搜索
1.情态动词主要有:can,could,may,might,must,oughtto,shall,should,will,would,need,dare，hadbetter,etc.Someofuscanusethecomputernow,butwecouldn’tlastyear.Itwillbesunnyinthedaytime,butitcouldrainlateronthisevening.-----CanIgonow?-----Yes,youcan.Couldyouwaitafewdaysforthemoney?Canthisnewsbetrue?Howcanyoubesofoolish?表示“能力”表示“客观可能性”表示“请求和允许”表示“请求”,口语中代替can,使语气更委婉,主要用于疑问句,答语用can.----CouldIuseyourbiketomorrow?Yes,________.No,_______________.表示“惊异,怀疑,不相信的态度(主要用于否定句,疑问句和感叹句中)”youcanI’mafraid1.can和couldMayIwatchTVaftersupper?Yes,__________________./No,_______________________.MightIuseyourtelephone?MayIgohomenow?Itmaybetrue.Shemaycometomorrow.Hemighthavesomefever.Mayyousucceed!Mayyouhavemanymoredaysashappyasthisone!youmayYoumustn’t允许,许可禁止,阻止Might比May的语气更委婉表示可能性的推测,译为“大概,可能”用might时显得更加不肯定用于祈使句表示祝愿2.May和Might•Acomputer_______thinkforitself;itmustbetoldwhattodo.•A.can’tB.couldn’t•C.maynotD.mightnotA•may______________can____________表主观“可能”表客观“可能”•Cannot___________maynot__________不可能可能不3.may和can4I__________you,becauseIthoughtImustbewrong.A.darenotaskB.darenottoaskC.darenotaskingD.daretonotaskWeshouldbestrictwithourselves.Youshouldkeepyourpromise.Theyshouldhavearrivedbytwoo’clock.Ishouldadviseyounottodothat.Youaremistaken,Ishouldsay.AskTomtoringmeupifyoushouldseehim.ShouldIbefreetomorrow,I’llcome.Ifthingsshouldchangesuddenly,pleaseletmeknow.Whyshouldyoubesolatetoday?表劝告和建议应该表推测,“可能,应该”用于第一人称,表示说话人的一种谦逊,客气,委婉用于If从句中表示可能性很小的事情,译为“万一”“Why/How+should”表示说话人对某事不能理解.4should.•5.shall与should•--Excuseme,butIwanttouseyourcomputertotypeareport.•--You____havemycomputerifyoudon’ttakecareofit.•A.shan’tB.mightnot•C.needn’tD.shouldn’tAShall可表“警告、威胁、许诺、决心”等Whyshouldhethinkthat?Should表“劝告、建议”，译为“应当”；有时也表“预测”、“可能”或表示说话人的惊奇、愤怒、失望等感情。Whatshallwedonext?Shallwebeginourlessons?Shallthedriverwait?Shallhecomein?—Comein,please.Whenshallmyfatherbeabletoleavehospital?YoushallhavethebookwhenIfinishedit.Heshallbepunished.Youshallbepunishedifyouinsistondoingitthisway.用于第一,三人称,表征求对方意见或请示.用于第二,三人称陈述句中表命令,警告,允诺或威胁｝｛｝1)Hemustbereading,________?2)Whathesaidcan’tbetrue,____________?3)Hemusthavegoneoverthearticle,_______?4)Itmusthaverainedlastnight,___________?5).Youmustbetired,__________?6).Youmustgohomerightnow,___________?7).Youmusthaveseenthefilm,___________?8)Hemusthavemetheryesterday,_________?7.表猜测语气的反意疑问句的构成isn’theisithasn’thedidn’titaren’tyouneedn’tyouhaven’tyoudidn’tyou6.表对过去的推测:情态动词+have+down•对过去肯定推测:•对过去否定推测:•对过去的可能推测:•musthavedone•couldn’thavedone•mighthavedone典型错误1.Hemustn’tbeintheclassroom,forIsawhimontheplaygroundjustnow.()can’t2.Youmightleavethebaginthehall.()mighthaveleft3.Youmusthaveseenthefilmlastweek,haven’tyou?()didn’tyou4.ObamamusthavebeentoJapan,didn’the?()hasn’the情态动词的虚拟用法could本来可以做might本来也许可以needn’t原本不必做should本应该做shouldn’t本不应该做oughtto本应该做惋惜惋惜惋惜责备责备责备havedonehavedonehavedonehavedonehavedonehavedoneI_________________(pass)myexaminationeasilybutImadetoomanystupidmistakes.Ifwehadtakentheotherroad,we__________________(arrive)earlier.You(water)theflowers,forit’srainingnow.You(be)socareless.couldhavepassedmighthavearrivedneedn’thavewateredoughtnottohavebeen•1.昨晚那间屋子着火了，但那家人都逃了出来;•2.我不会告诉老师这件事;•3.办公室不能抽烟;•4.灯还亮着，他肯定在书房读小说;1.Thehousecaughtfirelastnight,butthefamilywasallabletoescape.翻译句子(利用情态动词)4.Thelightisstillon.Hemustbereadinginthestudy.3.Youmustn’tsmokeintheoffice.2.Iwon'ttelltheteacheraboutit.5.你又迟到了，你应该早点起床.6.我不知道，他肯定迷路了.7.我本来没有必要买这么多食物，只来了5个人8.昨晚一定下雨了，因为地面还是湿的。5.Youwerelateagain,youshouldhavegotupalittleearlier.翻译句子(利用情态动词)8.Itmusthaverainedlastnight,forthegroundiswet.7.Ineedn'thaveboughtsomanyfoods,onlyfivepeoplewerepresent.6.Idon'tknow,hemustbelost.