听一段对话,回答第 11 — 12 小题。答题完毕,请等待“嘀”的信号,进入第一篇短文。
()11. How does the boy decide to go to the wetland park at first?
A. By car.
B. By underground.
C. By bus.
()12. Why does Susan take the underground?
A. Because it is faster than driving.
B. To protect the environment.
C. Because she wants to go there alone.

听第一篇短文,回答第 13 — 15 小题。请根据短文内容,选择正确答案,完成信息记录表。答题完毕,请等待“嘀”的信号,进入下一篇短文。
| A Tree-planting Day |
| Where and when: 13 on Saturday. |
| What to bring: A pair of gloves, 14, some water. |
| How to join us: Call on 15. |

()13. A. In front of the school
B. In the north-east of the city
C. In the north-east of a park
()14. A. a hat
B. ropes
C. some bottles
()15. A. 1573 1689
B. 1537 1689
C. 1537 1869

听第二篇短文,回答第 16 — 20 小题。
()16. Where is the lake?
A. Behind the library.
B. Between the school buildings.
C. Near the playground.
()17. Why did the fish die five years ago?
A. Because the water was polluted.
B. Because the water was too cold.
C. Because there wasn't enough food.
()18. Who helped the students find out the methods?
A. A 13-year-old boy.
B. A scientist.
C. The headmaster.
()19. How did the scientist clean the water?
A. By planting flowers.
B. By using a "glass box wetland system".
C. By changing all the water.
()20. Why was the "Man-made(人造的) Wetlands" class started?
A. To save more fish.
B. To make the school better.
C. To help the students learn more.