SSS 2010-07-05
时间：2019-01-08 作者：英语课 分类：Scientific American(七)月
Teachers get exasperated 1 at students—they don’t pay attention, they’re sleepy, they have bad attitudes. But improvement could be a matter of timing—just start school later. That’s according to a study in the Archives of Pediatrics and Adolescent Medicine.
Beginning at adolescence 2, kids have what’s called a delayed sleep phase, where they start sleep later and sleep later in the morning. And they need plenty—about nine-and-a-quarter hours a night.
The researchers evaluated 201 Rhode Island high school students whose school pushed back its start time from 8 to 8:30. The kids completed a sleep habits survey before and after the time change.
After the delayed start, the percentage of students who said they got at least eight hours of sleep a night jumped from about 16 to 55 percent. Class attendance improved, and there were fewer visits to the health center for fatigue-related complaints. Plus, the number of students who said they felt unhappy, depressed 3, annoyed or irritated dropped significantly.
Before the study, teachers, coaches and administrators 4 all resisted the later start. After, nearly all voted to keep it in place. A half-hour change for happier, better students? Seems like a good time for all.
Thanks for the minute for Scientific American’s 60-Second Science. I’m Cynthia Graber
- We were exasperated at his ill behaviour. 我们对他的恶劣行为感到非常恼怒。
- Constant interruption of his work exasperated him. 对他工作不断的干扰使他恼怒。
- Adolescence is the process of going from childhood to maturity.青春期是从少年到成年的过渡期。
- The film is about the trials and tribulations of adolescence.这部电影讲述了青春期的麻烦和苦恼。
- When he was depressed,he felt utterly divorced from reality.他心情沮丧时就感到完全脱离了现实。
- His mother was depressed by the sad news.这个坏消息使他的母亲意志消沉。
- He had administrators under him but took the crucial decisions himself. 他手下有管理人员，但重要的决策仍由他自己来做。 来自辞典例句
- Administrators have their own methods of social intercourse. 办行政的人有他们的社交方式。 来自汉英文学 - 围城