2. 外语
  3. Apples have been as not only a delicious fruit, but also as an effective way to improve your health. Research suggests that eati

Apples have been as not only a delicious fruit, but also as an effective way to improve your health. Research suggests that eati

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问题     Apples have been as not only a delicious fruit, but also as an effective way to improve your health. Research suggests that eating apples can【C1】______your heart, your teeth, and your energy level. Eating a higher amount of fruits and vegetables in general has also been【C2】______with a lower risk for【C3】______diseases including coronary heart disease(冠心病), asthma(哮喘), diabetes, cancer and perhaps even Alzheimer’s disease(阿尔茨海默症).
    So, is it true that apples are a super fruit? Do they impact the health and【C4】______of your brain? The research is limited, but it does show some promise.
    One study published in the Journal of Alzheimer’s Disease【C5】______older mice who were fed a deficient diet. These mice then demonstrated a(n) 【C6】______in their cognitive ability shown by poor performance in navigating a maze. However, after apple juice was added to their drinking water for a month, their memory was restored and they were able to efficiently navigate the maze again.
A second study found that the actual brain structure was affected in mice whose drinking water included apple juice. The mice’s brains were examined and found to contain a(n) 【C7】______level of beta amyloid proteinic(β淀粉状蛋白), as【C8】______to the brains of mice whose drinking water had not contained apple juice. The【C9】______and excess of this protein in the brain is one of the hallmarks of Alzheimer’s disease.
    A third study tested the immediate effects of apples and spinach(菠菜)and found no change in the cognitive functioning of the【C10】______right after eating the foods. The study did not, however, measure if a sustained diet that included apples affected cognition or risk of dementia(痴呆)over time.
A)accompanying B)accumulation C)associated D)benefit
E)chronic F)collection G)compared H)decline
I)decreased J)functioning K)involved L)members
M)opposed N)participants O)prolonged
【C7】
选项
答案I
解析 空格前为冠同a(n)，后为名词level，故空格应填入形容词。该句上文指出，第二项研究发现喝了加有苹果汁的水会影响老鼠的实际大脑结构。根据对文章的理解得知“饮用加苹果汁的水的老鼠，其大脑所含β-脑内淀粉样蛋白少于不加苹果汁的水的老鼠”。所以此空应填入I)decreased。
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