新概念英语141课语法与课文.ppt

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1、Lesson141Sally’sfirsttrainride.萨利第一次乘火车旅行PassiveVoice被动语态Englishisspokenbythemostpeopleintheworld.spokenEnglishTheGreatWallwasbuiltbyChinesepeople.builtThetreeswereplantedbystudents.planted英语动词有两种语态：主动语态(theActiveVoice)被动语态(thePassiveVoice)Whatisit?A.主动语态表示主语是动作的执行者。B.被动语态表示主语是动作的承受者。Weplante

2、dthetree.Thetreewasplantedbyus.被动语态结构：be+过去分词(P.P)+(by…)主动语态变被动语态解题步骤:1.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.arewere3.判断动词的时态----即be动词的时态.4.修改谓语的时态----即原句动词改为过去分词made5.修改原句的主语----即by+主语.bythem.Wecleanedtheclassroomyesterday.Theclassroomwascleanedbyus...dodiddo

3、negowentgoneseesawseengivegavegivenchoosechosechosendrawdrewdrawneatateeatentaketooktakenspeakspokespokenwritewrotewrittenshowshowedshownbuyboughtboughtcatchcaughtcaughtthinkthoughtthoughtteachtaughttaughtbuildbuiltbuiltkeepkeptkepthearheardheardfindfoundfoundmakemademadetelltoldtoldcutcutcut

4、sendsentsent一般现在时的被动语态：am/are/is+过去分词+(by…)1.Peopleplayfootballallovertheworld.2.Galaxyteachesusthisterm.Footballallovertheworld.Wethisterm.isplayedbypeoplearetaught(byGalaxy)一般过去时的被动语态：was/were+过去分词+(by…)3.PeoplebuilttheGreatWalllongago.4.Myclassmatesplantedmanyflowersyesterday.TheGreatWall_

5、__________________longago.Manyflowers______________________________yesterday.wasbuilt(bypeople)wereplanted(bymyclassmates)情态动词的被动语态：must/should/can等+be+过去分词5.Youmustthrowthebrokenglassawayatonce.6.Wecanfinishourhomeworkontime.Thebrokenglassatonce.Ourhomework_____________________ontime.mustbe

6、thrownaway(byyou)canbefinished(byus)Let'spractice1.Peopleuseknivesforcuttingthings.Knives___________forcuttingthings.2.ThestudentsinthisschoolstudyGerman.German_______________bythestudentsinthisschool.areusedisstudied3.Ifoundtheticketonthefloor.Theticket____________onthefloor.4.Itoldhertoretu

7、rnthebookintime.She_____________toreturnthebookintime.wasfoundwastold5.Hecanmendthebikeintwodays.Thebike___________________intwodays.6.Youmusttakethismedicinethreetimesaday.Thismedicine__________________threetimesaday.canbemendedmustbetaken1.