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1、Unit2TheenvironmentGrammarandusage2教 材:牛津高中英语(模块五)高二上学期文档内容:教学设计—教案单 元:Unit2Theenvironment板 块:Grammar2Thoughtsonthedesign:本节课是本单元Grammar的第二课时,内容是现在分词短语,目的是让学生了解现在分词短语在句中作状语,可表示时间,原因,结果,条件等。非谓语动词在高中语法的学习中占了十分重要的地位,也是学生在学习中比较难掌握的一项语法内容。因此课时的设计上,由易到难,让学生在其轻松愉快的环境中掌握所学的内
2、容。Teachingaims:Afterlearningthissection,thestudentswillbeableto:1.knowtheverb-ingcanexpressthetime,thereason,theresultandthecondition.2.havetheopportunitytopractiseusingverb-ingphrases.Teachingprocedures:Step1Revision(PPT4)Revisionoffunctionsofverb-ingformasattribute,pr
3、edicative,objectcomplement[Explanation]课前对上一课时内容回顾,以促进学生对现在分词在句中作定语、表语和宾语补足语作用的掌握。Step2Adverbial(PPT5-14)①Seeingtheteacherenteringtheroom,thestudentsstoodup.②Beingastudent,hewasinterestedinsports.③Havingwrittentheletter,Johnwenttothepostoffice.现在分词作状语时,注意如下三点:1.相当于相应的从句
4、(PPT6-8)Rewritesentences1)Becauseheknewthattherewasadogoutside,thelittleboydidn’topenthedoor.=Knowingthattherewasadogoutside,thelittleboydidn’topenthedoor.(原因)2)Thecouplewentshopping.Asaresult,theylefttheireldestdaughteraloneathome.=Thecouplewentshopping,leavingtheireld
5、estdaughteraloneathome.(结果)3)Timepermitting,Iwillmeetyouforlunch.=Iftimepermits,Iwillmeetyouforlunch.(条件)4)Askingaround,Ifindmanypeoplewillingtopayslighthigherpricesforthingsthatareenvironmentally.=whenIaskaround,Ifindmanypeoplewillingtopayslighthigherpricesforthingstha
6、tareenvironmentally.(时间)2.分词的逻辑主语就是全句的主语(PPT9-10)Hetraveledontheplanelikethis,keepingthetortoisehiddeninablanket.(keeping的逻辑主语和句子的主语一致,都是he)_______throughthepark,beautifulflowerscouldbeseeneverywhere.(B)A.WalkingB.WhenIwalkedC.WalkD.Walked3.现在分词作状语时有不同的时态与语态(PPT11-14)1)
7、完成主动式Havingfinishedherhomework,shewenttobed.Havingheardthis,thewomanastronautexpressedhersatisfaction.分词所表示的动作发生在句中谓语动词所表示的动作之前,一般在句中作时间或原因状语用,不能做定语用。2)一般被动式表示正在发生的被动动作,在句中作定语或状语。Thecarbeingrepairedismine.=Thecarwhichisbeingrepairedismine.Beingrepaired,thecarcan’tbeused
8、.=As/Becauseitisbeingrepaired,thecarcan’tbeused.3)完成被动式表示发生在谓语动作之前的被动动作,在句中多作状语,不能作定语。Havingbeenpraisedasecond