D
Sports can be a lot of fun. They are also a great way to get exercise. But it's important to play safely(安全地)and keep your body healthy.
Warm up. Before playing，take time to warm up. Go for a light and slow run. Learn a few stretches(伸展运动). Stretching will help your body relax.
Wear protective gear(防护装备). This includes helmets，pads，and mouth guards. Different sports use different gear. Make sure it fits you well.
Drink water. The body needs water to stay healthy. When you sweat(出汗)，your body loses water. That's why it's good to keep a water bottle with you when you play. Take a break and drink up!
Do you know? It's important to listen to your coach(教练). Coaches teach players the rules of a sport. Rules help keep you and other players safe. That makes for a good game.
()13. Which of the following can be put in the “”?
A. Find out why.
B. Find out how.
C. Find out where.
D. Find out when.
()14. What can you do to warm up?
A. Walk a lot.
B. Run a little.
C. Go swimming.
D. Jump up and down.
()15. What do coaches do?
A. They help players play safely.
B. They listen to players carefully.
C. They find new games for players.
D. They make a good game.
()16. Where can you read the passage?
A. In a storybook.
B. In a dictionary.
C. In a picture book.
D. In a sports magazine.

13. B 14. B 15. A 16. D

【解析】
13. 空格后内容介绍了安全运动的具体方法，如热身、佩戴防护装备等，因此此处应填入“Find out how.（了解怎么做）”，故选B。
14. 根据文中“Before playing，take time to warm up. Go for a light and slow run.”可知，热身可以进行轻松缓慢的跑步，对应选项B，故选B。
15. 由文中“Coaches teach players the rules of a sport. Rules help keep you and other players safe.”可知，教练教运动规则，规则能保障安全，即教练帮助运动员安全运动，故选A。
16. 本文围绕运动安全的方法展开，属于运动相关内容，因此最可能在体育杂志中读到，故选D。
【答案】
13. B；14. B；15. A；16. D
【知识点】
主旨句选择、细节理解、文章出处判断
【点评】
本文围绕运动安全展开，通过介绍热身、佩戴装备等具体方法，引导读者安全运动。题目从文章结构、细节内容及文体出处多角度考查，可提升学生信息提取与逻辑判断能力。
【难度系数】
0.8