英語語法之情態(tài)動詞課件

THEVERB(VI)TheModalVerbSentencecompletionShehasn'tcalledmeback.Theirplanemightbedelayed.Hisjacket'shere,Itmustbeagoodrestaurant;Hisphone'sbeenbusyallnight.Let'sjustgoovertohishouse.Thatcan'treallybeElvis.Thisrestaurantcan'tbesoexpensive.Thatcouldn'tbetherealprice.

Shemustn’thavecheckedhermessages.It'ssnowinglikecrazyinNewYork.sohemustbeheretoo.thelinesarereallylong.Hemustbeon-line.Heshouldbehomebynow.He'sbeendeadforyears.Justlookatthepeoplegoingin.Theymusthavemadeamistake.

Conversation

Questions

Inyourcountry,whatmighthappentosomeonewholoseshisjob?Whataresomethingsyoushouldhavedonelastyear,butdidn'tdo?Whatcouldyoudotomakeyourlifemoreexciting?Howwouldyourparentspunishyouwhen/ifyoumisbehavedasachild?WhatmorecouldyoubedoingtopracticeyourEnglish?

現(xiàn)在時形式過去時形式cancouldmaymightwillwouldshallshouldmust---need---dare------oughtto---usedto5英語情態(tài)助動詞共有13個：情態(tài)意義表示法表示“能力”和“可能”表示“許可”和“不許”表示“義務(wù)”和“必然”表示“預(yù)見”和“推測”表示“意愿”、“意圖”和“決心”其他情態(tài)意義6A.表示“能力”（ability）,可用can,could,beableto。Can既能表示現(xiàn)在的能力，也能表示將來的能力。B.表示“可能”（possibility）,可用may,might,can,could。may/might表示“可能”，往往可以交替使用，從而比較婉轉(zhuǎn)，既可以表示現(xiàn)在的可能，也可表示將來的可能。7Look！Icandoit!Ican’tdoitnow,butIcandoitlater.Icanclimbthiscliff.Hecandriveacar.I’llbeabletospeakGermaninanothertwomonths.Hewasabletoswimhalfwaybeforehecollapsed.Icouldn’tplaythepianowhenIwasatschool.8A.請求對方許可（permission）可用can,could,may,might。May/might與can/could相比，后者較為婉轉(zhuǎn)，更有禮貌。B.表示不許可用maynot或者cannot10—CanIgooutforamoment?—No,youcan’t.—MayIuseyourcarforafewdays?—No,youmaynot.Hemaynotgo.Hemightnotgo.Hewasnotallowedtogo.Ididn’tpermithimtogo.12Weshouldlearnfromthemodelworkers.Youshould/oughttodrinkless.Youshould/oughttohaveaskedmypermissionfirst.Youmustbebackbyteno’clock.Youdon’tneedtodoitatonce.Youwillwaitoutsidethegate.14Sheshouldbehereinaminute.Thebookshouldappealtoallloversofpoetry.Theseyoungtreesoughttoprovideshadeintenyears.Youcan’thaveanydifficultygettingthetickets.IfFreddidn’tleavehomebeforefivehecan’tbethereyet.15A.表示預(yù)見（prediction）,即表示單純將來，可用will/shall+不定式。出英格蘭以外的說英語國家如美國、新西蘭、南非的標(biāo)準(zhǔn)英語中，shall已完全為will所取代，這就是說，will可用于一切人稱表示將來。B.表示推測（predictability）,除用should,oughtto和must外，還可用will/would.16IwillbeadifferentpersonwhenIliveinEngland.Youwillbehearingfromme.Itwillraintomorrow.I’llbookatableatFrancesco’s.Weshallcatchthecriminalswherevertheyhidethemselves.17Theyshould/oughttobehomebynow.Theywillbehomebynow.Shewillbeallrightnow.Alionwillattackamanonlywhenhungry.He’llstayinthelaboratoryfordaysandnightsuntiltheexperimentisfinished.Pigswilleatanything.18Iwilllendyouthemoneyifyouneedit.Willyousingatthepartytomorrowevening?Willyoupleaseopenthedoorforme?—Wouldyoulendmeyourpenaminute?—Certainly,Iwill.Shallyoutakeaholidaythissummer?20Iwillwritetohertomorrow.Whywillyougothere?Hewouldseeherthenextday,sohedidn’twritetoher.ShallIcarrythesuitcaseforyou?ShouldIturnoffthelight?Whatshouldwedonow?21A.should可在某些語境中表示惋惜、憂慮、歡欣、驚訝等感情色彩。Itisapitythatheshouldleavesosoon.Theywereamazedthatsheshouldhavedonesomuchinsoshortatime.HowshouldIknow?Whyshouldheberesigning?Ishouldsayheisjusttherightmanforthejob.Ishouldthinkyourapproachiscorrect.23B.would可用于委婉的陳述Idon’tthinkhewouldbesocareless.Itwouldbeashametostopourworkhalfway.Wouldyouliketostayhereforthenight?Whatwouldyouadvisemetodo?Wouldn’titbebetterforustostartoffalittleearliertomorrowmorning?24D.usedto(只有過去時形式，沒有現(xiàn)在時形式)表示過去習(xí)慣動作或狀態(tài)，這種情況現(xiàn)已不復(fù)存在。Thereusedtobeanoldtempleatthecornerofthestreet,butitwasdestroyedinthewarandhasneverbeenrebuilt.UsedyoutogotothesameschoolasEdward?DidyouusetogotothesameschoolasEdward?Whenwewerechildrenweusedto/wouldgoskatingeverywinter.26E.May/might可表示讓步意義Youmayhavegoodreasons,butthatdoesn’tmakeitlegal.Hemaybeold,buthe’sstillfit.Thatmighthappen,butwe’renotworriedaboutit.Theseexercises,asdifficultastheymayseemtobe,arereallygoodforyou.Comewhatmay,I’llnotgiveup.27能做推測性用法的情態(tài)動詞情態(tài)動詞非推測性用法推測性用法can/could表示能力、許可表示可能may/might表示許可表示可能will/would表