必修1《Grammar Summary》PPT课件优质课下载

必修1《Grammar Summary》PPT课件优质课下载

Example:

Many people speak English .(主动语态)

English is spoken by many people.(被动语态)

构成：被动语态的句子是以be+Ved 的形式来表达，如果要特别强调动作或行为的执行者时，句子后面需接by~,译为“被(由)……”

句型:

1.肯定句：主语+be+Ved+(by~)

2.否定句：主语+be + not+过去分词+(by~)

3.一般疑问句：Be+主语+过去分词+(by~)?

4.特殊疑问句:疑问词+be+主语+过去分词+(by~)?

被动语态的时态是由be的时态决定的,be动词是什么时态，全句就是什么时态，be动词后面的过去分词不变。

被动语态的十种时态：

1.现在 am (is,are)done ;

am (is,are)being done;

has (have)been done

2.过去was (were)done ;

was (were) being done;

had been done

3.将来 will be done ; will have been done

4.过去将来would be done would have been done

一般现在时：

History is made by the people .

一般过去时：

These new cars were made in Tianjing in 1994.

一般将来时：

Li Ming will be asked to attend the lecture .