人教版（2019）必修 第三冊(cè)Unit 5 The Value of Money Discovering Useful Structures 課件

TheValueofMoneyUnit5DiscoveringusefulstructuresModalVerbsandFutureEventsinthePast情態(tài)動(dòng)詞&過去將來時(shí)Ifyou’llexcuseme,Ioughttobeonmyway.Leading-inMayweaskwhatyou’redoinginthiscountryandwhatyourplansare?Youcan'topenituntiltwoo'clock.Couldyouoffermeworkhere?Readthesentencesbelowandthinkabout:Whatarethefunctionsandmeaningsofthesemodalverbs?apoliterequestintentionapermission

apoliterequest

Afterlearningthissection,youwill,1.identifyandfigureoutthemeaningsandfunctionsofsomemodalverbs

modalverbs(情態(tài)動(dòng)詞）.2.betterunderstandandexpressfeelingsandattitudesbyanalyzingthemodalverbs.3.talkaboutfutureeventsinthepastusing“woulddo”and“was/weregoingtodo”.常見情態(tài)動(dòng)詞、其縮略形式

情態(tài)動(dòng)詞

否定縮略形式cancould

couldn'tmaymayn’tmight

mightn’tshallshouldshouldn’toughttooughtn’tto情態(tài)動(dòng)詞

否定縮略形式hadbettermustmustn’thavetowillwouldwouldn’tdaredaren’tneedneedn’tcan'tshan'thadbetternotwon'tHowmanymodalverbsdoyouknow?Preparation(準(zhǔn)備）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(和動(dòng)詞結(jié)合）toexpresstheirfunction.

1.permission

2.possibility3.obligation4.necessity5.lackofnecessity6.ability7.advice8.apoliterequest9.intentionDiscoveringtherules情態(tài)動(dòng)詞只能和動(dòng)詞原形一起構(gòu)成謂語，表示說話人的情感和態(tài)度。被動(dòng)語態(tài)：情態(tài)動(dòng)詞+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功能情態(tài)動(dòng)詞能；會(huì)（能力）

可能；可以（許可）義務(wù)；責(zé)任（建議）

禁止（建議）（委婉）建議必須；不得不情態(tài)動(dòng)詞否定式?jīng)]必要

（建議）請(qǐng)求需要敢于打算；意愿can,couldshould，oughtto，hadbetter

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

Discoveringtherulesmay,might,can,couldmust，should，oughttomust(主），haveto(客）don’thaveto,needn’tdare(to)mustn’t不準(zhǔn)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+動(dòng)詞原形was/weregoingto+動(dòng)詞原形*與would+動(dòng)詞原形相比，was/weregoingto+動(dòng)詞原形有打算、計(jì)劃的含義。was/wereabouttodogo,come,leave,start,meet等動(dòng)詞的過去進(jìn)行時(shí)，表示過去即將發(fā)生的動(dòng)作。ThePastFutureTense(過去將來時(shí))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