has been doing的时态是什么

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has been doing的时态是什么
  has been doing的时态

现在完成进行时

have been working 表示,过去已经在工作,并且现在还在工作.

过去时间里开始、并持续到现在,一直在进行的(或刚结束的)动作或状态。构成:have/has been doing sth. 或 have/has been + v.-ing

例句:I have been working for 12 hours. 我已经工作了12小时了(刚结束了工作,或者还正在做并将继续)。

现在完成进行时的谓语动词构成 I/ we/ you/ they have been doing sth. he/ she/ it has been doing sth.

(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。

The Chinese have been making paper for two thousand years.

中国有2000年的造纸历史。(动作还将继续下去)

I have been learning English since three years ago.

自从三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到现在正在进行的动作。

We have been waiting for you for half an hour.

我们已经等你半个钟头了(人还没到,如同在电话里说的,还会继续等)

(三)有些现在完成进行时的句子等同于现在完成时的句子。

They have been living in this city for ten years.

They have lived in this city for ten years.

他们在这个城市已经住了10年了。

I have been working here for five years.

I have worked here for five years.

我在这里已经工作五年了。

(四)大多数现在完成进行时的句子不等同于现在完成时的句子。

I have been writing a book.(动作还将继续下去)

我一直在写一本书。

I have written a book.(动作已经完成)

我已经写了一本书。

They have been building a bridge.

他们一直在造一座桥。

They have built a bridge.

他们造了一座桥。

(五)表示状态的动词不能用于现在完成进行时。

I have known him for years.

我认识他已经好几年了。

* I have been knowing...

这类不能用于现在完成进行时的动词还有:love爱,like喜欢, hate讨厌,等。

  has been doing的例句

1. The government has been doing some blue-sky thinking on how to improve school standards.

就如何提高学校的水平,政府仍然在作一些漫无边际的构想。

2. He has been doing long - distance running exercise for a long time now.

他练 长跑 已经不少日子了.

3. He has been doing this sort of work for years.

他干这一行有年头了.

4. Where have you been? Your mother has been doing her nut for two hours wondering.

你到哪里去了? 你母亲为你焦虑了整整两个小时.

5. No wonder people think Manfred has been doing a great job.

人们认为曼弗雷德一直在从事伟大的工作也不足为奇.

6. Old Mrs Green has been doing for me since my wife died.

自从我的妻子死后,格林老太太一直为我料理家务.

7. He has been doing engineering at Sheffield University.

他一直在舍菲尔德大学攻读工程学.

8. He has been doing clerical work since his graduation from theological college.

他从神学院毕业后就一直担任神职工作.

9. And that was what she has been doing for 15 years.

这就是她15年来一直在做的事.

10. I agree with the way the Secretariat has been doing this work.

赞成书记处这么抓.

  现在完成进行时的介绍

现在完成进行时,是英语中, 动词的一种基本 时态,其构成为: 主语+助动词(have/has)+been+动词的 现在分词+其他成分。表示动作从某一时间开始,一直持续到现在,或者刚刚终止,或者可能仍然要继续下去。(与since,for连用时,要用连续性动词,不可用瞬间动词,但连续性动词常常表示动作会进行下去)

也可以表示某种经历。

基本句型

肯定式 第一人称 have been doing sth.

疑问式 Have 第一人称 been doing sth.

简略回答 Yes, 第一人称 have. No, 第一人称 haven't.

肯定式 第三人称 has been doing sth.

疑问式 Has 第三人称been doing sth.

简略回答 Yes, 第三人称has. No, 第三人称hasn't.

1) 表示一个在过去开始而在最近刚刚结束的行动,如:

Ann is very tired. She has been working hard.

Why are your clothes so dirty? What have you been doing?

2) 表示一个从过去开始但仍在进行的行动,如:

It has been raining for two hours. (现在还在下)

Jack has been feeling very well recently.

3) 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,如:

She has been playing tennis since she was eight.

4) 现在完成时强调动作行为的 结果 、影响,而现在完成进行时只强调动作行为本身,如:

Tom’s hands are very dirty. He has been repairing the car.

The car is going again now. Tom has repaired it.

标志:1.句中常有延续性动词 [1] ,2.时间点前有since。