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  3. Researchers have established that when people are mentally engaged, biochemical changes occur in the brain that allow it to act

Researchers have established that when people are mentally engaged, biochemical changes occur in the brain that allow it to act

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问题     Researchers have established that when people are mentally engaged, biochemical changes occur in the brain that allow it to act more effectively in cognitive (认知的) areas 【C1】_____ attention and memory.
    This is true regardless of age.
    People will be alert and receptive 【C2】_____ they are faced with information that 【C3】_____ them to think about things they are interested in. And someone 【C4】_____ a history of doing more 【C5】_____ than less will go into old age more cognitively 【C6】_____ than someone who has not had an active mind.
    Many experts are so 【C7】_____ of the benefits of challenging the brain 【C8】_____ they are putting the theory to 【C9】_____ in their own lives. "The idea is not 【C10】_____ to learn to memorize enormous amounts of information," says James Fozard, associate director of the National Institute 【C11】_____ Aging.
    "Most of us don’t need that kind of skill. Such specific 【C12】_____ is of less interest than being able to maintain mental 【C13】_____. " Fozard and others say they challenge their brains work.
    Gene Cohen, acting director of the same institute, 【C14】_____ that people in their old age should 【C15】_____ in mental and physical activities 【C16】_____ as well as in groups. Cohen says that we are frequently advised to keep physically active as we age, 【C17】_____ older people need to keep mentally active as well. Those who do are more 【C18】_____ to maintain their intellectual abilities and to be generally happier and better 【C19】_____. "The point is, you need to do 【C20】_____ ." Cohen says, "Intellectual activity actually influences brain-cell health and size."
【C19】
选项 A、adapted
B、fitted
C、prepared
D、adjusted
答案D
解析 考查词义辨析。此处表示“这样做的人更有可能保持其智力水平，通常更加愉快，能更好地 ______ ”。adapted“适合的，改编的”，fitted“配备的”，prepared“事先准备好的”，adjusted“(调整……以)适应的”，最符合文意的是adjusted，表示“调节自己的生活”，选D。
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