19.According to the passage, moderate drinking　 　　　　　.

A. is recommended by most doctors for heart patients　 B. should be allowed on prescription

C. is still not medically advisable　　　　　　　　　 D. is not related to liver problems

18.Experiments showed that nondrinkers had .

A. larger amounts of good cholesterol　　 B. smaller amounts of good cholesterol

C. higher blood pressure　　　　　　　　 D. lower blood pressure

17.The medical article quoted in the first paragraph indicates　 　　　　　.

A.　　 the way in which alcohol can help the heart　　　

B.　　　 how a couple of cocktails daily can stop heart problems

C.　　　 why alcoholic drinks are dangerous to one’s health　

D.　　 that reports on the advantages of alcohol were misled

16.By “if the fuel isn’t there, the spark is useless”, the author means　 　　　　　.

A. carbohydrates, protein and fat are enough to support a human life

B. vitamins and minerals are virtually of no value

C. carbohydrates, protein and fat are as important as vitamins and minerals

D. without carbohydrates, protein and fat, vitamins and minerals are of no use

E

Does a drink a day keep heart attacks away? Over the past 20 years, numerous studies have found that moderate alcohol consumption, say, one or two beers, glasses of wine or cocktails daily helps to prevent coronary heart disease. Last week a report in the New England Journal of Medicine added strong new evidence in support of that theory. More important, the work provided the first solid indication of how alcohol works to protect the heart.

In the study, researchers from Boston’s Brigham and Women’s Hospital and Harvard Medical School compared the drinking habits of 340 men and women who had suffered recent heart attack with those of healthy people of the same age and sex. The scientists found that people who sip one to three drinks a day are about half as likely to suffer heart attacks as nondrinkers are. The apparent source of the protection: those who drank alcohol had higher blood levels of high-density lipoproteins, the so-called good cholesterol, which is known to prevent heart disease.

As evidence has mounted, some doctors have begun recommending a daily drink for patients of heart diseases. But most physicians are not ready to recommend a regular happy hour for everyone. The risks of teetotalling(绝对戒酒) are nothing compared with the dangers of too much alcohol, including high blood pressure, strokes and liver troubles-not to mention violent behaviour and traffic accidents. Moreover, some studies suggest that even　 moderate drinking may increase the incidence of breast and colon cancer. Until there is evidence that the benefits of a daily dose of alcohol outweigh the risks, most people won’t be able to take a doctor’s prescription to the neighbourhood bar or liquor store.

15.Many women take it for granted, according to passage that　 　　　　　.

A. a balanced diet can result in being fat　　　 B. staying thin and healthy are both possible

C. lack of variety in diets leads to staying thin　 D. vitamins are some kind of substitutions for food

14.In Paragraph 4, “a fruitless search” means　 　　　　　.

A. an effort with no results　　　　　　　 B. a search for a diet without fruits

C. a research on fruitless diet　　　　　　 D. a diet serving as medicine

13.Orange juice is different from orange drink in that　 　　　　　.

A. it contains only a small percentage of real juice

B. it is natural, nutritious and prepared from real oranges

C. it is largely orange colored sugar water　　 D. it produces nothing but calories

12.From the paragraph we know that working women . 　　　　　

A. think cooking is especially complicated　 B. do not share the same views with registered dietitians

C. are busy and not interested in cooking　　　　 D. are likely to eat healthfully

11.Why do “both explanations” (Para. 3) worry Asian Americans?

A. They are afraid that they will again be isolated from American society in general.

B. People will think that Asian students rely on their parents for success.

C. Asian Americans will be a threat to other minorities.

D. American academic achievements have taken on too strong an Asian character.

D

How to eat healthfully can be especially complex for working women who often have neither the desire nor the time to cook for themselves (or for anyone else). Registered dietitian(营养专家)Barhara Morrissey suggests that a few simple rules can help.

“Go for nutrient-dense foods,” she suggests, “foods that contain a multiple of nutrients. For example, select whole wheat bread as a breakfast food, rather than coffee cake. Or drink orange juice rather than orange drink, which contains only a small percentage of real juice-the rest is largely colored sugar water. You just can’t compare the value of these foods, the nutrient-dense ones are so superior,” she emphasizes.

Morrissey believes that variety is not only the spice of life-it’s the foundation of a healthful diet. Diets which are based on one or two foods are not only virtually impossible to keep up the strength, they can be very harmful, she says, because nutrients aren’t supplied in sufficient amounts or balance.

According to Morrissey, trying to find a diet that can cure your illnesses, or make you superwoman is a fruitless search. As women, many of us are too concerned with staying thin, she says, and we believe that vitamins are some kind of magic cure to replace food.

“We need carbohydrates, protein and fat-they are like the wood in the fireplace. The vitamins and minerals are like the match, the spark, for the fuel,” she explains. “We need them all, but in a very different proportions. And if the fuel isn’t there, the spark is useless.”