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. What did the boy see in the wetlands?
A. Some unusual birds. B. Some unusual fish. C. Some unusual flowers.
()12. What has happened in the last hundred years?
A. Nearly half of the rare birds in the world have died.
B. People have built many buildings in the wetlands.
C. Nearly half of the wetlands in the world have disappeared.

11.A 12.C

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。

()13. A. change books B. change ideas
C. read their favourite books
()14. A. On Sundays B. On Wednesdays C. On Saturdays
()15. A. 50 B. 85 C. 25

13.B 14.C 15.A

听第二篇短文，回答第16～20小题。
()16. What may Shenzhen make you think of according to the passage?
A. Busy streets and tall buildings.
B. Modern supermarkets and busy traffic.
C. Nature reserves and special streets.
()17. Where is Futian Mangrove Nature Reserve?
A. In the countryside.
B. Near a busy road around the city.
C. Far away from the city.
()18. What's the size of the reserve?
A. About 368 square kilometres.
B. About 189 hectares.
C. About 368 hectares.
()19. What problem does the reserve have?
A. Air pollution.
B. Noise pollution.
C. Water pollution.
()20. Which of the statements is TRUE about the reserve?
A. It provides cover only for rare birds.
B. Some birds will choose to leave because of losing their living space.
C. The government has taken action to solve the noise problem.

16.A 17.B 18.C 19.B 20.C