被动语态-(含特殊情况).ppt

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1、Youwon’tbeallowedtoplaycomputergamesifyouhaven’tfinishedyourhomework.A:Wherewerecomputersinvented?B:TheywereinventedinAmerica.A:Whenwerecomputersinvented?B:Theywereinventedin1946.Lookandtalkaboutthepicture.中考专项复习ThePassiveVoice被动语态复习要点一、被动语态的基本结构二、被动语态的各个时态三、被动语态中的特殊情况1.语态分类：主动语态：主语

2、是动作的执行者。Wecleantheclassroomeveryday.被动语态：主语是动作的承受者。Theclassroomiscleanedbyuseveryday.3.主动变被动的方法:Shewaterstheflowerseveryday.—————宾________________be+过去分词—————by+宾语—————谓———主总结:主动语态被动语态①宾语→②谓语→③主语→其他→主语be+过去分词by+宾语不变Theflowersarewateredbyhereveryday.________________主时态看原句人称数看新主语你能把下列

3、句子改为被动态吗？1.Policecanusemicroblogtocatchthieves!Microblog2.Thepolicecaughtathiefthroughmicroblog.Athiefcanbeusedtocatchthievesbythepolice.wascaughtbythepolicethroughmicroblog.被动语态的基本结构:be+过去分词考点一:有各种时态的变化考查要点：被动语态一般现在时一般过去时一般将来时含有情态动词am/is/are+donewas/were+donewill/shall/begoingto+be

4、+done情态动词+be+done被动语态中考实战1.Moreandmorecars___inChinanow.(2009广东)A.areproducedB.produceC.areproducingD.haveproduced2.–MayIuseyourcup,Tom?--Sorry,it____bymysisterjustnow.(2011长沙)A.wasbrokenB.isbrokenC.brokeD.bebroken中考链接被动语态中考实战3.Afriendlybasketballmatchbetweenteachersandstudents_____

5、tomorrowafternoon.(2011浙江)A.washeldB.willbeheldC.willheldD.mustbeheld4.Wastepapershouldn’t_____everywhere.It’sourdutytokeepourcityclean.(2009重庆)A.throwB.isthrownC.bethrownD.arethrown中考必考1.Allthestudents__________(ask)tobringakitewiththemlastSunday.2.Thephotos__________(take)byAmeric

6、anchildrenyesterday.3.Somephotos_________(take)byAmericanchildrenareverynice.4.ThePRC_____________(found)onOctober1,1949.5.Largenumbersofplasticbags__________(use)inthesupermarketseveryday.7.______Lesson50___________(teach)nextweek?8.Thetreesmust_______(put)straightinthehole.9.Ourho

7、meworkshould____________(finish)byusontime.Ex:用所给词的适当形式填空。wereaskedweretakentakenwasfoundedareusedWillbetaughtbeputbefinished过去分词做后置定语Tips：先语态，，后时态考点二:被动语态中的特殊情况:注意问题一：一些感官或使役动词主动语态中用不带to的动词不定式作宾语补足语，改成被动语态时，to必须还原。主动：see/watch/hearsb.dosth被动：beseen/watched/heardtodosth主动：let/havesb

8、.dosth.被动：belet/had