一、过去进行时的被动语态的概念
表示过去某个时刻正在进行或者发生的被动性的动作。过去进行时的被动语态构成: was/were+being+done
*They were planting trees this time yesterday. (过去进行时的主动语态)
*Trees were being planted by them this time yesterday. (过去进行时的被动语态)
二、过去进行时的被动语态的基本结构
1. 过去进行时的被动语态的肯定式为: was/were+being+done。
*Computer was being majored by him during his college.
他在大学期间主修计算机专业。
*Another bridge was being built over the Yangtze River then. 那时长江上正在建造另一座大桥。
2. 过去进行时的被动语态的否定式为: was/were+not+being+done。
*The movie star wasn’t being stalked by a fan.
那个电影明星没有被影迷跟踪。
3. 过去进行时的被动语态的一般疑问句需将was/were提到主语的前面。(回答用yes或no)
*Was a new library being put up in their school just then?
他们学校当时正在建一座新图书馆吗?
4. 过去进行时的被动语态的特殊疑问句为: 疑问词+was/were(+主语)+being+ done?
*What was being done to the machine then?
那时正对这台机器采取什么措施?
