精选优质文档-倾情为你奉上高中英语被动语态讲解一、被动语态的构成形式1. 被动语态的基本时态变化2. 被动语态的特殊结构形式1)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.2) 有些动词可以有两个宾语，在用于被动结构时，可以把主动结构中的一个宾语变为主语， 另一宾语仍然保留在谓语后面。通常变为主语的是间接宾语。例His mother gave him a present for his birthday. 可改为 He was given a present by his mother for his birthday.3) 当“动词+宾语+宾语补足语”结构变为被动语态时，将宾语变为被动结构中的主语，其余不动。例Someone caught the boy smoking a cigarette. 可改为The boy was caught smoking a cigarette.4）在使役动词
