2019高考英语基础保分篇第六讲情态动词课件新人教版.ppt

,读语篇，悟语法。反复朗读下列短文，领悟画线黑体部分。思考：各个情态动词的含义；什么情况下用情态动词的完成式，分别表达什么含义。Lucyisanoutgoinglady.Shecan1playmanykindsofmusicalinstruments.Actually,shecould2playthepianowhenshewas8yearsold.Lucyalsokeepstakingexerciseeveryday.Shesaysthatshehasto3dosomesportsbecauseshemust4keepslim.“Youshall5getfatsoonifyoudonttakeexerciseeveryday.”sheusuallysaystoherfriends.Asforher,anelegantladyshould6trytokeepfit.However,lastweek,shefoundthatshemight7putonweightandshewasworriedanddecidedtoloseweight.Andthesedayssheisalwaysthinkingthatshemay8succeedsoonifshetriesallherbest.However,sheisalwayslackoftimebecausesheoughtto9takecareofherchildren.,Onenightaftersupper,shewalkedquicklyinordertogodancingattheTomorrowParkandshewaslate.Onherway,shethoughtthatthedancingmusthavebegun10,andthecoachcouldhavetaughtorshown11manynewmoves.Shewasafraidthatherfriendsmighthaveleft12beforeshegotthere.Shewasregretfulthen.Sheshouldhavehad13supperearlier,orshecouldhavetakenataxi14,andindeedsheneednthavetaken15abathinadvance.Whenshereachedtheparkfinally,shefoundnobodywasthere.Sherememberedsuddenlythatithadbeenreportedontheradiothattherewouldbeaheavyrainthatnight.,1can在此表示能力。2could在此表示能力，是can的过去式。3haveto表示“不得不”，强调客观需要。4must表示“必须”，强调主观想法。5shall表示说话者的意图、允诺、告诫、警告等，用于陈述句的第二、第三人称。6should表示劝告或建议，意为“应该”。7might在此是may的过去式，表示“可能”。8may表示“可能”。,9oughtto“应该”，表示义务或责任，比should语气重。10musthavedone表示对过去已经发生的事进行推测，意为“想必已经做了某事”。11couldhavedone表示对过去情况的推测，意为“可能已经做了某事”。12mighthavedone表示“或许已经做了某事”。13shouldhavedone表示“本应该做某事(但没有做)”，有责备和懊悔之意。14couldhavedone意为“本来可以做某事(但没有做)”，有懊悔之意。15neednthavedone表示做了本来不必去做的事情，意为“本不必做某事(但却做了)”。,.单句填空(用must,can,may,might，shall,should,cant,neednt,mustnt填空。)1I_worryaboutmyweekendIalwayshavemyplansreadybeforeites.2Justbepatient.You_expecttheworldtochangesosoon.3MayItakethisbookoutofthereadingroom?No,you_.Youreadithere.4You_parkhere!Itsanemergencyexit.5Icantleave.ShetoldmethatI_stayhereuntilsheesback.,neednt,cant,mustnt,mustnt,must,6IdontreallylikeJames.Whydidyouinvitehim?Dontworry.He_note.Hesaidhewasntcertainwhathisplanswere.7It_havebeenTomthatparkedthecarhere,asheistheonlyonewithacar.8Thetrafficisheavythisday;I_arriveabitlate,socouldyousavemeaplace?9ItisusuallywarminmyhometowninMarch，butit_berathercoldsometimes.10She_haveleftschool,forherbikeisstillhere.,may/might,must,might,can,cant,.单句改错(下列每句中有一处错误，每处错误仅涉及一个单词的增加、删除或修改，请指出并改正。)1IusedtolivinginHunanbutnowIliveinGuangzhou._2Shecouldsangverywellwhenshewasagirl._3Youdbettertowearrubbers,foritsrainingoutside._4Iwouldrathertoworkthanplay._5Iaskedhimwhetherheneedsgothere._6Somethingiswrongwithmyputeranditneedrepairing._,livinglive,sangsing,去掉to,去掉to,needsneed,needneeds,7Icanhavelentyouthemoney.Whydidntyouaskme？_8Sheshouldabletogiveusagoodanswer._9Judgingfromwhatyousay,heoughtsucceed._10Youmustnthavetoldhimthenews;heknewitalready._,cancould,在able前加be,在ought后加to,mustntneednt,第二课时写作增分课,情态动词在写作中的增分点一、利用情态动词的语法特征写对句子1他能游过那条河。(can,swim,acrosstheriver)_2她可能反对这件事。(may,objectto)_3他必须不遗余力学好英语。(must,sparenoeffort,learnEnglishwell)_,Hecanswimacrosstheriver.,Shemayobjecttoit.,HemustsparenoefforttolearnEnglishwell.,4我明年就能开车了。(will,beableto,driveacar)_5我不会再迟到了。(wont,late)_6你最好尽你最大努力，来实现父母对你的期望。(hadbetter,tryonesbest,liveupto,expectations)_,Iwillbeabletodriveacarnextyear.,Iwontbelateagain.,Youhadbettertryyourbesttoliveuptoyourparentsexpectations.,7你不必告诉他什么。(need/haveto)_8她不敢单独在夜里出去。(dare,alone)_,Youneednttellhimanything./Youdonthavetotellhimanything.,Shedarentgooutatnightalone./Shedoesntdaretogooutatnightalone.,二、利用情态动词的推测性用法写靓句子1我家乡春天的天气相当暖和，但有时也会非常得冷。(weather,fairlywarm,can,extremelycold)_2你在山路上开车时一定要小心，因为有时可能很危险。(drivedownthemountainousroad)_,Theweatherinmyhometownisfairlywarminspring,butitcanbeextremelycoldsometimes.,Youmustbecarefulwhenyoudrivedownthemountainousroad,becauseitcanbedangerous.,3我明天或许不会去看你，因为我的叔叔明天可能来。(might,callon,dropin)_4现在，他不可能在和他的同学一起旅游。相反，他一定是在家里学习。(tourwith,study)_,Imightnotcallonyoutomorrow,becausemyunclemightdropin.,Atthemoment,hecantbetouringwithhisfriends.Onthecontrary,hemustbestudyingathome.,5是因为我学习不够努力，还是因为我学习方法不当？(can,workhardenough,intherightway)_6他随时会到。(should,anymoment)_,CanitbebecauseIhaventworkedhardenoughorbecauseIhaventstudiedintherightway?,Heshouldbehereanymoment.,三、利用“情态动词havedone”写高级句子1那天上学我迟到了。我可能把闹钟关掉后又睡着了。(turnoffthealarmclock,fallasleep)_2我到家后发现我的钱包不见了。或许我把它遗忘在你的出租车上了。(cantfindmywallet,leave,taxi)_,Iwaslateforschoolthatday.Imighthaveturnedoffthealarmclockandfallenasleepagain.,IcouldntfindmywalletwhenIgothome.Imighthaveleftitinyourtaxi.,3她不可能已经走了，因为她的手提包还在这里。(leave,handbag,lie)_4他可能是去北京了，因为他曾经说过他的姑姑在那里工作。(could,oncesaid)_5我一定是在回家的路上把它弄丢了。(dropitsomewhereonmywayhome)_,Shecanthaveleft,becauseherhandbagisstilllyinghere.,HecouldhavegonetoBeijing,becauseheoncesaidhisauntworkedthere.,Imusthavedroppeditsomewhereonmywayhome.,四、巧用“will,shall,would,usedto”增加句中“惹眼”成分1如果你不听我的建议，你会后悔一辈子的。(followonesadvice,regret)_2我尽力推门，门就是不开。(push,wouldnt)_3我告诉他不要辍学，但他不愿意听。(tell,dropoutofschool)_,Ifyoudontfollowmyadvice,youshallregretfortherestofyourlife.,Itriedtopushthedoor,butitwouldntopen.,Itoldhi