have been doing 和was doing的区别
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have been doing 和was doing的区别
have been doing 和was doing的区别
have been doing 和was doing的区别
have been doing 表示过去某一动作一直持续到现在,而且还有可能继续持续 下去.was doing表示过去某一时刻正在进行的动作.
was doing 过去进行时,表示过去某一个阶段一直在进行的动作。
have been doing 现在完成进行时。
现在完成进行时
一、现在完成进行时的谓语动词构成 have/has been working
二、现在完成进行时的功能
(一)表示从过去某时开始一直持续到现在的动作,并且还将持续下去。
I have been lear...
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was doing 过去进行时,表示过去某一个阶段一直在进行的动作。
have been doing 现在完成进行时。
现在完成进行时
一、现在完成进行时的谓语动词构成 have/has been working
二、现在完成进行时的功能
(一)表示从过去某时开始一直持续到现在的动作,并且还将持续下去。
I have been learning English since ten years ago.
自从十年前以来我一直在学英语。(动作还将继续下去)
(二)表示在说话时刻之前刚刚结束的动作。
We have been waiting for you for half an hour.
我们已经等你半个钟头了。(动作不再继续下去)
(三)表示一个从过去开始延续到现在,可以包括现在在内的一个阶段内,重复发生的行动。
She has been playing tennis since she was eight.
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have been doing 现在完成进行时;是指发生在过去并且现在仍在继续的事情
So you have been doing very nicely at Tara, have you?
"你就这样在塔拉一直过得很好,是吗?
was doing 过去进行时
We were building a reservoir last winter.
去年冬天我们在修建一座水库。
have been doing 现在完成时,(直到说话时或到说话时为止)一直在做
和was doing过去进行时 ,过去某个时候在做(动作没有延续到现在)