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  3. New research conducted by brain researcher Avi Karni of the University of Ha

New research conducted by brain researcher Avi Karni of the University of Ha

游客2024-02-19  26
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. " [br] 【C13】
选项 A、improved
B、impoverished
C、impressed
D、imposed
答案 A
解析 动词辨义题。前文说到睡了一夜后，两组研究对象记忆水平相当。但此处话锋一转，用but引导一个转折，即“午睡小组要比未午睡小组进步得快得多”。故此处应选择improve“改善，提高”。imply意为“说明，暗示”；impress意为“给……以深刻的印象”；impose意为“强加于”。四个词词形相近，但意思上有较大差别，熟记即可判断准确。
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