3．Advice to"sleep on it"could be well founded，scientists say．After a good night's sleep a problem that seemed impossible to solve the night before can often appear easier，although no evidence has proved this by now．But researchers at the University of Luebek in Germany have designed an experiment that shows a good night's sleep can improve insight（洞察力）and problem-solving．"If you have some newly acquired memories in your brain，sleep acts on these memories，restructures（重构）them，so that after sleep the insight into a problem which you could not solve before increases，"said Dr．Jan Bom，a neuroscientist，at the university．To test the theory，they taught volunteers two simple rules to help them put a string of numbers into a new order．There was also a third，hidden 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 remainders were forced to stay awake．Bom and his team noticed that the group that had slept after the training were twice as likely to figure out the third rule as the other group．"Sleep helped，"Bom said in a telephone interview．"The important thing is that you have to have a memory representation in your brain of the problem you want to solve and then you sleep，so it can act on the problem．"But Bom admitted that he and his team don't know how restructuring of memories occurs or what governs it or in which stage of sleep it works．Pierre Marquette and Pierre Ruby of the University of Liege in Belgium said the experimental evidence supports the suggestions that sleep can promote creative thinking．Although the role of sleep in human creativity will still be a mystery，the research gives people good reason to fully respect their periods of sleep，they added．
36．The underlined phrase"sleep on it"in the first line probably meansA．
A．to put something aside to be solved until the next day
B．to get as much sleep as possible
C．to go on sleeping without being disturbed
D．to sleep till you get up the next morning
37．Jan Bom and his team carried out the experiment throughA
A．comparison
B．interview
C．survey
D．imagination
38．It can be inferred from the passage thatC．
A．people should sleep so long as they have time
B．sleep is the only way to solve hard problems
C．people have various periods of sleep
D．people know how sleep restructures memories
39．What would be the best title for the passage？B
A．How Sleep Works
B．Sleep Helps Solve Problems
C．No Evidence，But Well Founded
D．Bom's Discovery On Sleep
40．Where is the passage most likely to have been taken from？D
A．A science fiction．
B．A book review．
C．An advertisement．
D．A newspaper．
分析 本文主要讲述了一个实验研究．实验结果显示了良好的睡眠可以提高人们的洞察力和有助于解决问题．虽然睡眠在人类创造力中的作用仍然是一个谜，但是我们应该尊重自己的睡眠时间．
解答 36．A 词义辨析题．根据第一段After a good night's sleep a problem that seemed impossible to solve the night before canoften appear easier，可知前一天不能解决的问题放到第二天就有可能解决了．由此推知，"sleep on it"的意思是"把某事放到第二天再解决"．故选A．
37．A细节理解题．根据第三段The researchers divided the volunteers into two groups，half were allowed to sleep after the training while the remainders were forced to stay awake．可知Jan Bom和他的团队通过两个小组的对比做了实验．故选A．
38．C理解推断题．根据最后一段the research gives people good reason to fully respect their periods of sleep，可知这个研究为人们充分尊重他们的睡眠时间提供了很好的理由．由此推知，人们有各种各样的睡眠时间．故选C．
39．B标题选择题．本文主要通过一个实验研究说明了良好的睡眠可以提高洞察力和解决问题．故选B．
40．D理解判断题．本文主要讲了一个实验研究及其结论．由此判断，这篇文章可以在报纸上看到．故选D．
点评 本文考察学生的理解推断能力，抓住文章的关键词，采用寻读的方法查找细节，能根据已知的结果推测导致结果的可能原因．
