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

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

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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 debated.【C2】_____of organic foods frequently claim that such products are safer and more【C3】_____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 excited by widespread 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 superiority ot 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 formed the basis for folklore.
    Almost daily the public is besieged(包围)by claims【C12】_____"no-aging" diets, new vitamins and other【C13】_____foods. There are numerous unsubstantiated(未经证实的)reports that【C14】_____vitamins arc superior to synthetic ones, that fertilized eggs are nutritionally 【C15】_____to 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 food 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.  
【C17】
选项 A、spend
B、cost
C、take
D、expend
答案B
解析 本题考查动词词义辨析。空格处句意为：大多数有机食品有一共同点。即它们比常规方式种植的食物——多。句中主语为they，即有机食品，故选B)项COSt"(使)花费(金钱，时间，劳力等)”。
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大学英语四级

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