This is opposed to the“early bird”schedule，and is a kind of disorder where the individual tends to stay up much past midnight.Such a person has great difficulty in waking up in the mornings.Research suggests that night owls feel most alert and function best in the evenings and at night.Research findings have shown that about 20 percent of people can be classified as“night owls”and only 10 percent can be classified as“early birds”—the other 70 percent are in the middle.Although this is clearly not true for all students，for the ones who are true night owls this gives them an excellent excuse for missing their lectures which unfortunately fall before midday.

　　1．What does the author stress in Paragraph 1?

　　A．Many students are absent from class.

　　B．Students are very tired on Monday mornings.

　　C．Students do not adjust their sleep patterns well.

　　D．Students are not well prepared for class on Mondays.

　　2．Which of the following is true according to Paragraph 2?

　　A．Most students prefer to get up late in the morning.

　　B．Students don’t sleep well because of alerting systems.

　　C．One’s body clock governs the sleep/wake cycle independently.

　　D．Adolescents’ delayed sleep/wake cycle isn’t the preferred pattern.

　　3. Which of the following is closest in meaning to the underlined word“classified”？

【2017届高考英语一轮复习考点真题演练：Section 12 阅读理解之科普知识类（含解析）】相关文章：

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (67)

★ 【北师大版】2014届高考英语一轮复习指导课时作业：Unit 10 B卷 Word版含解析

★ 【人教版】2014届高考英语一轮复习指导考点针对练：选修7 unit3《Under the sea》

★ 2017届高考英语二轮复习课时训练：4（含解析）

★ 2014高考英语（新人教版）一轮基础训练（2）A、B卷（附答案或解析）

★ 【人教版】2014届高考英语一轮复习指导考点针对练：必修3 unit2《Healthy eating》

★ 2017高考四川省广安市英语阅读理解一轮系列训练：15（含解析）

★ 【课堂新坐标】2017届高考英语（通用版）二轮复习书面表达专题训练：训练5 书信、邮件＋说明文（含解析）

★ 【优化方案】2017届高考英语二轮复习全国卷Ⅱ题型重组训练：第12组（含解析）

★ 2017届高考英语二轮复习课时训练：12（含解析）