【語法】情態(tài)動詞 -完整版課件

高中英語精品語法課件情態(tài)動詞（第5課時）Lead-in用musthavebeen/done或can’thavebeen/done完成下列句子。1.SheleftinaShanghai-to-Urumchiexpressat0:59.____________（她現(xiàn)在一定已經(jīng)到西安了。）2.Thetwohelicoptershadbeencirclingthenearbymountainsbydawn.____________（駕駛員不可能沒看見求救的篝火。）3.MissRostovaknewmuchaboutecology.___________________（她必定對此做過大量深入的研究。）4.Thecockhascrowedthreetimes，butthelightisstillon.____________（老爸一定又是通宵未眠。）5.Thetouristlookstiredandhershoesaredirtyallover.___________（她一定走過了長路。）Lead-in1.ShemusthavearrivedinXi’an.2.Thepilotscan’thavemissedseeingthecampfireforhelp.3.Shemusthavedonemuchdeepresearchintoit.4.Dadmusthavestayedupthroughoutthenightonceagain.5.Shemusthavewalkedalongway.答案Presentation關(guān)于“情態(tài)動詞+havedone”結(jié)構(gòu)“情態(tài)動詞+havedone”結(jié)構(gòu)表示過去的行為或情況。能夠用于“情態(tài)動詞+havedone”結(jié)構(gòu)的情態(tài)動詞有should，oughtto，can，could，must，may，might，would，need，wouldlike/loveto等。用法歸納如下：Presentation1.needn’thavedone表示“做了不必做的事情”。Youneedn’thavecomesoearlytoday.你今天不必來這么早的。Youneedn′thavewaitedforus.你本不必等我們的。Presentation2.wouldlike/lovetohavedone表示“過去想做而未做的事”。Iwouldliketohavegonetoyourweddingparty.ButIwastoobusythatday.我原本想去參加你的婚禮晚會的，可那天我太忙了。Shewouldliketohavegivenyouanexpensivepresent,butshewasshortofmoney.她本打算送你貴重的禮物?？伤诸^錢緊。IwouldliketodrunkmorewineatthepartybutIhappenedtohaveastomachachethatday.我本想在聚會上多喝點酒的，可碰巧那天胃痛。PresentationYououghtto/shouldhavecomeearlier.你應(yīng)該早點來。Heshouldn’t（oughtn′tto）havequarrelledwithhiswife.他不該和妻子吵架。Youshould（oughtto）havetoldmeaboutyourfamily.你本該告訴我你家里的情況。3.should（not）/ought（not）tohavedone表示“責備”，責備該做的事未做或不該做的事情又做了。Presentation4.must/may（not）/might（not）/can’t/couldn’thavedone表示對過去某種“可能性”的推測。Theymusthaveknownthesecret.他們一定知道了這個秘密。Toddcan’thavereachedhome.托德不可能到家了。Yourfriendsmay（not）haveknownwhathappenedtoyou.你的朋友們允許（不）知道你所發(fā)生的事。Theheadteachermay（might）haveknownaboutthatmatter.班主任也許知道那件事了。Shecouldhavecaughtthebus.她本能夠趕上車的。Presentation5.would/could/might/shouldhavedone表示與過去情況相反的虛擬。Butforyourhelp,wewouldn’t/couldn’thavecompletedthetaskaheadoftime.沒有你們的幫助，我們不可能提前完成任務(wù)。Wemighthavegotintotroubleiftheyhadn’tgivenustheadvice.如果他們不給我們建議，也許我們陷入了困境。Spotlight1.Noonewillhelpme.Ishalldie.Nooneshallhelpme.Iwilldie.第一句中的情態(tài)動詞will和shall表示“可能性”，句意為“沒人救我，我會死”；第二句中的情態(tài)動詞will和shall表示強烈意愿色彩，句意為“誰也不要救我，我要死”。SpotlightWouldyoulike/lovesomethingtoeat?你想吃點東西嗎？2.wouldlike/love結(jié)構(gòu)下面是wouldlike/love的三個不同的結(jié)構(gòu)：1）wouldlike/lovesth“想要某東西”SpotlightWewouldlike/lovetotravelinSingapore.我們想要去新加坡旅行。2）wouldlike/lovetodosth“想要做某事”SpotlightWhatwouldyoulike/lovemetodoforyou?你想要我為你做什么？I’dliketheworktobedonetoday.我想今天把活干了。3）wouldlike/lovesbtodosth“想要別人做某事”Spotlight4）上面結(jié)構(gòu)還要與下面兩個結(jié)構(gòu)區(qū)分開來：like/lovetodosth/doingsth.喜歡做某事。feellikedoingsth.想要做某事。Practice1.Itwassonoisythatwe_____hearourselvesspeak.（2015浙江）A.couldn'tB.shouldn'tC.mustn’tDneedn’t答案：A?！疤沉耍覀兟牪坏阶约旱恼f話聲”2.—I’vepreparedallkindsoffoodforthepicnic.—Doyoumeanwe_____bringanythingwithus?（2014湖南）A.can’tB.mustn’t C.shan’t D.needn't答案：D。由第一句“準備了食品”可推測后文“不必帶東西”。鏈接高考Practice3.Thechildren______lostinthewoods；otherwise，theywouldhavebeenatthelakesidecampasscheduled.（2013陜西）A.musthavegotB.mustgetC.shouldhavegotD.shouldget答案：A。musthavedone表示對過去發(fā)生事情的肯定推測。4.—Whyareyoureyessored?You______havesleptwelllastnight.—Yeah，Istayeduplatewritingareport.（2013四川）A.can’tB.mustn’tC.needn’tD.won’t答案：A。根據(jù)語境“眼睛那么紅，昨晚不可能睡得很好”可知，此處用情態(tài)動詞的否定式can’thavedone，表示對過去的推測。Practice根據(jù)漢語完成下列句子，每空填一個詞：1.你也許知道我來的目的，不是嗎？You_____________________whatI’vecomefor,________you?2.誰也別想從我這里知道答案。我不會告訴任何人的。Nobody_____________theanswerfromme.I_______tellittoanybody.3.—要我?guī)湍阏业酱鸢竼?？—不用了。我一定要自己找?！猒________Ihelpfindtheanswerforyou?—No,you_________.I_________finditmyself.4.他們一定是遲到了，不然不會站在教室后面。They_____________________late.Orthey_______standatthebackoftheclassroom.5.我不該把這事告訴你的。我要想到你會著急的。I_________________youaboutit.I______knowyou_____beworried.隨堂練習Practice答案1.may/mighthaveknown,haven’t2.shallget,won’t3.Shall,needn’t,will4.musthavebeen,won’t5.shouldn’thavetold,should,would/mightPractice選擇正確選項填空1.Lucydoesn’tmindlendingyouherdictionary.She_________.I’vealreadyborrowedone.A.can’tB.mustn’tC.needn’tD.shouldn’t2.John,lookatthetime._________youplaythepianoatsuchalatehour?A.MustB.CanC.MayD.Need3.You_________playoutside,butyou_________comebackbeforelunchtime.A.may,canB.can,needC.should,mayD.can,mustPractice4.You_________mydictionaryawaywithouttellingme.I’velookedforiteverywhereintheroom.A.mustn’thavetakenB.couldn’ttakeC.maynottakeD.shouldn’