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1、内蒙古翁牛特旗乌丹第一中学高中英语unit3Grammar教案新人教版必修5教学目标:1.Learnaboutthepastparticipleusedastheadverbial2.Knowthedifferencebetweenthepastparticipleandthepresentparticiple.教学重、难点:1.Masterthepastparticipleusedastheadverbial2.EnabletheSstousethepastparticipleusedastheadve
2、rbialfreelyandproperlyinwriting.教学方法:Task-basedteachingandlearning教学内容:Step1RevisionStep2Leadin.Step3PresentationThemuseumwasbuiltin1910.Themuseumisalmost100yearsold.CombinethetwosentencesusingthePastParticipleastheAdverbial.Builtin1910,Themuseumisalmos
3、t100yearsold.Inthissentencethepastparticipleisusedas_______________.Itisawaytojointwoclausestogether.过去分词(短语)作状语,像现在分词作状语一样,修饰谓语动词,大多是用来进一步说明动作发生的背景或情况,在意义上相当于状语从句,表示时间、原因、条件、让步、方式或伴随情况等。一.过去分词(短语)作状语的几种情况1.作时间状语,相当于一个__________状语从句.Whenaskedbytheteacher,
4、thelittleboykeptsilent.=Whenhewasaskedbytheteacher,thelittleboykeptsilent.3.作条件状语,相当于一个__________状语从句.Givenmoretime,wecoulddoitmuchbetter.=_________________________________,wecoulddoitmuchbetter.4.作让步状语,相当于一个__________状语从句.Warnedofthestorm,thefarmersweres
5、tillworkinginthefields.=_________________________________,thefarmerswerestillworkinginthefields.归纳:把分词短语转变为状语从句时,该状语从句应该具备两个特征:1)从句的主语和主句的主语________________。2)从句的谓语动词为_____________形式。5.作方式或伴随情况状语,相当于一个______________。Theyoungmanwasbusypreparinghispaper,loc
6、kedinhisfather’sstudyalldaylong.Theoldmanstoodup,___________(support)byhisson.=Theoldmanstoodup,andhe_______________(support)byhisson.注意:要分析句子结构,弄清楚该填__________还是_____________.二.过去分词作状语的注意事项(1)过去分词作状语,其逻辑主语通常要与句子的__________一致;(2)过去分词充当状语时,其前可加when,while,i
7、f,once,unless,though/although等连词。If(itis)translatedwordbyword,thepassagewillbedifficulttounderstand.Evenifinvited,Iwon’tgo.=Evenif__________invited,Iwon’tgo.此时连词+过去分词相当于一个含有被动语态的______________。这种带有连词的过去分词通常可看作是一种省略句,省略的部分是________________,省略的主语要与_________
8、_______相同。(3)有些过去分词及短语来源于系表结构,作状语时并不强调被动而重在描述主语的状态。这样的过去分词及短语常见的有:lost(迷路);seated(坐);hidden(躲);lost/absorbedin(沉溺于);dressedin;tiredof;devotedto;Dressedinablackcoat,helooksveryhandsome.Lostinthought,hedidn’tnoticehis