(1)
(2)
71%
(2)
70%
答案:1. 71%.
2. 70%.
2. 70%.
(
(

(
(

(
A. In the low place of trees.
B. In the canopy(林冠层).
C. In rivers.
(
A. The sun changes their colour.
B. Tiny algae(海藻) give colour.
C. Fish paint them.
(
A. There is much ice.
B. They can't find enough food.
C. They find no space to live in.
(
A. Grass and flowers.
B. Fruit and vegetables.
C. Fish and insects.
(
A. Make oxygen.
B. Break down dead leaves.
C. Grow fruit.
(
A. To look pretty.
B. To stay safe.
C. To stay warm.
B
) 1. What are the two speakers talking about?
(
B
) 2. What do tiny ocean plants make for humans?
(
B
) 3. What kind of bird might you see in Zhalong Nature Reserve?
(
A
) 4. Where can we usually find zebras?
(
B
) 5. Where do monkeys live in the forest?A. In the low place of trees.
B. In the canopy(林冠层).
C. In rivers.
(
B
) 6. Why are coral reefs colourful?A. The sun changes their colour.
B. Tiny algae(海藻) give colour.
C. Fish paint them.
(
C
) 7. Why are polar bears in danger?A. There is much ice.
B. They can't find enough food.
C. They find no space to live in.
(
C
) 8. What do birds find in wetlands?A. Grass and flowers.
B. Fruit and vegetables.
C. Fish and insects.
(
B
) 9. What do mushrooms do in forests?A. Make oxygen.
B. Break down dead leaves.
C. Grow fruit.
(
B
) 10. Why do mountain hares turn white?A. To look pretty.
B. To stay safe.
C. To stay warm.
答案:1-5 BBBAB 6-10 BCCBB