2. 外语
  3. The food we eat seems to have significant effects on our health. Although science has made【S1】______steps in making food more fi

The food we eat seems to have significant effects on our health. Although science has made【S1】______steps in making food more fi

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问题      The food we eat seems to have significant effects on our health. Although science has made【S1】______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,【S2】______cancer of the colon(结肠). Different cultures are more likely to【S3】______certain illnesses because of the food that is【S4】______in these cultures. That food is related to illness is not a new【S5】______In 1945, government researchers realized that nitrates(硝酸盐)and nitrites(亚硝 ), commonly used to【S6】______colors in meats, and other food additives, caused cancer. Yet, these additives【S7】______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【S8】______. The additives that we eat are not all so direct. Farmers often give penicillin(青霉素)to beef and fowl 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【S9】______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 has tried repeatedly to control these procedures, the practices【S10】______.

A)contract                                             I)characteristic
B)preserve                                             J)remain
C)continue                                             K)enormous
D)especially                                           L)specifically
E)social                                               M)discovery
F)deal                                                 N)beneficial
G)harmful                                              O)financial
H)breakthrough
【S4】
选项
答案I
解析 由is可知该空应填一个形容词。该句是food的定语从句，由主句可知不同的文化是导致疾病的原因，可推测在不同的文化中食物是有自己的特点的，所以选characteristic，该词意思为“特有的”。
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大学英语四级

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