英语语法—passive 被动语态

一、什么时候用被动语态

1.don't know who is doing the action.

2.don't care who dose the action.

3.委婉的说法

二、被动语态的构成

1.subject + is / was / will be / have or has been +pp +其他

① my hair is cut.

my hair is cut by Tonny.(如果想强调人的话可以用by xx)

② The cookies were eaten.

③ You article was read but I think you still need to rewrite it again.(比较委婉的说法)

I read you article but I think you still need to rewrite it again.(直接的书法，容易伤人)