Unit9Whenwasitinvented?SectionA主动语态与被动语态：英语动词有两种语态,即主动语态(TheActiveVoice)与被动语态（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e.g.1.TheymaketrainsinZhuzhou.主动语态TrainsaremadeinZhuzhou.被动语态2.Thefarmersgrowcottoneveryyear.主动语态Cottonisgrownbythefarmerseveryyear.被动语态一：被动语态的构成:助动词be+(及物动词的)过去分词am(is,are)+done一般现在时was(were)+done一般过去时二:主动语态变为被动语态的步骤:1.把原主动句中的宾语转换为被动语态的主语.2.把动词改为被动形式,即“be+过去分词”.注意be动词要按新的主语的人称和数进行变化,时态要和原来的主动语态的时态保持一致.3.原来主动语态句中的主语,如果需要,就放在by后面以它的宾格形式出现.如果没有必要就可以省略.其他的成分(定语,状语)不变,句式也不能变.主动语态变被动语态的结构图:Bellinventedthetelephonein1876.主语谓语动词过去时宾语时间状语ThetelephonewasinventedbyBellin1876主语谓语动词的过去分词宾语时间状语三：被动语态的特殊用法:（一）：双宾语buy/makesbsth=buy/makesthforsbgivesbsth=givesthtosb1.Myfatherboughtmeacomputer.Acomputerwasboughtformebymyfather.Iwasboughtacomputerbymyfather.2.Hegivesmeabook.Abookisgiventomebyhim.三让let.have.make四看watch.see.lookat.noticeeg.Weoftenseehimplaybasketball.Heisoftenseentoplaybasketballbyus.（三）、注意动词短语的完整性Thebabyistakengoodcareofbythenurse（四）、无被动语态的动词。takeplacehappencomeoutcometruediebelongto课堂练习;一：用所给的词的适当形式填空。1.Whatdoyouthinkisthemost___________(help)invention?2.Edisonwasagreat________(invent).Hehad1,093_______(invent)inhislife.3.Lightareusedfor__________(see)thingsinthedark.4.Personalcomputers___________(invent)in1976.5.Whichlanguage________themostwidely_________(speak)intheworld?6.Whenwasthec_________invented?7.Pleaseputtheusedb____________intothebox.8.Herearetheshoeswitha___________heels.二：用所给动词的正确形式填空：1)Thebike__________(fix)upbyXiaoMingyesterday.2)Sunglasses__________(use)forprotectingpeople’seyes.3)Apicture_________(put)upontheblackboard.4)French___________(speak)inFrance.5)Teenagersshould_________(allow)tochoosetheirownclothes.三：句型转换1.Peopleallovertheworldenjoysurfing.(同义句转换)Surfing____________bypeopleallovertheworld.2.Whenhewasthirty,TomdecidedtomovetoLondon.(同义句转换）Atthe______ofthirty,Tommadea__________tomovetoLondon.3.Katetookgoodcareofthebabyyesterdayevening.(改为被动句）Thebaby_______________________________byKateyesterdayevening.4.Shewasseentocomeoutofthelibrarybyhim.(改为主动句)He__________________outofthelibrary.5.TheLeaguewasfoundedinGuangzhouin1922.(对画线部分提问)________________________theLeague__________?6.Hedidn’tgotobedbeforehefinishedhiswork.(同义句转换)He______gotobed______hefinishedhiswork.7.Theyareusedforseeinginthedark.(对画线部分提问)______aretheyused______?8.Itwasinventedin1888.(对画线部分提问)______wasit_________?反思与收获：—————————————————————————————————————————————————————————————————————————
