高中英语语法大全动词的语态

高中英语语法大全动词的语态

一.概念：

动词的语态是动词的一种形式,表示主语和谓语之间语法或语义的关系.英语的语态有两种：主动语态和被动语态.主动语态用于主动句,表示主语是动作的执行者.被动语态用于被动句,表示主语是动作的承受者.主动语态的构成方式与动词时态相同,而被动语态由助动词be+过去分词构成,有人称,数,时态的变化.

相关知识点精讲

1. let 的用法

1）当let后只有一个单音节动词，变被动语态时，可用不带to 的不定式。例如：

They let the strange go.他们放陌生人走了。

---> The strange was let go.

2）当let 后宾补较长时，let 通常不用被动语态，而用allow或permit 代替。例如：

The nurse let me go to see my classmate in the hospital. 那护士让我去探望住院的同学。

----> I was allowed / permitted to see my classmate in the hospital.

2.短语动词的被动语态

短语动词是一个整体，不可丢掉后面的介词或副词。例如：

My sister will be taken care of by Grandma. 我妹妹由奶奶照顾。

Such a thing has never been heard of before. 这样的事闻所未闻。

3. 表示"据说"或"相信" 的词组，基本上由believe, consider, declare, expect, feel , report, say, see, suppose, think, understand等组成。例如：

It is said that…据说

It is reported that… 据报道

It is believed that…大家相信

It is hoped that…大家希望

It is well known that… 众所周知

It is thought that…大家认为

It is suggested that…据建议

It i s taken granted that…被视为当然

It has been decided that… 大家决定

It must be remember that… 务必记住的是