初中英语语法之--被动语态课件.ppt

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1、被动语态1.Teenagersshouldbeallowedtochoosetheirownclothes.2.Englishisspokenbymanypeople.4.Lucky52iswatchedonTVbymanypeople.3.Theticketsaboutheroesaresoldout.5.RiceisplantedinSouthChina.6.Heissaidagoodboy.语态：英语的语态是动词的一种形式，用来表示_____和__________之间的关系。英语有两种语态,即________和________。

2、主动语态：表示主语是动作的_______。被动语态：表示主语是动作的________。如：ManystudentsstudyEnglish.(_________)Englishisstudiedbymanystudents.(__________)语态主动语态被动语态执行者承受者主语谓语动词主动语态被动语态一.被动语态的构成_____________________________________助动词be+(及物动词的)过去分词构成动词的被动语态的形式。助动词__有___、___和____的变化，其变化规则与be作为系动词的变化完全

3、一样。一般现在时的被动语态:__________+动词的过去分词如：Thedesk____madeofwood.Thedesks____madeofwood.He____askedaquestionbytheteacher.isarewasbe人称数时态主语+be+v-ed（及物）+（by+动作执行者）am/is/arebymanystudents.1.ManystudentsstudyEnglish.Englishisstudied2.Theymakeshoesinthatfactory.Shoesaremadebytheminth

4、atfactory.二.主动语态变为被动语态的步骤1.把主动语态的_____变为被动语态的______。如主动句的宾语是代词，需将其由_____变为____。2.把主动语态的谓语变为_____语态的谓语。________________3.把主动语态的主语变为被动语态的____短语。①by短语可以省。②by短语后跟代词的___格。bytheteacher.3.Theteacheroftenaskshimquestions.Heisaskedquestions主动语态变为被动语态的步骤宾语主语宾格主格被动be+过去分词by宾1.找宾语-

5、---即动作的承受者Theymakeshoesinthatfactory.Shoes2.判断宾语的单复数----即be动词的单复数.are3.判断动词的时态----即be动词的时态.4.修改谓语的形式----即原句动词改为过去分词5.修改原句的主语----即by+宾语（原主语）.bythem主变被解题步骤主变宾,宾变主,谓动bedone时不变,人称、数、格随着变madeinthatfactoryTheyplayfootballonSunday.Lucydoesthehomeworkintheevening.Theyoftenuseco

6、mputersinclass.WemakethesemachinesinBeijing.FootballisplayedbythemonSunday.ThehomeworkisdonebyLucyintheevening.Computersareoftenusedbytheminclass.ThesemachinesaremadeinBeijing.Practice三.被动语态的句式变化肯定句：____________________________否定句：_______________________________一般疑问句：__

7、__________________________特殊疑问句：________________________________________bymanystudents.Englishisstudiedbymanystudents.English____________isnotstudied____English________bymanystudents?_______English_______by?主语＋be+过去分词＋(by~)主语＋benot＋过去分词＋(by~)Be＋主语＋过去分词＋(by~)?疑问词＋be＋主语＋过

8、去分词＋(by~)IsstudiedWhoisstudiedThehomeworkisdonebyLucyintheevening.Computersareoftenusedbytheminclass.Thesemach