Does school start too early? Judging from the teenagers who yawn in class, it does. And those students aren’t just lazy. Scientific studies have shown that school does start too early for young students.

According to a series of studies done across the U.S., the later classes begin, the more academic performance improves. Boys and girls naturally stay up later and sleep in later. The trend begins around age 13 or 14 and peaks between 17 and 19.The teens also need more sleep in general, so forcing them to be up early for school cuts into their sleep time as well as their sleep rhythm, making them less ready to learn during those first-period classes.

Practice is proving the science. Hundreds of school districts in the U.S. have experimented with later start times and the academic performance of students has improved as a result. A study of 9,000 high school students in three states showed that grades in science, math, English and social studies all rose when school began at 8:35 or later. What’s more, attendance(出勤)goes up and student depression goes down.

The later school starts, the better the result, too. According to a study, delaying the opening bell from 7:30 a.m. to 8:30 a.m. paid off more than delaying only until 8:00 a.m. Students who get at least eight hours of sleep, and preferably nine, perform better than those who do not, so a greater delay raises the chances of achieving those numbers.

So, it turns out morning class is just too early for students to learn chemistry equations(方程式)or study an ancient poem. If you cannot change the school schedule, adjusting your own timetable to ensure eight hours’ sleep can also help you perform better at school.

1.If the first period class begins too early, which problems might appear among students?

a. Being in low spirits.

b. Feeling sleepy.

c. Missing lessons frequently.

d. Performing poorly in English.

e. Becoming lazy.

A. a, b, c B. b, c, d C. c, d, e D. a, b, d

2.The writer proves “School starts too early” by ______.

A. doing survey

B. doing experiments

C. comparing statistics

D. observing students’ behaviour

3.According to the article, students can obtain relatively enough sleep by ______.

A. changing the sleep rhythm

B. changing the opening bell

C. adjusting their own schedule

D. sleeping as late as possible

4.It is implied in the passage that in the morning ______.

A. there should be no classes

B. students’ sleep should be guaranteed

C. there should be Chinese lessons

D. there should be no science lessons

1.A

2.B

3.C

4.D

【解析】

試題分析:本文主要說明學校不應該開始太早,否則學生極易打瞌睡,學習成績也提不高。

1. 細節(jié)理解題。從文中第一段those students aren’t just lazy.這些學生不只是懶惰,可知e正確,從文中第二段Boys and girls naturally stay up later and sleep in later. 男孩和女孩自然熬夜到很晚,睡覺也晚。由此可知b正確,從文中第三段做的實驗可以看出,What’s more, attendance(出勤)goes up and student depression goes down. 更重要的是,出勤率上升,學生抑郁情緒減少了。故a正確;從文中第二段so forcing them to be up early for school cuts into their sleep time as well as their sleep rhythm, making them less ready to learn during those first-period classes. 所以迫使他們早起上學削減他們的睡眠時間以及他們的睡眠節(jié)律,使他們不太愿意在這第一節(jié)課學習。因此他們也會頻繁地錯過很多課。故c正確。故選A。

2. is proving the science. Hundreds of school districts in the U.S. have experimented with later start times and the academic performance of students has improved as a result. 實踐證明科學。在美國數(shù)以百計的學校已經(jīng)嘗試晚點開始上學,結(jié)果,學生的學習成績有所提高。因此可知,作者為了證明“學校開學太早”通過做實驗等等辦法,故選B。

3. you cannot change the school schedule, adjusting your own timetable to ensure eight hours’ sleep can also help you perform better at school. 如果你不能改變學校的時間表,調(diào)整自己的作息時間,保證八小時睡眠也可以幫助你在學校表現(xiàn)得更好。
4.細節(jié)分析題。從文章最后一段it turns out morning class is just too early for students to learn chemistry equations(方程式)or study an ancient poem.結(jié)果證明早上的課對學生們來說學習方程式或者一首古詩僅僅太早了,故可推知早上不應該有語文課或者數(shù)學這類理科性質(zhì)的課,但是并沒說早上不該有課,故選D。

考點:考察科普說明類閱讀

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