《Unit 9 When was it invented Section A 3a-4》
一．学习目标
1、.单词及词组，2、Discuss the opinions on the inventions，3、能用目标语言进行对话，4、进一步掌握被动语态，5、主动语态与被动语态的互换。
重难点：1、 The listening practice with the target language.2.Make communications with the target language.3、被动语态的掌握4、主动语态与被动语态的互换。
二. 知识链接
---A: What do you think is the best way to learn English.
---B: I think the best way to learn English is to use English.
2.翻译单词及词组。
Bulb
light bulb
microwave
microwave oven
island
五．合作探究
. 1．仿写句子
Model1：.Many people speak English in China.（主动语态）
English is spoken by many people in China. （被动语态）
1).The girls often sing the English songs after class.
___________________________________________
2) He often helps his brother.
___________________________________________
Model 2.
Bell invented the telephone in 1876.
The telephone was invented by Bell in 1876.
1).We played football yesterday.
_________________________________________
2). Sheng Nong invented tea by mistake.
_________________________________________
Model 3
We must look afer the old man.
The old man must be looked after (by us).
1) You must finish your homework on time.
__________________________________________
2) We should help disabled people.
__________________________________________
2.归纳生成。
英语中动词的语态分成两种：________和________。当句子的主语是动作的执行者时，谓语的形式叫________；当
句子的主语是动作的承受者时，谓语要用________。
1. 被动语态
谓语动词的语态表示句子的主语和谓语动作之间的关系：
1）当句子的主语是谓语动作的执行者时，主、谓之间的关系称为________；
2）当句子的主语是谓语动作的承受者时，主、谓之间的关系称为________。
主动语态变为被动语态