(每题1分，共8分) 1、 阅读下面这篇短文，从所给的6个选项中为第2～5段每段选择1个正确的小标题；
New Conceptions about Diet
1 Increasingly over the past ten years, people—especially young people—have become aware of the need to change their eating habits, because much of the food they eat, particularly processed foods, is not good for the health. Consequently, there has been a growing interest in natural foods:foods which do not contain chemical additives(添加剂)and which have not been affected by chemical fertilizers widely used in farming today.
2 Natural foods, for example, are vegetables, fruit and grain 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 matter, 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 goods grown in commercial farming areas.
3 Natural foods also include animals which have been allowed to feed and move freely in a healthy environment. Compare this with what happens in the mass production of poultry:there are mech?anized farms, for example, where thousands of chickens live crowded together in one building and are fed on food which is little better than rubbish. Chickens kept in this way are not only tasteless as food they also produce eggs which lack important vitamins.
4 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 nonessential food!In large quantities, it can actually be harmful, and it does seem to be addictive(上瘾的)：the quantity we use has grown steadily over the last two centuries. There are no vitamins in it, no minerals and no fibre.
5 It is significant that nowadays fibre is considered to be an important part of a healthy diet. In white bread, for example, the fibre has been removed. But it is present in unrefined flour and of course in vegetables. It is interesting to note that in countries where the national diet contains large quantities of unrefined flour and vegetables certain diseases are comparatively rare. Hence the emphasis is placed on the eating of whole?meal(粗面粉)bread and more vegetables by modern experts on “healthy eating”.

参考答案： The Foods Which Grow in Soil    

答案解析： The Foods Which Grow in Soil

1Paragraph 2
A The Change in People’s Eating Habits
B The Foods Which Grow in Soil
C The Foods Which Were Fed
D The Importance of Fiber
E Today’s Various Kinds of Foods
F Other Aspects of Healthy Eating