2. 外语
  3. A unique laboratory at the University of Chicago is busy only at night. It is a dream【C1】______where researchers are at work stu

A unique laboratory at the University of Chicago is busy only at night. It is a dream【C1】______where researchers are at work stu

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问题     A unique laboratory at the University of Chicago is busy only at night. It is a dream【C1】______where researchers are at work studying dreamers. Their findings have revealed that everyone dreams from three to seven times a night,【C2】______ in ordinary life a person may remember none or only one of his dreams.
    While the【C3】______ sleep, special machines record their brain waves and eye movements as well as the body movements that【C4】______ the end of a dream. Surprisingly, all subjects【C5】______ soundly.
    Observers report that a person usually fidgets before a dream. Once the dream has started, his body relaxed and his eyes【C6】______ more active, as if the curtain had gone on a show. As soon as the machine【C7】______ that the dream is over, a buzzer wakens the sleeper. He sits up, records his dream, and goes back to sleep—perhaps to【C8】______ some more.
    Researchers have found that if the dreamer is【C9】______ immediately after his dream, he can usually recall the entire dream. If he is allowed to sleep even five more minutes his【C10】______ of the dream will have faded.
【C2】
选项 A、therefore
B、if
C、despite
D、although
答案D
解析 从上下文判断，本题应填入一个引导让步状语从句的连词，故D项although为正确答案。A项therefore表示因果关系，B项if表示条件关系，在此均不合题意。C项despite(尽管)虽然符合句意，但它是介词，不能引导状语从句，故不正确。
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