人教新课标必修三 Unit 2 语法辅导课件-Modal verbs课件

IWantToBeWithYouTherearethingsthat______bedoneThatarenotyetbegunThingsthatI______doWhenIwanttobewithyouAlthoughwe______befarapartYou______bewithbeinmyheartNooneelse______doIjustwanttobewithyoumustmustwillwillwillIwanttobewithyou______youhearme?IneedyounearmeIwanttobewithyouIneedyounearme,myloveCan’tThetwoofus______beoneMotherofmysonNooneelse______doIjustwanttobewithyouIwanttobewithyou_____youhearme?IneedyounearmeIwanttobewithyouIneedyounearme,mylovewillmustCanDiscoveringusefulstructures

---ModalVerbsFunctionsofModalVerbs(p5)AbilityAdviceAgreementGuessingPasthabitNecessityPermissionPossibilityPredictionPromiseRequest(1)表示能力(ability)CanyouspeakJapanese?Shecouldplaythepianowhenshewas6.*beableto①tense②gainthroughhardworkThegirlwill

beableto

speakEnglishwell

inafewmonths.IcouldswimwhenIwasonly6.1.can/could(2)表示允许(许可或请求许可）(permission/request)--Can/CouldIgonow?--Youcangonow,buthecan’t.Iampolite~Whenyouask,Iamtheoneyouwant~requestpermission(3)表示理论上或习惯上的可能性（肯定句）E.g.1Itcanbequitecoldhereinwinter.E.g.2Accidentscanhappenatanytime.E.g.3Itcouldbeveryexcitingtogooutforadrive.possibility(4)推测（guessing）（can限于否定句，疑问句，could不受此限）E.g.A:Someoneiscoming!Whocanitbe?B:ItcouldbeJohn.C:Itcan’tbehim.B:Well.Itcouldn’tbehim.Iampolite~Conclusion1Can/could(1)表示能力(ability)(2)表示允许(许可或请求许可)(3)表示理论上或习惯上的可能性(肯定句)(4)推测(guessing)（can限于否定句，疑问句，could不受此限）could可表示能力或可能性，多用于过去，也可指现在，通常表示虚拟或作为can的委婉形式。Tips1.惯用形式“cannot…too…”表示“无论怎么……也不（过分）”。如：Youcannotbetoocareful.你越小心越好。2.惯用形式“cannotbut+不定式（不带to）”表示“不得不，只好”。如：Icannotbutadmireherdetermination.我不得不钦佩你的决心。

2.may/might(1)表示请求、许可(requestorpermission)--May/MightIaskyouaquestion?--Yes,youmay./Yes,youcan./Yes,please.--No,youcan’t./No,youmustn’t.Iampolite~Ifyoumustask,well,donotchoose“might”.(2)表示愿望(wish)Mayyoubehappyallyourlife.MayGodblessyou!Mayyousucceed.Maysb(verb)…!(3)表示推测(possibility),多用于肯定句和否定句might比may可能性更小Itmay/maynotbetrue.Hemight/mightnotcometoday.Conclusion2may/might(1)表示请求、许可(requestorpermission)(2)表示愿望(wish)(3)表示推测(possibility),多用于肯定句和否定句，might比may可能性更小Tips惯用句式：“mayaswell或might(just)aswell+动词原形”意为“最好，满可以，倒不如”，相当于“hadbetter”.Youmayaswelltellusnow,we’llfindoutsoonerorlater.Thereisnothingtodo,soImayaswellgotobed.3.will/would(1)表示请求、建议等(request，adviceetc)WillyouhelpmewithmyEnglish?Wouldyoupassmethebook?Iampolite~(2)表示意志，愿望，决心等。（willingness）will表示现在的意愿，would表示过去的意愿Gowhereyouwill.

SheaskedifIwouldgowiththem.Iwillneverdothatagain.NomatterwhatIsaid,hewon’tlistentome.不乐意，不肯(3)表示习惯,倾向性,固有性质。will表示现在的习惯，would表示过去的习惯(=usedtodo)。Oilwillfloatonwater.Everydayhewillsittheredoingnothing.Whenhewasachild,hewouldoftengoskiing.*usedtodoHeusdtoliveinParis,butnowhelivesinBeijing.(4)表示功能。“能，行”Thedoorwon’topen.

Thepenwon’t

write.Conclusion3will/would(1)表示请求、建议等(request，adviceetc)(2)表示意志，愿望，决心等（willingness）。will表示现在的意愿，would表示过去的意愿(3)表示习惯,倾向性,固有性质。will表示现在的习惯，would表示过去的习惯(=usedtodo)。(4)表示功能。“能，行”4.1shall(1)用于第一、第三人称，表征求对方意见或请示(advice，permission)Shall

wegooutandhaveapicnic?Whenshall

hebeabletoleavethehospital?

shall(2)用于第二、第三人称，表说话人的命令、警告、允诺、威胁等强烈意志和决心(determination)You

shallfailifyoudon’tworkharder.He

shallhavethebookwhenIfinishreading.Don’tgoanywhereelsewithoutmypermission.You

shallgowithme.警告warning允诺promise命令orderTip（2）*表示强制，用于法令、条约、规章中，意为“必须，应该”。1.Candidatesshallremainintheirseatsuntilallthepapershavebeencollected.

试卷完全收回后，应试人才能离开座位。2.AndshewillbringforthaSon,andyoushallcallHisnameJESUS,forHewillsaveHispeoplefromtheirsins.她将要生一个儿子，你要给他起名叫耶稣，因他要将自己的百姓从罪恶里救出来。（fromBible）Conclusion4(1)用于第一、第三人称，表征求对方意见或请示(advice，permission)(2)用于第二、第三人称，表说话人的命令、警告、允诺、威胁等强烈意志和决心(determination)（2）*表示强制，用于法令、条约、规章中，意为“必须，应该”。4.2should(1)表劝告、建议、命令(advice，order)（=oughtto）Yousouldgototheclassrightnow.should(2)表惋惜、忧虑、诧异等感情色彩（emotion）It’sapitythatheshouldleavesosoon.Idon’tknowwhyyoushouldthinkthatIdidit.疑问句，感叹句中HowshouldIknow?Whyshouldyoubesorudetoday?should(3)表婉转语气（politeness），与say，think，advise等搭配Ishouldadviseyounottodothat.Ishouldsayyourhomeworkisnotsatisfyingenough.should(4)表推测,”应该，很可能”It’s5o’clock.Thedinnershouldbeready.Theyshouldhavearrivedbynow.Conclusion5Should(1)表劝告、建议、命令(advice，order)（=oughtto）(2)表惋惜、忧虑、诧异等感情色彩（emotion）(3)表婉转语气（politeness），与say，think，advise等搭配(4)表推测,”应该，可能”5.must(1)表示“必须，应该”之意(necessity)，语气比should，oughtto强烈。mustn’t表示“不准，不应该，禁止”等意Everybodymustobeythelaw.Youmustn’tdrivesofastinthestreet.mustn’t--MustIstandheretalkingtoyou?--Yes,_____________--No,_____________youmustyouneedn’t/youdon’thavetomust*havetoImustdomyhomeworknow.Ihavetodomyhomeworkeveryday.Thefilmisnotinteresting.Ireallymustgonow.Ihavetogonow,becausemymotherisinhospital.①must表示的是说话人的主观看法，而haveto则往往强调客观需要。②haveto涉及各种人称、时态等方面的变化形式。③don’thavetovsmustn’te.g.1Youdon’thavetodoallthehousework.e.g.2Youmustn’tparkyourcarinthisarea.It’sdangerous.must(2)意为”偏偏“，”非要“，多指令人不快的事Thecarmustbreakdownwheneverythingdidnotgowell.--Howoldareyou,madam?--Ifyoumustknow,I’mtwicemyson’sage.(3)表有把握的推测,”一定，准是”--Listen!Theratmust

bebitingthewall.NowTheremustbeaholeinthewall.--Oh,no!Thefoodismising!Theratmusthavecomeintotheroom!“应该”，只有一种形式，to不能省略。ought

to没有人称和数的变化，可以表示现在、将来或过去将来，由时间状语或上下文决定。They

ought

to

come

tomorrow.He

thought

that

they

ought

to

take

part

in

the

design.

6.oughttoought的否定形式由直接加not构成，疑问式将ought提到句首构成。

He

ought

not

to

do

it.=He

oughtn’t

to

do

it.

Ought

we

to

do

it

at

once?

在反意疑问句里，下面两种形式都可以：

He

ought

to

be

here,

shouldn’t

he?

He

ought

to

be

here,

oughtn’t

he?(1)意为”应该”，表示责任、义务、劝告、建议、命令，与should意义相近，但oughtto语气强烈。反映客观情况或涉及法律义务和规定时一般用oughttoYoungpeopleshouldlearnhowtousecomputers.

Everycitizenoughttoobeylaw.

Accordingtothelaw,yououghttohelphimgetagoodeducationasyouarehisfather.(2)表猜测，“应该”，“理应”Hemustbehomebynow.(断定他已到家)Heoughttobehomebynow.(不十分肯定)Thisiswheretheoilmustbe.(比较直率)Thisiswheretheoiloughttobe.(比较含蓄)need和dare①情态动词，主要用于否定句和疑问句。②实义动词，各种句式。①情态动词+V原1)needYou

needn’t

telephone

him

now.

NeedItelephonehimnow?2)

dareShe

dare

not

go

out

alone

at

night.

How

dare

you

say

I’m

unfair?

7.dare&need—Dareyoutellherthetruth?—Yes,_________.—No,__________.IdareIdaren’t②用作实义动词

1)needYou

don’t

need

to

do

it

yourself.

Doyouneedtodoityourself?Ajoblikenursingneedspatienceandunderstanding.*needdoing=needtobedone2)dareOnlyafewjournalistsdaredtocoverthestory.Hedidnot

dare(to)lookup.(肯定句中daretodo,否定句中可以省略to)Idaresayhe’llcomeagain.（Idaresay…为固定习语）

注意对need问句的回答:--NeedIfinishtheworktoday?--Yes,________________.No,________________.No,________________.youmustyouneedn’tyoudon’thavetoneedn’t对其它情态动词的回答:--ShallItellJohnaboutit?--No,you__________.--No,you__________.

--Mustwedoitnow?--No,you__________.--No,you__________.needn’tdon’thavetoneedn’tdon’thaveto情态动词的语法特征情态动词有一定的意义，表示或暗示某种情绪或态度，表示可能、建议、愿望、必要、允许、能力等。2.情态动词没有人称和数的变化，即不随主语的不同而变化。3.情态动词不能独立使用，必须和实义动词一起构成谓语。4.情态动词除ought和have外，后面只能接不带to的不定式。5.

情态动词没有非谓语形式，即没有不定式、分词等形式。

情态动词+havedone用法1

遗憾，责备（虚拟）1.could/mighthavedone本能做而没有做Ifyouwerenotlazy,youcouldhaveworked

outtheproblem.2.wouldhavedone3.shouldhavedone/oughttohaved