情态动词考点.pptx

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,#,Welcome to our class,Modal,Verbs,情态动词,常用的情态动词,can,（,could,）,may,（,might,）,shall,（,should,）,will,（,would,）,must,（,must,）,dare,（,dared,）,need,（,need,）,have to,ought to,be able to,used to,had better,情态动词考点,:,1.,表示能力、许可的情态动词的用法。,2.,表示否定的情态动词的用法。,3.shall,和,will的多种意义的区别。,4.,情态动词短语的使用。,5.,情态动词表示推测的使用。,6.,虚拟语气中情态动词的使用。,7.,部分情态动词的问与答,。,8.,情态动词其他用法要点。,表示能力,:,can,could,be able to,*,be able to,能用于,各种,时态,can/could,只能表示,现在,或,过去,的,能力,*,was/were able to,:“,设法做成某事”,相当于,managed to do sth.,succeeded,in doing sth,.,1.,表示能力、许可的情态动词的用法。,1.A computer _ think for itself;it must,be told what to do.,A.cant B.couldnt,C.may not D.might not,2.The fire spread through the hotel very quickly,but everyone _ get out.,A.had to B.would,C.could D.was able to,A,D,3.They will _ run this machine on their,own in three months.,can B.could C.may D.be able to,4.That big cinema _ seat 2,000 people.,A.can B.should C.ought to D.is able to,D,A,表示许可,:,may/might,can/could,*,might,could,比较,委婉,一般多用于,疑问句,.,*,can,may,表达的语言比较随便,.,*,在以,could,might,表示,征询对方意见,或,表示请求,时，回答应相应使用,can,may.,5.Could I borrow your dictionary?,Yes,of course you _.,A.might B.will C.can D.should,6.Might I watch TV after supper?,Yes,you _.,A.may B.must C.might D.can,C,A,2.,表示否定的情态动词的用法,:,部分情态动词的否定式是情态动词中的考点之一,mustnt,neednt,cant,may not,shouldnt,不准,禁止,没必要,(=dont have to),不能,;,不可能,不可以,;,可能不,不应该,(=ought not to),7.You _ return the book now.You can,keep it till next week if you like.,cant B.mustnt C.neednt D.may not,8.Johnny,you _ play with the knife,you,_ hurt yourself.,A.wont;cant B.mustnt;may,C.shouldnt;must D.cant;shouldnt,C,B,9.-Will you stay for lunch?,-Sorry,_.My brother is coming to see me.,A.I mustnt B.I cant,C.I neednt D.I wont,10.-May I pick a flower in the garden?,-_.,A.No,you neednt B.Not,please.,C.No,you mustnt D.No,you wont,B,C,情态动词：,shall,will,的多种意义,:,shall/will+,动词原形,:,*,shall,可表示必须、命令、警告或征询,意见,.,*,will,可,表示意愿、常出现的,动作,在,疑问句中表示请求和建议.,*,均可表示将来。过去时为,should,would.,3.,shall,用在主语是第一和第三人称的疑问句中表示征求对方的允诺,；用于二、三人称表示命令、警告、允诺或威胁，也用于宣布法律、规定时。,Shall,I open the window?,Shall,he come in or wait outside,?,“The interest,shall,be divided into five parts,according to the agreement made by both sides,”declared the judge.,will,用在主语是第二人称的疑问句中,表示“请求”,Would,you pass the salt,please?,Will,you please pass the salt?,will,用于主语是各人称的陈述句中,表示“意愿、倾向”,-The phone is ringing.,-I,ll,get it.,11.He _ be punished if he disobeys如果他不服从,就要受到惩罚,.,12.We are not going to quarrel at all if you _,only let me speak.,只要你让我说话,我们根本就不会吵架,.,13.-Sir,_ he go or stay?,-Let him go.,A.will B.shall C.might D.could,shall,will,B,14.The door _ open.,这门经常打不开,.,15.Ronald _ stay in his small garden for,a long time every day in the past.,A.could B.might C.should D.would,16.You _ have the book after I read it.,我看完以后一定把这本书给你,.,wont,D,shall,4.,情态动词短语的使用,:,would like to do,would rather do,would rather+sb.+did sth.,would prefer to do.,had better do.,宁愿,改错,:,1.Would you like having some tea?,2.Id prefer going to the lecture this evening.,3.Id rather you to go to the meeting.,4.He would rather to die than to give in.,5.Youd better to have your hair cut today.,Would you like to have some tea?,Id prefer to go to.,you went to.,He would rather die than give in.,Youd better have.,5.,表示推测,情态动词的重要用法,.,1.You must be Mr Smith-I was told to expect,you here.,2.He must have known what we wanted.,3.We may have read the same report.,4.He cant have slept through all that noise.,5.Theres someone outside-who can it be?,6.What can they be doing?,7.These pills might help to cure your disease.,8.You could be right,I suppose.,9.Accidents,can,happen on such rainy days.,Peter,may,come with us tonight,but he isnt sure yet.,（客观的可能性）,（实际的可能性）,10.-When can I come for the photos?I need them,tomorrow afternoon.,-They _ be ready by 12:00.,should,（表示确定或可能有的未来或期望）,不同的“肯定”程度可按下列层次排列：,He,is,at home.(,事实,),He,must be,at home.,（非常肯定的推断）,He,could be,at home.,（很可能）,He,ought to be,at home.,（很可能）,He,may be,at home.,（仅仅可能而已）,He,might be,at home.,（或许,非常不确定）,He,might not be,at home.,（也许不在家）,He,may not be,at home.,（比,might,可能）,He,couldnt be,at home.,（很可能不在家）,He,cant be,at home.,（一定不在家）,He,isnt,at home.,（事实）,表示推测,情态动词的重要用法,.,肯定的推测,可能的推测,否定的推测,疑问的推测,must,对将来,对现在,对过去,情态动词,may,might,could,cant,couldnt,can,could,+V.,+V,.,+have done,常见,must be +be doing,+V.+V.,+have done,+be doing,可以,用,not,表示“可能不”,+V.+V.,+have done,+be doing,+V.+V.,+have done,+be doing,高考考题,:,-Is John coming by train?,-He should,but he _ not.He likes driving his car.,A,.may B.,can,C.,need,D.must,2.,-Do you know where David is?I couldnt find him,anywhere.,-Well.He _ have gone farhis coats still here.,A.shouldnt B.mustnt C.cant D.wouldnt,3.I didnt hear the phone.I _asleep.,A.must be B.must have been,C.should be D.should have been,A,C,B,4.-There were already five people in the car,but they managed to take me as well.,-It _a comfortable journey,A.cant be B.shouldnt be,C.mustnt have been D.couldnt have been,5.Its nearly seven oclock.Jack _be here at,any moment.,A.must B.need C.should D.could,D,C,6.,用于虚拟语气的情态动词,:,should/ought to have done,shouldnt/oughtnt to have done,might/could have done,neednt have done,本应该做,（但事实没做）,本来不应该做,（但事实却做了）,本来可以做,（但事实没这样做）,本来不需要做,（但事实却做了）,1.I was really anxious about you.You _ home without a word.,A.mustnt leave B.shouldnt have left,C.couldnt have left D.neednt leave,2.There was a lot of fun at yesterdays party.You _ come,but why didnt you?,A.must have B.shouldC.need have D.ought to have,B,D,3.I stayed at a hotel while in New York.,-Oh,did you?You _ with Barbara.,A,.could,have stayed B,.could,stay,C,.would,stay D,.must,have stayed,4.I told Sally how to get here,but perhaps I _ for her.,had to write it out,B.must have written it out,C.should have written it out,D.ought to write it out,A,C,7,、部分情态动词的问与答,（,1,）,Need I?,Yes,you must,.,No,you neednt.,(2)Must I,?,Yes,you must.,No,you needn,t.,(No,you don,t,have to.),(3)May I,?,Yes,you may.,=Yes,certainly/,of course.,No,you may not.,(4)Could I,?,Yes,you can.,No,you can,t.,(5)Might I,?,Yes,you may.,No,you may not.,(6)Shall I,?,Yes,please.,No,thanks.,No,you needn,t.(,委婉）,No,you can,t.,（反对）,No,you mustn,t.,（禁止）,used to,与,would,的区别：,1.He _ take a walk near the forest in the evening.,used to,/,would,(,表示,过去重复的,习惯,),2.She isnt what she _be.,We _,sit in the yard every evening and listen to his story.,u,sed to,(,表示今昔对比，不可用,would),would,(,表示过去的重复性行为，常与,often,every,等连用,),3.There _ be a park here.,u,sed to,(,表示过去的状态，只能用,used to,，不可用,would),8.,情态动词其他用法要点,情态动词可表示某一特定的语气或态度,1.This _be done by him.,这不可能是他做的。,_ this be true?,c,ant,Can,（表示惊异、怀疑、不相信的态度,）,2._ you return in safety.,愿你平安归来。,May,（用于祈使句表示祝愿）,3.I dont know why you _ think that I did it.,should,（表示说话人对某事不能理解、感到意外、惊异等意思，译为“竟会”）,4.-How old are you,madam?,-If you _ know,Im twice my sons age.,must,（表示偏要、硬要做某事）,情态动词的一些惯用法,cannottoo/enough,“无论怎么,也不 过分”“越,越好”,You,cannot,be,too,careful.,你记的英语单词越多越好。,You,cannot,remember,enough,English words.,2.cannot(help)but do sth.,“不得不，只好”,我不得不钦佩你的勇气。,I,cannot but,admire your bravery.,3.may well do,“完全能，很可能”,她的模样变化太大，你很可能认不出她了。,Her appearance has changed so much that you,may well,not recognize her.,4.may/might as well do,“最好，倒不如”,你最好留在这里过夜。,You,may as well,stay here over the night.,高考题：,-Who is the girl standing over there?,-Well,if you _ know,her name is Mable.,A.may B.can C.must D.shall,2.-I heard they went skiing in the mountains last winter.,-It _ true because there was little snow there.,A.may not be B.wont be,C.couldnt be D.mustnt be,3.You cant imagine that a well-behaved gentleman _ be so rude to a lady.,A.might B.need C.should D.would,C,C,C,He was a good swimmer,so he _ swim to the river bank,when the boat sank.,Peter _ come with us tonight,but he isnt very sure yet.,There was plenty of time.She _ have hurried.,You neednt go to see my brother off,but I _.,_ we share the oil with them?,-Must he come to sign this paper himself?,-Yes,he _.,7.He _ have completed his work;otherwise,he wouldnt be enjoying himself by the seaside.,8.He paid for a seat,when he _ have entered free.,Fill in the blanks:,was able to,may,neednt,must,Shall,must,must,could,Good-bye!,