【題目】 Though times have changed, falling asleep in class is still quite common among teenagers.

Why do students sometimes fall asleep in class? An obvious(顯而易見的) reason is lack(缺少) of sleep. However, there are also causes for getting too little sleep.

Homework is a daily meal for most students, one that can take three to four hours per night. A teenager who wants to be able to take part in any activity besides homework must stay up late to fit everything in. Club activities, sports, computer-game playing, and TV viewing, for example, all lead to teens having less time for both homework and sleep. Sometimes teens lack sleep because of after-school jobs that are taken on to earn extra money for college, family cost, or simply for clothes.

Physical problems are another reason that can cause students to fall asleep in class. For example, insomnia(失眠), which may keep a student up at night, causing exhaustion(疲憊不堪) during class hours, is a serious problem that may require medical attention. Medical research also supports the idea that each person has a body clock that helps to decide his or her sleep pattern. Unluckily, these body clocks do not always work according to school timetables.

The effects of falling asleep in class can be quite serious. First of all, sleeping in class is not a good way to show your respect to teachers. In addition, it is highly possible that other students may make jokes about those who sleep in class. However, the most harmful effect of sleeping in class is missing important points. In the long run, sleepers may end up with failing classes.

Since teens are probably not going to deal with the problem, falling asleep in class will probably remain an all-too-common situation. It will continue until more teens find a way to balance their personal and social lives with school and work, while still finding enough time to sleep.

【1】According to the 1st paragraph, what is the common situation among teenagers?

_________________________________________________________________________

【2】What are the main reasons for this common situation?

_________________________________________________________________________

【3】Please show us the reasons for teenagers staying up late in Paragraph 3.

_________________________________________________________________________

【4】Why does the writer talk about “the body clock” in paragraph 4?

_________________________________________________________________________

【5】According to the 5th paragraph, why shall we avoid the problem?

_________________________________________________________________________

【6】What can you learn from this passage?

_________________________________________________________________________

【答案】

【1】Falling asleep in class.

【2】The lack of sleep and physical problems.

【3】Homework, after-school activities, and after-school jobs.

【4】To tell us it’s a serious problem that requires medical attention.

【5】Because it may hurt the teachers, cause classmates laugh at you and lead to failing classes.

【6】Teenagers should find ways to solve the problem.

【解析】

本文是一篇說明文，介紹了課堂睡覺的原因，以及避免課堂睡覺的必要性。

【1】

題意：根據(jù)本文第1段內(nèi)容，存在于青少年中的普遍情況是什么？

根據(jù)原文Though times have changed, falling asleep in class is still quite common among teenagers可知，雖然時(shí)代變了，但在課堂上睡覺的情況在青少年中仍然普遍存在。故答案為Falling asleep in class.

【2】

題意：造成這種普遍情況的主要原因是什么？

根據(jù)原文An obvious(顯而易見的) reason is lack(缺少) of sleep和Physical problems are another reason that can cause students to fall asleep in class可知，造成課堂睡覺的原因有缺乏睡眠和身體問題。故答案為The lack of sleep and physical problems.

【3】

題意：請(qǐng)根據(jù)第3段內(nèi)容，告訴我們青少年熬夜的原因。

根據(jù)原文Homework is a daily meal for most students, one that can take three to four hours per night … Club activities, sports, computer-game playing, and TV viewing, for example, all lead to teens having less time for both homework and sleep … teens lack sleep because of after-school jobs可知，家庭作業(yè)、課外活動(dòng)、課外兼職是造成青少年熬夜的原因。故答案為Homework, after-school activities, and after-school jobs.

【4】

題意：為什么作者要在第4段提到“人體生物鐘”？

根據(jù)原文insomnia(失眠), which may keep a student up at night, causing exhaustion(疲憊不堪) during class hours, is a serious problem that may require medical attention可知，失眠是一個(gè)嚴(yán)重的問題，可能需要醫(yī)療手段介入，而失眠的生理原因在于人體生物鐘的失效。故答案為To tell us it’s a serious problem that requires medical attention.

【5】

題意：根據(jù)本文第5段內(nèi)容，我們?yōu)槭裁匆苊膺@個(gè)問題（課堂睡覺）？

根據(jù)原文sleeping in class is not a good way to show your respect to teachers. In addition, it is highly possible that other students may make jokes about those who sleep in class … In the long run, sleepers may end up with failing classes可知，之所以要避免課堂上睡覺這一問題，是為了避免給人留下不尊重老師的印象，避免被人嘲笑，以及避免課業(yè)進(jìn)度被落下。故答案為Because it may hurt the teachers, cause classmates laugh at you and lead to failing classes.

【6】

題意：你能從這篇文章中學(xué)到什么？

根據(jù)原文It will continue until more teens find a way to balance their personal and social lives with school and work, while still finding enough time to sleep可知，本文的最后作者提到，青少年應(yīng)該找出一些方法來解決這一問題。故答案為Teenagers should find ways to solve the problem.

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