备考2023年山东省烟台市成考专升本英语真题含答案
【备考2023年】山东省烟台市【成考专升本】英语真题(含答案)学校:________ 班级:________ 姓名:________ 考号:________一、阅读理解(10题)1.Research
【备考2023年】山东省烟台市【成考专升 本】英语真题(含答案) :________ :________ :________ :________ 学校班级姓名考号 (10) 一、阅读理解题 1.Researchers have found that REM(rapid eye movement)sleep is important to human beings. This type of sleep generally occurs four or five times during one night of sleep lasting five minutes to forty minutes for each occurrence. The deeper apersons sleep becomes, the longer the periods of rapid eye movement. There are physical changes in the body to show that aperson has changed from NREM(non-rapid eye movement)to REM sleep. Breathing becomes faster, the heart rate increases, and, as the name implies, the eyes begin to move quickly. Accompanying these physical changes in the body there is avery important characteristic of REM sleep. It is during REM sleep that a person dreams. According to the passage, how often does REM sleep occur in one night? A.Once. B.Twice. C.Four or five times. D.Forty times. 2. 5255 根据以上材料,回答~问题。 52 The announcernent is make_______ 第题 A.during the flight B.shortly before taking off C.soon after taking off D.just before landing

