2. 考研
  3. When Dr. John W. Gofman, professor of medical physics at the University of California and a leading nuclear critic, speaks of "e

When Dr. John W. Gofman, professor of medical physics at the University of California and a leading nuclear critic, speaks of "e

admin2010-05-05  54
问题     When Dr. John W. Gofman, professor of medical physics at the University of California and a leading nuclear critic, speaks of "ecocide’ in his adversary view of nuclear technology, he means the following: A large nuclear plant like that in Kalkar, the Netherlands, would produce about 200 pounds of plutonium each year. One pound, released into the atmosphere, could cause 9 billion cases of lung cancer. This waste product must be stored for 500,000 years before it is of no further danger to man. In the anticipated reactor economy, it is estimated that there will be 10,000 tons of this material in western Europe, of which one table—spoonful of plutonium—239 represents the official maximum permissible body burden for 200,000 people. Rather than being biodegradable, plutonium destroys biological properties.
    In 1972 the U.S. Occupational Safety and Health Administration ruled that the asbestos level in the work place should be lowered to 2 fibers per cubic centimeter of air, but the effective date of the ruling has been delayed until now. The International Federation of Chemical and General Workers’ Unions report that the 2-fiber standard was based primarily on one study of 290 men at a British asbestos factory. But when the workers at the British factory had been reexamined by another physician, 40-70 percent had X-ray evidence of lung abnormalities. According to present medical information at the factory in question, out of a total of 29 deaths thus far, seven were caused by lung cancer. An average European or American worker comes into contact with six million fibers a day. "We are now, in fact, finding cancer deaths within the family of the asbestos worker," states Dr. Irving Selikoff, of the Mount Sinai Medical School in New York.
    It is now also clear that vinyl chloride, a gas from which the most widely used plastics are made, causes a fatal cancer of the blood-vessel ceils of the liver. However, the history of the research on vinyl chloride is, in some ways, more disturbing than the "Watergate cover-up". "There has been evidence of potentially serious disease among polyvinyl chloride workers for 25 years that has been incompletely appreciated and inadequately approached by medical scientists and by regulatory authorities," summed up Dr. Selikoff in the New Scientist. At least 17 workers have been killed by vinyl chloride because research over the past 25 years was not followed up. And for over 10 years, workers have been exposed to concentrations of vinyl chloride 10 times the "safe limit" imposed by Dow Chemical Company.
Notes:
plutonium 钚
asbestos 石棉
polyvinyl chloride 聚氯乙烯
选项 A、waste utilization.
B、ecological balance.
C、radioactive reaction.
D、massive bio destruction.
答案D
解析 词汇释义题。本题问："ecocide"的含义是什么?本题测试根据上下文推测词义的能力。后面写到：荷兰卡尔卡那样的核工厂每年生产约200磅钚，只要一磅钚释放到大气层就可能使90亿人患肺癌。可见，戈夫曼博士在反核技术的观点中谈到的是"巨大的生物毁灭"。此外，从构词上看，eco-意为"生态"，-cide作为后缀，意为"杀灭"。所以，ecocide意为"生态生物灭绝"。
转载请注明原文地址:https://kaotiyun.com/show/7U44777K
0

考研英语一

相关试题推荐
随机试题
最新回复(0)