2017中考英语语法复习：过去进行时
2016-10-20 09:45:07中考网编辑
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4.过去进行时
概念: 表示过去某一时刻或某一段时间正在进行的动作. 这一特定的过去时间除了有上下文暗示外,一般用时间状语来表示.
如: 1) ---What were you doing?
---I was jumping.
2) ---What was the boy doing when the UFO arrived?
---He was sleeping.
构成: 主语 + 助动词be(was/were) + 动词-ing形式构成.
