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1、情态动词 我喜欢我点击主要考点情态动词的基本特点常见的情态动词：can/could;may/might;must/have to;need;should掌握情态动词的常考点了解情态动词的新考点情态动词的特点：Need she finish the work today?需要I cant speak English well.不会He must study hard.必须有实义，但不能单独作谓语，有实义，但不能单独作谓语，无人称和数的无人称和数的变化变化，后需接后需接动词原形。动词原形。八仙过海，各显神通一一.can/could1.1.表表“能力能力”“能，能，会会”温馨提示：cancan在表能
2、力时，可与在表能力时，可与在表能力时，可与在表能力时，可与be able to be able to 互换，互换，互换，互换，be able to be able to 有更多时态，常被用于表示有更多时态，常被用于表示有更多时态，常被用于表示有更多时态，常被用于表示cancan所不能表达的将来时或完成时。所不能表达的将来时或完成时。所不能表达的将来时或完成时。所不能表达的将来时或完成时。I will I will be able tobe able to start a big company.start a big company.is able toShe She cancan dance
3、 well.dance well.I I couldcould dress myself when I was two.dress myself when I was two.was able to2.表许可“允许，可以”Can I use your pen?3.表礼貌地求助“能”Could you help me carry the box?Sure,I .4.表可能性“可能,也许”常用于疑问句或否定句中。Can Lily be at home now?No,she cant.I thought the story couldnt be true.can二二.may/might1.表许可“可
4、以，允许”（can）1)Might I use your phone?Of course you _.2)He said that I might borrow his dictionary.3)May I take this book out of the reading room？No,you _.注意：may表“允许”时，否定回答用mustnt或或cant。mustnt/cant/had better notmay2.表可能性“或许，可能”，用于肯定句。He may know the answer.He might come today.3.表祝愿 May you succeed.May
5、 you have a good luck.三.must 与与 have/has to1.must强调说话人本身主观主观看法认为“必须”做某事have to强调因外部外部客观客观条件条件的需要而“不得不”做某事，有人称，时态，数的变化。1）My bike was broken on my way to school,I _ walk there.2）The children _ cross the road carefully.3）Its raining all day,so he _ stay at home.4）I will _ go with her tomorrow.had tomus
6、thas tohave to He has to wear sports shoes for the gym class.He doesnt have to wear sports shoes for the gym class.Does he have to wear sports shoes for the gym class?2.在肯定句中表在肯定句中表猜测猜测，语气比，语气比may强，强，“必须，肯定必须，肯定”Who is knocking at the door?It _ be Mary.She said she would come to return my book.A.wil
7、l B.must C.can D.may3.表坚定地建议表坚定地建议“应该，得应该，得”You _ come to see us when you get to Beijing.Yes,I will.A.must B.will C.would D.have to The book is so interesting,you must read it.4.must的否定回答用的否定回答用neednt或或dont/doesnt/didnt have to表表“不必不必”Must he answer all the questions?No,he _.BA/doesnt have toneednt用
8、may,can,must,cant填空。1.This book _ be Liu Pings.Look,her name is on the cover.2.Im hungry.But youve just had lunch.You _ be hungry already.3._ Mr.Liu go on the trip with us?He _,but not quite sure yet.mustmustcantcantCanCanmaymay“可能可能”不不同同即学即用四四.need 两面孔 1.need作作情态动词情态动词：多用于否定和疑问句中，后接动词原形，：多用于否定和疑问句中
9、，后接动词原形，无人称、数的变化。无人称、数的变化。作作实义动词实义动词：多用于肯定句中，有人称、时态、数的变化，：多用于肯定句中，有人称、时态、数的变化，后接动词不式。后接动词不式。He neednt _(work)so hard.He needs _ (see)a doctor.2.need 的肯定回答用的肯定回答用must。Need we buy any fruit?Yes,we _.workto seemust五五.should1.表示义务、责任表示义务、责任“应该，要应该，要”We should study hard.We should protect the environment
10、.2.表示劝告，建议，命令表示劝告，建议，命令“应该，应当应该，应当”You are always watching TV.You _ do something more active.A.may B.can C.would D.should3.表预测动作发生的时间表预测动作发生的时间“应该会，可能应该会，可能”When did you post the letter to Linda?Yesterday morning.She _ get it tomorrow,Im sure.A.might B.could C.should D.would4.表示与实际情况相反，带有责备，埋怨、遗憾的语气
11、表示与实际情况相反，带有责备，埋怨、遗憾的语气“本应，本当本应，本当”Sorry,Im late again.You should have started earlier.The bus should have arrived ten minutes ago.DC1.I was told to be here before eight.Oh,you _.Im sorry for not telling you that we have changed the plan.A.must B.cant C.may D.neednt.(2004年江西省中考年江西省中考)2.If the traffi
12、c light is red,you _cross the road.Its very dangerous.A.dont B.mustnt C.neednt D.wouldnt（2008年江西省中考）年江西省中考）3.Susan has bought a large house with a swimming pool.It _be very expensive.I never even dream about it.A.must B.might C.cant D.shouldnt （2009年江西省中考）年江西省中考）4.Must we clean the room right now？No
13、,you _.You _ clean it after lunch.A.neednt,mustnt B.neednt,may C.mustnt,can D.mustnt,may (2010样卷样卷2)DBAB5.Mr.Scott_ be in the office.The light is still on.No,he _ be,I saw him drive a car out with his wife just now.A.must,cant B.may,mustnt C.can,cant D.must,mustnt 6.How was the Youth Club last night
14、,Mark?It was great fun.You _ come.A.must B.can C.should D.may (2010年江西省中考年江西省中考)7.I wonder if Ann will be here by 5 oclock.Her mother said she left home at 4:30.She _ be here at 5:10,and 5:15 at the latest.A.will B.would C.must D.should8.You _ meet Bruce sometime.I think you will like him.A.will B.are going to C.must D.have to (2011新评价新评价)ACDc