A special lab at the University of Chicago is busy only 【26】______ . It is a dream 【27】___
___ where researchers are at work 【28】______ dreamers. Their findings have concluded that 【29】______ dreams from three to seven times each night, 【30】______ in ordinary life a person may 【31】______ none or only one of his dreams.
While the 【32】______ sleep, special machines 【33】______ their brain waves and eye movements as well as the body movements that 【34】______ the end of a dream. Surprisingly, all subjects 【35】______ soundly.
【36】______ say that a person usually fidgets (烦躁) before a dream. 【37】______ the dream has started, his body relaxes and his eyes 【38】______ more active, as if the curtain 【39】______ on a show. When the machine 【40】______ that the dream is over, a buzzer wakes the 【41】______ . He sits up, records his dream, and goes back to sleep—perhaps to 【42】______ some more.
Researchers have found that if the dreamer, is 【43】______ immediately after his dream, he can usually recall the entire dream. If he is allowed to sleep even 【44】______ his 【45】______ of the dream will have faded. That's why most people have many dreams at night, but forget most of them in the morning.
【26】
A.at noon
B.in the morning
C.at night
D.in spring