Question

【题目】 When your alarm clock rings and you drag yourself out of bed, you probably wonder： Why on earth does school have to start so early?

Fortunately, there is a new law to support—or better still, science.

A law in California, passed on Oct 13, requires that public middle schools begin classes no earlier than 8：00 am and that high schools start no earlier than 8：30 am. The law will go into effect by July 1, 2022.

Starting school at 8：00 or 8：30 in the morning may not sound like too big of a change, but it could mean one more hour of sleep for students who used to start school at 7:30 or even earlier.

"The effect of that one hour is something they will be feeling as 40-year-old adults," Sumit Bhargava, a sleep expert at Stanford University, told The New York Times. He said that not having enough sleep can affect students' mental health and increase the risk of being overweight and diabetes （糖尿病）.

In the short run, students' school performances should improve almost immediately. Kyla Wahlstrom, a researcher at the University of Minnesota's College of Education, found that students who have enough sleep are alert in class and get much more satisfying grades.

Some might say that asking students to go to bed earlier could have been a much easier solution than changing the school timetable across an entire state. But according to the American Academy of Sleep Medicine, teenagers go through biological changes when they enter puberty （青春期）,which makes it difficult for them to fall asleep before 11：00 pm. So when school starts at 8：00 or earlier, they can hardly get the ideal 8.5-9.5 hours of sleep that experts suggest they need to do their best in the daytime.

This is why when the new law came out, its author, Anthony Portantino, said, "Generations of children will come to appreciate this historic day and our governor for taking action."

【1】Which of the following is TRUE about the law?

A.The law has not been put into practice.

B.The law requires schools to start later than 8：30am.

C.The law will be passed by July 1, 2022.

D.The law is made by a university in California.

【2】What does the underlined word alert in Paragraph 6 probably mean?

A.Friendly.B.Sharp.

C.Calm.D.Honest.

【3】For a better academic performance in the daytime, how long do teenagers probably need to sleep?

A.About 8 hours.B.About 9 hours.

C.At least 10 hours.D.At most 8. 5 hours.

【4】What's the main idea of the text?

A.Lack of sleep could lead to health problems.

B.The amount of sleep people need changes with age.

C.A new law lets students sleep longer.

D.Sleeping problems are leading problems for teenagers.

Answer 1

【答案】

【1】A

【2】B

【3】B

【4】C

【解析】

本文是一篇说明文。主要讲述要出台一部新法律能让青少年有足够的睡眠时间以保证白天的学业成绩。

【1】细节理解题。根据文章The law will go into effect by July 1, 2022. 这部法律将于2022年7月1日生效。可知，这部法律还没有付诸实践，故选A。

【2】词义猜测题。根据文章Wahlstrom, a researcher at the University of Minnesota's College of Education, found that students who have enough sleep are alert in class and get much more satisfying grades. Wahlstrom，明尼苏达大学的一名研究人员发现有充足睡眠的人成绩更另人满意，由此可推断学生们在课堂上表现的也更好，思维更敏捷，故推断alert为敏捷的，同sharp敏捷的，灵敏的同意。故选B。

【3】细节理解题。根据文章So when school starts at 8：00 or earlier, they can hardly get the ideal 8.5-9.5 hours of sleep that experts suggest they need to do their best in the daytime. 因此，当学校8点或更早开始上课时，他们很难获得专家建议的理想的8.5-9.5小时的睡眠时间，以在白天做到最好。可知，要想在白天有一个更好的学业成绩，青少年需要大约9小时的睡眠时间，故选B。

【4】主旨大意题。要讲述要出台一部新法律能让青少年有足够的睡眠时间以保证白天的学业成绩。C选项A new law lets students sleep longer. 一部新的法律允许学生睡得更久。C选项概括文章大意，中心思想，故选C。