情态动词虚拟语气完整

助动词情态动词语气时态作用感情,语气,态度。不独立Iamhavingbreakfastnow.IcandoitYoumustfinishyourhomeworktonight.语气时态情态动词共性个性情态助动词半全实义动词can（could）-----beabletomay（might）-----beallowedtomust-----have（got)toshall（should）-----besupposedtowill（would）-----isgoingto情态全助动词不重复情态半助动词dareneedusedtohadbetterwouldratheroughtto-----besupposedto“敢”否定、条件、疑问句Shedarenotdoit.Dareyoualonegohomeat11pmintheevening？HeaskedmeifIdaregotherealone.否定、条件、疑问句Shedarenotdoit.Dareyoualonegohomeat11pmintheevening？HeaskedmeifIdaregotherealone.高考命题特点归纳1，情态动词的个性用法2，情态动词的共性用法3，测试对现在与过去的推测的试题很多注意：一定在要在全面了解的情况下，重点掌握情态动词的特殊用法推测助动词（情态助动词）特征不重复不改变两个助动词不能在一起不因主语人称变化而改变形态HecannotspeaksEnglishHedoesn’tcanspeakEnglish.HecannotspeakEnglishHecannotspeakEnglish.不独立1.表能力can与could4.表示推测2.表示“许可”3.表示“请求”Itcan’tbetrue.Canitbetrue？Howcanitbetrue？must多用于否定（不可能）疑问句（特殊、一般）1.Michael____beapoliceman,forhe’smuchtooshort.A.needn’tB.can’tC.shouldD.may2.Mr.Bushisontimeforeverything.How____itbethathewaslatefortheopeningceremony?A.canB.shouldC.mayD.mustBAmusthaveto必须Eg:1)Youmustfinishyourhomeworkfirst.2)Childrenmustn’tspeaklikethattotheirparents.2.回答must所在的一般疑问句时，否定回答用“needn’t”“don’thaveto”.Eg:---Mustwefinishtheworktomorrow?---No,youneedn’t/don’thaveto,butyoumustfinishitinthreedays.3.表推测，用于肯定句，意为“一定”“务必”。Eg:1)Bettymustbeinthenextroom.2)Hemustbewateringtheflowersinhisgarden.must•必须•猜测needn’thavetooughttoshould义务、责任劝告、建议shall命令本应该shouldEg:It’soddthatyouandIshouldhavethesamename.Eg:Ican’timaginethatawell-behavedgentlemanshouldbesorudetoalady竟然形容词、Idon’tknowwhyshouldEg:I‘vebroughtmyumbrellaincaseitshouldrain.万一Incase、lest第二、三人称条约约定第一条：大便后要洗手Youshallwashyourhandsaftertakingadung.shall1.Shall与第一、三人称连用，疑问句征求与第一人称，肯定句决心2，will表意志、意愿，习惯性Eg:1)Shallwebeginourdiscussion?2)IfIwannadosomething，Ishalldo.shallwill习惯性，某种倾向，will表“请求、建议”等，用would比用will委婉，客气些时态搭配•1,Accidentswillhappen.•2,Adrowningmanwillcatchatastraw.将wouldwill现在，would过去习惯性Choosethebestanswers:1.Ithoughtyou______likesomethingtoread.SoIhavebroughtyousomebooks.A.oughtB.mightC.wouldD.mustMay(might)请求、许可猜测（可能）may祝愿might可用于现在或过去时间其所表示的可能性较may低。表“祈愿”•1,祝你玩的开心。•Mayyouenjoyyourself.•2,祝你成功。•Mayyousucceed.1.SorryI'mlate.I_____haveturnedoffthealarmclockandgonebacktosleepagain.A.mightB.shouldC.canD.will2.Peter_____comewithustonight,butheisn’tverysureyet.A.mustB.mayC.canD.willAB推测must，can，can’t，may/might情态动词+havedone过去的猜测情态动词+do现在、将来的猜测一、表示对过去事情的推测或估计1.musthavedone“想必或肯定已经做了某事”2.may/mighthavedone“可能/大概已经做了某事”3.can’t/couldn’thavedone“不可能已经做了某事”•2.–ThatmanmustbeSarah’shusband.--No,he_____beherhusband.Sheisstillsingle.A.can’tB.mustn’tC.maynotD.oughtto•3.Peter_____comewithustonight,butheisn’tverysure.A.mustB.mayC.canD.will4.–What____itbe?--It______beamailbox,foritismoving.It______beacar.A.can;can’t;mustB.can;can;mustC.can;mustn’t;mustD.must;mustn’t;can5.–Look,someoneiscoming.Guess__________.--Jack.He’salwaysontime.A.whocanitbeB.whohemayC.whohecanbeD.whoitcanbe6.–IsawMaryinthelibraryyesterday.--You_____her.Sheisstillabroad.A.mustn’tseeB.can’thaveseenC.mustn’thaveseenD.couldn’tsee7.David,you_____playwiththevaluablebottle,you_______breakit.A.won’t;can’tB.mustn’t;mayC.shouldn’t;mustD.can’t;shouldn’t•8.SusanrefusestomarryJacknow.She______hermind.A.mustchangeB.shouldhavechangedC.musthavechangedD.wouldhavechanged9.Sue________cometogetherwithustonight,butsheisn`tverysureyet.A.mustB.mayC.needD.will•10.AuntMargaret_________thetrain,otherwiseshewouldhavearrivedherebynow.A.musthavemissedB.shouldhavemissedC.hadmissedD.mightmiss共性推测must，can，can’t，may，mightRevision肯定句中，表示对当前行为、状态、情况的推测用：must/may/might/could+do/be否定句用cannot,couldnot,maynot,mightnot.疑问句用can猜测语气：mustmaymight/could表示对此时此刻正在进行的动作的推测用：must/may/might/could+bedoingThelightison.Hemust/may/might/couldbestudying.Thelightisn’ton.Hecannot/maynot/mightnot/couldnotbestudying.Thelightison.Canhebestudyingnow?Whatdoyouthinkthepigisdoing?Hemust/may/might/couldbedoingmorningexercises.……PracticeCantheybeplayingnow?Yes,theymust/may/might/couldbeplayingnow.No,theycannot/couldnot/maynot/mightnotbeplayingnow.Theymustbefightingnow.Whatdoyouthinkheissingingnow?Hemust/may/might/couldbesingingONLYYOUnow表示对过去发生事情的推测用：must/may/might/could+havedone/beenShepassedtheexam.Shemusthaveworkedveryhardbeforetheexam她通过了考试。她考试前一定很用功。他们昨天不可能那么快完成工作。Theycan’thavefinishedtheworksosoonyesterday.她可能在我到这之前就离开了。Shemay/mighthaveleftbeforeIcamehere.情态动词共性个性•1.—______itbeLiPingwhobroketheglass?•—No.It______beWuDongwhodidit.•A.Can;mustB.Must;need•C.May;mustD.Need;can•A•2.—Don’tforgettovisitmewhenyoucometoBeijing.•—______.•A.Idon’tB.Iwon’t•C.Ican’tD.Ihaven’t•B•3.—CouldIuseyourbike?•—Yes,surelyyou______.•A.mightB.will•C.canD.should•C•4.Herbrother______beathomenow,becausehewasseenplayingbasketballinthestadiumjustnow.•A.mustn’tB.needn’t•C.can’tD.shouldn’t•C•5.—Whencanyougetmycarrepaired?Ineedittomorrowmorning.—It______bereadyby8:00.•A.canB.need•C.mightD.should•D建议•6.—Areyoucomingfordinner?•—I’mnotquitesure.I______gotomyuncle’sinstead.•A.mustB.would•C.shouldD.might•D•7.Don’tbelievehim.Whathesaid______betrue.A.mustn’tB.needn’tC.shouldn’tD.maynotD•8.—______Igohomenow,si