1:Some children are playing with water. 解析: 2:I see some people flying kite. 解析:see sb doing sth 看见某人正在做某事. 3:I am worried about you. 解析:be worried about 担心 worry作为形容词. I worry about you. 解析:worry about sb worry 是作为动词 4:LUCY is silient ,as she is sleeping. 5:He was suprised at the suprise news. 解析:be suprised at 因为某事而吃惊.