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  3. Eating fruits and vegetables has proved helpful in preventing various chronic(慢性的)illnesses. Does that mean the more the better?

Eating fruits and vegetables has proved helpful in preventing various chronic(慢性的)illnesses. Does that mean the more the better?

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问题     Eating fruits and vegetables has proved helpful in preventing various chronic(慢性的)illnesses. Does that mean the more the better?
    The data from 16 studies were analyzed,【C1】______ more than 833,234 adults. The span of the studies【C2】______ from 5 to 26 years. 56,423 adults participating in the studies died. Overall, the more fruits and vegetables people【C3】______ , the less likely they were to have died during the study period. For every【C4】______ serving eaten, up to four a day, the chance of dying for any reason decreased by 5 percent. Those who ate four servings a day were 24 percent less【C5】______ to have died than those who ate none at all. However, eating five or more daily servings indicated no added【C6】______ . Higher consumption of fruits and vegetables also showed【C7】______ no effect on the probability of dying from cancer.
    Although the recommendation of the【C8】______ serving varies with age, health status and other factors, most adults are called for to fill half their plate with fruits and vegetables. The food pyramid(金字塔)model【C9】______ that adults eat three to five servings of vegetables and two to four servings of fruits daily.
    However, the study did not determine whether certain fruits or vegetables were more or less beneficial than others. It indeed inferred that there’s a(n) 【C10】______ to how much fruit and vegetables are good for you.
A)additional I)investing
B)annual J)involving
C)benefit K)likely
D)boundary L)limit
E)consumed M)probable
F)daily N)ranged
G)essentially O)suggested
H)financially
【C8】
选项
答案F
解析 空格位于定冠词the和名词serving之间，故应填入形容词修饰serving。联系上下文可知，建议每天食用的水果和蔬菜的份数因年龄、健康状况和其他因素而异，故空格处填入daily“每天的”，与第二段的a day和本段末尾的daily前后呼应。备选的形容词annual“每年的”不符合文意，故排除。
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大学英语四级

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