什么情况下需要/可以使用被动语态?
1) 动作实施者很明显/不知道是谁,没必要提到
The streets are swept every day.
The library was built in 1890.
2) 当动作的实施者泛指人们:acknowledge, assume, believe, claim, consider, estimate, feel, find, know, presume, report, think, say等
He was suspected of receiving stolen goods.
3) 主动句的主语是不定代词one, you, they时,通常被动
This kind of advertisement is seen everywhere.
4) 在主从句中,使用被动语态可以避免改变句子主语
When their mother was ill, neighbors looked after the children.
When their mother was ill, the children were looked after by neighbors.
5) get/have sth done
We had all our money stolen while we were on holiday.
以上这些……………………其实……
都!不!重!要!
重要的是,你会写成什么?你会犯哪些错误?你怎么样才能避免这些错误?