高中情态动词虚拟语气用法总结课件

Revisionfor

ModalVerbs

1●ThebasicusesofModalVerbs

6、Dare

7、Need8、oughtto

1、Can/could

2、May/might3、Must4、Shall/should

5、will/would

21.Can表示能力Theparrotcanspeakthreelanguages.表示允许CanIborrowthebookfromthelibrary.表示可能性ShanghaicanbeverycoldinMarch.Could过去式；语气更委婉2.Can与beabletoCan表示一般能力，而beableto表示经过学习训练可以达到的能力。3May表示可能性表示允许表示祝愿Might过去式；语气更委婉Eg.1.Shemaybestillwaitingforus.

2.MayIcomein?3.Mayyouhaveahappyholiday.41.Must表示肯定的猜测,但只用于肯定句，而mustn’t表示“禁止、不准”Eg:Shemustbethere.Youmustn’tsmokehere.2.Must、havetoMust表示主观Haveto表示客观需求“不得不….”Eg:1.Youmusteatitup.2.It’sraining,wehavetogohome.5Shall/should

1、第一、三人称疑问句中表示“请求或征求对方意见。Eg.ShallIgetyouacupofcoffee?2、第二、三人称陈述句中表示命令/警告威胁“应该，必须”Eg:Youshouldbehereontime.should过去式语气更委婉6Will/would1、表示意愿

I’lltrymybesttoworkoutthedifficulty.2、表示意图Whatwillyoudo?3、表示请示

Willyouhelpmetoputthesebooksinorder?71、情态动词:用于否定、疑问句、条件从句中。

eg.

1.Idarenotswim.(darenotdosth)2.Howdareyoudosuchfoolishthings?3.Iwon’tallowyoutoswimintheriver,evenifyoudaredoit.Dare2、实意动词:后加不定式。

eg.Shedarestojump.

8Need1、情态动词用于否定句，疑问句。Eg:Youneedn’tfinishyourhomeworktoday.NeedIcomehomeearly?2、实意动词用法似dare,用作不定式。

Maryneedstofinishreading.9Oughtto1、应该……

一般可与should互换

Eg:Lindyhasabadcold,weoughttovisither.2、其否定式为oughtnottoEg.Theoldoughtnottoeattoomuchsugar.101、情态动词的过去式与原形相比，多点礼貌，少点冒昧，语气更为委婉。2、情态动词在一般疑问句中的回答：①Canyousing?②MayIcomein?③MustIhandinthebooknow?④NeedIfinishitnow?Yes,Ican.No,Ican’t.Yes,youmay.No,youmustn’t.Yes,youmust.No,needn’t/don’thaveto.Yes,youmust.No,youneedn’t.11Thesubjunctive

mood

12定义：用来表示说的话不是事实，或者是不可能发生的情况，而是一种愿望，建议，假设的语气叫虚拟语气。13一、虚拟语气在条件状语从句中的用法（if条件句）现在过去未来did/werehaddonewould/could/should/might+V.(原)would/could/should/might+have+p.p.1.did/were2.shoulddo3.weretodowould/could/should/might+V.(原)Eg:IfIwereyou,Iwouldworkharder.Eg:IfIhadworkedhard,Iwouldhavepassedtheexam.Eg:1.Ifsheshouldnotcometomorrow,weshouldputoffthemeeting.

2.Ifitweretosnow,Iwouldbeprettyhappy.

从句

主句14Ifyou__________tomorrow,you_________findthenewmanagerworkingintheoffice.A.shouldcome;wouldB.wouldcome;wouldC.willcome;shouldD.comes;mightAIftheparents______atthehospitalearlieraftertheaccident,thechildwouldhavebeensaved.A.arrivesB.arriveC.hadarrivedD.hasarrivedC15Ididn’tseeyoursisteratthemeeting.Ifshe__________,shewouldhavemetmybrother.A.hascomeB.didcomeC.cameD.hadcomeD

Ifmylawyer_______herelastSunday,he_______mefromgoing.A.hadbeen;wouldhavepreventedB.hadbeen;wouldpreventC.were;wouldpreventD.were;wouldhavepreventedA16Ifyouhadtoldmeinadvance,I__________himattheairport.A.wouldmeetB.wouldhadmeetC.wouldhavemetD.wouldhavemeet

CIftherewerenorsubjunctivemood,English_____mucheasier.A.WillbeB.wouldhavebeenC.couldhavebeenD.wouldbeD17二、虚拟语气特殊句型：wish

+宾语从句现在：过去：未来：过去时(did/were)过去完成时(haddone)would/could/might+V.shouldIwishIwereabird.(现在)IwishIhadn’tmadesuchamistake.(过去)Wewishourparentswouldn’tpunish(惩罚）us.(未来)18Exercises:“HaveyouvisitedtheScienceMuseum?”“No,butIreallywishI_______.”

A.had B.did C.have D.willAIdidn’tgototheparty,butIdowishI_____there.A.wasB.wereC.hadbeenD.wentCIwishI_________youyesterday.A.seeB.didseeC.hadseenD.weretoseeC

19Thepictureexhibitionboredmetodeath.IwishI___________toit.A.hadn’tgoneB.haven’tgoneC.didn’tgoD.couldnothavegoneAHowIwishI__________that!Everybodypresentwasangrywithme.A.didn’tgoB.hadn’tdoneC.wouldn’tdoD.wasn’tdoingB20-----Heisabraveman.-----Yes,IwishI_________hiscourage.A.HaveB.hadC.willhaveD.wouldhaveBTomcantakehiscarapartandputitbacktogetheragain.Icertainlywishhe_____mehow.A.teachesB.willteachC.hastaughtD.wouldteachD21HowIwishI_________suchagoodchancebefore.A.didn’tseeB.hadn’tmissedC.metD.havegotBIwishtherain_________stop.A.willB.wouldC.mayD.canB222.wouldratherthat--现在：过去：未来：Iwouldratheryoupaidmenow.(现在)Iwouldratheryouhadgone,too.(过去)Don’tcome.Iwouldratheryoucametomorrow.(未来)过去时过去时过去完成时233.asif/though+从句现在：过去：过去时过去完成时Helooksasifheweredrunk.Theytalkedasiftheyhadbeenfriendsforyears.Shelovesthebabyasifitwereherownson.Itseemsasifitwerespring.Irememberthewholethingasifithadhappenedyesterday.24Whenapencilispartlyinaglassofwater,itlooksasifit__________.A.breaksB.hasbrokenC.werebrokenD.hadbeenbrokenCTheactoris58yearsold.Butheactsasifhe_______ayoungman.A.isB.willbeC.amD.wereD25Shesingsasifshe_________aboy.CA.isB.wasC.wereD.areWefeltasifwe_________eachotherforyears.CA.knewB.wereknowingC.hadknownD.haveknowing264.It’s(about/high)time+that--过去时你该走了。我们该睡觉了。It’shightimethatyouwent.It’shightimethatyouweregoing.It’stimethatwewenttobed.275.表示要求，命令，建议的虚拟语气。宾语从句。常见动词：一个坚持：insist两个命令：order,command

三个建议：advise,suggest,propose四个要求：demand,require,request,desire

这些动词后面的宾语从句要使用虚拟语气用法。即从句中的动词使用should+动词原形，或者将should省略。28我们建议Tom去休息一下。他坚决要求我到场。国王命令囚犯明天要实施死刑。他们要求我们派他们去那儿工作。WesuggestedthatTom(should)havearest.HeinsistedthatI(should)bepresent.Thekingorderedthattheprisoners(should)bekilledthenextday.Theyrequestedthatwe(should)sendthemtoworkthere.296.without和butfor构成虚拟。(butfor要不是)与现在事实相反，主句would/should/could/might+v原型与过去事实相反，主句would/should/could/might+havedoneWithoutsunlight,people’slifewouldbedifferentfromtoday.Butforyourhelp,Iwouldn’thavefinishedthework.Withoutyourhelp,Iwouldhavefailed.Butforwater,itwouldbeimpossibletoliveinthedesert.307.Ifonly…(要是…就好了)

与现在事实相反用过去式与过去事实相反用过去完成时与将来事实相反用should/could/would/might+v原型IfonlyIknewhisname!Ifonlywehadfollowedyouradvice!IfonlyIcouldseehimagain!要是我们的父母能和我们住在一起就好了。要是我没错过火车就好了！Ifonlyourparentscouldlivewithus!IfonlyIhadn’tmissedthetrain!318.It’snecessary/strange/natural/important+that---从句中的动词要用虚拟，即(should)+动词原形Itisimportantthatwe(should)masteraforeignlanguage.Itisstrangethatsherefusetocometotheparty.It’snecessarythatweshouldstudyhard.32三：虚拟语气假设条件句型注意点：1.假设条件从句谓语动词发生的时间与主句所假设的谓语动词不一致，叫做错综条件虚拟语气。主句和从句的谓语动词要依照假设的时间而顶。Iftheweatherhadbeenfiner,thecropswouldbegrowingstillbetter.Ifyouhadfollowedtheteacher’sadvice,youwouldn’tbeinthehospital.332.假设条件虚拟倒装。条件从句中有should，were，had三个助动词可以把if省略，并将这三个词提至句首。IfIwere