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  3. The food we eat seems to have profound effects on our health. Although science has made enormous steps in making food more fit t

The food we eat seems to have profound effects on our health. Although science has made enormous steps in making food more fit t

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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.
Which of the following statements is NOT true?
选项 A、Drugs are always given to animals for medical reasons.
B、Some of the additives in our food are added to the food itself and some are given to the living animals.
C、Researchers have known about the potential dangers of food additives for over 35 years.
D、Food may cause 40% of cancer in the world.
答案A
解析 本题是一道判断是非题。我们可以针对四个选择项所提供的内容，利用查阅式阅读和排除法，对照原文相关部分找出本题的正确答案A“给动物吃药是为了治病”。此选项的内容与文章最后一部分即倒数第二句话和倒数第三句话的内容相反。原文指出，有时类似的药物用于动物，不是为了治病，而是为了赚钱。农民们只是为了在市场上卖出更高的价钱便设法用药物催肥动物。B“有些添加剂直接用在食品中，而有些是喂给动物吃”。此选项与原文倒数第四句话和倒数第五句话的内容一致。这两句指出，我们所食用的添加剂不都是直接食用的。农民常给肉牛或其他动物喂食盘尼西林，因此，人们在食用了盘尼西林的母牛的牛奶中发现了这种药物。即人们可以从牛奶中间接食用添加剂盘尼西林。C“研究人员对食品添加剂对人体有潜在的危险一事已知晓了35年之多”。此选择项与文章中间部分的内容是一致的。文章中间部分指出，早在35年前的1945年，官方研究人员就认识到普遍用于保持肉类颜色的硝酸盐和其他食品添加剂可以导致癌症。D“世界上有40％的癌症是由食物导致的”。利用查阅式阅读法，我们可以在文章的第三句话中找到与此选项相关的内容。
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