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  3. The food we eat seems to have profound effects on our health. Although scien

The food we eat seems to have profound effects on our health. Although scien

游客2025-03-24  55
问题     The food we eat seems to have profound effects on our health. Although science has made enormous steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to the diet as well, especially cancer of the colon. Different cultures are more likely, to cause certain different illnesses because of the food that is characteristic in these cultures. That food is related to illnesses is not a new discovery. In 1945, about 35 years ago, government researchers realized that nitrates, commonly used to preserve color in meats, and other food additives, caused cancer. Yet, these carcinogenic additives remain in our food, and it becomes more difficult all the time to know which things on the packaging labels of processed food are helpful or harmful. The additives which we eat are not all so direct. Farmers often give penicillin to beef and living animals, and because of this, penicillin has been found in the milk of treated cows. Sometimes similar drugs are given to animals not for medical purposes, but for financial reasons. The farmers are simply trying to fatten the animals in order to obtain a higher price on the market. Although the Food and Drug Administration (FDA) has tried repeatedly to control these procedures, the practices continue. [br] How has science done something harmful to mankind?
选项 A、It caused a lack of information concerning the value of food.
B、Because of science, diseases caused by polluted food have been virtually eliminated.
C、Because of the application of science, some potentially harmful substances have been added to food.
D、The scientists have preserved the color of meats, but not of vegetables.
答案 C
解析 本题问科学给人类带来的危害是什么。文章第二句指出，虽然科学在使食物更适合食用方面取得了很大进展，但它同时也使得许多食物不适于食用了。接着作者利用数字和实例介绍了食物由于科学的缘故所带来的危害，如因添加了食品添加剂会导致疾病等。因此，本题正确答案是C“由于运用科学，食品中添加了某些可能有害的东西”。
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