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  3. 【F1】Increasingly, over the past ten years, people—especially young people—have become a-ware of the need to change their eating

【F1】Increasingly, over the past ten years, people—especially young people—have become a-ware of the need to change their eating

admin2010-12-05  100
问题      【F1】Increasingly, over the past ten years, people—especially young people—have become a-ware of the need to change their eating habits, because much of the food they eat, particularly junk food, is not good for their health. Consequently, there has been a growing interest in natural foods; foods which do not contain chemical additives and which have not been affected by chemical fertilizers, widely used in farming today.
     【F2】Natural foods, for example, are vegetables, fruit9 and grains which have been grown in soil that is rich in organic matter. In simple terms, this means that the soil has been nourished by unused vegetable matters, which provides it with essential vitamins and minerals. This in itself is a natural process compared with the use of chemicals and fertilizers, the main purpose of which is to increase the amount—but not the quality—of foods grown in commercial farming areas.
    Natural foods also include animals which have been allowed to feed and move freely in healthy pastures. Compare this with what happens in the mass production of poultry: there are battery farms, for example, where thousands of chickens live crowded together in one building and are fed on food which is little better than rubbish. 【F3】Chickens kept in this way are not only tasteless as food; they also produce eggs which lack important vitamins.
     【F4】There are other aspects of healthy eating which are now receiving increasing attention from experts on diet. Take, for example, the question of sugar, This is actually a non-essential food! Although a natural alternative, such as honey, can be used to sweeten food if this is necessary, we can in fact do without it. It is not that sugar is harmful in itself. But it does seem to be an additive; the quantity we use has grown steadily over the last two centuries and in Britain today each person consumes an average of 200 pounds a year! 【F5】Yet all it does is Provide us with energy, in the form of calories. There are no vitamins in it, no minerals and no fiber.
【F4】
选项
答案健康饮食的其他方面现在也得到了饮食专家越来越多的关注。
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