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Take a look inside a high school classro...

    Take a look inside a high school classroom. You will most likely find a teacher at the front of the class and students sitting at their desks. Yet, look closer, and you might notice a familiar scene: many of these students are not paying attention. Instead, they are dozing off (打盹) or even completely asleep.

Today, the majority of high school students are not getting enough sleep. This lack (缺乏) of sleep is a serious problem, especially as students are doing more than ever with their time. They come to school early, spend hours listening to teachers and taking tests, and come home to be faced with even more work. And the homework load these days is not light; teachers give hours worth of homework each night.

Most kids need at least nine hours of sleep per night in order to function properly. Yet the period of this nine hours shifts as a child gets older. After puberty (青春期), the body’s internal clock changes so that it is difficult for teens to fall asleep before 11 p.m. So even if a student falls asleep at eleven, they would need to sleep until at least 8 a.m. to get a full night’s sleep. Considering the time at which most high schools in this country begin, those nine hours are clearly being shortened. Few high schools start after 8 a.m.

Howeverthere are schools that have paid attention to this research and delayed the start of their school day. In schools where the start time is after 8:30 in the morning, the teachers believe that there has been a real change in their students. They note that the students miss class less, pay more attention in class, perform better in class, and report lower levels of depression (沮丧). The researchers of these studies say that the results are quite important and that more schools should consider delaying their start time of their school day.

1.The second paragraph mainly discusses _____ .

A.why high school students should get more sleep

B.The life of high school students at present

C.why high school students feel sleepy in the classroom

D.how to lighten high school students’ homework load

2.The underlined word “shifts” in Paragraph 3 probably means“______”.

A.arrives B.reduces

C.increases D.changes

3.How do the teachers feel about the results from delaying their school day?

A.Disappointed. B.Satisfied.

C.Puzzled. D.Surprised.

 

1.C 2.D 3.B 【解析】 本文介绍了现今高中生课业负担重,家庭作业多,导致学生睡眠不足而课上犯困、精力不集中的现象,因此学校应该减少课业,推迟上课时间,让学生能有足够的睡眠。 1.主旨大意题。根据第二段可知,现今学生们很早到学校,又在学校听讲、参加考试,放学到家后还要做很多家庭作业,这样学生们的睡眠时间就更少了,因此会在课堂上犯困打瞌睡。故第二段主要讨论的是学生课堂上犯困的原因。故选C。 2.词义猜测题。根据前句Most kids need at least nine hours of sleep per night in order to function properly.可知,大多数孩子每晚至少需要九个小时的睡眠。本句用Yet转折一下,故画线词所在句的意思为“然而随着孩子的长大,9小时的睡眠时间发生了改变”,故画线词意为“变化”。 故选D。 3.推理判断题。根据第四段中They note that the students miss class less, pay more attention in class, perform better in class,and report lower levels of depression(沮丧).可知,老师们注意到推迟上课后学生们旷课少,上课更专心,在课堂上表现得更好,抑郁程度更低。故可以推断出老师对这个结果是满意的。故选B。
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