look\watch\see的区别

LOOK

基本区别点：

1. 其意义是用眼睛看，也就是移动视线。无论移动后能否看到事物。
2. 即使移动视线后看到事物，也并不关心事物的活动和状态。
3. 如果要让视线移动到某个特定事物，则需要在事物之前加介词at。

例句：

1. Look! I'm sure that's Brad Pitt!
2. If you look carefully you can see our house from here.
3. She looked at me and smiled.

WATCH

基本区别点：

1. 把注意集中到某事物上。
2. 所关注的事物可以移动或发生改变。

例句：

1. He watched the house for signs of activity.
2. We watched to see what would happen next.
3. They watched the bus disappear into the distance.
4. We are watching a football game.

SEE

基本区别点：

1. 注意到某个事物，但不必把注意力集中到该事物身上。
2. 并不关注事物是否移动或发生改变。

例句：

1. She looked for him but couldn't see him in the crowd.
2. He could see she had been crying.
3. Did you see that programme on Brazil last night?
4. In the evening we went to see a movie.

注意SEE和WATCH在观看演出时的区别。SEE更关注这个观看的动作是否发生了（是否看了？），而WATCH更关注这个活动的本身（正集中精力注视它）。