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1、GrammarModal Verb情态动词有一定的意义，但没有人称和情态动词有一定的意义，但没有人称和数的变化，不能独立使用，它和后面的动词数的变化，不能独立使用，它和后面的动词构成谓语构成谓语除除ought和和have外，后面只能外，后面只能接不带接不带to的不定式。的不定式。 只作情态动词的只作情态动词的can/could,may/might,oughtto,must可情态可实义的可情态可实义的need,dare可情态可助动词的可情态可助动词的shall/should,will/would相当于情态动词的相当于情态动词的haveto,usedtoEveryoneherecanspeakEn
2、glish.-CouldIhavealookatyournotebook?-Yes,youcan./No,youcant.ItcantbeMary.Shehasfallenill.Canthisnewsbetrue?Wherecantheybe?Shecanthaveleftschool,forherbikeisstillhere.Themonkeyslooksweet,buttheycanbeverynaughty.Shecan/isabletosingthesonginEnglish.IcouldreadwhenIwasfour.Thefirespreadthroughthehotelqu
3、icklybuteveryonewasabletogetout.情态动词情态动词 含义含义否定式否定式注意点注意点can / could表能力表能力“能，会能，会”cant“不会，不能不会，不能”区别区别 be able to表许可表许可“可以可以”cant “不可以，不许不可以，不许”代替代替may表推测表推测“可能可能”cant “不可能不可能”主要用于主要用于否定、否定、疑问句疑问句中中1表示某人通过努力克服困难做成某事表示某人通过努力克服困难做成某事,要用要用was/wereableto.2could,might,would表委婉语气用于疑问句表委婉语气用于疑问句,答语仍须用答语仍须用
4、can,may,will.3can用于肯定句中用于肯定句中,可表示可表示”有时可能有时可能”-MayIuseyourpencil?-Yes,youmay./No,youmustnt.Shemaynotbeworkingnow.Johnmightbeathomenow.Helenmaygoonthetripwithus,butsheisntverysureyet.Shemay/mighthavereaditinthepaper.Hemaynothavefinishedreadingthebook.情态动词情态动词 含义含义否定式否定式注注意意点点may /might表许可表许可“可以可以”mus
5、tnt “不许，严禁不许，严禁”口语中也可用口语中也可用cant表推测表推测“可能可能”May not“可能不可能不”主要主要用于用于肯定肯定句，句，不不能用在能用在疑问疑问句句 （maynot可能不）可能不）IfyouwillhelpmewithmyEnglish,Iwillbeveryhappy.IpromisedthatIwoulddomybest.Willyoutellmesomethingaboutyourhometown?Wouldyoupleasespeakagainmoreslowly？Hewillalwaystakeawalkaftersupper.Duringthevaca
6、tionhewouldoftenvisitme.情态动词情态动词用用法法will表请求表请求(第二人称第二人称)表意志表意志,意愿意愿表某种倾向表某种倾向或习惯或习惯would更客气的更客气的请求请求过去的过去的意志意志,意意愿愿过去的倾向过去的倾向或习惯或习惯Shallwesetoffnow?YoushalldoasIsay.Tellhimthatheshallhavethebooktomorrow.Youshallbepunishedifyoudothatagain.Youshouldnt/oughtnttosmokesomuch.Sheshouldnthaveleftwithoutsay
7、ingaword.Itsfiveoclock.Johnshouldbeathomenow.Wehavepreparedafridgeoffoodanddrinks.Thatoughttobeenoughfortheparty.Itsapitythatheshouldbesorudetoalady.情态动词情态动词 用用法法shall征求对方意见征求对方意见(第一第一,三人称三人称)表示命令表示命令,警告警告,威胁或威胁或允诺允诺(第二第二,三人称三人称) should / ought to表示劝告表示劝告,建议建议,命令或责任命令或责任“应该应该,必须必须”表示推测表示推测,“理应理应,估计估
8、计,大大概概,可望可望”should 还可还可表示表示“竟然竟然”-MustIfinishallassignmentsatatime?-Yes,youmust./No,youneednt.IdontlikethisTVset.Wemustbuyanewone.Therewasnomorebus.Theyhadtowalkhome.Youmustbethenewteacher.Thereisnobodyhere.Theymusthaveallgonehome.MyMP4isntinmybag.WherecanIhaveputit?John,lookatthetime.Mustyouplaythe
9、pianoatsuchalatehour?情态动词情态动词 含义含义否定式否定式注意点注意点must表必要表必要“必须必须”neednt“不必不必”( 区别区别 have to)有时表有时表“偏要偏要”表推测表推测“一定一定” cant“不可不可能能”只能只能用于用于肯定肯定句，句，不能不能用于用于否定、疑问句否定、疑问句1.Acomputer_thinkforitself;itmustbetoldwhattodo.A.cantB.couldntC.maynotD.mightnot2.Thefirespreadthroughthehotelveryquicklybuteveryone_geto
10、ut.A.hadtoB.wouldC.couldD.wasabletoAD4.Thatbigcinema_seat2,000people.A.canB.shouldC.oughttoD.isabletoA5.CouldIborrowyourdictionary?Yes,ofcourseyou_.A.mightB.willC.canD.should6.MightIwatchTVaftersupper?Yes,you_.A.mayB.mustC.mightD.canCA7.You_returnthebooknow.Youcankeepittillnextweekifyoulike.A.cantB.
11、mustntC.needntD.maynot8.Johnny,you_playwiththeknife,you_hurtyourself.A.wont;cantB.mustnt;mayC.shouldnt;mustD.cant;shouldntCB9.-Willyoustayforlunch?-Sorry,_.Mybrotheriscomingtoseeme.A.ImustntB.IcantC.IneedntD.Iwont10.-MayIpickaflowerinthegarden?-_.A.No,youneedntB.Not,please.C.No,youmustntD.No,youwont
12、BC11.Putonmoreclothes.Youbefeelingcoldwithonlyashirton. A.canB.couldC.mustD.would12.MustIdrivetohishouseandpickupthechildren?No,. A.youshouldntB.youmightnot C.youneednt D.youmustntCC13.WedidntseeTomatthemeetingyesterday.Heit. A.mustnthaveattended B.cannothaveattended C.neednthaveattended D.wouldhave
13、notattended14.Weplaychessthanbridge.Someofusdontknowhowtoplaybridge. A.hadbetter B.wouldbetter C.wouldrather D.hadratherBA15.Thereissomeoneknockingatthedoor.itbeTom? A.CanB.MustC.ShouldD.Oughtto16.Twoyearago,myhusbandboughtmeabicycle.Ifyouliveintown,itisoftenfasterthanacarandyouworryaboutparking.A.m
14、ustnotB.maynotC.shouldnotD.donthavetoAD17.-IsJohncomingbytrain?-Heshould,buthe_not.Helikesdrivinghiscar.A.mustB.canC.needD.may19.-Iheardtheywentskiinginthemountainslastwinter.-It_truebecausetherewaslittlesnowthere.A.maynotbeB.wontbeC.couldntbeD.mustntbeDC全国高考试题回放1.Aleft-luggageofficeisaplacewherebag
15、s_beleftforashorttime,especiallyatarailwaystation.A.shouldB.canC.mustD.will2.How_yousaythatyoureallyunderstandthewholestoryifyouhavecoveredonlypartofthearticle?A.canB.mustC.needD.may3.Theroomissodirty._wecleanit?Ofcourse.A.WillB.ShallC.WouldD.DoBAB4.MyEnglish-Chinesedictionaryhasdisappeared.Who_have
16、takenit?A.shouldB.mustC.couldD.would5.IsJohncomingbytrain?Heshould,buthe_not.Helikesdrivinghiscar.A.mustB.canC.needD.may6.Iheardtheywentskiinginthemountainslastwinter.-It_truebecausetherewaslittlesnowthere.A.maynotbeB.wontbeC.couldtbeD.mustntbeCDC10.Iwasreallyanxiousaboutyou.You_homewithoutaword.A.m
17、ustntleaveB.shouldnthaveleftC.couldnthaveleftD.needntleave11.Youcantimaginethatawell-behavedgentlemen_besorudetoalady.A.mightB.needC.shouldD.would12.Writetomewhenyougethome._.A.ImustB.IshouldC.IwillD.IcanBCC13.Mr.Bushisontimeforeverything.How_itbethathewaslatefortheopeningceremony?A.canB.shouldC.may
18、D.must14.AreyoucomingtoJeffsparty?Imnotsure.I_gototheconcertinstead.A.mustB.wouldC.shouldD.might15.MysistermethimattheGrandTheatreyesterdayafternoon,sohe_yourlecture.A.couldnthaveattendedB.neednthaveattendedC.mustnthaveattendedD.shouldnthaveattendedADA16.Sorry,Imlate.I_haveturnedoffthealarmclockandg
19、onebacktosleepagain.A.mightB.shouldC.canD.will17.Therewasalotoffunatyesterdaysparty.You_come,butwhydidntyou?A.musthaveB.shouldC.needhaveD.oughttohave18.WhencanIcomeforthephotos?Ineedthemtomorrowafternoon.They_bereadybyby12:00.A.canB.shouldC.mightD.needADB19.IstayedatahotelwhileinNewYork.-Oh,didyou?Y
20、ou_withBarbara.A.couldhavestayedB.couldstayC.wouldstayD.musthavestayed20.Thefirespreadthroughthehotelveryquicklybuteveryone_getout.A.hadtoB.wouldC.wasabletoD.could21.Jack_yet,otherwisehewouldhavetelephonedme.A.mustnthavearrivedB.shouldnthavearrivedC.canthavearrivedD.neednthavearrivedACC22.Whenhewast
21、here,he_gotothatcoffeeshopatthecornerafterworkeveryday.A.wouldB.shouldC.hadbetterD.might23.Sir,you_besittinginthiswaitingroom.Itisforwomanandchildrenonly.A.oughtnttoB.cantC.wontD.neednt24.Itsnearlysevenoclock.Jack_behereatanymoment.A.mustB.needC.shouldD.canAAC25.ItoldSallyhowtogethere,butperhapsI_fo
22、rher.A.hadtowriteitoutB.musthavewrittenitoutC.shouldhavewrittenitoutD.oughttowriteitout26.Michael_beapoliceman,forheismuchtooshort.A.needntB.cantC.shouldD.mayCBDiscoveringusefulstructuresEx.1:1.Mostancientfestivalswouldcelebratetheendofcoldweather2.Sometimescelebrationswouldbeheldafterhuntershadcaug
23、htanimals.3.Atthattimepeoplewouldstarveiffoodwasdifficulttofind4.ortosatisfytheancestors,whomightreturneithertohelportodoharm.5.FortheJapanesefestivalObon,peopleshouldgotocleangraves6.Itisnowachildrensfestival,whentheycandressupandgo7.thechildrenmightplayatrickonthem.8.Festivalscanalsobeheldtohonour
24、famouspeople.9.HarvestandThanksgivingfestivalscanbeveryhappyevents.10.InEuropeancountries,peoplewillusuallydecoratechurchesandtownhalls11.Somepeoplemightwinawardsfortheirfarmproduce12.AttheSpringFestivalinChina,peoplemaygivechildrenluckymoneyinredpaper.13.Thesecarnivalsmightincludeparades,dancinginthestreets14.Thecountrylooksasthoughitmightbecoveredwithpinksnow.
