被動語態的常見句型
1.主語（受動者） ＋ be ＋ 過去分詞 ＋ （by ＋ 施動者）.例如：
He was scolded by his parents.
2.主語 ＋ get ＋ 過去分詞 ＋ 其它成分.例如：
The boy got drowned last summer.
She got fired because of her faults.
註意 使用這種結構時壹般不能帶有“by ＋ 施動者”
3.情態動詞 ＋ be ＋ 過去分詞.例如：
This problem must be worked out in half an hour.
The baby should be taken good care of by the baby?鄄sitter.
4.帶有雙賓語（直接賓語和間接賓語）的主動句變為被動句,其主語可以是直接賓語,也可以是間接賓語.例如：
She lent me a bike.
被動：1） I was lent a bike (by her).
2） A bike was lent to me (by her).
5.當“動詞 + 賓語 + 賓語補足語”結構變為被動語態時,將賓語變為被動結構中的主語,其余部分不動.例如：
Someone caught the boy smoking a cigarette.
被動：The boy was caught smoking a cigarette.
6.在使役動詞have,make,get以及感官動詞see,watch,notice,hear,feel,observe等後面加不定式作賓語補語時,在主動結構中不定式to要省略,但變為被動結構時,要加to.例如：
Someone saw a stranger walk into the building.
被動：A stranger was seen to walk into the building.
7.如果賓語是that 從句,變為被動結構時壹般用it作被動句的形式主語.例如：
They know that he is an expert.
被動：It is known that he is an expert./ He is known to be an expert.