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  3. Advice to "sleep on it" could be well founded, scientists say. After a good

Advice to "sleep on it" could be well founded, scientists say. After a good

游客2024-02-10  11
问题     Advice to "sleep on it" could be well founded, scientists say. After a good night’s sleep, a problem that seemed insurmountable(不能克服的)the night before can often appear more【C1】______. although the evidence until now has been anecdotal(轶事的).
    But researchers at the University of Luebek in Germany have designed an experiment that shows a good night’s sleep can【C2】______insight and problem-solving. Dr. Jan Born, a neuroscientist at the university, and his team taught volunteers two simple rules to help them【C3】______a string of numbers into a new order. There was also a third,【C4】______rule, which could help them increase their speed in solving the problem. The researchers divided the volunteers into two groups: half were allowed to sleep after the training while the【C5】______were forced to stay awake. They noticed that the group that had slept after the training were twice as【C6】______to figure out the third rule as the other group.
    "You have a memory representation in your brain of the problem you want to solve, and then you sleep. Sleep can act on the problem," Born said in a telephone interview. But he also admitted that how restructuring of memories occurs or what governs it is still【C7】______.
    Other scientists say the【C8】______evidence supports the anecdotal suggestions that sleep can stimulate creative thinking.
    Although the role of sleep in human creativity will【C9】______be a mystery, the research gives people good reason to【C10】______respect their periods of sleep.
A)hidden I)uninvented
B)experimental J)still
C)fully K)unknown
D)remainder L)reminder
E)strengthen M)convert
F)manageable N)improve
G)complex O)likely
H)prevent [br] 【C7】
选项
答案 K
解析 空前的is still表明，本空应填一形容词。上句Born提到睡眠会解决睡觉前的问题，而本句用了But，意思发生转折，表明Born并不知道为什么睡眠会解决问题，这与末段所说的a mystery是同一个意思，故答案为K)unknown“未知的”。G)complex指“复杂、难懂的”，并非不可知，与mystery所包含的“目前尚不可知”的意思相矛盾，故排除。invent指的是发明、创造以前没有的东西，不能用来指思维和记忆，故排除I)uninvented“未发明的”。
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