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师梦圆初中英语教材同步人教版九年级全一册Section B 3a—3b Self check下载详情
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教学难点:一些被动语态的特殊情况。

课前准备:老师:课件

学生:搜集关于被动语态的复习资料。

Step1、Explanation

一、被动语态的概念和基本结构

英语动词有两种语态:主动语态和被动语态。当我们不知道谁是动作的执行者 或者只需强调动作的承受者时,要用被动语态。

被动语态结构:be + 过去分词(PP) + (by …)

Eg: Many people speak English. (主语是动作的执行者)

English is spoken by many people.(主语是动作的承受着)

二、被动语态的各种结构

1. 一般现在时:am/is/are + pp

(1)People play football all over the world.

Football is played all over the world by people.

(2)Mr. Green teaches us this term.

We are taught by Mr. Green this term.

(3).More and more people speak English in China.

English is spoken (by more and more people) in China.

2.一般过去时:was (were) + pp

(4). People built the Great Wall long ago.

The Great Wall was built (by people) long ago.

(5). Two years ago we used the machines to make shoes for children.

Two years ago those machines were used by us to make shoes for children.

3.一般将来时:will (shall) /be going to + be + pp

(6). We will write a diary next class.

A diary will be written (by us) next class.

(7). Tom is going to hold a birthday party

A birthday party is going to be held by Tom.

4.情态动词的被动语态:will (shall) /be going to + be + pp

(8). You must throw the broken pottery away at once.

The broken pottery must be thrown away (by you) at once.

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