这两个动词都可以作“看起来”讲，但look着重于视觉上看得出的印象，而seem暗示有一定根据，这种判断往往接近事实。在搭配上两者都可接形容词，动词不定式to be ，过去分词，介词短语。

He looks/seems fine.

他看上去很健康。

The girl looked/seemed to be very ill.

那女孩看上去病得很重。


在下列几种情况下只能用seem,不能用look

  • 后接动词不定式to do时

The man seemed to know all the students in our class.

这个人似乎认识我们班所有的学生。


  • 用于It seems/seemed that ...结构时。

It seemed that he missed the train.

看来他没有赶上火车。


  • 用于There seem to be 结构

There seems to be something wrong with your TV set .

你的电视机好像出了什么毛病。