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  3. An Interesting Phenomenon Animals seem to have the sense to eat when they are hungry and they do not eat more than their bod

An Interesting Phenomenon Animals seem to have the sense to eat when they are hungry and they do not eat more than their bod

admin2012-07-30  37
问题                       An Interesting Phenomenon
    Animals seem to have the sense to eat when they are hungry and they do not eat more than their bodies need. It has been demonstrated that rats will, when given a choice over a period of time, prefer water with vitamins to water without vitamins even though there is no difference in taste or smell between the two water bottles. When a fragrant flavor was added to the vitamin-enriched fluid, the rats did seem to develop a taste for it and kept drinking it, even after the vitamins were switched to the clear water. In time, however, they broke the habit and went back to where the necessary vitamins were.
    In a classic experiment, babies of 6 to 12 months old were placed in a cafeteria feeding arrangement, with a wide selection of baby food before them. They were given whatever food they pointed to or appeared interested in. We are told that at first they showed some unusual eating patterns, but that over a period of time they managed to select well-balanced diet.
    So, in selecting food, rats and babies do seem to know and act on what’s best for them. Apparently, there is a kind of "body wisdom", which humans soon lose. Most of us do not eat as wisely as we could. Many of our food preferences are culturally determined and influenced by long-established habits. Some people eat fox, dog and blackbirds, while we eat cows and pigs. So what people eat and how much they eat seems to be greatly influenced by what is going on around them.
The author implied in the passage that most of us______.
选项 A、eat a balanced diet
B、choose the food that is of nutrition
C、have the habits influenced by the surroundings
D、like to eat the food with a fragrant flavor
答案C
解析 根据上下文，我们可以知道，文章中并没有提到：“大多数人都有合理的饮食；选择有营养的食物以及喜欢有香味的食品。”因此A、B、D都是错误的。但是文章的最后一句话说：“What people eat and how much they eat seems to be greatly influenced by what is going on around them．”因此可以断定：“我们的饮食习惯受周围环境的影响。”C是正确答案。
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