Question

About half American teenagers do not get enough sleep on school nights.They get an average of sixty to ninety minutes less than experts say they need.
One reason for this is biology.Experts say teens are biologically programmed to go to sleep later and wake up later than other age groups.Yet many schools start classes as early as seven in the morning.As a result，many students go to class feeling like sixteen?year?old Danny.He is an active teen— except in the morning.“Getting up in the morning is pretty terrible.I’m just very out of it and tired.Through the first and second period I can hardly stay awake,” he said.
Michael Breus is a psychologist.Teens，he says，need to sleep eight to nine hours or even nine to ten hours a night.He says sleepy teens can experience a form of depression(消沉) that could have big influence on their general well being.It can affect not just their ability in the classroom but also on the sports field and on the road.So what can schools do about sleepy students？The psychologist says one thing they can do is to start classes later in the morning.Studies show that students can improve by a full letter grade in their first and second period classes.
Eric Peterson is the head of St.George’s School in the northeastern state of Rhode Island.He wanted to see if a thirty?minute delay(推遲)would make a difference.It did.He says visits to the health center by tired students decreased by half.Late arrivals to the first period fell by a third.And students reported that they were less sleepy during the day.Eric Peterson knows that changing start times is easier at a small school like his.But he is hopeful that other schools will find a way.
【小題1】What’s the best title for the passage?

A．Later classes，fewer sleepy teens

B．Early birds have good food

C．Early to bed and early to rise

D．Fewer classes，more happiness

【小題2】The underlined word“this”in the second paragraph refers to________.

A．teenagers’ staying up

B．teenagers’ getting up late

C．teenagers’ not getting enough sleep

D．teenagers’ not studying seriously

【小題3】Michael Breus thinks that________.

A．teens should get up early

B．teens need enough sleep to be lively

C．depression is common in teens

D．the first period class should be cut off

【小題4】The last paragraph tells us________.

A．Eric Peterson visits the health center every day

B．it’s not easy for Eric Peterson to change start times

C．students in St.George’s School can get up later than before

D．students in St.George’s School aren’t late for school any more

【小題5】What can we infer from the passage?

A．Danny is a lazy boy and always late for school.

B．Teens should go to bed early and get up early, too.

C．The psychologist has no idea how to solve the problem.

D．Enough sleep makes a healthy and active student.

Answer 1

【小題1】A
【小題2】C
【小題3】B
【小題4】C
【小題5】D

解析試題分析：本文講述了美國的學生缺少睡眠，導致在學校上午的課程中表現較差，說明了充足睡眠的重要性。
【小題1】A 主旨大意題。根據文章第一段About half American teenagers do not get enough sleep on school nights.They get an average of sixty to ninety minutes less than experts say they need.說明美國的學生缺少睡眠，導致上午前2節課的效果很差。故A正確。
【小題2】C 推理題。本句One reason for this is biology.中的this就是指第一段中About half American teenagers do not get enough sleep on school nights.They get an average of sixty to ninety minutes less than experts say they need.提及的年輕人的睡眠不夠情況。故C正確。
【小題3】B 細節題。根據第二段6,7,8行Michael Breus is a psychologist.Teens，he says，need to sleep eight to nine hours or even nine to ten hours a night.He says sleepy teens can experience a form of depression(消沉) that could have big influence on their general well being.It can affect not just their ability in the classroom but also on the sports field and on the road可知缺少睡眠對年輕人有很大的影響，所以年輕人需要足夠的睡眠讓他們保持活躍。故B正確。
【小題4】C 推理題。根據文章最后3行And students reported that they were less sleepy during the day.Eric Peterson knows that changing start times is easier at a small school like his.But he is hopeful that other schools will find a way.可知在這個學校里學生起床要比別的地方稍微晚一點。故C正確。
【小題5】D 推斷題。根據文章2,3段可知缺少睡眠會有很多問題，有了充足的睡眠可以讓學生很健康積極向上。故D正確。
考點：考查健康教育類短文閱讀
點評：本文講述了美國的學生缺少睡眠，導致在學校上午的課程中表現較差，說明了充足睡眠的重要性。
文章基本上是考查細節題，對此類題型考生可以首先從問題中找到關鍵詞，然后以此為線索，運用略讀及查閱的技巧在文中迅速尋找這一細節，找到后再把這一部分內容仔細閱讀一遍，仔細比較所給選項與文中細節的細微區別，在準確理解細節的前提下，最后確定最佳答案。