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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
admin
2012-09-19
31
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. "
【C17】
选项
A、enlarge
B、shorten
C、extend
D、reduce
答案
B
解析
动词辨义题。该句意在表达“午睡能够使程序性记忆在较短时间内克服干扰和遗忘。”之所以说能够在较短的时间内,是因为前文研究成果证明午睡对记忆效果有促进作用。故此处应选择shorten the time“缩短时问”。enlarge意为“扩大,扩展”,不用于与时间搭配;extend意为“延伸,扩展”,与句意相悖; reduce意为“缩减,减少”,一般不与时间连用,故都排除。
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大学英语四级
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