《9 教案(情态动词).docx》由会员分享,可在线阅读,更多相关《9 教案(情态动词).docx(4页珍藏版)》请在优知文库上搜索。
1、授课教案学员姓名:授课老师:杨老师所授科目:英语学员年级:上课时间:年月H时一分至一时一分共一小时教学标题中考综合复习教学目标词汇,语法,教材系统复习教学重难占八、中考考点的学习及应用语法考考点九、情态动词一.情态动词的用法1. can用法1)表示实力,与beableto同义,但Can只用于现在时和过去时,beableto可用于各种时态。Twoeyescanseemorethanone.注:Canyou?YeszIcan/No,Ican,t.2) .表示允许、请求用CoUld比Can语气更加委婉客气,常用于COUIdI/you句型中,若表示同意时,用can回答而不用could.CouldIbo
2、rrowthebook?No,youcan,t.3)。表示推想“可能”常用于否定句或疑问句中。(cant表示确定不是)Itcan,tbetrue.Canitbetrue?2. may用法1)表允许,请求=Can表示许可或征求对方的许可,常于第一人称连用。注:MayI.?Yes,youmayNo,youcan,t/mustn,t.在回答以may引起的问句时,多避开用这个词,而用其它方式,如Yes,please./CertainM2)表推想,可能、或许。常用于确定句中。Maybeheknowsthenews.=Hethenews.3.must1)表示义务。意为“必需”(主观意志)QWemustdo
3、everythingstepbystep.注:MustI.?Yes,youmust/No,youneedn,t(don,thaveto).-Mustwehandinourexercisebooksnow?-No,youneedn,t./No,youdonthaveto.2)mustn,t表禁止、不允许。Youmustnttalktoherlikethat.3)表示揣测。意为“想必、准是、确定”等,只用于确定句。否定、疑问句中must改为can.Hemustbeill.Helookssopale.She,swearingadiamondnecklace.Shemusthavealotofmone
4、y.注:must表推想时,其反义疑问句与must后面的动词一样。Theremustbesomethingwrong,?4.need的用法need既可用作情态动词,也可用作实义动词。用作情态动词时,主要否定句或疑问句中。用作实义动词时,可用于各种句式。1) .用作情态动词,用于否定句和疑问句中。a) .NeedI.?Yes,youmust/No,youneedn,t.Needwefinishtheworktoday?Yesyou_?A.needB.canC.mayD.mustb) .need+dosth.变否定句:needn,tdosth变疑问句:Needsbdosth?2) .用作实义动词a)
5、,need+todosth.Weneed(buy)someschoolthings.变否定句:don,tdoesn,tdidn,t+needtodosth.变疑问句:Do/Does/Didsb+needtosth?Yes,.do/does/didNozsbdont/doesnt/didnt.Youdon,tneedtodoityourself.b).当主语是物时。Sth+need+doingsth=Sth+needtobedone.Thetableneedspainting.=Thetableneeds.5 .hadbetter的用法1) .hadbetter+动词原形=lt,sbesttod
6、osth.Youhadbetter(stay)athome.=stayathome.2) .Hadbetternot+动词原形Wehadbetter(notplay)thecomputergames.6 .must与haveto1) .一般状况下,两者可互换。must=haveto2) .must“必需,应当”表示说话人的主观看法,即说话人认为必需干某事。(内在缘由)haveto“必需,不得不”强调客观须要,即外界因素迫使某人不得不干某事。(外界缘由)Ican,tstopplayingthecomputergames.ForyourhealthJmafraidyou.A.canC.mustD.
7、had toB.may二.情态动词后跟完成式和进行式的用法1 .情态动词后跟完成式,表“原本应当干某事,而事实上没干”Ishouldhavefinishedtheworkearlier.Heisn,there.Hemusthavemissedthetrain.2 .情态动词后跟进行式,表示“想必正在”,可能正在”,“应当正在”等意。lt,stwelveoclock.Theymustbehavinglunch.Theymaybediscussingthisproblem.Hecan,tbetellingthetruth.Sheshouldntbeworkinglikethat.She,sstillsoweak.三.情态动词的同义转换.1 .can=beableto2 .must=haveto3 .needn,t=donthaveto4 .needdosth=needtodosth.上次作业检查作业:学员课堂表现: