英语人教版九年级全册Unit 7 Section A 1a—2d.ppt

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1、被动语态胡林中学袁正佳语态：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.(被动语态)语态Review：主动语态1.一般现在时am/is/are或do/does一般过去时was/were或did2.一般将来时shall/will/(am/is/aregoing)+do过去将来时should/would/(was/weregoin

2、g)+do3.现在进行时am/is/are+doing过去进行时was/were+doing4.现在完成时have/has+done过去完成时had+doneSuchbooksarewrittenforchildren.这些书是为儿童写的。被动语态的用法（1）当不知道或没有必要指出谁是动作的执行者时It’ssaid/reported/+that…据说/据报道It’sreportedthatitwillraintomorrow.据报道，明天会下雨。（2）强调动作的承受者，这时应用by短语。ThecupwasbrokenbyDavid.（3）作客

3、观说明时，常采用一种被动语态句型.1.一般现在时的被动语态结构：is/are+过去分词CarsaremadeinChina.Thedeskismadeofwood.Englishistaughtinourschool.如何由主动语态变成被动语态呢？bymanystudents.1.ManystudentsstudyEnglish.Englishisstudied2.Theymakeshoesinthatfactory.Shoesaremadebytheminthatfactory.1.一般现在时的被动语态结构：is/are+过去分词1.将主动

4、语态的宾语变为被动语态的主语。2.将主动语态的谓语动词由主动变为被动3.将主动语态的主语变为被动语态中介词by的宾语放在谓动词之后运用一下吧TheyplayfootballonSunday.Lucydoesthehomeworkintheevening.Theyoftenusecomputersinclass.WemakethesemachinesinBeijing.FootballisplayedbythemonSunday.ThehomeworkisdonebyLucyintheevening.Computersareoftenusedb

5、ytheminclass.ThesemachinesaremadeinBeijing.1.Theyboughtacomputerlastterm．bythemlastterm.2.一般过去时的被动语态结构：was/were+过去分词lastyear.2.Weplantedmanytreeslastyear.ManytreeswereplantedAcomputerwasboughtTheybuiltthetallbuildinglastyear.Hetookgoodcareofhislittlebrotheryesterday.Weclean

6、edourclassroomjustnow.Theyusedtheroomsforresting.Thetallbuildingwasbuiltbythemlastyear.Hislittlebrotherwastakengoodcareofbyhimyesterday.Ourclassroomwascleanedbyusjustnow.Theroomswereusedforrestingbythem.3.一般将来时的被动语态结构：begoingtobe/willbe+过去分词1.Theywillfinishtheworkintendays.

7、bythemintendays.Theworkwillbefinished2.Tomisgoingtocleantheroomtomorrow.TheroomisgoingtobecleanedbyTomtomorrow.Wewillheldasportsmeetingnextweek.Childrenwilltakesomephotosintheschoolyardtomorrow.Theheadmasterisgoingtogiveatalkthisafternoon.Asportsmeetingwillbeheldbyusnextwee

8、k.Somephotoswillbetakenbychildrenintheschooltomorrow.Atalkisgoingtobegivenbythehea