听第二篇短文,回答第16至20小题。
(
B
)16. Where do volunteers clean up the beach every weekend?
A. In the Mediterranean Sea.
B. In the coastal areas of Australia.
C. In many ocean parks.
(
A
)17. What do volunteers pick up on the beach?
A. Plastic rubbish.
B. Small fish.
C. Diving tools.
(
B
)18. What have local fishermen stopped using?
A. Special nets.
B. Large nets.
C. Fishing boats.
(
C
)19. What do workers in ocean parks do to protect marine animals?
A. Clean up the sea.
B. Close the dive business.
C. Give lessons to visitors.
(
A
)20. What is the main purpose of the text?
A. To tell people how to protect marine animals.
B. To introduce different marine animals.
C. To ask people to visit ocean parks.
