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时间:2020-07-31
《九年级英语Unit_3被动语态课件人教版新目标_2 .ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、1.Teenagersshouldbeallowedtochoosetheirownclothes.2.Englishisspokenbymanypeople.3.Theticketsaboutheroesaresoldout.4.RiceisplantedinSouthChina.被动语态语态语态:表示主语和谓语动词之间的关系。英语有两种语态,即主动语态和被动语态。主动语态:表示主语是动作的执行者。被动语态:表示主语是动作的承受者。如:ManystudentsstudyEnglish.(主动语态)Englishisstudiedbymanystudents
2、.(被动语态)助动词be有人称、数的变化,其变化规则与be作为连系动词时一样。如:Thedeskismadeofwood.Thedesksaremadeofwood.被动语态的结构助动词be+及物动词的过去分词不同的时态有不同的被动语态结构1.一般现在时的被动语态结构:bymanystudents.主动语态变被动语态的方法1.ManystudentsstudyEnglish.Englishisstudied2.Theymakeshoesinthatfactory.Shoesaremadebytheminthatfactory.主动语态变被动语态的方法1.把主
3、动语态的宾语变为被动语态的主语。2.把主动语态的谓语变为被动语态的谓语。3.把主动语态的主语变为被动语态的by短语。(①by短语可以省。②by短语后跟代词的宾格。)bytheteacher.3.Theteacheroftenaskshimquestions.Heisaskedquestions1.找宾语----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
4、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madeTheyplayfootballonSunday.Lucydoesthehomeworkintheevening.Theyoftenusecomputersinclass.WemakethesemachinesinBeijing.FootballisplayedbythemonSunday.ThehomeworkisdonebyLucyintheevening.Computersareoftenusedbytheminclass.Thesema
5、chinesaremadeinBeijing.PracticeThehomeworkisdonebyLucyintheevening.Computersareoftenusedbytheminclass.ThesemachinesaremadeinBeijing.FootballisplayedbythemonSunday.Practice肯定句:主语+be+过去分词+(by~)否定句:主语+benot+过去分词+(by~)一般疑问句:Be+主语+过去分词+(by~)?特殊疑问句:疑问词+be+主语+过去分词+(by~)bymanystudents.Engl
6、ishisstudiedbymanystudents.Englishisnotstudied句式IsEnglishstudiedbymanystudents?WhoisEnglishstudiedby?1.Theyboughttencomputerslastterm.bythemlastterm.2.一般过去时的被动语态结构:was/were+过去分词lastyear.2.Weplantedmanytreeslastyear.ManytreeswereplantedTencomputerswereboughtTheybuiltthetallbuildingl
7、astyear.Hetookgoodcareofhislittlebrotheryesterday.Wecleanedourclassroomjustnow.Theyusedthisroomforresting.Thetallbuildingwasbuiltbythemlastyear.Hislittlebrotherwastakengoodcareofbyhimyesterday.Ourclassroomwascleanedbyusjustnow.Thisroomwasusedforrestingbythem.3.一般将来时的被动语态结构:willbe+过
8、去分词1.Theywillfinishthework
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