see somebody do something 与see somebody doing something 的区别

see sb do sth.表示看见某人做某事,强调看到某人做事的全过程.
see sb doing sth.表示看到某人正在做某事,强调正在做.
如：I saw him get on the bus. 我看见他上了车了.
I saw a girl reading in the park. 我看见一个女孩在公园里读书