第一节完形填空 (共10小题；每小题2分，满分20分)
阅读下面短文，掌握其大意，然后从21～30各题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。
Sea turtles have been on Earth for millions of years, but they may soon die out. The main 21 to them is people who kill them for food, according to Dr. Wallace J. Nichols of the University of California.
But the latest news may 22 turtle hunting: Dr. Nichols has found that sea turtles 23 a lot of pollution from the ocean. This pollution is unhealthy for both turtles and humans. It can cause __24__ damage to their bodies and lead to death. Research shows that many people get sick and even die from eating sea turtle meat.
In the US, most people have never eaten turtle. This is because turtles are 25 by the United States law, which makes it 26 to harm or kill these amazing animals. “But many people in other countries still eat them,” explains Nichols. “Our first 27 was to save turtles; now we must save 28 too.”
Davis said he also wants to send out a bigger 29 that we should protect the oceans. “The health of the ocean, animals in the ocean, and our own health are all 30 . A clean ocean is really good for us too because of the food we eat from there.”
21. A. doubt B. stream C. danger D. worry
22. A. accelerate B. slow C. improve D. change
23. A. cause B. expand C. absorb D. reduce
24. A. accidental B. occasional C. unknown D. serious
25. A. qualified B. protected C. restricted D. produced
26. A. impossible B. difficult C. illegal D. abnormal
27. A. goal B. impression C. difficulty D. cost
28. A. Earth B. ocean C. people D. animals
29. A. advertisement B. message C. sign D. problem
30. A. concerned B. disturbed C. developed D. connected
