现在完成进行时的用法及例句

1）现在完成进行时表示一个持续到现在的动作：

I've been waiting an hour and he still hasn't turned up. 我等了一个钟头他还没来。

What have you been doing all these days? 你这些天一直在干什么？

I'm very tired. I've been working all morning. 我很累。我干了一上午了。

2）这个时态常和how long, long这类状语一起用：

How long have you been wearing glasses? 你戴眼镜有多久了？

Have you been waiting long? 你等很久了吗？

This has been going on all day long. 这已经进行了一整天了。

还可以和since 及for 引导的状语一起用：

We've been living in this city since 1980. 从1980年起我们一直住在这座城市。

They have been quarrelling ever since they got married. 自结婚以来他们一直争吵不休。

3）在不少情况下这动作和现在状态有联系：

He is out of breath. He's been running. 他气喘吁吁，一直在跑。

Her eyes are red. Has she been crying? 她眼睛红红的，是不是哭来着？

4）有时表示动作的重复：

He hasn't been eating regularly recently. 近来他吃饭不规律。

You've often been making mistakes like this. 你老犯这样的错误。