听一段对话，回答第11~12小题。
（）11. When is the trip?
A. This Saturday.
B. Next Saturday.
C. Next Sunday.
（）12. Where will they go?
A. They will go to the park.
B. They will go to the countryside.
C. They will go to Zhalong.

听第一篇短文，回答第13～15小题。

（）13. A. Jiangsu B. Zhejiang C. Heilongjiang
（）14. A. fishes B. insects C. lions
（）15. A. swans B. eagles C. red-crowned cranes

听第二篇短文,回答第16~20小题。
（）16. How big is Zhalong Nature Reserve?
A. About 210,000 hectares(公顷).
B. About 201,000 hectares.
C. About 20,0100 hectares.
（）17. Why is it an ideal home for plants, fishes and birds?
A. Because it's a nature reserve.
B. Because it is the "kidney" of the earth.
C. Because it provides food and cover for them.
（）18. How many crane species(物种) are there in Zhalong?
A. 8.
B. 6.
C. 15.
（）19. Why do some people want to make the wetlands smaller?
A. To protect the environment.
B. To make more money.
C. To have more space for farms and buildings.
（）20. Who is the speaker inviting to count birds now?
A. Primary school students.
B. Secondary school students.
C. High school students.