1 see sb. do sth. 表示看見整個事件、行動的全過程,動作已經(jīng)結束。
He saw her cross the road. 他看見她過了馬路。
I saw them get on the bus. 我看見他們上了公交車。
2 see sb. doing sth. 強調(diào)事件、行動正在進行。
He saw her crossing the road. 他看見她在過馬路。(正在走著 )
She saw a boy climbing a tree. 她看見一個男孩在爬樹。
One day his father saw him sitting on a rock by the river. 一天,他父親看見他坐在河邊的一塊巖石上。