单词拼写。

1. Bob often takes an _____ (积极的) part in his school activities.

2. Dr. Naismith _____ (发明) a game played on a hard wooden floor.

3. _____ (撞) into players and falling down would be dangerous.

4. Dr. Naismith _____ (划分) the men in his class into two teams.

5. Can you put the ball into the b_____?

6. Players move t_____ one end of the court while throwing the ball to each other.

7. They used the experience to help d_____ the game at home.

8. The popularity of basketball has r_____ worldwide.