“be doing when...” 结构详解与例句
什么是 “be doing when...”?
“be doing when...” 是英语中一个常见的句型,用于描述 过去某一时刻正在进行的动作被另一个突然发生的动作打断。
其中,“be doing” 通常是 过去进行时(was/were + doing),
而 “when” 引导的从句通常使用 一般过去时。
基本结构: 主语 + was/were + 动词-ing + when + 主语 + 动词过去式...
经典例句
- I was cooking dinner when the phone rang.
- They were playing soccer when it started to rain.
- She was reading a book when her brother came in.
- We were watching a movie when the power went out.
- He was walking home when he saw an accident.
- The kids were sleeping when the fire alarm went off.
- I was taking a shower when you called me.
- They were discussing the plan when the boss entered the room.
使用小贴士
✅ “be doing” 部分强调动作的 持续性(正在做某事)。
✅ “when” 后面的动作通常是 短暂、突然发生 的事件。
✅ 有时也可以用 “while” 替代,但含义略有不同:“while” 强调两个动作同时持续进行。