过去进行时（Past Continuous Tense）
过去进行时的功能
过去的连续描述了此前一段时间内的行动或事件。这些行动或事件始于过去，并且在发言时仍在继续。换句话说，它表达了过去未完成或不完整的行动。
它用于：
- 通常，用过去时态描述故事中的背景。例如：
“The sun was shining and the birds were singing as the elephant came out of the jungle. The other animals were relaxing in the shade of the trees, but the elephant moved very quickly. She was looking for her baby, and she didn’t notice the hunter who was watching her through his binoculars. When the shot rang out, she was running towards the river…” - 描述被另一事件或动作打断的未完成动作。例如：
“I was having a beautiful dream when the alarm clock rang.” - 表达改变主意。例如：
“I was going to spend the day at the beach but I’ve decided to get my homework done instead.” - 与单词”wonder“连用，是提出要求时使用的敬语。例如：
“I was wondering if you could baby-sit for me tonight.”EXAMPLES
They were waiting for the bus when the accident happened.
Caroline was skiing when she broke her leg.
When we arrived he was having a bath.
When the fire started I was watching television.
过去进行时的构成
过去进行时的构成包含两个部分：be动词的过去式（was、were），以及主动词的ing形式。
| Subject | was/were | verb + ing |
|---|---|---|
| They | were | watching |
| 肯定句 | ||
| She | was | reading |
| 否定句 | ||
| She | wasn’t | reading |
| 疑问句 | ||
| Was | she | reading? |
| 否定疑问句 | ||
| wasn’t | she | reading? |
用play的过去进行时造句。
| 肯定句 | 否定句 | 疑问句 |
|---|---|---|
| I was playing | I was not playing | Was I playing? |
| You were playing | You were not playing | Were you playing? |
| He was playing | He wasn’t playing | Was he playing? |
| We were playing | We weren’t playing | Were we playing? |
| They were playing | They weren’t playing | Were they playing? |
不用于进行时的词
| 知觉 | 看法 | 心理状态 |
|---|---|---|
| feel* | assume | forget |
| hear | believe | imagine |
| see* | consider | know |
| smell | doubt | mean |
| taste | feel | notice |
| find | recognise | |
| think* | remember | |
| understand | ||
| 情绪/欲望 | 度量衡 | 其他 |
| envy | contain | look |
| fear | cost | seem |
| dislike | hold | be (在多数情况下) |
| hate | measure | have (作“拥有”解释时) |
| love | weigh | |
| prefer | ||
| wish | ||
| want |
When, While, as
这三个词，均有“当 … 的时候”的意思。
- When和as既可以指某一时间点，也可以指一段时间；While则指一段时间。
因此，短暂性动词只能用When和as，而不能用while。
When/As he woke up, it was 8 o'clock.
While I was waiting for a bus, I met her. - When引导的从句的谓语动作，可以在主谓语动作之前、之后或同时发生；While和as引导的从句的谓语动作，必须和主谓语动作同时发生。
When he finished his homework, he played the game for a while. 他在完成作业之后玩游戏
When I go to the museum, the door was closed. 在我到达之前，就已经关门了
While I was sleeping, the telephone rang. 我睡觉的同时，电话铃响了 - 当主语、从句同时发生，且从句动作为延续性动作时，三者皆可使用。
When/While/As she was makeing a phone call, I was writing a Email. - 强调两个动作同时进行，常用“过去进行时 + while + 过去进行时”结构。
They were rowing boats while we were climbing the hill. - 强调某个动作发生时，另一个动作正在进行，常用“一般过去时 + while + 过去进行时”结构。
It began to rain heavily while we were having dinner. - 强调某个动作正在进行时，另一个动作突然发生，常用“过去进行时 + when + 一般过去时”结构。
I was walking in the street when he called me. - 当主句、从句同时发生，且从句时间淡化，作“一边…一边”解时，只能用as。
I woke up as the sun was rising.