,please?表习惯倾向性表习惯倾向性“就是、总是就是、总是”The door wont open.表习惯特征过去常常表习惯特征过去常常When he was young,he would smoke.He used to live in the country.need dare(即是情态动词也是实义动词即是情态动词

11、也是实义动词)-Need I tell him everything that is happened to his parents?Do I need to hand in the paper?You didnt need to hand in the paper.You neednt have handed in the paper.I dare say.我认为。我认为。Dare you go out alone?Do you dare to go out alone?-Yes,you must.-No,you neednt.二，表虚拟二，表虚拟译成译成“本本（但实际上没发生）（但实际上没发生）”could/should/would/might/neednt have done.didnt need to doEg:You should have come here five minutes earlier.