【课件】Unit5情态动词课件2021-2022学年高中英语人教版必修第三册

情态动词GrammarFunctionMeaningFormPage54Functions&MeaningsExampleNecessityPossibilityObligationRequestAdviceIntentionWecandiscussitnow.Youmustdoitatonce.Wouldyoupleasepassmethesalt?Youneedn’thavestayed.Yououghttohelphim.Iwouldratherdoitmyself.义务，职责必要，需要may/might,couldMustn’tcouldhavetoShould;hadbetterdoWilldo;begoingtodo1.can/couldHerservantcanspeakfourkindsofforeignlanguages.Anybodycanmakemistakesinhislifetime.CanIhavealookatthatplasticbox?—CouldItakeoutaloantomorrow?—Yes，youcan.(/No,I’mafraidnot.)He’sjusthadhislunch.Hecan’tbehungry.能力客观可能性请求允许请求中的肯定答复推测委婉：could>can#Ability:canvs.beabletobeabletodo强调需要某种条件或努力做成某事：Itwasaholidayandthechildrenwereabletogototheseaside.Thegirlworkedhardsoshewasabletopassthefinaltest.2.may/might—Might/MayIsmokebeneaththetree?—Yes,youcan./No,youmustn’t.Maytheforcebewithyou!Yourmothermay/mightnotknowthetruth.请求禁止祝愿实际可能性：may>mightMaywellvs.mayaswellHergrandpamay/mightwellbeovereighty.Heisoftenlate.Hemightwelllosehisjob.Janehassetofftotheairport.Imayaswellstartatonce.Thisholidayisn’tmuchfun;wemightaswellstayathome.#Possibility:Canvs.could/may/mightAccidentscanhappen.Anybodycanmakemistakes.Childrencanoftengetillsuddenly.WemayspendoursummerholidaysinHangzhouthisyear.Willyouanswerthetelephone?Itcould/may/mightbeyourmother.客观可能性实际可能性：may>might/could经验之谈#PossibilityThoseofyouwhoarefamiliarwiththegamewillknowthis.Theymadabetwhichwouldsettletheirargument.Itmayseemluckytoyoubutnottome.Thatmightnotbetrue.Hurryup!Theguestshould/oughttobeherebynow.Oh,youmustbeSylvia’shusband.2.must/havetoYoumustgotoseethedoctorregularly.—Mustweapologizetotheservant？—Yes，youmust.(/No，youdon’thaveto/youneedn’t.)Yourmothermustbeondutynow.It’s12p.m.now.Theymusthavearrivedhome.必须、必要不必要推测一定做过某事对已经发生的事情推测#Obligation:Mustvs.HavetoIknowImuststudyhard.Hermotherwasillandshehadtostayathometolookafterher.主观上，个人意识上的需要客观需要#Must的否定式1.______:Youmustn’tparkyourcarhere.2.______:Youmustfinishyourhomeworkontime.否定：Youdon’thaveto/needn’t…3.______:Helookedtired.Hemusthaveworkedforalongtime.否定：Hecouldn’thaveworkedforalongtime.禁止义务推测3.shall/shouldShallwegototheconcerttonight?Shallshecomewithus?Youshallgotothefrontatonce.Don’tworry.Youshallgettheresponseverysoon.Youshallfailifyouignorethedetails.Nothingshallstopusfromfightingagainstpollution.征求意见命令允诺警告决心#Advice:shouldvs.oughttoWeshould/oughttohelpeachotherandlearnfromeachotherinourwork.Sheisyourmother,soyououghttosupporther.WeoughttogoandseeMarytomorrow,butIdon’tthinkwewill.大多数情况下should与oughtto可互换；两者的区别是，should强调个人主观看法，oughtto更多反映客观情况，在谈到法律、义务、规定时使用。3.Shall/shouldHurryup!Theguestsshould/oughttobeherebynow.Sallywasupsetthatwedidn’ttellherthenews.Youshouldhavetoldheraboutthetruth.It’swonderfulthatyoushouldhaveachievedsomuchintheseyears.It’sstrangethatheshouldbelate.推测责备，本该做但事实上没做惊讶、赞美竟然情态动词+havedoneItisfeared(that)thekidmayhavebeenkidnapped.Hewasn’tathomelastnight.Hecould/mighthavegonetothemovies.Yourtripmusthavebeenfun!Helosthisfamilyinthataccident.Hecannothaveforgottenit.对过去事情的推测情态动词+havedoneTheaccidentcouldhavebeenavoided.Tobehonest,Ishouldn’thavesaidtoyoulikethat.Ididn’tpasstheinterview.Ishould/oughttohaveworkedharder.Youneedn’thaveboughtthedictionary;Icanlendittoyou.过去本来应该(不)做（与实际不同）情态动词+havedonemay/mighthavedone可能做过某事musthavedone一定做过某事couldhavedone可能做过某事；本可以做某事（实际上没有做某事）needn’thavedone本不需要做某事（实际上做了某事）oughttohavedone=shouldhavedone本应做某事（实际上没有做某事）4.Will/wouldWill/Wouldyoupassmetheball,please?Iwillneverdothatagain.Theyaskedhimifhewouldmakeabet.Tryyourbest,andyourwishwillcometrue.请求，建议：would>will个人意志、愿望和决心将来一定/准会…Futureinthepast:wouldTheweatherforecastsaiditwouldrain,soItookmyumbrella.Youtoldmethatyouwouldcometoseeme!WeheardthathewouldbepromotedinAugust.Heknewthatwhenheturnedtheswitch,theelectricitywouldcomeon.Duringthevacation,hewouldvisitmeeveryotherday.Would 表 关于同志近三年现实表现材料材料类招标技术评分表图表与交易pdf视力表打印pdf用图表说话 pdf 示过去反复、习惯发生的动作或某种倾向PastpredictionPastpromisePastdecision在过去还没发生的事情Futureinthepast:otherexpressionsShewasgoingtocallmeyesterdayafternoon,butgotinanaccident.Hisfatherwasabouttohaveabusinesstripnextweek.Themansaidhewastotakeuptheposition.Shewasonthepointofleavingwhenwecamein.Won’t,can’t,doesn’tThewindowwon’topen.Thewindowcan’topen.Thewindowdoesn’topen.这扇窗户怎么都打不开（强调主观意愿，实施者执意要打开）这扇窗户打不开（客观事实，原来 设计 领导形象设计圆作业设计ao工艺污水处理厂设计附属工程施工组织设计清扫机器人结构设计 不能打开，是固定死的）这扇窗户开不了（这扇窗是坏的，有质量问题）mayshouldmustcanoughttowouldmighthadbettermightwould5.Need&dareWeneedreportthemattertothebossimmediately.Weneedtoreportthemattertothebossimmediately.Youneedn’tcomesoearly.NeedIfinishtheworktoday?-Yes,youmust./No,youneedn’t.5.Need&dareHowdareyousayI’munfair?Hedaren’tspeakEnglishbeforesuchacrowd,darehe?Ifhedarebreaktherule,hewillbepunished.主要用于疑问句、否定句和条件从句，一般不用于肯定句