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  3. New research conducted by brain researcher Avi Karni of the University of Haifa in Israel explores the possibility that naps hel

New research conducted by brain researcher Avi Karni of the University of Haifa in Israel explores the possibility that naps hel

admin2012-09-19  84
问题     New research conducted by brain researcher Avi Karni of the University of Haifa in Israel explores the possibility that naps help lock in sometimes fleeting long-term memories. A 90-minute daytime【C1】______. might help the most, the study finds.
    "We still don’t know the【C2】______mechanism of the memory process that occurs during sleep, but the【C3】______of this research suggest it is possible to【C4】______up memory consolidation," Karni said.
    Long-term memory【C5】______to  memories that stay with us for years, such as "what" memories -- a car accident that happened yesterday -- or " how to " memories, such as one’s learned【C6】______to play the drums.
    Karni, who【C7】______the study in a recent issue of the journal Nature Neuroscience,【C8】______participants to learn a complex thumb-tapping sequence, then【C9】______the study subjects into two groups: one that【C10】______for an hour, and one that didn’t. The people who took an afternoon snooze showed【C11】______improvement in their performance by that evening.
    "After a night’s sleep the two groups were at the same【C12】______, but the group that slept in the afternoon【C13】______much faster than the group that stayed【C14】______," Karni said.
【C15】______, the study also showed just how much【C16】______a 90-minute nap could help lock in long-term memories.
    "Daytime sleep can【C17】______the time ’how to’ memory becomes【C18】______to interference and forgetting," Karnl said. "【C19】______of 6 to 8 hours, the brain【C20】______the memory during the 90-minute nap. "
【C10】
选项 A、worked
B、napped
C、stayed
D、walked
答案B
解析 动词辨义题。通篇都在介绍白灭小睡对于记忆的影响。故此处实验也该是要证明小睡与不睡对记忆效果的影响。所以应选择nap“小睡，打盹”。整句意为“Karni将研究对象分成两组：一组小睡一小时，另一组不睡”。work“工作”，文章并未研究工作对对忆的影响，可排除；stay“停留，留下”，此处并不是说让一部分人留在某个地方，另一部分离开，不符合文意；walk“散步”对记忆的影响也不是文章讨论的内容，可排除。
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大学英语四级

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