英语情态动词完成时.pptx

会计学1英语情态动词完成时英语情态动词完成时情态动词+have done1)must have done 对过去已经发生的事的肯定推测.(只用于肯定句)He must have gone to bed,for the light was out.Where is my pen?I must have lost it.第1页/共32页2)can/could have done 对过去行为的怀疑和不肯定的推测.(常用于否定句和疑问句)在否定句意为“不可能,不会是”Mick cant/couldnt have found hiscar,for he came to work by bus this morning.(不可能/不会找到车)Can she have heard from you?她可能收到你的信吗?第2页/共32页注意:could+have done 具有两层意思 表示对过去发生的事的揣测,可与can互换.表示对过去能做的事而没有做,不可与can替换.意为:“本来可以做/能做”-I stayed at a hotel while in New York.-Oh.Did you?You could have stayed with Barbara.第3页/共32页有时含有责备或遗憾的意思.You could have done it better.You could have come earlier.你本可以把这件事做得更好.你本可以来的更早.第4页/共32页3)may/might have done 表示推测,可能性更小,主要用于肯定句.译为:“或许”He may/might have gone to the library.他或许已经去图书馆了.might+have done 有时含有委婉的责备或庆幸等感情.这时不能用mayYou might have told me earlier.你本可以早点把消息告诉我的.第5页/共32页4)should have done 表示本应该做 但却未做,含有“后悔,遗憾,责备,批评”之意.You should have been more careful.你本应该更细心些.You shouldnt have told him about it.你本不该告诉他这事.第6页/共32页5)neednt have done 表示“本来用不着,本不必”之意.You neednt have asked him.(But you asked him.)You neednt have come.I have finished the work.第7页/共32页第8页/共32页1.-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 stayedA第9页/共32页2.I didnt see her in the meeting room this morning.She_ at the meeting A.mustnt have spoken B.shouldnt have spoken C.neednt have spoken D.couldnt have spokenD第10页/共32页3.He_you more help,even though he was busy.A.might have given B.must have given C.can have given D.may giveA第11页/共32页4.-I saw our teacher in the office just now.-You_her,she is still abroad.A.cant have seen B.mustnt have seen C.neednt have seen D.shouldnt have seenA第12页/共32页5.Kate is already two hours late.What_to her?A.can have happened B.may have happened C.should have happened D.must have happenedA第13页/共32页6.We_last night,but we went to the concert instead.A.must have studied B.might study C.should have studied D.would studyC第14页/共32页7.There was plenty of time.She_.A.mustnt have hurried B.couldnt have hurried C.mustnt hurry D.neednt have hurriedD第15页/共32页8.Sorry,Im late.I_have turned off the alarm clock and gone back to sleep again.A.might B.should C.can D.willA第16页/共32页9.Yesterday,Jan walked away from the discussion.Otherwise,she_something she would regret late.A.has said B.said C.might say D.might have saidD第17页/共32页10.-Did you scold him for his mistake?-Yes,but _it.A.Id rather not do B.Id better not do C.Id better not have done D.Id rather have not doneC第18页/共32页11.I didnt hear the phone.I_asleep.A.must be B.must have been C.should be D.should have beenB第19页/共32页12.Janny_have kept her word.I wonder why she changed her mind.A.must B.should C.need D.wouldB第20页/共32页13.Tom ought not to_me your secret,but he meant no harm.A.have told B.tell C.be telling D.having toldA第21页/共32页14.-Could I borrow your dictionary?-Yes,of course you _.A.might B.will C.can D.shouldC第22页/共32页15.-Shall we go skating or stay at home?-Which_do yourself.A.do you rather B.would you rather C.will you rather D.should you ratherB第23页/共32页16.I told Sally how to get here,but perhaps I_for her.A.had to write it out B.ought to write it out C.must have written it out D.should have written it outD第24页/共32页17.The fire spread through the hotel very quickly but everyone_get out.A.had to B.would C.could D.was able toD第25页/共32页18.When he was there,he_go to that coffee shop at the corner after work every day.A.would B.should C.had better D.mightA第26页/共32页19.It is strange that he_such a silly thing.A.must have done B.may have done C.could have done D.should have doneD第27页/共32页20.-_he turn up the radio?-Yes,please.A.Will B.Would C.Does D.ShallD第28页/共32页21.-Jack fell off a ladder yesterday,but he is all right.-Hes lucky.He_himself badly.A.could wound B.would have wounded C.could hurt D.would woundB第29页/共32页22.-Could I use your dictionary?-_.A.Please not B.Yes,you do C.No,you might not D.Please do as yoursD第30页/共32页23.-_the young man there be her cousin?-He_be,but Im not sure.A.Can;may B.May;wont C.Can;must D.will;dontA第31页/共32页