B
The Great Barrier Reef—a natural wonder in danger
The Great Barrier Reef is one of the most wonderful natural wonders in the world. It is in the northeast of Australia. It has lots of colourful coral and fish. It is much more beautiful than most coral reefs.
But now the reef is crying aloud for help. It is becoming less colourful. Lots of coral is turning white when the sea water is getting hotter. Besides, pollution and fishing also hurt the reef.
If we do not protect it, many amazing sea animals will lose their homes. We must act quickly to save this great wonder.
根据语篇内容，按要求回答问题。
6. Where is the Great Barrier Reef?

7. What does the Great Barrier Reef have?

8. When does coral turn white?

9. Why is the reef in danger?

10. What can we do for the reef?

6. It is in the northeast of Australia.
7. It has lots of colourful coral and fish.
8. When the sea water is getting hotter.
9. Because the sea water is getting hotter, and pollution and fishing also hurt the reef.
10. We can stop throwing rubbish into the sea.（言之有理即可。）