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  3. A unique laboratory at the University of Chicago is busy only at night. It i

A unique laboratory at the University of Chicago is busy only at night. It i

游客2025-03-20  17
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. [br] 【C4】
选项 A、signal
B、sign
C、sigh
D、assign
答案 A
解析 本题考查近义词辨别。A项signal意为："标志"，B项意为："用手势(或其他动作)表示"，C项意为："叹气"，D项意为："分配，布置"。从句意看，应选择A项。
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