Ⅲ. Reading comprehension ( 30 points, 2 points each )
Passage one
Questions 21 to 25 are based on the following passage.
Sleep is generally divided into five stages. In the first two stages, a person sinks into a light sleep ; muscles relax, breathing and pulse rate slow down. In the third and fourth stages of deep sleep, a sleeper can only be awakened by a loud and unusual noise; the heart beats slowly and blood pressure drops. It is in the fifth stage that the body regenerates( 恢復(fù)體力等) and a person dreams. Dreams are an important part of healthy sleep. They help the brain adapt and respond to life experience. The brain is almost as active at this time as when a person is awake.
The secrets of a good night’s sleep are a good mattress(床墊) and reasonable eating habits. A heavy meal and too much wine will destroy a good night’s sleep. When buying a mattress, you should test it to make sure that when lying on it you are comfortable and your body sinks into a side position easily. The mattress should be of the right size----20 to 30 centimeters longer than the sleeper’s stretched-out body and at least 95 centimeters wide.
A comfortable bed and a slightly darkened bedroom are important to a good sleep, too. It is true that a good night’s sleep must be long, deep and with do disturbance, so that both the brain and the body will regenerate during sleep. Therefore., the bed should be placed at least 60 centimeters away from a window. Furthermore, if you feel hungry before bedtime, have a little milk.
21.according to the passage, deep sleep occurs in _________.
A. the first and second stages
B. the second and third stages
C. the third and fourth stages
D. the fourth and fifth stages
22. In the fifth stage of sleep, the brain becomes active and _______.
A.muscles relax
B.pulse rate slows down
C.the heart beats slowly
D.the body becomes fresh again
23. To have a good sleep, a mattress should be at least ________.
A.30 centimeters long
B.50 centimeters long
C.60 centimeters wide
D.95 centimeters wide
24. According to the passage, all the following factors are important to a good night’s sleep EXCEPT ________.
A.a light meal
B.a very darkened room
C.a comfortable bed
D.a right-sized mattress
25. The passage is mainly about _______.
A.the importance of the bedroom
B.the importance of a good mattress
C.the secrets for a good night’s sleep
D.the time required for a good sleep
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