2. 外语
  3. Are organically grown foods the best food choices? The advantages claimed for such foods 【C1】______conventionally grown food pro

Are organically grown foods the best food choices? The advantages claimed for such foods 【C1】______conventionally grown food pro

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问题     Are organically grown foods the best food choices? The advantages claimed for such foods 【C1】______conventionally grown food products are now being【C2】______. Advocates of organic foods —a term whose meaning【C3】______greatly — frequently proclaim that such products are safer and more nutritious than others.
    The growing interest of consumers in the safety and nutritional quality of the【C4】______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【C6】______. Although most of these claims are not supported by scientific【C7】______. the preponderance (优势) of written material advancing such claims makes it difficult for the general public to distinguish fact【C8】______fiction. As a result, claims that eating a diet consisting entirely of organically grown foods【C9】______or cures disease or provides other benefits to health have become【C10】______advertised and form the basis for folklore(民俗).
    【C11】______daily the public is surrounded by claims for "no aging" diets, new vitamins, and other wonder foods. Many an unfounded report【C12】______that natural vitamins are superior 【C13】______synthetic ones, that fertilized eggs excel unfertilized eggs nutritionally, and the【C14】______.
    One thing that most organically grown food products seem to have in【C15】______is that they cost more than conventionally grown foods. But in many【C16】______consumers are misled if they believe that organic foods can【C17】______health and provide better nutritional quality than conventionally grown foods. 【C18】______there is a real cause for concern if consumers, 【C19】______those with limited incomes, distrust the regular food supply and buy merely expensive organic foods【C20】______.
【C17】
选项 A、sustain
B、retain
C、maintain
D、entertain
答案C
解析 语义衔接题。[D]entertain“招待，款待”明显不符合语境，首先排除。结合语境，此处应该 是说保持健康状态，[C]maintain表示维持已有的水平、标准，符合此处语境，故为答案。[A]sustain常用来指维持(某人／某物)的生命或存在；[B]retain常用来指保留或拥有某物。
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大学英语四级

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