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Understanding what's killing the world's coral reefs……阅读理解及答案           ★★★
Understanding what's killing the world's coral reefs……阅读理解及答案
作者:1 文章来源:网络 点击数: 更新时间:2017/9/23

Understanding what's killing the world's coral reefs has been the life work of Mark Hay, the Teasley Professor in the School of Biology at the Georgia Institute of Technology. During the past 35 years, he has made more than 5,000 dives in both the Caribbean and Pacific, and each year spends as much as five months with villagers on the Fiji Islands.
On November 7, 2015,he received the Lowell Thomas Award from the New York-based Explorer’s Club. “Dr. Hay’s research and discoveries have influenced the foundations in the field of marine (海洋的)chemical ecology and created new procedures for effective conservation and management of the world’s coral reefs,” the organization said.
Hay notes that over the last 40 years, the world has lost 80% of coral reefs in Caribbean and 50% of the reefs in the Pacific. “For about a billion people around the world in the tropics ^ coral reefs are one of the major sources of protein, so the loss affects food security for these areas,” he saicL “Reefs also provide storm protection for low-lying villages,absorbing big waves coming into shore.”
Hay's research has focused on the complex interactions between species,communicated by chemical signals sent out by the plants and animals that are part of the reef community. For instance, seaweeds (海藻)harm coral by sending out poisonous chemicals,and by mechanically damaging it Certain fish protect coral by controlling the seaweeds, but overfishing has allowed seaweeds to get out of control on many reefs.
Among recent examples, Hay and partners have learned that degraded (退化)reefs produce chemicals that tell baby fish and baby corals to stay away. Unless those signals can somehow be changed, damaged reefs won’t have a chance to recover.
At Georgia Tech, Hay keeps an office and a lab. But the majority of his experiments are conducted outside, on the coral reef, building cages to learn about interactions between plants and animals.
32. According to the first paragraph,we can know Mark Hay_      
A. devotes himself to studying coral reefs
B. is the best expert in protecting the ocean
C. does most of his experiments in the lab
D. is very interested in physical exercise
33. What made Mark Hay win the prize?
A. His great contribution to animals’ safety.
B. His great devotion to helping the poor.
C. His discovery about finding new coral reefs.
D. His research on the coral reef conservation^
34. In the third paragraph,Mark Hay wants to show that_     
A. coral reefs do much harm to sea life
B. storms destroy the world seriously
C. the loss of coral reefs influences other creatures greatly
D. people have doubted the importance of coral reefs
35. How does the author show the complex interactions between species?
A. By making an assumption. B. By giving an example.
C. By showing a reason. D. By giving a definition.
参考答案: 32-35 ADCB


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