四、阅读材料，选择正确的答案。
　　We all like parks. Here are some reasons why parks are important to us.
　　Clean air(净化空气)
　　We can see a lot of trees, grass and flowers in the park. They can collect(收集) water and give us fresh air.
　　Meet people
　　We can meet new people and talk with them in a park. Children can meet their friends and play a lot of games in the park.
　　Do sports
　　People can do some sports in the park. They can run, jump and play ball games. They can also have picnics, fly kites and climb the hills.
　　Protect(保护) animals
　　Park ecosystem(生态系统) is good for different animals. Today many animals have no homes. Parks provide(提供) safe places for them.
(　　　)1. In the material, there are ________ reasons why parks are important to us.
　　　　A. four B. five C. six
(　　　)2. ________ can collect water and give us fresh air.
　　　　A. Flowers and grass B. Trees C. Both A and B
(　　　)3. Children also like parks, because they can ________.
　　　　A. play lots of games B. sleep in the tree C. go swimming
(　　　)4. The underlined word “safe” means “________” in Chinese.
　　　　A. 危险的 B. 有害的 C. 安全的
(　　　)5. You can probably see the material in a(n) ________.
　　　　A. storybook B. magazine(杂志) C. art book

1. A 解析：通读材料可知，材料列举了四条公园对我们来说重要的原因——Clean air，Meet people，Do sports 和 Protect animals。故选 A。
2. C 解析：根据材料中“We can see a lot of trees, grass and flowers in the park. They can collect water and give us fresh air.”可知，公园里的花、草和树木可以为我们收集水和提供新鲜空气。故选 C。
3. A 解析：根据材料中“Children can meet their friends and play a lot of games in the park.”可知，孩子们喜欢公园是因为可以在公园里玩很多游戏。故选 A。
4. C
5. B 解析：通读材料可知，材料主要讲述了公园的重要意义，并列举了四点原因，这篇材料最可能出现在自然杂志上。故选 B。