摘要:含有情态动词的被动语态 情态动词的被动语态结构为:情态动词+be+过去分词,其时态及句型的变化仅由情态动词完成."be+过去分词"部分不变.如: Tables can be made of stone.桌子可由石头制造. Tables could be made of stone at that time.那时桌子可由石头制造. Can tables be made of stone? 桌子能用石头制造吗? 三.被动语态的用法: 1.不知道或没有必要指出谁是动作的执行者时. The bridge was built last year.这座桥是去年建造的. He was elected chairman.他被选为主席. 2. 当更加强调动作的承受者时.此时动作的执行者由by引导置于谓语动词之后.不需要时可以省略. The room hasn't been cleaned yet.房间还没有打扫. The tiger was killed by him.老虎被他杀死了. 3.当动作的执行者不是人时.多用被动语态.如: The window was blown by wind.窗户被风吹开了. The whole village has been washed away by the flood.整个村庄都被洪水冲走了. 4.表示客观的说明常用"It is + 过去分词."句型. It is said that Lucy has gone abroad.据说露茜已经出国了. It is believed that he is a spy. (=He is believed to be a spy.)大家相信他是个间谍. 其它常见的"It is + 过去分词+ that"句型还有 It is reported that-据报道 It is said that-据说 It is believed that-大家相信 It is suggested that-有人建议

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