语法点:过去进行时 (Past Continuous)
过去进行时表示过去某个时刻正在进行的动作,常用来给另一个动作提供"背景":当一件事正在进行时(进行时),另一件事突然发生了(一般过去时)。本课讲公交车司机 Roy 抓小偷的故事:他"正开车"时看见小偷跑出来,小偷"正要逃走"时他撞了上去,破车"正开走"时他打电话报警。这种"背景动作 + 突发动作"的搭配是过去进行时最常见的用法,多与 when、while、as 连用。
结构
| 形式 | 结构 | 例句 |
|---|---|---|
| 肯定 | 主语 + was / were + 动词-ing | He was driving along Catford Street. |
| 否定 | 主语 + was / were + not + 动词-ing | He was not driving fast. |
| 一般疑问 | Was / Were + 主语 + 动词-ing? | Was he driving a bus? |
| 与从句搭配 | When / While / As + 过去进行时, 一般过去时 | As the thieves were trying to get away, Roy drove his bus into the back of it. |
- when + 一般过去时(短动作),主句过去进行时:He was driving when he saw two thieves.
- while / as + 过去进行时(长动作),主句一般过去时:While the car was moving away, Roy stopped his bus.
课文中的例句
- [句 4] When he was driving along Catford Street recently, he saw two thieves rush out of a shop and run towards a waiting car. — was driving 是背景动作,saw 是突然发生的动作
- [句 5] One of them was carrying a bag full of money. — 描写当时正在进行的状态:一个小偷正提着钱袋
- [句 8] As the thieves were trying to get away in their car, Roy drove his bus into the back of it. — as + 过去进行时表示"正当……时",主句用一般过去时
- [句 9] While the battered car was moving away, Roy stopped his bus and telephoned the police. — while + 过去进行时,主句两个并列的一般过去时动作
- [句 3] He is finding his new work far more exciting. — 对比:现在进行时,表示"现阶段正觉得"
补充例句
- When I saw Roy, he was driving his bus. 我看见 Roy 的时候,他正在开公交车。
- While the thieves were running towards the car, Roy acted quickly. 小偷正朝汽车跑的时候,Roy 迅速采取了行动。
- What were you doing at eight o'clock last night? 昨晚八点你在干什么?
易错点
- ❌ When he drove along Catford Street, he saw two thieves rush out of a shop. → ✅ When he was driving along Catford Street, he saw two thieves rush out of a shop. "正在开车"是背景动作,要用过去进行时。
- ❌ As the thieves were trying to get away, Roy was driving his bus into the back of it. → ✅ As the thieves were trying to get away, Roy drove his bus into the back of it. 突然发生的短动作用一般过去时,不用进行时。
- ❌ One of them were carrying a bag full of money. → ✅ One of them was carrying a bag full of money. 主语是 one,be 动词用 was。
- ❌ While the car moving away, Roy stopped his bus. → ✅ While the car was moving away, Roy stopped his bus. 过去进行时不能省略 was / were。