原因如下：
Basketball is one of the most popular sports in the world.（篮球是世界上最受欢迎的运动之一）
Playing basketball can strengthen our body, especially for children who are growing and developing.(打篮球可以强身健体，尤其是对于正在生长发育的小孩）
Playing basketball can bring us a lot of happiness.（篮球带给我们很多快乐）
We can learn a lot from basketball, such as intelligence, tactics, teamwork and so on.（我们可以从篮球运动中学习很多东西，比如智慧，战术，团队协作等等）