什么是现在完成进行时?
现在完成进行时(Present Perfect Continuous Tense)用于描述一个动作从过去某一时刻开始,一直持续到现在,可能仍在继续,也可能刚刚结束。其基本结构为:
主语 + have/has + been + 动词-ing
I have been studying English for three hours.
她has been working here since 2020.
使用场景
- 强调动作的持续性(通常与 for/since 连用)
- 表示最近刚结束但有可见结果的动作
- 表达情绪(如不耐烦、惊讶等)
Your eyes are red. Have you been crying?
They have been arguing all morning!
常见时间状语
- for + 时间段(for two hours, for a week)
- since + 时间点(since Monday, since 2020)
- all day / all morning / recently / lately
与现在完成时的区别
现在完成时(have done) 强调动作的结果或经历;
现在完成进行时(have been doing) 强调动作的持续过程。
I have read this book.(读完了)
I have been reading this book.(一直在读,可能还没读完)