4、变为被动语态的主语。(2)把谓语变成被动结构(be+过去分词)(根据被动语态句子里的主语的人称和数,以及原来主动语态句子中动词的时态来决定be的形式)。(3)把主动语态中的主语放在介词by之后作宾语,将主格改为宾格。例如:All the people laughed at him.→He was laughed at by all people.They make the bikes in the factory.→The bikes are madeby themin the factory.歌诀是:宾变主,主变宾,by短语后面跟。谓语动词变被动,be后“过分”来使用。1()1T