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Unit 9 When was it invented?,the first period,阿克陶县实验中学 李松全,It was invented in 1879,Who was it invented by ?,It was invented by Edison.,Edison,light bulb,When was it invented?,Lets look and talk,car,When was it invented?,It was invented in 1885,Who was it invented by ?,It was invented by Karl.Benz.,Karl.Benz.,1876,Bell,pairwork,1927,Beld,1976,Fen.Noyma,1971,Kelif,Grammar Focus,被动语态 (the Passive Voice) 英语根据其谓语动词与主语的关系分为两种语态即主动语态(The Active Voice)和被动语态(the PassiveVoice).主动语态表示主语是动作执行者,被动语态表示主语是动作的承受者。被动语态结构； be + 动词的过去分词Be 体现时态， Be的不同形式就体现不同的时态，如：,am/are /is +动词的过去分词 ,体现一般现在时的被动语态,was/were +动词的过去分词 ,体现一般过去时的被动语态,主动句与被动句之间的转换 We bought some books.主语 + 谓语动词过去式的主动语态 + 宾语Some books were bought ( by us ) 主语 +谓语动词过去式的被动语态 + 介词+ 宾语,将下列句子由主动句变为被动句或由被动句变为主动句：,Zheng Jie invented this special pen.变被动句,2)The bike was fixed up by Jimmy. 变主动句,3) People use sunglasses to protect their eyes.,4) Teachers allow students to put up hands in class.,This special pen was invented Zheng Jie.,Jimmy fixed up the bike,Sunglasses are used (by people) to protect eyes.,Students are allowed (by teachers) to put up hands in class.,Good bye,A: When was the _ invented?B: I think it was invented in _.,Pairwork (1c:P68),1976,1885,1971,1927,1876,A: What is
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