Part Ⅱ Grammar 被动语态
英语动词有两种语态,即主动语态(The Active Voice)和被动语态(The Passive Voice)。主动语态表示主语是动作的执行者;被动语态表示主语是动作的承受者。主动语态和被动语态可以相互转换,但是句子意思没有发生变化。例如: They have put forward an agreement.(主动) →An agreement has been put forward.(被动)
语法精析