DiscoveringUsefulStructuresLearningobjectives1.Toidentifythedifferentfunctionsofmodalverbs.2.Totalkaboutfutureeventsinthepastusing“woulddo”and“was/weregoingtodo”.patiencen.耐心；忍耐力；毅力教材原句Patience.

ifyoudon’tmind,mayIaskhowmuchmoneydoyouhave?要點必記havepatience忍耐一下patiencewith忍耐；反對withpatience耐心地outofpatience不耐煩；失去耐心losepatience失去耐心havenopatiencewith不能容忍一、核心詞匯2.postponev.延遲；延期；延緩教材原句Hehadtopostponeopeningit他必須延遲打開它要點必記n.postponement延期；延緩postponeretirement延遲退休delay,postpone,defer,suspend,prolong,putoff

均有"推延，延期"之意。delay:

普通用詞，多指因外界原因推遲或耽誤，也可指有意推遲。postpone:正式用詞，語氣較強，多指有安排的延期，常指明延期到一定的時間。suspend:指暫時中斷以待某種條件的實現(xiàn)。prolong:指把時間延長至超過正常或通常的限度。putoff:口語用詞，與postpone同義，但較通俗。詞義辨析3.intentionn.目的；打算

要點必記intendv.目的；打算intendedadj.故意的；有意的intendtodo想要做；想要做某事intendfor希望有或接到；打算成為…

4.incase以防；以防萬一教材原句Incaseithappenedtoyouabroad以防它發(fā)生在你在國外的時候要點必記incase假使；假如；萬一；如果inthecaseof就在來說inmostcase在大多數(shù)情況下ingoodcase健康強壯；生活富裕5.extentn.程度；限度教材原句Theywouldbeabletohelptosomeextent.在某種程度上，他們能夠幫忙要點必記extend,lengthen,stretch,prolong

都含有"伸展，延長"之意。extent:

指時間或空間的延長，也可指影響和使用范圍等的擴大。lenfthen:指把長度或期限拉長或延長，其反義是shorten。stretch:指長度的延伸以及寬度的增加。prolong:通常指時間上延長得超過了一般或正常的限度。二、Functionsofmodalverbs1.Hemay/cancomehome.2.Youcancomehomebyplaneorbytrain.3.Sheshouldapologizefornotbeingathome.4.Hemust/hastocomehomeimmediately.5.Hedoesn’thavetocomehome.6.Hecancomehomebyhimselfnow,sincehehasfullyrecovered.7.Hehadbettercomehomenow.8.Couldyoutellhismotherthathewillcomehometonight?9.Hewouldrathercomehometonight.Modalverbsareusedinconjunctionwithverbstoexpresstheirfunction.

Examples:Functions:1.permission許可2.possibility可能性3.obligation責任，義務4.necessity必要性5.lackofnecessity不必要6.ability能力7.advice建議8.apoliterequest委婉的請求9.intention意圖三、ObserveanddetectReadthefollowingsentencesandtrytochoosewhatthemodalverbsexpress:1.Sincewehavefinishedthebook,wecandiscussitnow.2.Youmustdoitatonce,forthedeadlineisdue.3.Wouldyoupleasepassmethesalt?4.Youneedn’thavestayed.5.Yououghttohelphim.6.Iwouldratherdoitmyself.permission許可possibility可能性obligation責任，義務necessity必要性ability能力advice建議politerequest委婉的請求intention意圖possibility/abilityObligation/strongadvicepoliterequestnecessityadviceintentionApplication四、VersatileModalVerbsHenryAdamsisstuckinaforeigncountrywithoutmoneyandfriends,andwithnowheretostay.Incaseithappenstoyouonatripabroad,whatshouldyoudo?Situation1:Readthepassageonpage54andfillintheblankswithsuitablemodalverbsinthebox.may mustcanoughttomighthadbetterwouldshouldInthefilmTheMillionPoundBankNote,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.mayshouldmustcanoughttowouldmighthadbettermightwould五、Readthepassageagainandanswersomequestions.1.Howmanytipsarethere?Whatarethey?Fourtipsaregiven:First,andmostimportantly,youmuststaycalm.Second,youshouldgotoyournearestconsulate.Third,youwoulddowelltocheckwithsomelocalcharities.Fourth,youhadbetteravoidgettingintotrouble.Givingadvice:must;should;woulddowelltodo;hadbetter2.What’stheauthor’sreasonforeachtip?First,fearcancauseyoutobecomeconfused.Second,theconsulateoughttobeabletohelptosomeextent.Third,thecharitiesmightofferhelptotravelersinneed.Fourth,youmightthinkthatstealingsomemoneyorfoodwouldhelpyou,butyoushouldnotdoso.Gettingcaughtwouldruinyourlife.Showingpossibility:canwouldmightReadthepassageagainandanswersomequestions.六、NegativeAdvice:strongerweakerYoumustnotsaythingslikethat.Youshouldn’tsaythingslikethat.Yououghtnottosaythingslikethat.Youdon’thave/needtosaythingslikethat.Youhadbetternotsaythingslikethat.Youcannotsaythingslikethat.154632Differentmodalverbscanbeusedtoexpressdifferentlevelsofintensityandpolitenessinofferingadvice.七、Degreeofpossibility:highlowItmayraintomorrow.Itshouldraintomorrow.Itwillraintomorrow.Itcould/mightraintomorrow.3214Differentmodalverbscanbeusedtoexpressdifferentdegreesofpossibility.八、Offeringsuggestionsandgivingexplanations:1.—c;2.—f;3.—d;4.—a;5.—g;6.—e;7.—b.Consolidate

九、VersatileModalVerbs1.Offeringsuggestionsandgivingexplanations;VersatileModalVerbsThetworichbrothersinvitedHenryAdamsintotheirhouse.TheydecidedtomakeabetonHenryAdams.

WhydoyouthinkthebrotherschoseHenryfortheirbet?WhydidHenryAdamsaccepttheenvelopewithmoneyinit?2:Afterthemillion-poundnoteistakenoutpossibilityasimplefuturemodalstrongadvicepossibilitypossibilityabilityVersatileModalVerbsDiscussthescenefromTheMillionPoundBankNoteonpage52andshareyourunderstandingofthestory.Usemodalverbswhennecessary.Situation3:VersatileModalVerbs1.Offeringsuggestionsandgivingexplanations;2.Portrayingandanalyzingcharacters;3.Expressingopinions;1.只作情態(tài)動詞的：2.可情態(tài)可實義的：3.可情態(tài)可助動詞的:

4.相當于情態(tài)動詞的:

十、情態(tài)動詞的分類can/could,may/might,oughtto,mustneed,dare/daredwill/would，shall/should,haveto,usedto，hadbetter，usedto情態(tài)動詞有一定的意義，大多數(shù)情態(tài)動詞有多個意義。

necessity必要性possibility可能性obligation責任義務request請求advice建議intention意圖

情態(tài)動詞沒有人稱和數(shù)的變化，即不隨主語的不同而變化。3.情態(tài)動詞不能獨立使用，須后接動詞原形，一起構(gòu)成謂語。情態(tài)動詞的定義情態(tài)動詞(Modalverb)Whatkindoffeelingsorattitudeisexpressed?Youhavetoreadbetweenthelinesbecausetherealmessagesareoftenhidden…Itmayseemluckytoyou.Astronautsmustwearspacesuitswhentheyworkinspacebecause…

Mayweaskwhatyou’redoinginthiscountry?Youshould/oughtto/hadbettergotoclassrightaway.Whatwouldyoudoifyouwereinhersituation?necessity表必要性possibility表可能和推測obligation表責任義務性request表請求或指示advice表建議intention表意圖和愿望Functionsmodalwords:A.necessityB.possibilityC.obligationD.requestE.adviceF.intentionAnalyzewhatthemodalverbsexpress.1.HenrymustbeanAmerican.2.HenrycanbeanAmerican.3.

HenrycouldbeanAmerican.4.HenrymaybeanAmerican.5.HenrymightbeanAmerican.PossibilityModalverbsusedtoexpresspossibility:must,can,could,may,mightDegreeofpossibilityHighLowAnalyzewhatthemodalverbsexpress.1.Youmustcomeatonce.2.Wehavetowearuniformsatschool.3.Ioughttobeonmyway.Necessity&ObligationModalverbsusedtoexpressnecessity&obligation:

must,haveto,oughttoAnalyzewhatthemodalverbsexpress.1.Willyoupleasetakehertothelibrary?2.Couldyouoffermeworkhere?3.CanIaskaquestion?4.Mayweaskwhatyou'redoinginthiscountry?5.Wouldyoupleasepassmethesalt?RequestModalverbsusedtoexpressrequest:

will,could,can,may,wouldAnalyzewhatthemodalverbsexpress.1.Henrymustacceptthebanknote.2.Henrycouldacceptthebanknote.3.Henrycanacceptthebanknote.4.Henryhad

betteracceptthebanknote.5.Henryshould/oughttoaccepttheban