人教版必修5英语Unit3Grammar公开课教学设计VIP专享VIP免费

Unit3Grammar公开课教学设计（二）Title:分词作状语的两个条件目的要求1.让学生根据分词作状语的特征学会判断分词是否作状语.2.让学生掌握分词作状语的解题技巧.重点难点1.如何判断一个分词在句中充当状语。.2.在分词作状语中，如何选择过去分词还是现在分词.TeachingProcessTeachingMethodsStep1LeadinShowtwosentencestostudentsandthenleadinthetopicofthisperiod.1.Whenyouarecrossingtheroad,youshouldbecareful.=Crossingtheroad,you⋯2.WhenIwasplayingthepiano,someonesuddenlyknockedatthedoor.Playingthepiano,someone⋯(False)Step2:ReadandfindAskthestudentstoreadthefollowingsentencesandthinkoverthequestion.分词作状语有何特征？1.Workinghard,youwillsucceed.2.Givenmoretime,Iwoulddoitbetter.3.Hisfatherdied,leavingthefamilyevenworseoff.总结1.分词的逻辑主语为该主句主语。2.通常有一个逗号与主句隔开，主句前没有并列连词如so,and,but,or等。3.可放句首或句末。Exercise1:TrueorFalseStudyinghard,andyouwillmakegreatprogress.(False)Howtocorrectit?Task-basedteachingmethod;Multimedia.Studyinghard,youwillmakegreatprogress.Studyhard,andyouwillmakegreatprogress.Step3:CompareAskstudentstocomparethefollowingsentencesandthendrawaconclusion.1.Working(work)hard,youwillsucceed.2.Giving(give)moretime,Iwoulddoitbetter.分词作状语时，必备两个条件：1.分词的逻辑主语必须与句子的主语一致；2.分词与主句的主语关系是主动关系或被动关系。Exercise2TrueorFalse1.Askedwhyshewaslate,herfacewentred.(False)2.Askedwhyshewaslate,shewentredintheface.(True)3.Seenfromthehill,thecitylookslikeabiggarden.(see)4.Seeingfromthehill,youcangetthewholetown.(see)Step4:解题注意的方面Showthefollowingsentencestostudentsandthenaskthemtothinkaboutwhattheyhaveincommon.1.Generallyspeaking,themoreyoupay,themoreyouget.2.Dressedinred,shelooksmorebeautiful.1.有些短语是固定搭配，不受主语影响。如：considering,comparedwith，judgingfrom(by)supposing/providingthat,generallyspeaking2.有些过去分词作状语时已形容词化，不表被动或完成，而表主语的状态。如：beseated（坐）；hidden（躲）；belost/absorbedin（沉溺于)；bedressedin（穿着）；betiredofbeworriedabout;besatisfiedwith;beinterestedinStep5:SummaryAskstudentstomakeaconclusionaboutthecontentofthisperiod.一.分词作状语的两个条件？1.分词的逻辑主语必须与句子的主语一致；2.分词与主句的主语关系是主动关系或被动关系。二.分词作状语时，如何解题?1.找关系：与主语是主动还是被动2.牢记特殊情况：A.固定搭配B.某些过去分词作状语时表主语的状态。课后反思