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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
【C1】
选项
答案J
解析 空格位于一个完整的句子之后，且位于名词adults之前，故应填入现在分词支配adults，作伴随状语。该空前面提到，分析了从16项研究中得到的数据，所以空格所在句应是在讲这16项研究涉及833 234位成年人，故空格处应填入involving“涉及”。备选的现在分词investing“投资”不符合文意，故排除。
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大学英语四级

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