2. 职称英语
  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2023-07-09  15
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] 【C2】
选项 A、if
B、before
C、after
D、because
答案 A
解析 连词辨析题。这里表达的是前提条件，因此选择一个表示条件的连词，if“如果”符合题意。
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