查字典中考网整理了关于2020年中考英语知识点之主动语态变被动语态的基本方法，希望对同学们有所帮助，仅供参考。
将主动语态的宾语变为被动语态的主语，将主动谓语变为被动谓语(be+过去分词)，将主动语态的主语变为by短语(在被动句中用作状语)：He stole our money.Our money was stolen by him.
【注】
(1)若不强调动词执行者，被动语态中的by短语通常可以省略：
The house was built in 1978.
这座房子是1978年建的。
(2) 在转变语态时，要注意保持两种语态时态的一致性：
The students will study the problem.
The problem will be studied by the students.
A friend of ours is repairing the roof.
The roof is being repaired by a friend of ours.