2. 外语
  3. All of us eat everyday, but most of us don’t understand nutrition (营养). We often make mistakes in talking about good diet. F

All of us eat everyday, but most of us don’t understand nutrition (营养). We often make mistakes in talking about good diet. F

admin2008-12-15  34
问题     All of us eat everyday, but most of us don’t understand nutrition (营养). We often make mistakes in talking about good diet.
    For example, many people think that food, such as rice, bread and potatoes, will make one grow fat. In fact, those food are very good to one’s health. They are good sources of many vitamins (维他命). And in comparison with steak and beef, they contain less amount of calories.
    Some people don’t like canned or frozen vegetables, because they think fresh vegetables cooked at home are always better. This is again wrong. In fact, whether the vegetables are good or not depends more on how they are prepared. Overcooking, for example, destroys many good qualities of vegetables. Vegetables cooked in too much water can lose a large amount of vitamins.
    It is widely believed that extra vitamins provide more energy. But taking more than the body needs doesn’t make it function better.
    It is also wrong to say that vegetables grown in poor, worn-out soil are lower in vitamins than vegetables grown in rich soil. The vitamins in our foods are in the plants themselves. They don’t come from the soil. However the minerals in a plant depend on the minerals in the soil.
    In short, there are many false ideas about nutrition. We need to correct them.
选项 A、nutrition
B、vitamins
C、vegetables
D、health
答案A
解析 主旨题。文章开篇就点出人们不懂营养，后面讲的维他命、蔬菜都是围绕营养展开的。所以[A]正确。
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