see v.看到，看见，观察，察看。是最常用且用得最广泛的词。指用眼睛看到人或物。强调“看”的结果。

还有识别或鉴别眼前事物能力意思。

如：We saw some people in the garden.

我们看见花园里有一些人。

He tried to win us over to his side, but succeeded in helping us to see through his trick.

他本想把我们争取到他那一边去，但结果却让我们看穿了他耍的花招。

look v.看，瞧。指看东西，常常表示一种命令，让某人在某物消失之前尽力去看。

这种用法与watch相似。

如：Look at the lizard over there on that rock.

瞧，那块岩石上的蜥蜴。

watch v.注意，注视，望，看。强调注意或好奇心，无论注意的动作是无意的还是有意的。这个词表示在观看过程中的兴趣。在表示命令时，watch这个词用得更为普遍。

如：Just watch what happens when I press the button.

注意看我在按动电钮时会发生什么事情

1) See

This is the simplest of the three. When you are aware of something by using your eyes, you see it, whether this is intentional or not.

When I went into my kitchen, I could see our cat, Mr Fluffy.

2) Look

The difference between see and look is that when you look at something, you do it deliberately. You deliberately turn your attention to it.

Mr Fluffy couldn't see me, he was looking at his food bowl, which was empty. Then I coughed, and he turned round and looked at me.

3) Watch

Watching is similar to looking in that it is also something you also do deliberately. But the difference is that you look it for a longer period of time, especially something that is changing or moving.

He was hungry. I knew because he just kept watching me – whatever I did. I walked to the other side of the kitchen to get him some food. All the time he was watching me.

see，behold，watch，look，regard，view，glance，gape，peep，peer