听第一段长对话，回答第11至12小题。
()11. What happens to the wild animals?
A. The number of them is smaller and smaller.
B. There are more and more wild animals.
C. The number of them hasn't changed.
()12. Why do wild animals have fewer places to live?
A. Because more people keep them as pets.
B. Because forests are cut down.
C. Because they don't like living there.

11. A 12. B

听第二段长对话，回答第13至14小题。
()13. Why do some animals sleep in winter?
A. Because they're lazy.
B. Because they're fat.
C. Because of the cold weather.
()14. What keeps the sleeping animals warm in winter?
A. Body water.
B. Body fat.
C. Body blood.

13. C 14. B

听第三段长对话,回答第15至17小题。
()15. What does Jane think of growing vegetables?
A. It is great fun.
B. It is hard work.
C. It takes a lot of time.
()16. What plant does Jane enjoy growing best?
A. Carrots.
B. Potatoes.
C. Tomatoes.
()17. Which of the following is NOT true according to the dialogue?
A. Jane likes eating potatoes.
B. Jane can plant potatoes any time!
C. Jane can get great results after she plants potatoes.

15. A 16. B 17. B