第一部分 听句子和对话回答问题
() 1. Which ecosystem is the speaker talking about?

B.
() 2. How will the temperature change according to the dialogue?

B.
() 3. Which is the "kidneys" of the earth?

B.

听第一段对话,回答第4至6小题。
() 4. Why does the boy like the forest?
A. He likes eating fruit.
B. Air is fresh in the forest.
C. There are many animals in the forest.
() 5. Why are forests important to animals?
A. Forests give animals homes and food.
B. Animals can get medicine in the forest.
C. Forests can keep animals warm in winter.
() 6. What is the dialogue mainly about?
A. The importance of forests.
B. The ways to protect forests.
C. The things to do in forests.