英语人教版九年级全册情态动词的被动语态.ppt

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1、UNIT7Teenagersshouldbeallowedtochoosetheirownclothes.GrammarTeacher:黄佳琳Howisteaproduced?1Teaplantsonthesidesofmountains.AgrowBgrewCaregrown2Whentheleavesareready,theybyhand.ApickBarepickedCpicked3Thentheleavesforprocessing.AaresentBsendCsentREVIEWCBAREVIEWTea,Oneoftheworld

2、’sfavouritedrinks,1(invent)byaccident.Onedaywater2(boil)byShenNong.Sometealeavesfellintothewaterand3(remain)thereforsometime.Anicesmell4(produce)whenthetealeavesdroppedintothehotwater.Thewater5(drink)byShenNong.Ittastedgreat!Howwasteainvented?wasinventedwasboiledremainedwa

3、sproducedwasdrunk被动语态的谓语构成助动词be＋及物动词过去分词什么时候要用被动语态呢?am/is/are+及物动词过去分词was/were+及物动词过去分词含有情态动词的被动语态？含有情态动词的被动语态的谓语构成：+be+vt.p.p1Teenagersshould(allow)tochoosetheirclothes.2Ringsshouldnot(wear)byteenagers.3Shouldhomework(finish)byteenagersintime?4Whatshouldteenagers(encourag

4、e)todo?含有情态动词的被动语态情态动词beallowedbewornbefinishedbeencouraged被动语态的几种句型肯定句主语+be+过去分词+(by…)否定句主语+be+not+过去分词+(by…)一般疑问句情态动词+主语+be+过去分词+(by…)?特殊疑问句疑问词+be+主语+过去分词+(by…)?Teenagersshouldbeallowedtochoosetheirclothes.Ringsshouldnotbewornbyteenagers.Shouldhomeworkbefinishedbyteenage

5、rsintime?Whatshouldteenagersbeencouragedtodo?肯定句主语+情态动词+be+过去分词+(by…)否定句主语+情态动词+not+be+过去分词+(by...)一般疑问句Be+主语+过去分词+(by…)?特殊疑问句疑问词+情态动词+主语+be+过去分词+(by…)?.Hecannotfinishthework.(主动变被动)Thework____________by___.Youmustreturnthebookstohim.(主动变被动)Thebooks____________tohim.Maythe

6、ylikethecake?(主动变被动)Thecake____by____?Anotherbikecanbebought.(划线部分提问)_______?Weshouldcleanthetableeveryday.(主动变被动)Thetable_______________everyday.ExerciseRound11.Youmustreturnthebookstohimatonce.Thebooks______________tohimatonce.2.Hecannotfinishthework.Thework____________b

7、y___3.Weshouldcleanthetableeveryday.Thetable_______________everyday.4.MayTheylikethecake?Thecake______by____?5.Anotherbikecanbebought.(划线部分提问)__________?mustbereturnedcannotbefinishedhimshouldbecleanedbelikedthemMayExerciseRound1Whatcanbebought123451【2015广东】—Haveyouheardof

8、thesongLittleApple?—Yes.Itshould______everymorningwhenagedpeopledosquaredancingdownstairs