为什么玩球要写成play with the ball而不能写成play ball 为什么加with?我知道表示玩球类运动前不加the

"play with" 固定塔配:
1.The children are playing with toys.
2.These bottlenosed dolphins played with a few balls after the show
3.有时还可以写成:A dolphin at the Mirage in Vegas playing ball with himself.
4.或:Video of girl playing ball with dolphins.
5.可以写成:play hockey; play badminton; play chess; play cowboy 演牛仔.