2. 外语
  3. Are organically grown foods the best food choices? The advantages claimed for such foods over【C1】______grown and marketed food p

Are organically grown foods the best food choices? The advantages claimed for such foods over【C1】______grown and marketed food p

admin2012-05-17  30
问题     Are organically grown foods the best food choices? The advantages claimed for such foods over【C1】______grown and marketed food products are now being debated.【C2】______of organic foods—a term whose meaning varies greatly—frequently proclaim that【C3】______products are safer and more nutritious than others.
    The growing interest of【C4】______in the safety and nutritional quality of the typical North American diet is a welcome development.【C5】______, much of this interest has been sparked by sweeping claims that the food supply is unsafe or inadequate in meeting nutritional needs. Although most of these【C6】______are not supported by scientific evidence, the preponderance (优势) of written material【C7】______such claims makes it difficult for the general public to separate fact from【C8】______. As a result, claims that eating a diet【C9】______entirely of organically grown foods prevents or【C10】______disease or provides other benefits to health have become widely【C11】______and form the basis for folklore. Almost daily the public is【C12】______by claims for "no-aging" diets, new vitamins and other【C13】______foods. There are numerous unsubstantiated reports that【C14】______vitamins are superior to synthetic ones, that fertilized eggs are nutritionally【C15】______than unfertilized eggs and the【C16】______.
    One thing that most organically grown food products seem to have in common is that they【C17】______more than conventionally grown foods. But in many cases consumers are【C18】______if they believe organic foods can maintain health and provide better nutritional quality than conventionally grown foods. So there is real cause for concern if consumers particularly those with【C19】______incomes, distrust the【C20】______food supply and buy only expensive organic foods instead.
【C15】
选项 A、worse
B、higher
C、better
D、greater
答案C
解析 语义衔接题。空格所在句仍是reports的定语从句。按上一句推断还是说A比B好。这是指受精蛋比未受精蛋营养价值高，这里的更高是指“更好”，即选项C)better，因为具体比较内容还是fertilized eggs与unfertilized eggs，所以选项B)higher不可选。所以答案是C)。
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大学英语四级

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