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  3. When it comes to eating smart for your heart, stop thinking about short-term fixes and simplify life with a straightforward appr

When it comes to eating smart for your heart, stop thinking about short-term fixes and simplify life with a straightforward appr

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问题     When it comes to eating smart for your heart, stop thinking about short-term fixes and simplify life with a straightforward approach that will serve you well for years to come.
    Smart eating goes beyond analyzing every bite you lift 【B1】______ your mouth. "In the past we used to believe that 【B2】______ amounts of individual nutrients were the 【B3】______ to good health," Linda Van Horn, chair of the American Heart Association’s Nutrition Committee. "But now we have a 【B4】______ understanding of healthy eating and the kinds of food necessary to 【B5】______ not only heart disease but disease 【B6】______ general," she adds.
    Scientists now 【B7】______ on the broader picture of the balance of food eaten 【B8】______ several days or a week【B9】______than on the number of milligrams of this or that【B10】______at each meal. Fruits, vegetables and whole grains, for example, provide nutrients and plant-based compounds【B11】______for good health. "The more we learn, the more【B12】______we are by the wealth of essential substances they【B13】______," Van Horn continues, "and how they【B14】______with each other to keep us healthy."
    You’ll automatically be【B15】______the right heart-healthy track if vegetables, fruits and whole grains make【B16】______three quarters of the food on your dinner plate.【B17】______in the remaining one quarter with lean meat or chicken, fish or eggs.
    The foods you choose to eat as well as those you choose to【B18】______clearly contribute to your well-being.
    Without a【B19】______, each of the small decisions you make in this realm can make a big【B20】______on your health in the years to come.
【B13】
选项 A、retain
B、contain
C、attain
D、maintain
答案B
解析 考查动词辨析。这里的they表示食物，结合后面的动词，构成定语从句，修饰“必备营养元素”，这里用B．contain“包含”才能准确达意，表示“食物包含必备营养元素”。retain意为“保持，保留”；attain意为“达到，获得”；maintain意为“维持，主张”，均不符合题意。故选B。
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