【过去正在进行时的标志词】在英语语法中，过去进行时（Past Continuous Tense）用于描述在过去某一特定时间或时间段内正在发生的事情。它通常与表示时间的状语连用，以帮助明确动作发生的背景和时间点。以下是常见的过去进行时标志词总结。
一、
过去进行时的标志词主要用于说明动作发生的“时间点”或“时间段”。这些词可以帮助我们判断某个动作是否在过去的某个时刻正在进行。常见的标志词包括：
- at that time：在那时
- at this time yesterday：在昨天这个时候
- at 8 o'clock last night：在昨晚8点
- when I called him：当我给他打电话时
- while I was cooking：当我做饭的时候
- during the meeting：在会议期间
- all day yesterday：昨天一整天
- from 9 to 11 last night：从昨晚9点到11点
- the whole afternoon：整个下午
- just then：就在那时
这些时间状语能够帮助我们在句子中准确表达“过去某段时间正在发生”的含义。需要注意的是，过去进行时通常与另一个过去时态（如一般过去时）搭配使用，以表示两个动作同时发生或一个动作发生在另一个动作进行的过程中。
二、表格展示
| 标志词 | 中文意思 | 示例句子 |
| at that time | 在那时 | At that time, I was studying. |
| at this time yesterday | 在昨天这个时候 | At this time yesterday, she was working. |
| at 8 o'clock last night | 在昨晚8点 | At 8 o'clock last night, they were watching a movie. |
| when I called him | 当我给他打电话时 | When I called him, he was taking a shower. |
| while I was cooking | 当我做饭的时候 | While I was cooking, the phone rang. |
| during the meeting | 在会议期间 | During the meeting, the boss was giving a speech. |
| all day yesterday | 昨天一整天 | I was tired all day yesterday. |
| from 9 to 11 last night | 从昨晚9点到11点 | She was sleeping from 9 to 11 last night. |
| the whole afternoon | 整个下午 | We were playing football the whole afternoon. |
| just then | 就在那时 | Just then, the door opened. |
通过掌握这些标志词，我们可以更准确地理解和使用过去进行时，使语言表达更加自然和清晰。
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