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．Overcooki.ng,for ex-ample,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, bread and po-tatoes 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.
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
对于营养你了解多少?美国食品药品管理局问了一些经常购买食品的人三个问题，如果你的想法和他们的回答相似，那么你对营养也有普遍的误解。看看下面的说法，把你的答案核对一下。它们是对的还是错的呢?
说法一：在家做的新鲜蔬菜永远都比罐装的或者冷冻的蔬菜有营养。错。营养更多取决于蔬菜的处理方式而不是取决于买得是否新鲜或者罐装与否。比如说，过度的烹饪就会破坏很多营养物质。用太多水煮出来的蔬菜也会流失掉很大一部分维生素。
说法二：在节食的时候，要避免诸如面包和土豆等淀粉类的食物。错。如果你不吃像豌豆、土豆、面包和大米之类的淀粉类食物，你就失去了维他命B、C和其他营养很好的来源。
另外，面包和土豆所含的热量比沙朗牛肉和烤牛排要少很多。
说法三：吃超过日常推荐量的维他命不会给你带来更多能量。对。大家普遍相信额外的维他命会提供更多能量。但是超过身体所需的量并不会让身体功能更好，就像把油箱加得过满并不会让你的车跑得更快一样。
如果你能正确回答上面的问题，那么按照现在的标准，对于食物和营养你暂时还是比较了解的。但是请记住，营养是一门复杂并且不断更新的学科，现在我们对营养的认识可能会随着新的发现而有所改变。
【答案详解】
逻辑推断题。第一段有这样的一句话，then you probably share some wide．spread misinformation about nutrition，可知对于营养的误解相当广泛，D说大多数人对营养有着不正确的认识，与原文相符，故选D。
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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.
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.
A．one should take as many vitamins as possible
B．more than enough vitamins are unnecessary
C．vitamins cost as much as gas
D．doctors recommend allowance of vitamins
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