情态动词的被动语态

情态动词的被动语态

教学设计

一、教学目标

1. 了解情态动词的被动语态结构

2. 掌握情态动词的被动语态的变换方法

二、教学准备

多媒体，微课软件，纸和笔

三、教学步骤

1.通过例句学习变换方法

Ann can take good care of the cats ．

The cats can be taken good care of by Ann.

2. 总结结构：

S+ can/must/should等情态动词+ be+过去分词

3.练习题

① You must clean your bedroom every day.

② Parents should encourage teenagers to do social work.

③ Can Lucy do her homework tomorrow instead?

4.更多练习

I. 用括号内所给单词的适当形式填空。

1.How many magazines ____(can borrow) in your library every week?

2.In many countries, teenagers under 18 ____(should not allow) to go into Internet bars.

3.Some people think trees ____(should plant) on Tree planting Day only.

4.The flowers ____(must water) every day.

5.A dictionary ____(can use) in the exam.

II.同义句转换，每空一词。

1.Students should clean their classroom every day.

Their classroom ____ _____ ____ every day.

2.Can you mend this radio?

____ this radio ____ ____?

3.We should not allow fifteen-year-olds to work at night.

Fifteen-year-olds ____ ____ ____ to work at night.