一、基本结构与用法
表示两个同时进行的动作 当主句和从句的动作在过去某一时间段内同时发生时,使用"while"引导时间状语从句,从句用过去进行时,主句用过去完成时或一般过去时。
- 例:
- While I was reading a book, my brother came in. (我正在读书时,他进来了)
强调动作的持续性
该结构要求从句和主句的动作必须是延续性的(如"reading"、"cooking"),而非瞬间动作(如"opened"、"stopped")。
二、典型例句解析
日常场景
- While she was listening to music, the phone rang. (她正在听音乐时,电话响了)
- While we were having dinner, he came into our room. (我们正在吃晚饭时,他进了房间)
自然现象与行为结合
- While it was raining, we watched a movie. (下雨时,我们看了电影)
- While the storm passed, the power came back. (暴风雨过后,电力恢复了)
对比与转折
- While she was studying hard, her cat jumped on her desk. (她正在努力学习时,猫跳上了书桌)
- While we were planning the trip, unexpected delays occurred. (我们正在计划旅行时,意外延误发生了)
三、注意事项
时间范围: 需明确两个动作是否在同一时间段内完成,避免混淆。 动词选择
通过以上例句和解析,可灵活运用"while+过去进行时"结构描述过去同时发生的动作。