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  3. Getting a good night’s sleep has long been known to consolidate the day’s me

Getting a good night’s sleep has long been known to consolidate the day’s me

游客2024-02-10  35
问题     Getting a good night’s sleep has long been known to consolidate the day’s memories, moving them from short-term storage into long-term holding, but new research shows that it’s not automatic. A(n) 【C1】_____of sleep is helpful only【C2】_____you know a test is coming or, more 【C3】_____, if you explicitly tell yourself you’ll need the information in the【C4】_____And we can put it in other【C5】_____, don’t expect eight hours of shut-eye to help you on a pop quiz.
    In an elegant【C6】_____of experiments, scientists at the University of Lubeck in Germany tested memory by having【C7】_____learn 40 word pairs, or the【C8】_____of 15 cards in a concentration-type game plus a【C9】_____of finger taps. Sleep【C10】_____memory only in those who had been told they’d be tested 10 hours【C11】_____, not in those for whom the quiz came as a(n) 【C12】_____, says a report in the Journal of Neuroscience. "Merely expecting that a【C13】_____will be used in a test determines whether sleep【C14】_____its consolidation," says Liibeck’s Jan Born.
    The new research is the first to show how sleep【C15】_____its memory magic. EEGs(脑电图)found that the "test is coming" group spent【C16】_____time in deep, slow-wave sleep than did the group not【C17】_____a test. Slow electrical waves act【C18】_____a replay button on the recorder,【C19】_____the hippocampus(海 马状突起)to reactivate new memories and synchronizing the neocortex(大脑新皮层)so that it accepts them into long-term storage. This【C20】_____group also had more " sleep spindles(睡眠梭形波)" , bursts of electrical activity that prime networks in the cortex to store memories arriving from the hippocampus and to integrate them into existing knowledge, which makes retrieval easier. [br] 【C14】
选项 A、reduces
B、proceeds
C、benefits
D、projects
答案 C
解析 动词辨析题。后半旬要表达的是“睡眠——记忆力的巩固”，benefits“有利于”符合题意。reduces“减少”；proceeds“继续”；projects“预计，推断”。
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