八年级下Unit3被动语态讲解和练习.ppt

Unit3Traditionalskills复习,主讲：李晶茹,知识概述,1.复习Unit3单词2.语法：被动语态的讲解与练习3.熟记Unit3单词，下节课课前进行小测。4.认真复习本节课所讲的内容。,单词复习,语法：被动语态,被动语态（ThePassiveVoice）：1）主动语态和被动语态：英语动词有两种语态，即主动语态（TheActiveVoice）和被动语态（ThePassiveVoice）。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),被动语态：当主语为动作的承受者时，用被动语态。结构：be+动词过去分词,1)Wecleantheclassroomeveryday.,Theclassroomiscleaned(byus),2)Teachersallowstudentstoweartheirownclothes.,Studentsareallowed(byteachers)toweartheirownclothes.,一般现在时,一般现在时,2)被动语态的结构：被动语态由“助动词be+及物动词的过去分词”构成，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.Heisaskedaquestionbytheteacher.Iwasgivenanicepresentbymyfriendyesterday.,主动句变为被动句所遵循的4个步骤：,1把原主动句中的宾语变为被动句的主语。,2把动词变为被动形式即be+过去分词，并注意其人称和数随主语的变化，而动词的时态则保持不变。,3原主动句的主语如需要则放在by后面以它的宾格形式出现（注代词的宾格），如不需要则可省略。,4其它的成分（定语、状语）不变。,主动句与被动句之间的转换Weboughtsomebooks.主语谓语动词主动语态的过去式宾语Somebookswerebought(byus)主语谓语动词被动语态的过去分词介词+宾语,Forexample:,I,love,English,.,English,isloved,byme,.,如何将主动语态变为被动语态?,ManypeoplespeakEnglish.(主动语态),Englishisspokenbymanypeople.(被动语态),Thenaughtyboybrokethewindowyesterday.(主动语态),Thewindowwasbroken(bythenaughtyboy)yesterday.(被动语态),Wecanrepairthiswatchintwodays.Thiswatchcanberepairedintwodays.TheyshoulddoitatonceItshouldbedoneatonceAllthepeoplelaughedathim.Hewaslaughedatbyallpeople.Theymakethebikesinthefactory.Thebikesaremadebytheminthefactory.Hecutdownatree.Atreewascutdownbyhim.,Brucewritesalettereveryweek.AletteriswrittenbyBruceeveryweek.2.LiLeimendedthebrokenbikethismorning.ThebrokenbikewasmendedbyLiLeithismorning.3.Hehaswrittentwonovelssofar.Twonovelshavebeenwrittenbyhimsofar.4.Theywillplanttentreestomorrow.Tentreeswillbeplantedbythemtomorrow.5.Lucyiswritingaletternow.AletterisbeingwrittenbyLucynow.6.Youmustlockthedoorwhenyouleave.Thedoormustbelockedwhenyouleave.,5)Exercises:一.选择填空:Windows_ofglass.bemadeB.ismadeC.aremadeD.beenmade2.Thehouse_in2004.isbuiltB.isbuildingC.wasbuiltD.used3.Acoatcan_forkeepingwarm.beusedB.isusedC.beenusedD.used,C,C,A,4.Watches_Shanghailastlong.A.aremadeinB.ismadeC.aremadefromD.made5.Thisdeskismade_wood.A.ofB.fromC.inD.by6.Thethingsonshowwere_theolddays.A.usedB.usedtoC.usedforD.usedin7.Silk_inHangzhouandSuzhou.A.isproducedB.areproducedC.producedD.isproduces,A,A,D,A,1.Ourschool_in2002.(开办)2.Theyoungtreesmust_well.(照顾)3._thisbuilding_(建成)lastyear?4.Thebook_(写)byhimlastyear.5.Thebridge_(不建造)in1989.6.The29thOlympicGameswill_(举行)inBeijingin2008.,wasopened,belookedafter,Was,built,waswritten,wasntbuilt,beheld,将下列句子由主动句变为被动句或由被动句变为主动句：,ZhengJieinventedthisspecialpen.变被动句,2)ThebikewasfixedupbyJimmy.变主动句,3)Peopleusesunglassestoprotecttheireyes.,4)Teachersallowstudentstoputuphandsinclass.,ThisspecialpenwasinventedZhengJie.,Jimmyfixedupthebike,Sunglassesareused(bypeople)toprotecteyes.,Studentsareallowed(byteachers)toputuphandsinclass.,用所给动词的正确形式填空：,1)Thebike_(fix)upbyXiaoMingyesterday.2)Sunglasses_(use)forprotectingpeopleseyes.3)Apicture_(put)upontheblackboard.4)French_(speak)inFrance.5)Teenagersshould_(allow)tochoosetheirownclothes.,wasfixed,areused,isput,isspoken,beallowed,练习一请把下列的主动句变为被动句（注意时态的一致）,1Hewroteanarticlelastweek.,Anarticlewaswrittenbyhimlastweek.,2Thepeoplemakehistory.,Historyismadebypeople.,3DopeopleuseChineseonlyinChina?,IsChineseusedbypeopleonlyinChina?,4Theydidntvisitthecitytwoyearsago.,Thecitywasntvisitedbythemtwoyearsago.,5Wheredidyoumakethem?,Whereweretheymadebyyou?,一用适当的形式填空1Historyis_bythepeople.(make)2Heisoften_todotheworkbytheteacher.(ask)3Thebook_byhimlastyear.(write)4Theradio_lastweek.(mend)5Sometrees_onthehillthisspring.(plant)6Anewsubway_(build)nextyear.7She_(take)tothehospitalalready.8Thousandsofsatellites_(send)upintothespacesofar.9Theysaidthey_(invite)tothepartyalready.10Thetrains_(produce)inZhuzhou.11Youngtreesshould_(water)often.,made,asked,waswritten,wasmended,havebeenplanted,willbebuilt,hasbeentaken,havebeensent,hadbeeninvited,areproduced,bewatered,MultipleChoice:,1.()Ifthework_,youcangoandplaygames.A.finishedB.hasfinishedC.willbefinishedD.isfinished,2.()Itwasrainingheavilyoutside,thechildrenweremade_intheclassroom.,3.()Ilikemybike.It_verywell.A.ridesB.isridingC.isriddenD.hasridden,D,B,A,A.stayB.tostayC.stayingD.stayed,6.()IwontcometothepartyunlessTom_,too.YoumeanifTomcomes,youllcome.,8.()Thechildrenmust_.,9.()Thewomanstilldoesntknowwhat_inherhometown,D,D,B,A.willinviteB.invitesC.invitedD.isinvited,7.()EveryonewhoheardMr.Greensstory_it.,A.laughedatB.waslaughedC.laughedD.waslaughedat,A,A.happensB.happenedC.willhappenD.washappened,whileshewasaway.,A.lookafterB.betakengoodcare,C.lookthesameD.betakengoodcareof,练习：请把下列主动句变为被动句1Thewomanaskedthepolicemanforhelp.2TheoldmanonTVtellsastoryonSunday.3Dotheyusetheboxasat