在改写中应注意：1.把原原来的宾语宾语提到前面作被动语态的主语主语;;2.把动词变成“bebe++过去分词过去分词”;3.主动语态中的主语主语变为介词byby的宾语宾语。。典型题例例1将下列句子改为被动语态。Wecleanourclassroomeveryday.Ourclassroomiscleaned(byus)everyday.1.Peopleplayfootballallovertheworld.2.Mr.Greenteachesusthisterm.Footballallovertheworld.Wethisterm.isplayedbypeoplearetaught(byMr.Green)II.Rewritethefollowingsentencesinthepassivevoice.(用被动语态改写下列句子)3.PeoplebuilttheGreatWalllongago.4.Twoyearsagoweusedthemachinestomakeshoesforchildren.TheGreatWalllongago.Twoyearsagothosemachinesshoesforchildren.wasbuilt(bypeople)wereused(byus)tomake5.Wewillwriteadiarynextclass.6.Tomisgoingtoholdabirthdayparty.Adiarynextclass.Abirthdayparty.willbewritten(byus)isgoingtobeheldbyTom7.Youmustthrowthebrokenwatchawayatonce.8.Wehavetofinishourhomeworkontime.Thebrokenwatchatonce.Ourhomework.mustbethrownaway(byyou)hastobefinished(byus)ontime9.Hehassoldoutallthetickets.10.Theyarediscussingthisquestionnow.Allthetickets________________________.Thisquestion_____________________________.havebeensoldout(byhim)isbeingdiscussed(bythem)now被动语态常由助动词be加及物动词的过去分词构成。常用的时态有：1）一般现在时Wearegivenalotofhomeworktodoeveryday.Iamaskedtocleanmyroomonceaweek.will/begoingto+be+PPPPwas/were+PPPPam/are/is+PPPP3）一般将来时Anewbuildingwillbebuiltheresoon.Thismonkeywillbesenttothezoo.2）一般过去时Thethiefwastakentothepolicestation.Thebridgewasbuilt150yearsago.4）现在完成时Alltheticketshavebeensoldout.Thepartyhasbeenplannedsincethenewyear.Have/hasbeen+PPAm/is/are+being+PP5）现在进行时Theroadisbeingbuiltnow.Thequestionisbeingdiscussed.含有情态动词的被动语态：Thismustbedoneassoonaspossible.Thesestairsareverydangerous.Theyshouldberepaired.Thiscan’tbedoneinshorttime.Thesecondpointneedn’tbediscussedtoday.must/haveto/can等+be+ppppExercises:一.选择填空:1.Windows_____ofglass.A.bemadeB.ismadeC.aremadeD.beenmade2.Thehouse_____in2004.A.isbuiltB.isbuildingC.wasbuiltD.used3.Acoatcan_____forkeepingwarm.A.beusedB.isusedC.beenusedD.usedCCA4.Watches____Shanghailastlong.A.aremadeinB.ismadeC.aremadefromD.made5.Thisdeskismade_____wood.A.ofB.fromC.inD.by6.Silk_____inHangzhou.A.isproducedB.areproducedC.producedD.isproducesAAA注意被动语态中介词的搭配：1.Allthechairsintheroomaremade_______wood.2.Thewineismade________grapes.3.Themachinewasmade__________UncleWang.4.Thiskindofbikeismade____China.5.Theradioisused_____Mike____learningEnglish.offrombyinbyfor6.Englishisused____thesecondlanguageinsomecountries.7.Someofthelettersarewritten_____French.8.Thesongwaswritten_____ateacher.9.Thearticlewaswritten_____apen.asinbywith知识拓展知识拓展思考思考11：将下列的主动句变为被动语态：：将下列的主动句变为被动语态：1．Wegavehimsomebooks.→He.→Somebooks.wasgivensomebooks(byus)weregiventotohim(byus)带有带有双宾语双宾语（宾语既有人又有物）的被动结构是（宾语既有人又有物）的被动结构是::（1）将间接宾语(人)变为主语，直接宾语(物)不变。（2）将直接宾语(物)变为主语，一般要在间接宾语前加介词toto或forfor.思考2：12．IusuallyhearhersingEnglishsongsinthemorning.Sheinthemorning.isusuallyheardtotosingEnglishsongs(byme)14．Hemakesherhorseworkallday.Herhorseallday.15.Myfatherletmegooutforapicnic.Ioutforapicnic.ismadetotoworkwaslettotogo一些特殊结构的被动结构一些特殊结构的被动结构::（1）感觉动词(hear,see等)改被动语态（2）使役动词(let,make等)改被动语态如动词为make,see,hear,watch等，后接宾语补足语为不带“to”不定式时，变被动语态时要加上“to”。如：Isawhimfalloffthetree.→Hewasseentotofalloffthetree.改错：correctthemistakesinthemaintext.LinTaoisastudent.Buthewasalittlelazyinthepast.Soheisalwayscriticizedbyhisparents.Butnowhedoesalotbetterthanbefore.Alotofstudentsishelpbyhim.Heisalwayspraisebyteacher.Mostofhisclassmatesthinkthatthefirstmustgottenbyhim.Doyouthinkso?wasalwayscriticizedarehelpedisalwayspraisedmustbegottenWriting:writeanarticleabouttheenvironment(usethepassivevoiceasmoreaspossible)提示:１.过去环境怎么样２.现在环境如何３.哪些东西发生了变化……Homework:Exercisebookpage50---53
