一、听对话回答问题（每小题1分，共10分）
本部分共有10道小题，每小题你将听到一段对话，每段对话听两遍。听完后，选出你认为最合适的备选答案。
() 1. Which organization are the speakers talking about?
A. Oxfam
B. ORBIS
C. WWF
() 2. What will Mr. Li do tomorrow?
B.
() 3. What may Betty like better?
B.
() 4. When many trees are being cut down, how will the temperature change?
B.
() 5. What does the man think the colour of nature is?
A. Green.
B. Red.
C. Blue.
() 6. Where did Mike go last year?
A. To the Nile.
B. To the Caspian Sea.
C. To the Sahara.
() 7. When did Jerry go to plant trees?
A. Yesterday.
B. Last week.
C. Last month.
() 8. What are they talking about?
A. Pollution in China.
B. Pollution in the world.
C. The world’s population.
() 9. What does the girl keep doing for two years?
A. Riding bikes to school.
B. Recycling soft drink bottles.
C. Using both sides of the paper.
() 10. What is the lake like now?
A. It’s clean.
B. It smells terrible.
C. It’s the nicest one in the town.

1.C 2.B 3.B 4.B 5.A 6.A 7.B 8.B 9.B 10.B