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  3. How much do you know about nutrition? If your knowledge is similar to that of food shoppers who answered three surveys for the U

How much do you know about nutrition? If your knowledge is similar to that of food shoppers who answered three surveys for the U

admin2018-01-16  43
问题    How much do you know about nutrition? If your knowledge is similar to that of food shoppers who answered three surveys for the U. S. Food and Drug Administration, then you probably share some wide-spread misinformation about nutrition. Check your answers to the following statements. Is it true or false?
   Statement 1: Fresh vegetables cooked at home are always more nutritious than canned or frozen vegetables. False. The nutritional difference depends more on how vegetables are handled or prepared than in whether they are bought fresh or packaged. Overcooking, for example, destroys many nutrients. Vegetables cooked in Loo much water can lose a significant amount of vitamins.
   Statement 2: When dieting, avoid starchy(淀粉类)foods, such as bread or potatoes. False. If you cut out starchy foods, such as peas, potatoes, bread, and rice, you cut out very good sources of several B vitamins, Vitamin C, and other nutrients. Moreover, bread and potatoes have fewer calories than sirloin steak and roast beef.
   Statement 3: Taking extra vitamins beyond the recommended daily allowances won’ t give you more energy. True. It’s widely believed that extra vitamins provide more energy. But taking more than the body needs doesn’t make it function better, just as overfilling your gas tank doesn’t make your car run faster.
   If you answered these questions correctly, you can for the time being consider yourself well informed about food and nutrition by today’s standards. But remember that nutrition is a complex and growing science and that today’s beliefs may be changed as new information becomes available.  
A good title for this article would be______.
选项 A、Tips of Losing Weight Effectively
B、Test Your Nutrition IQ
C、Nutrition: A Complex Branch of Science
D、Misleading Nutrition Concepts
答案B
解析 主旨概括题。文章的内容都与营养相关，所以A排除。本文只是对营养学进行简单介绍，并没有涉及高深的研究，所以C也不对。文章中讲了三条普遍的说法，但并不是所有的都是错的，所以选项D中的misleading也不对，D排除。B选项中的Nutrition IQ指对营养的了解，文章也是测试人们对于营养的了解有多少，故与原文意义一致，为正确选项。
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