【科学60秒】学校晚点上课，学生表现更好？_英语听力练习mp3下载-科学-沪江听力酷

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【科学60秒】学校晚点上课，学生表现更好？

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Teachers get ___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 ___2___ and Adolescent Medicine.
Beginning at adolescence, kids have what’s called a ___3___, 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 ___4___ 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 ___5___. Plus, the number of students who said they felt unhappy, depressed, annoyed or irritated dropped significantly.
Before the study, teachers, coaches and administrators 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.