Question

表示过去的时间状语有哪些?

Answer 1

如下：

1、used to+动词原形，表过去经常但现在已不再维持的习惯动作。

He used to smoke.

他过去抽烟。

2、be/become/get used to+动名词doing，表习惯于。

He has got used to getting up early.

他已经习惯了早起。

3、过去进行时，表示过去某个时间点或某段时间内正在发生的动作。

The boy was doing his homework when his father came back from work.

男孩正在做他的家庭作业当他父亲下班回来。

4、主句（had done）, before + 过去时间状语。

He had finished his homework by 9 o'clock last night.

昨晚9点钟他就做完作业了。