人教版高一英语必修三Unit2情态动词课件grammar电子版本

《人教版高一英语必修三Unit2情态动词课件grammar电子版本》由会员分享，可在线阅读，更多相关《人教版高一英语必修三Unit2情态动词课件grammar电子版本（34页珍藏版）》请在装配图网上搜索。

1、人教版高一英语必修三人教版高一英语必修三Unit2-Unit2-情态动词课件情态动词课件-grammargrammarGrammarModal Verb 情态动词有一定的意义，但没有人称和数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，它和后面的动词构的变化，不能独立使用，它和后面的动词构成谓语成谓语除除ought 和和have外，后面只能接不外，后面只能接不带带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,ought to,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/sho

2、uld,will/would相当于情态动词的相当于情态动词的 have to,used toEveryone here can speak English.-CouldIhavealookatyournotebook?-Yes,youcan./No,youcant.ItcantbeMary.Shehasfallenill.Canthisnewsbetrue?Where can they be?She cant have left school,for her bike is still here.The monkeys look sweet,but they can be very naugh

3、ty.Shecan/isabletosingthesonginEnglish.IcouldreadwhenIwasfour.The fire spread through the hotel quickly but everyone was able to get out.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

4、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/were able to.2 could,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 can,may,will.3 can 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.Helen may go on the trip with us,but she isnt very sure y

5、et.She may/might have read it in the paper.He may not have finished reading the book.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”mustnt“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（may not 可能不）可能不）IfyouwillhelpmewithmyEnglish,Iwillbeveryhappy.Ipromisedtha

6、tIwoulddomybest.Willyoutellmesomethingaboutyourhometown?Wouldyoupleasespeakagainmoreslowly？He will always take a walk after supper.During the vacation he would often visit me.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

7、?YoushalldoasIsay.Tellhimthatheshallhavethebooktomorrow.Youshallbepunishedifyoudothatagain.Youshouldnt/oughtnttosmokesomuch.Sheshouldnthaveleftwithoutsayingaword.Itsfiveoclock.Johnshouldbeathomenow.Wehavepreparedafridgeoffoodanddrinks.Thatoughttobeenoughfortheparty.Itsapitythatheshouldbesorudetoalad

8、y.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,估估计计,大概大概,可望可望”should 还可还可表示表示“竟然竟然”-MustIfinishallassignmentsatatime?-Yes,youmust./No,youneednt.I dont like this TV set.We must buy a new one.There was

9、 no more bus.They had to walk home.Youmustbethenewteacher.Thereisnobodyhere.Theymusthaveallgonehome.MyMP4isntinmybag.WherecanIhaveputit?John,look at the time.Must you play the piano at such a late hour?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

10、能不可能”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_getout.A.hadtoB.wouldC.couldD.wasabletoAD4.Thatbigcinema_seat2,000people.A.canB.shouldC.oughttoD.isabletoA5.CouldIborrowyourd

11、ictionary?Yes,ofcourseyou_.A.mightB.willC.canD.should6.MightIwatchTVaftersupper?Yes,you_.A.mayB.mustC.mightD.canCA7.You_returnthebooknow.Youcankeepittillnextweekifyoulike.A.cantB.mustntC.needntD.maynot8.Johnny,you_playwiththeknife,you_hurtyourself.A.wont;cantB.mustnt;mayC.shouldnt;mustD.cant;shouldn

12、tCB9.-Willyoustayforlunch?-Sorry,_.Mybrotheriscomingtoseeme.A.ImustntB.IcantC.IneedntD.Iwont10.-MayIpickaflowerinthegarden?-_.A.No,youneedntB.Not,please.C.No,youmustntD.No,youwontBC11.Putonmoreclothes.Youbefeelingcoldwithonlyashirton.A.canB.couldC.mustD.would12.MustIdrivetohishouseandpickupthechildr

13、en?No,.A.youshouldntB.youmightnot C.youneednt D.youmustntCC13.WedidntseeTomatthemeetingyesterday.Heit.A.mustnthaveattended B.cannothaveattended C.neednthaveattended D.wouldhavenotattended14.Weplaychessthanbridge.Someofusdontknowhowtoplaybridge.A.hadbetter B.wouldbetter C.wouldrather D.hadratherBA15.

14、Thereissomeoneknockingatthedoor.itbeTom?A.CanB.MustC.ShouldD.Oughtto16.Twoyearago,myhusbandboughtmeabicycle.Ifyouliveintown,itisoftenfasterthanacarandyouworryaboutparking.A.mustnotB.maynotC.shouldnotD.donthavetoAD17.-Is John coming by train?-He should,but he _ not.He likes driving his car.A.must B.c

15、an C.need D.may19.-I heard they went skiing in the mountains last winter.-It _ true because there was little snow there.A.may not be B.wont be C.couldnt be D.mustnt beDC全国高考试题回放1.Aleft-luggageofficeisaplacewherebags_beleftforashorttime,especiallyatarailwaystation.A.shouldB.canC.mustD.will2.How_yousa

16、ythatyoureallyunderstandthewholestoryifyouhavecoveredonlypartofthearticle?A.canB.mustC.needD.may3.Theroomissodirty._wecleanit?Ofcourse.A.WillB.ShallC.WouldD.DoBAB4.MyEnglish-Chinesedictionaryhasdisappeared.Who_havetakenit?A.shouldB.mustC.couldD.would5.IsJohncomingbytrain?Heshould,buthe_not.Helikesdr

17、ivinghiscar.A.mustB.canC.needD.may6.Iheardtheywentskiinginthemountainslastwinter.-It_truebecausetherewaslittlesnowthere.A.maynotbeB.wontbeC.couldtbeD.mustntbeCDC10.Iwasreallyanxiousaboutyou.You_homewithoutaword.A.mustntleaveB.shouldnthaveleftC.couldnthaveleftD.needntleave11.Youcantimaginethatawell-b

18、ehavedgentlemen_besorudetoalady.A.mightB.needC.shouldD.would12.Writetomewhenyougethome._.A.ImustB.IshouldC.IwillD.IcanBCC13.Mr.Bushisontimeforeverything.How_itbethathewaslatefortheopeningceremony?A.canB.shouldC.mayD.must14.AreyoucomingtoJeffsparty?Imnotsure.I_gototheconcertinstead.A.mustB.wouldC.sho

19、uldD.might15.MysistermethimattheGrandTheatreyesterdayafternoon,sohe_yourlecture.A.couldnthaveattendedB.neednthaveattendedC.mustnthaveattendedD.shouldnthaveattendedADA16.Sorry,Imlate.I_haveturnedoffthealarmclockandgonebacktosleepagain.A.mightB.shouldC.canD.will17.Therewasalotoffunatyesterdaysparty.Yo

20、u_come,butwhydidntyou?A.musthaveB.shouldC.needhaveD.oughttohave18.WhencanIcomeforthephotos?Ineedthemtomorrowafternoon.They_bereadybyby12:00.A.canB.shouldC.mightD.needADB19.IstayedatahotelwhileinNewYork.-Oh,didyou?You_withBarbara.A.couldhavestayedB.couldstayC.wouldstayD.musthavestayed20.Thefirespread

21、throughthehotelveryquicklybuteveryone_getout.A.hadtoB.wouldC.wasabletoD.could21.Jack_yet,otherwisehewouldhavetelephonedme.A.mustnthavearrivedB.shouldnthavearrivedC.canthavearrivedD.neednthavearrivedACC22.Whenhewasthere,he_gotothatcoffeeshopatthecornerafterworkeveryday.A.wouldB.shouldC.hadbetterD.mig

22、ht23.Sir,you_besittinginthiswaitingroom.Itisforwomanandchildrenonly.A.oughtnttoB.cantC.wontD.neednt24.Itsnearlysevenoclock.Jack_behereatanymoment.A.mustB.needC.shouldD.canAAC25.ItoldSallyhowtogethere,butperhapsI_forher.A.hadtowriteitoutB.musthavewrittenitoutC.shouldhavewrittenitoutD.oughttowriteitou

23、t26.Michael_beapoliceman,forheismuchtooshort.A.needntB.cantC.shouldD.mayCBDiscovering useful structures Ex.1:1.Most ancient festivals would celebrate the end of cold weather 2.Sometimes celebrations would be held after hunters had caught animals.3.At that time people would starve if food was difficu

24、lt to find 4.or to satisfy the ancestors,who might return either to help or to do harm.5.For the Japanese festival Obon,people should go to clean graves 6.It is now a childrens festival,when they can dress up and go 7.the children might play a trick on them.8.Festivals can also be held to honour fam

25、ous people.9.Harvest and Thanksgiving festivals can be very happy events.10.In European countries,people will usually decorate churches and town halls 11.Some people might win awards for their farm produce 12.At the Spring Festival in China,peoplemay give children lucky money in red paper.13.These carnivals might include parades,dancing in the streets 14.The country looks as though it might be covered with pink snow.结束结束