牛津译林版8bunit7被动语态讲解与练习(共5页).doc

8B被动语态讲解与练习一、概念：表示动作与主语之间是被动关系的句子是被动语态。二、主动语态与被动语态之间如何转换。主动语态变为被动语态口诀: 主变宾，宾变主，谓语变be done ,时不变,“be”要随着主语变.三、各种时态的被动语态的构成1.一般现在时：主语+be（is/am/are）+过去分词done+其它把下列句子改为被动语态 People use knives for cutting things._ They produce silk in Suzhou and Hangzhou._ They speak English in Canada._