成人英语三级

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 too 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, ounce for ounce, 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.

1. The first paragraph implies that many people __________.

A. are well informed about nutrition

B. don’t care about nutrition

C. have much knowledge of nutrition

D. have incorrect ideas about nutrition

2. According to paragraph 2, which is NOT true about nutrition?

A. Overcooking destroys many nutrients.

B. It makes no difference how you prepare vegetables.

C. Both fresh and packaged vegetables are nutritious.

D. Vitamins in vegetable could be lost during cooking.

3. Which is a correct attitude towards starchy food?

A. Starchy foods are unnecessary in a balanced diet.

B. Bread and steak have the same amount of calories per ounce.

C. Valuable nutrients could be found in starchy foods.

D. Starchy foods include only peas, potatoes, bread and rice.

4. The description of “overfilling your gas tank” shows why __________.

A. one should take as much vitamins as possible

B. more than enough vitamins is unnecessary

C. vitamins cost as much as gas

D. doctors recommend allowance of vitamins

5. A good title for this article would be__________.

A. Tips of Losing Weight Effectively

B. Test Your Nutrition IQ

C. Nutrition: A Complex Branch of Science

D. Misleading Nutrition Concepts

参考答案：

1. D 2. B 3. C 4. B 5. B

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