The author gives substance to the passage through the use of_________

成人英语三级

单选题The author gives substance to the passage through the use of__________.

A．interviews with authorities in the field of water controls
B．definitions which clarify important terms
C．opinions and personal observations
D．strong arguments and persuasions

参考答案：C进入在线模考

逻辑推断题。从全文来看，作者只是在表达个人的观点以及陈述个人观察的结果，并没有采访专家；也不是在争论驳斥，劝服他人；更不是在界定一个重要的术语。故答案为C。

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1根据下面资料，回答题
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．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

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2According 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.

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3Which 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.

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