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

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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.
【C1】

选项 A、conventional
B、traditional
C、formal
D、normal

答案A

解析 语义衔接题。空格前的such foods指的正是文章首句中提到的organically grown foods,本句是对两类食品的比较,所以所填词与organic形成语义上的反义复现关系,与organic goods相对应的应该是常规食品,选项A) conventional除了有“传统的,习惯的”的意思,还有“常规的,普通平凡的”的含义,这里选“conventional”取其第二层意思为好。选项B) traditional“传统的,惯例的”与“conventional”的第一层意思一样;选项C) formal“正式的”,指以适当或常规形式进行的;选项D) normal“正常的,正规的,标准的”。所以答案是A) 。
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