2. 外语
  3. Scientists say they now have proof to support the old-fashioned advice that it’s best to sleep on a problem. They say sleep stre

Scientists say they now have proof to support the old-fashioned advice that it’s best to sleep on a problem. They say sleep stre

admin2012-04-07  56
问题     Scientists say they now have proof to support the old-fashioned advice that it’s best to sleep on a problem. They say sleep strengthens the memory and helps the brain organize the masses of information we receive each day.
   Lead researcher Bob Stickgold at the Harvard Medical School said, "Sleep helps us draw rules from our experiences. It’s like knowing the difference between dogs and cats, even if it’s hard to explain. "
   The US research team studied how well students remembered connections between words and symbols (象征), reports New Scientist. They compared how the students performed if they had had a sleep between seeing the words and having the test, and if they had not slept. They found that people were better able to remember lists of related words after a night’s sleep than after the same time spent awake during the day. They also found it easier to remember themes (主题) that the words had in common. But they forgot around one in four more themes if they had been awake. Prof. John Groeger, of Surrey University’s Sleep Research Centre, said, "People have been trying for years to find out what the purpose of sleep is, as we know that only certain parts of it have a restorative (有助恢复的) value. "   “We form and store huge numbers of experiences in the head every day, and sleep seems to be the way the brain deals with it all."
Which of the following may be easier to remember?
选项 A、Themes learned right before the test.
B、Rules from personal experiences.
C、Words learnt before a good sleep.
D、Ideas stored together in the brain.
答案C
解析 分析推理题。短文第三段后半部分说明了研究的结果。其中第三、四、五句指出，睡一个晚上的觉后，学生们能更好地记住一些相关的单词，而拥有共同主题的那些单词则更容易记住。由于短文主旨就是睡眠的好处，故将这几句与选项对照后可知，正确答案是[C]。其余三项中，[A]属于用文中的个别词汇发挥而成，而[B]、[D]两项都属于原文没有提及的内容。
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