How to eat healthfully can be espeically 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.” 12.From the paragraph we know that working women . think cooking is especially complicated do not share the same views with registered dietitians are busy and not interested in cooking D.  are likely to eat healthfully 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 orangecolored sugar water D.it produces nothing but calories 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 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 subsitutions for food 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 valuew. 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