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初中被动语态的特殊结构形式
特殊形式考的很多，除了昨天的不同时态的被动语态，现在的特殊形式也是另一个考点
一 带情态动词的被动结构。其形式为：情态动词＋be＋过去分词。
例The baby should be taken good care of by the baby-sitter.
二 特殊句型的被动语态：
⑴含有使役动词（make /let /have）或感官动词（hear ,see, listen to ,look at ,find ,watch, feel等）的句子，在主动语态中这些词后常跟不带to的动词不定式，但是在改成被动语态时，则一定要把省去的to再加上去，另外help这一个词在主动语态中后面的动词不定式可以带to,也可不带to, 但在被动语态中也必
须把to加上去。
例：①Mother often makes me do some housework.
→I am often made to do some housework by mother.
②We saw him run into the classroom. →He was seen to run into the classroom by us.
⑵teach ,give ,pass ,show ,buy, tell等动词常常带有两个宾语（双宾语：直接宾语和间接宾语），改为被动语态时，两个宾语可以选其中任一个作主语。如果直接宾语被提前作主语，那么间接宾语（一般是人）前要加相应的介词to/for。
例：①Ｓhe gave me a pen.= She gave a pen to me.
→I was given a pen by her. →A pen was given to me by her.
②My father bought me a new bike.= My father bought a new bike for me.
→I was bought a new bike by my father. →A new bike was bought for me by my father. ⑶由不及物动词（vi）+介词/副词＋宾语的句子改成被动语态时，介词或副词不能丢掉。(前面已举过两例)
例：①Ｗe should speak to old people politely. →Old people should be spoken to politely ( by us).
②He took away the box..
→The box was taken away by him.
⑷含有宾语补足语的句子改为变动语态。（宾补
放在原来位置不变）
例：①We call him Xiao Ma. 主 谓 宾 宾补
→Ｈe is called Xiao Ma by us. ②He found the book very interesting. →The book was found very interesting by him.
三、 It is said that+从句及其他类似句型
一些表示“据说”或“相信”的动词如believe, consider, expect, report, say, suppose, think等可以用于句型“It＋be＋过去分词＋that从句”或“主语＋be＋过去分词＋to do sth.”。有：
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