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人教版初中英语九年级第六单元语法
被动语态(二)
一般过去时的被动语态
一般过去时的被动语态是由“was/were＋动词的过去分词”构成。如：
①He invented the telephone in 1876.
→The telephone was invented (by him) in 1876.
②Sam didn't find the book when he came into the room.
→The book wasn't found by Sam when he came into the room.
③They agreed on the building of a new car factory last month.
→The building of a new car factory was agreed by them last month.
④The students didn't forget his lessons easily.
→His lessons were not forgotten by the students easily.
【注意】(1)用直接宾语作被动语态的主语时，通常要在间接宾语前加上适当的介词。如：
①He sent me a photo yesterday.
→A photo was sent to me (by him) yesterday.
②Her father bought her a nice hat.
→A nice hat was bought for her (by her father)．
(2)某些动词，如：let, see, make, hear, watch, notice等在主动结构中作谓语，后可接不带to的动词不定式作为宾语补足语。但在变为被动语态时，省略的动词不定式符号to要还原。如：
①I saw him run out of the classroom.
→He was seen to run out of the classroom (by me)．
②The man often makes his son do exercise.
→His son is often made to do exercise (by the man)．
(3)某些不及物动词与介词或副词搭配构成动词短语，如：look after, take care of, cut down, laugh at, talk about, turn on, listen to, put off等后可接宾语，但变被动语态时应把动词短语看作一个整体，短语中的介词或副词不可省略。如：
①She always looks after the little girl.
→The little girl is always looked after (by her)．
②All the students listen to the teacher carefully in class.
→The teacher is listened to carefully in class (by all the students)．
