听第二篇短文,回答第16至20小题。
(
B
)16. Why did the stream in Pinegrove Forest dry up?
A. The weather was too hot.
B. A big tree blocked(堵塞) the water.
C. The beavers took away all the water.
(
C
)17. Who said "Let's follow the dry stream"?
A. Bella the rabbit.
B. Bear the bear.
C. Foxy the fox.
(
B
)18. What happened after they moved the tree?
A. It started raining.
B. The water flowed again.
C. All the animals left.
(
C
)19. What lesson did the animals learn?
A. Big animals are more important.
B. Everyone can work alone.
C. Every animal matters.
(
A
)20. What did the animals promise to do?
A. Care for their forest.
B. Build a new dam.
C. Find the beavers.