人教版高中英語必修3教案：Unit2Period3

情態(tài)動(dòng)詞ModalVerb

情態(tài)動(dòng)詞有一定的意義，但沒有人稱和數(shù)的變化，不能獨(dú)立使用，它和后面的動(dòng)詞構(gòu)成謂語．除ought

和have

外，后面只能接不帶to

的不定式。

只作情態(tài)動(dòng)詞的can/could,may/might,

oughtto,must

可情態(tài)可實(shí)義的need,dare

可情態(tài)可助動(dòng)詞的shall/should,will/would相當(dāng)于情態(tài)動(dòng)詞的haveto,usedtoEveryoneherecanspeakEnglish.---CouldIhavealookatyournotebook?---Yes,youcan./No,

you

can't.

Itcan’tbeMary.Shehasfallenill.Canthisnewsbetrue?Wherecantheybe?Shecan’thaveleftschool,forherbikeisstillhere.Themonkeyslooksweet,buttheycanbeverynaughty.Shecan/isabletosingthesonginEnglish.I

could

read

when

I

was

four.

Thefirespreadthroughthehotelquicklybuteveryone

wasabletogetout.情態(tài)動(dòng)詞含義否定式

注意點(diǎn)can/could表能力“能，會(huì)”can’t“不會(huì)，不能”區(qū)別

beableto表許可“可以”can’t“不可以，不許”代替may表推測“可能”can’t“不可能”主要用于否定、疑問句中1表示某人通過努力克服困難做成某事,要用was/wereableto.2could,might,would表委婉語氣用于疑問句,答語仍須用

can,may,will.3can用于肯定句中,可表示”有時(shí)可能”---MayIuseyourpencil?---Yes,youmay./No,youmustn’t.Shemaynotbeworkingnow.Johnmightbeathomenow.Helenmaygoonthetripwithus,butsheisn’tverysureyet.Shemay/mighthavereaditinthepaper.Hemaynothavefinishedreadingthebook.情態(tài)動(dòng)詞含義否定式

注意點(diǎn)may/might表許可“可以”mustn’t“不許，嚴(yán)禁”口語中也可用can’t表推測“可能”Maynot“可能不”主要用于肯定句，不能用在疑問句

（maynot可能不）IfyouwillhelpmewithmyEnglish,Iwillbeveryhappy.IpromisedthatIwoulddomybest.Willyoutellmesomethingaboutyourhometown?Wouldyoupleasespeakagainmoreslowly？Hewillalwaystakeawalkaftersupper.Duringthevacationhewouldoftenvisitme.情態(tài)動(dòng)詞

用法will表請(qǐng)求(第二人稱)表意志,意愿表某種傾向或習(xí)慣would更客氣的請(qǐng)求過去的意志,意愿過去的傾向或習(xí)慣Shallwesetoffnow?YoushalldoasIsay.Tellhimthatheshallhavethebooktomorrow.Youshallbepunishedifyoudothatagain.Youshouldn’t/oughtn’ttosmokesomuch.Sheshouldn’thaveleftwithoutsayingaword.It’sfiveo’clock.Johnshouldbeathomenow.Wehavepreparedafridgeoffoodanddrinks.Thatoughttobeenoughfortheparty.It’sapitythatheshouldbesorudetoalady.情態(tài)動(dòng)詞

用法shall征求對(duì)方意見(第一,三人稱)表示命令,警告,威脅或允諾(第二,三人稱)should/oughtto表示勸告,建議,命令或責(zé)任“應(yīng)該,必須”表示推測,

“理應(yīng),估計(jì),大概,可望”should還可表示“竟然”---Must

I

finish

all

assignments

at

a

time?---Yes,youmust./No,

you

needn't.

Idon’tlikethisTVset.Wemustbuyanewone.Therewasnomorebus.Theyhadtowalkhome.You

must

be

the

new

teacher.

There

is

nobody

here.

They

must

have

allgone

home.MyMP4isn’tinmybag.WherecanIhaveputit?John,lookatthetime.Mustyouplaythepianoatsuchalatehour?情態(tài)動(dòng)詞含義否定式注意點(diǎn)must表必要“必須”needn’t“不必”(區(qū)別

haveto)有時(shí)表“偏要”表推測“一定”can’t“不可能”只能用于肯定句，不能用于否定、疑問句1.Acomputer______thinkforitself;itmustbetoldwhattodo.A.can’tB.couldn’tC.maynotD.mightnot2.Thefirespreadthroughthehotelveryquicklybuteveryone______getout.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.can’tB.mustn’tC.needn’tD.maynot8.Johnny,you______playwiththeknife,you______hurtyourself.A.won’t;can’tB.mustn’t;mayC.shouldn’t;mustD.can’t;shouldn’tCB9.--Willyoustayforlunch?--Sorry,_____.Mybrotheriscomingtoseeme.A.Imustn’tB.Ican’tC.Ineedn’tD.Iwon’t10.--MayIpickaflowerinthegarden?--________.A.No,youneedn’tB.Not,please.C.No,youmustn’tD.No,youwon’tBC11.Putonmoreclothes.You

befeelingcoldwithonlyashirton.

A.can

B.could

C.must

D.would12."MustIdrivetohishouseandpickupthechildren?"

"No,

."

A.youshouldn't

B.youmightnot

C.youneedn't

D.youmustn'tCC13.Wedidn'tseeTomatthemeetingyesterday.He

it.

A.mustn'thaveattended

B.cannothaveattended

C.needn'thaveattended

D.wouldhavenotattended14.We

playchessthanbridge.Someofusdon'tknowhowtoplaybridge.

A.hadbetter

B.wouldbetter

C.wouldrather

D.hadratherBA15.Thereissomeoneknockingatthedoor.

itbeTom?

A.Can

B.Must

C.Should

D.Oughtto16.Twoyearago,myhusbandboughtmeabicycle.Ifyouliveintown,itisoftenfasterthanacarandyou

worryaboutparking.

A.mustnot

B.maynot

C.shouldnot

D.don'thavetoAD17.---IsJohncomingbytrain?---Heshould,buthe____not.Helikesdrivinghiscar.A.mustB.canC.needD.may19.---Iheardtheywentskiinginthemountainslastwinter.---It____truebecausetherewaslittlesnowthere.A.maynotbeB.won’tbeC.couldn’tbeD.mustn’tbeDC全國高考試題回放1.Aleft-luggageofficeisaplacewherebags____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___havetakenit?A.shouldB.mustC.couldD.would5.—IsJohncomingbytrain?—Heshould,buthe____not.Helikesdrivinghiscar.A.mustB.canC.needD.may6.—Iheardtheywentskiinginthemountainslastwinter.--It____truebecausetherewaslittlesnowthere.A.maynotbeB.won’tbeC.could’tbeD.mustn’tbeCDC10.Iwasreallyanxiousaboutyou.You___homewithoutaword.A.mustn’tleaveB.shouldn’thaveleftC.couldn’thaveleftD.needn’tleave11.Youcan’timaginethatawell-behavedgentlemen___besorudetoalady.A.mightB.needC.shouldD.would12.—Writetomewhenyougethome.—__________.A.ImustB.IshouldC.IwillD.IcanBCC13.Mr.Bushisontimeforeverything.How___itbethathewaslatefortheopeningceremony?A.canB.shouldC.mayD.must14.—AreyoucomingtoJeff’sparty?—I’mnotsure.I___gototheconcertinstead.A.mustB.wouldC.shouldD.might15.MysistermethimattheGrandTheatreyesterdayafternoon,sohe___yourlecture.A.couldn’thaveattendedB.needn’thaveattendedC.mustn’thaveattendedD.shouldn’thaveattendedADA16.Sorry,I’mlate.I____haveturnedoffthealarmclockandgonebacktosleepagain.A.mightB.shouldC.canD.will17.Therewasalotoffunatyesterday’sparty.You___come,butwhydidn’tyou?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.Thefirespreadthroughthehotelveryquicklybuteveryone____getout.A.hadtoB.wouldC.wasabletoD.could21.Jack___yet,otherwisehewouldhavetelephonedme.A.mustn’thavearrivedB.shouldn’thavearrivedC.can’thavearrivedD.needn’thavearrivedACC22.Whenhewasthere,he___gotothatcoffeeshopatthecornerafterworkeveryday.A.wouldB.shouldC.hadbetterD.might23.Sir,you___besittinginthiswaitingroom.Itisforwomanandchildrenonly.A.oughtn’ttoB.can’tC.won’tD.needn’t24.It’snearlyseveno’clock.Jack___behereatanymoment.A.mustB.needC.shouldD.canAAC25.ItoldSallyhowtogethere,butperhapsI____forher.A.hadtowriteitoutB.musthavewrittenitoutC.shouldhavewrittenitoutD.oughttowriteitout26.Michael___beapoliceman,forheismuchtooshort.A.needn’tB.can’tC.shouldD.mayC