英语
初中 · 八年级
人教版 · 7年级上册
选择题
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Read the passage and answer the question.
Sleep and Health
Scientists say that teenagers need eight to ten hours of sleep every night. However, a survey shows that more than 60 percent of middle school students sleep less than seven hours. Lack of sleep makes it hard to concentrate in class and may slow down growth. Experts advise students to put away mobile phones at least half an hour before bed.
Question: How many hours of sleep do teenagers need according to scientists?
Sleep and Health
Scientists say that teenagers need eight to ten hours of sleep every night. However, a survey shows that more than 60 percent of middle school students sleep less than seven hours. Lack of sleep makes it hard to concentrate in class and may slow down growth. Experts advise students to put away mobile phones at least half an hour before bed.
Question: How many hours of sleep do teenagers need according to scientists?
A. Less than seven hours.
B. More than twelve hours.
C. Eight to ten hours.
D. About six hours.