Unit 4 Wildlife protection学案

第四课时 Grammar

一、教学内容 现在进行时的被动语态

二、教学目标 在本节课结束时，学生能够

1.掌握现在进行时的被动语态的句型。

2.总结并熟练运用各种时态的被动语态。

三、教学步骤

步骤一 例句呈现

1. We are being killed for the wool beneath our stomachs.

2. Our fur is being used to make sweaters for people like you.

3. I wonder what is being done to help you.

4. Daisy turned around and found that she was being watched by an elephant.

5. So good things are being done here to save local wildlife.

步骤二 语法归纳

1. 现在进行时的被动语态

（1）肯定形式：am/is/are＋being＋过去分词

The house is being painted. 房子正在被粉刷。

（2）否定形式: am/is/are＋not＋being＋过去分词

The trees are not being watered.

（3）疑问形式: Am/Is/Are＋主语＋being＋过去分词？

Am I being watched over?

（4）特殊疑问句的形式: 把特殊疑问词放在一般疑问句前面。

How many bridges are being built in the village?

2. 现在进行时的被动语态基本用法：

①表示现在正在进行的被动动作。

　Mary is being interviewed now.

②表现阶段正在进行的被动动作。

　The disease is being studied at present by scientist.

③少数及物动词的进行时表示按计划、安排将要承受某个动作。