2014年4月托福考试模拟试卷及答案(第四套)_第6页

　　Are organically growth foods the best food choices? The advantages claimed for

　　such foods over conventionally growth 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.

　　(5) 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

　　(10) 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,

　　(15) 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

　　(20) 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

　　According to the first paragraph. which of the following is true about the term "organic foods"?

　　(A) It is accepted by most nutritionists

　　(B) It has been used only in recent years.

　　(C) It has no fixed meaning.

　　(D) It is seldom used by consumers.