2019学年度人教版选修七Unit2 RobotsPeriod4 Grammar学案

教学目标

1.掌握各个时态的被动语态的结构与用法；

2.能够熟练运用被动语态解题造句。

一. 含义与构成

1. 被动语态表示句中的主语接受谓语动作，也就是说，主语是谓语动作的承受者。谓语动词用作被动语态的句子叫做被动句。

2. 构成：be + 过去分词 (be有时可用become 或get代替), be随着主语的人称、数、时态和语气的不同而变化。

3. 被动语态的各种时态形式有：

一般时态：be + 过去分词

现在 过去 将来 过去将来 is/ am/ are done was/ were done will/ shall be done would/ should be done English is spoken in many countries.

Romeo and Juliet was written by Shakespeare.

Many believe that one day the earth will be destroyed if people do not learn to live in peace.

进行时态：be + being + 过去分词

现在 过去 将来 过去将来 is/ am/ are

being done was/ were

being done will/ shall be

being done would/ should be being done His plan is being carried out successfully.

The new curtains were being hung when the visitors showed up.

The car will be being cleaned by my brother.

完成时态：have + been + 过去分词

现在 过去 将来 过去将来 have/ has been done had been done will/ shall have been done would/ should have been done I've been robbed.

The outcome of the election was announced before all of the votes had been counted.

Everything will have been done by the end of this month.

二. 用法