3.不定式的进行式

不定式的进行式表示与谓语动词同时进行的动作。

The noise seemed to be coming from the room behind the statue in front of them．(人教大纲版高一上第83页)

声音似乎来自他们前面塑像后面的房间里。

We are said to be living in the“Information Age”．(人教大纲版高二下第62页)

人们都说我们生活在“信息时代”。

It's nice of you to be helping us these days．

你真好，这些天一直在帮我们。

He pretended to be listening to the teacher carefully．

他假装在认真地听老师讲课。

We didn't expect you to be waiting for us here．

我们没料到你一直在这儿等我们。