什么是 “While Be Doing”？
“While be doing” 并不是一个独立的语法结构，而是指在使用 while 引导时间状语从句时，主句或从句中使用 进行时态（be + V-ing） 的常见表达方式。
它用于描述两个同时发生的动作，尤其强调某一动作发生时，另一动作正在进行。
基本结构
- While + 主语 + be + V-ing, 主语 + 动词（一般过去时/现在时等）
- 主语 + 动词, while + 主语 + be + V-ing.
While I was cooking, the phone rang.
She listened to music while she was studying.
She listened to music while she was studying.
使用场景
- 描述背景动作：一个动作作为背景，另一个动作在此期间发生。
- 对比两个同时进行的动作：常用于叙述故事或日常经历。
- 强调动作的持续性：突出“正在做”的状态。
常见错误提醒
- ❌ 错误：While I cooked, he entered. （未体现“正在煮”）
✅ 正确：While I was cooking, he entered. - ❌ 错误：While be doing...（缺少主语）
✅ 正确：While you are doing...
更多实用例句
While they were walking in the park, it started to rain.
He tripped while he was running.
While I am working, please don’t disturb me.
The kids were laughing while watching cartoons.
He tripped while he was running.
While I am working, please don’t disturb me.
The kids were laughing while watching cartoons.