过去进行时

表示过去某一时刻或某一段时间正在进行的动作，由 was/were + 现在分词构成，常作为一般过去时动作的背景。

一、核心规则

1. 过去某时正在进行：常与 at that time, this time yesterday, at 7 last night, from 7 to 11 last night, when/while 从句连用。
2. 过去某阶段持续进行：如 He was writing a book about grammar last year.（不知是否写完）。
3. 与 always, forever, continually 连用表感情色彩：如 My brother was always losing his keys.
4. 表委婉客气：wonder, hope, think, want 等的过去进行时使语气更委婉，如 I was hoping you would give me a chance.
5. 过去进行时表过去将来：多用于宾语从句或安排，如 He said his brother was leaving for Japan tomorrow.
6. 与一般过去时的分工：过去进行时表”正在进行、未完成”，一般过去时表”已完成、已结束”；rain, snow, cough, wear, feel, work 等少数动词两者差别不大。

二、结构与公式

• 肯定：was/were + 现在分词。
• 否定：was/were + not + 现在分词。
• 疑问：Was/Were + 主语 + 现在分词?
• 经典搭配：主语 + was/were doing + when + 主语 + did（长动作被打断）。

三、典型例句

1. What were you doing this time yesterday?（你昨天这个时候在干什么？）——过去某时刻正在进行。
2. Granny fell asleep when she was reading.（奶奶看书时睡着了。）——长动作被短动作打断。
3. He was working from 7 to 11 last night.（昨晚他从七点一直工作到十一点。）——过去一段时间持续。
4. The boy was continually asking the same question.（这个男孩子老是问同一个问题。）——厌烦的感情色彩。
5. We were wondering if you would stay with us for lunch.（不知你能否留下来和我们一起吃午饭。）——委婉语气。
6. It snowed / was snowing all day yesterday.（昨天下了一天的雪。）——少数动词两种时态均可。

四、易错点

1. ✗ When I arrived, he cooked dinner. → ✓ When I arrived, he was cooking dinner. 强调”到达时正在做”要用过去进行时（若强调已完成则用一般过去时 had cooked/ cooked）。
2. ✗ While I was doing my homework, the light was going out. → ✓ While I was doing my homework, the light went out. while 从句用进行时作背景，主句瞬间动作用一般过去时。
3. ✗ I was reading the newspaper last night.（想表达”已经看完”）→ ✓ I read the newspaper last night. 过去进行时不表示动作完成。
4. ✗ He was knowing the truth then. → ✓ He knew the truth then. 表状态的 know 不用进行时。

五、高考考点

1. when 与 while 搭配：when 后常接一般过去时（打断），while 后常接过去进行时（持续背景），二者组合是高频句式。
2. 语境推断：无明确时间状语时，靠对话或上下文判断”当时正在做”，如 —What were you doing when he came? —I had just finished my homework and was leaving.
3. 与一般过去时同时出现：短文改错常把该用进行时的地方写成一般过去时，需看是否有”打断、同时、背景”意味。
4. 写作升级：叙事文用过去进行时铺陈场景（The rain was falling and the wind was howling），再用一般过去时推进情节，画面感更强。

六、对比与延伸

• 时态辨析：一般过去时、现在进行时、将来进行时、现在完成进行时。
• 时间关系：过去完成时、过去将来时、时态一致。
• 语态结合：被动语态（was/were being + 过去分词）。
• 从句连词：状语从句、定语从句。
• 上位总览：动词时态总览。

七、来源

• 语法体系/英语语法网专栏/动词时态/04301-英语动词时态用法归纳：过去进行时.md
• 语法体系/英语语法网专栏/动词时态/00326-过去进行时的用法.md
• 语法体系/英语语法网专栏/动词时态/01699-过去进行时与一般过去时的区别.md
• 语法体系/英语语法网专栏/动词时态/03397-谈谈过去进行时的理解与用法.md