人教版（2019）必修 第三册Unit 5 The Value of Money Discovering Useful Structures 课件

TheValueofMoneyUnit5DiscoveringusefulstructuresModalVerbsandFutureEventsinthePast情态动词&过去将来时Ifyou’llexcuseme,Ioughttobeonmyway.Leading-inMayweaskwhatyou’redoinginthiscountryandwhatyourplansare?Youcan'topenituntiltwoo'clock.Couldyouoffermeworkhere?Readthesentencesbelowandthinkabout:Whatarethefunctionsandmeaningsofthesemodalverbs?apoliterequestintentionapermission

apoliterequest

Afterlearningthissection,youwill,1.identifyandfigureoutthemeaningsandfunctionsofsomemodalverbs

modalverbs(情态动词）.2.betterunderstandandexpressfeelingsandattitudesbyanalyzingthemodalverbs.3.talkaboutfutureeventsinthepastusing“woulddo”and“was/weregoingtodo”.常见情态动词、其缩略形式

情态动词

否定缩略形式cancould

couldn'tmaymayn’tmight

mightn’tshallshouldshouldn’toughttooughtn’tto情态动词

否定缩略形式hadbettermustmustn’thavetowillwouldwouldn’tdaredaren’tneedneedn’tcan'tshan'thadbetternotwon'tHowmanymodalverbsdoyouknow?Preparation(准备）don’t/doesn’thaveto1.Hecancomehome.2.Itmayseemluckytoyou.

3.Sheshouldapologizefornotbeingathome.4.Hehastocomehomeimmediately.5.Hedoesn’thavetocomehome.6.Hecancomehomenow,sincehehasfullyrecovered.7.Youshouldgotoclassrightaway.8.Mayweaskwhatyou’redoing?9.Whatwouldyoudoifyouwereinhersituation?Modalverbsareusedinconjunctionwithverbs(和动词结合）toexpresstheirfunction.

1.permission

2.possibility3.obligation4.necessity5.lackofnecessity6.ability7.advice8.apoliterequest9.intentionDiscoveringtherules情态动词只能和动词原形一起构成谓语，表示说话人的情感和态度。被动语态：情态动词+be+doneSomeofus

can

usethecomputernow,butwecouldn’ttenyearsago.2.Theboyaskedhismotherifhecan/may/mightgotoplaybasketball.3.Could/can/Shall/Will/May/MightIhaveadrinkofwater,please?4.It's

half

past

two.

I

think

we

must/should/had

better

go

home.5.Youshouldn’tthrowawaythelittereverywhere.Youmust

throwitintotrashcan.6.Youdon’thaveto/needn’t

buyagift,butyoumay/might/can/couldifyouwantto.7.I’mverytired.Imust

sitdownandhavearest.

8.Ihavetohurryupnow.Ihaveatraintocatch.9.MyfriendaskedifIwouldgowithhim.10.Lilyneeded/needmoremoneytopayforthatbookatthattime.11.Idarenot/don’tdaretostayathomealoneonthestormynight.

ReadthefollowingsentencesandtrytogetthecorrectModalverbs.

Discoveringtherules功能情态动词能；会（能力）

可能；可以（许可）义务；责任（建议）

禁止（建议）（委婉）建议必须；不得不情态动词否定式没必要

（建议）请求需要敢于打算；意愿can,couldshould，oughtto，hadbetter

will,would(总是要）need(to)may,can/could,will/would,shouldshall(第一人称）Thefunctionsofmodalverbs

Discoveringtherulesmay,might,can,couldmust，should，oughttomust(主），haveto(客）don’thaveto,needn’tdare(to)mustn’t不准Readthepassageandfillintheblankswithsuitablemodalverbsinthebox.maymustcanoughttomighthadbetterwouldshouldInthefilmTheMillionPoundBankNote,HenryAdamsisstuckinaforeigncountrywithoutmoneyandfriends,andwithnowheretostay.Whilethissituation_____seemunusual,itcansometimeshappentotravellers.Incaseithappenstoyouonatripabroad,what______youdo?First,andmostimportantly,you_____staycalm.Fear____causeyoutobecomeconfused.Youneedtothinkclearly.Second,youshouldgotoyournearestconsulate.They________beabletohelptosomeextent.Third,you______dowelltocheckwithsomelocalcharities.They______offerhelptotravellersinneed.Fourth,you_________avoidgettingintotrouble.You______thinkthatstealingsomemoneyorfoodwouldhelpyou,butyoushouldnotdoso.Gettingcaught______ruinyourlife.mayshouldmustcanoughttowouldmighthadbettermightwould1.IaskedhimifPeterwouldarrivethenextday.2.Shetoldmeshewasgoingtoposttheparcel.3.Wewereabouttogotherewhenitbegintorain.4.Shedidn'tsaywhenshewascomingagainnexttime.would/should+动词原形was/weregoingto+动词原形*与would+动词原形相比，was/weregoingto+动词原形有打算、计划的含义。was/wereabouttodogo,come,leave,start,meet等动词的过去进行时，表示过去即将发生的动作。ThePastFutureTense(过去将来时)3.Completethefollowingsentencesthatdescribethefutureusingeitherformofthegivenverbs.1.PhilipboughttwoticketsforThePhantomoftheOpera.He_____________________________(watch)withhisgirlfriendontheweekend.2.IwassosurprisedatthenewsthatDavid___________________________(play)theroleofthedinosaurintheplaythatIgavehimahugoutofjoy.3.Lilydecidedthatshe____________________________(settle)inNewYorkandpursueherdreamofbecominganactress.4.Hey,Timmy.I________________(call)you.Butnowthatyouarehere,Idon’thaveto.5.Thecompetitionwassoclosethatnoonewassurewho___________(win)

theBestActoraward.6.Jimisnothererightnow.Hesaidhe________________________(be)ondutyatthelibrarythisafternoon.wouldwatch/wasgoingtowatchwouldplay/w