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九年级英语When was it invented课件3

发布时间:2014-01-28 10:57:39  

car

Let’s look and talk

light bulb
When was it invented? It was invented in 1879 1885

Who was it invented by ? It was invented by Edison . . Karl.Benz

Karl.Benz.
Edison

pairwork
Beld Bell

1876 1927
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1971 1976

Fen.Noyma

Kelif
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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
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将下列句子由主动句变为被动句或 由被动句变为主动句:

1)Zheng Jie invented this special pen.变被动 句 This special pen was invented Zheng Jie. 2)The bike was fixed up by Jimmy. 变主动句 Jimmy fixed up the bike

3) People use sunglasses to protect their eyes Sunglasses are used (by people) to protect ey Students are allowed (by teachers) to put up

4) Teachers allow students to put up hands in cla

HOMEWORK Good bye

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