公共英语PETS考试精选80篇背诵范文含翻译(五十六)
来源:优易学  2011-5-6 18:55:44   【优易学:中国教育考试门户网】   资料下载   外语书店

The Organic Food
  Are organically grown foods the best food choices? The advantages claimed for such foods over  conventionally grown and marketed food products are now being debated. Advocates of organic foods -- a term whose meaning varies 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 typical North American diet is a welcome development. However, 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 claims are not supported by scientific evidence, the preponderance of written material advancing such claims makes it difficult for the general public to separate fact from fiction. As a result, claims that eating a diet consisting entirely of organically grown foods prevents or cures disease or provides other benefits to health have become widely publicized and form the basis for folklore.
  Almost daily the public is besieged by claims for "no-aging" diets, new vitamins and other wonder foods. There are numerous unsubstantiated reports that natural vitamins are superior to synthetic  ones, that fertilized eggs are nutritionally superior to unfertilized eggs, that untreated grains are better than fumigated grains and the like.
  One thing that most organically grown food products seem to have in common is that they cost more than conventionally grown foods. But in many cases consumers are misled 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 limited incomes, distrust the regular food supply and buy only expensive organic foods instead.

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