新教材九年级英语第六单元课件.ppt
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- 新教材 九年级 英语 第六 单元 课件
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1、When was it invented ? Section A 1a-2c(The Passive Voice).主动语态与被动语态主动语态与被动语态: 英语动词有两种语态英语动词有两种语态, ,即主动语态即主动语态(The Active (The Active Voice)Voice)与被动语态(与被动语态(The Passive Voice)The Passive Voice)。主动语态表示主语是动作的主动语态表示主语是动作的执行者执行者; ;被动语态表示主语是动作的被动语态表示主语是动作的承受者承受者。 e.g. 1.They make trains in Zhuzhou . Trai
2、ns are made in Zhuzhou. 2.The farmers grow cotton every year. Cotton is grown by the farmers every year. 主动语态主动语态被动语态被动语态主动语态主动语态被动语态被动语态 主动语态变被动语态的步骤:主动语态变被动语态的步骤:1 1、主动语态的宾语变为被动语态的主语;、主动语态的宾语变为被动语态的主语;2 2、主动句的谓语动词变为被动结构;、主动句的谓语动词变为被动结构;3 3、主动句的主语变为被动句的宾语,由、主动句的主语变为被动句的宾语,由by by 引引出,当不强调动作的执行者时,常省略
3、。出,当不强调动作的执行者时,常省略。4.4.其它成分不变。其它成分不变。主动语态变被动语态规则主动语态变被动语态规则 宾语提前变主语,宾语提前变主语, 原主变宾原主变宾by后见,后见, 记住时态不要变,记住时态不要变, 还有人称还有人称be关键。关键。 They play football on Sunday. Lucy does the homework in the evening. We make these machines in Beijing.Football is played by them on Sunday.The homework is done by Lucy in
4、the evening.These machines are made in Beijing.2).The key sentences: When was the car invented? It was invented in 1885. What are they used for?They are used for giving light.3).Language goal:Talk about the inventions. Let Ss learn about what they are used for. 1). New phrases:be invented be used fo
5、r the style of the shoesWhat are the Four Great Inventions in ancient China?Do you know?paper-making 造纸术造纸术compass 指南针指南针printing 印刷术印刷术 gunpowder 火火 药药paper makingpaper Cai Lun invented the paper making in 105 .invented the paper making in 105 .Cai LunThe paper makingby inventioninvent inventor Cai
6、 Lun in 105 was inventedWhen were they invented?They were invented in1879.light bulbs18791876188519271971 When was the car invented? It was invented in 1885.What are they used for?They are used for giving light.light bulbsseeing in the dark.microwave ovenIt is used for cooking and heating food(加热加热)
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