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高考网汇集整理《高一英语必修：语法复习提纲(3)》 语法复习提纲(3) 二. 各种时态的被动语态 被动语态概述 被动语态的概念：它是动词的一种形式，表示主语与谓语之间的执行或被执行关系。主动语态表示主语是谓语动作的执行者，例如：They saw thelittle boy crying by the river. 被动语态表示主语是谓语动作的承受者，例如：The little boy was seencrying by the river. 被动语态的构成 被动语态的形式是由“助动词be+动词的过去分词”构成。助动词be随着主语的人称、数、时态等的不同而变化。几种常见时态的被动语态形式如下： 1. 一般现在时 am/is/are + 过去分词 例如：Rice is planted in the south of China. 2. 一般过去时 was/were + 过去分词 例如：These trees were planted the year before last. 3. 一般将来时 will/shall + be + 过去分词 例如：A sports meeting will be held next week in our school. 4. 现在进行时 am/is/are + being + 过去分词 例如：Your radio is being repaired now. 5. 过去进行时 was/were + being + 过去分词 When he got there，the problem was being discussed. (责任编辑：admin) |