UC知道现在进行时与现在进行完成时的区别
来源：百度知道 编辑：UC知道 时间：2024/05/17 21:31:47
A: What can I do for you today?
B: I think I have a rare and fatal disease...
A: Oh, really? How so?
B: Well, my stomach hurts all the time, and my urine is greenish-yellow!
A: Have you been eating anything out of the ordinary lately?
B: No. And my hair is falling out. I think I'm going bald!
A: Let me examine your scalp.
请问上面的这段对话中，医生可用“are you eating anything out of the ordinary lately?”来问病人吗？而病人可否用“my hair has been falling out”这样说呢？
如果医生像这样问，病人这样答，有没有问题呢？如果不能，可否举例说明并且说说您的区分方法？谢谢各位
现在进行时的基本用法：
1. 表示现在( 指说话人说话时) 正在发生的事情。
We are waiting for you.
2. 习惯进行：表示长期的或重复性的动作，说话时动作未必正在进行。
Mr. Green is writing another novel.
(说话时并未在写，只处于写作的状态。)
She is learning piano under Mr. Smith.
3. 表示渐变的动词有：get, grow, become, turn, run, go, begin等。
The leaves are turning red.
It's getting warmer and warmer.
4. 与always, constantly, forever 等词连用，表示反复发生的动作或持续存在的状态，往往带有说话人的主观色彩。
You are always changing your mind.
现在完成时行时的用法：
现在完成进行时表示从过去某一时间开始一直延续到现在的动作。现在这个动作可能刚刚终止，也可能仍在进行。
I have been sitting here all afternoon.
我在这儿坐了一下午了。
How long has it been raining?
雨下了多久了?
They have been fighting for independence since 1960s.
他们从60年代以来一直为独立而斗争。
3?现在完成进行时和现在完成时的区别
1)现在完成进行时一般强调过去发生的动作现在仍在继续。
现在完成时强调过去发生的动作现在已经完成或表示曾经发生过。
I have been writing an article.
我一直在写一篇文章。(仍在)
I have written an article.
这已写好一篇文章。(已完成)
I have been reading that book since