题目内容

Judging from recent surveys, most experts in sleep behavior agree that there is virtually an epidemic(流行病) of sleepiness in the nation.“I can’t think of a single study that hasn’t found Americans getting less sleep than they ought to,” says Dr.David.Even people who think they are sleeping enough would probably be better off with more rest.
The beginning of our sleep-deficit(lack)crises can be traced back to the invention of the light bulb a century ago.From diary entries and our personal accounts from the 18th and 19th centuries, sleep scientists have reached the conclusion that the average person used to sleep about 9.5 hours a night.“The best sleep habits once were forced on us, when we had nothing to do in the evening down on the farm, and it was dark.” By the 1950s and 1960s, the sleep schedule had been reduced dramatically, to between 7.5 and 8 hours, and most people had to wake to an alarm clock.“People cheat in their sleep, and they don’t even realize they’re doing it,” says Dr.David.“They think they’re okay because they can get by on 6.5 hours, when they really need 7.5, 8 or even more to feel ideally energetic. ”
Perhaps the most merciless robber of sleep, researches say, is the complexity of the day.Whenever pressures from work, family, friends and community increase, many people consider sleep the least expensive item on their programs.“In our society, you’re considered dynamic if you say you need only 5.5 hours’ sleep.If you’ve got to get 8.5 hours, people think you lack drive and ambition.”
To determine the consequences of sleep-deficit, researchers have put subjects through a set of psychological and performance tests requiring them, for instance, to add columns of numbers or recall a passage read to them only minutes earlier.“We’ve found that if you’re in sleep deficit, performance suffers,” says Dr.David.“Short-term memory is weakened, as are abilities to make decisions and to concentrate.”
【小题1】What is the main topic of the passage?

A.The history of people’s sleeping patterns.
B.The epidemic of sleepiness in the modern times.
C.Research on the causes and consequences of sleep-deficit.
D.The minimum of our sleeping hours.
【小题2】Which of the following is Dr.David’s opinion?
A.People’s metal power suffers if they are lacking in sleep.
B.Some people can remain energetic with only 6.5 hours’ sleep a night.
C.If they get 8.5 hours’ sleep, people will be full of drive and ambition.
D.People who think they are sleeping enough are better off than those who don't.
【小题3】People in the 18th and 19th centuries slept about 9.5 hours a night because _______.
A.they had no electricity
B.they knew what was best for their health
C.they were forced by their parents to do so
D.they were not so dynamic and ambitious as modern people are
【小题4】The major cause of sleep-deficit of modern people is _______.
A.the endless TV programs in the evenings and the internet
B.the heavy work load of the day
C.the sufficient energy modern people usually have
D.loud noises in the modern cities
【小题5】What does the word “subjects” in paragraph 4 mean?
A.Person or thing that is being discussed or described.
B.Branch of knowledge studied in a school.
C.Person or thing being treated in a certain way or being experimented on.
D.Any member of a State apart from the supreme ruler.


【小题1】C
【小题2】A
【小题3】A
【小题4】B
【小题5】C

解析试题分析:本文主要讲了研究员对睡眠不足对人类的影响做试验研究。
【小题1】根据To determine the consequences of sleep-deficit,故选C。
【小题2】根据We’ve found that if you’re in sleep deficit, performance suffers,” says Dr.David.“Short-term memory is weakened, as are abilities to make decisions and to concentrate.”,故选A。
【小题3】根据“The best sleep habits once were forced on us, when we had nothing to do in the evening down on the farm, and it was dark.”,故选A。
【小题4】根据Perhaps the most merciless robber of sleep, researches say, is the complexity of the day.Whenever pressures from work, family, friends and community increase, many people consider sleep the least expensive item on their programs,故选B。
【小题5】根据through a set of psychological and performance tests requiring them,故选C。
考点:说明文阅读理解。
点评:做这类题要有理有据,以文中所给事实细节为依据,全面把握作者思路与文章脉络,对隐含的观点进行合理推测与判断,深入领会作者“言外之意”,切忌主观臆断,断章取义,曲解作者本意。

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For a while, my neighborhood was taken ever by an army of joggers. They were there all the time: early morning, noon, and evening. There were little old ladies in gray sweats, young couples in Adidas shoes, middle-aged men with red faces. “Come on!” My friend Alex encouraged me to join him as he jogged by my house every evening. “You’ll feel great.”
Well, I had nothing against feeling great and if Alex could jog every day, anyone could. So I took up jogging seriously and gave it a good two months of my life, and not a day more. Based on my experience, jogging is the most overvalued form of exercise around, and judging from the number of the people who left our neighborhood jogging army, I’m not alone in my opinion.
First of all, jogging is very hard on the body. Your legs and feet need a real pounding(追击)running down a road for two or three miles. I developed foot, leg, and back problems. Then I read about a nationally famous jogger who died of a heart attack while jogging, and I had something else to worry about. Jogging doesn’t kill hundreds of people, but if you have any physical weaknesses, jogging will surely bring them out, as they did with me.
Secondly, I got no enjoyment out of jogging. Putting one foot in front of the other for forty-five minutes isn’t my idea of fun. Jogging is also a lonely pastime. Some joggers say, “I love being out there with just my thoughts” Well, my thoughts began to bore me, and most of them were on how much my legs hurt.
And how could I enjoy something that brought me pain? And that wasn’t just the first week: it was practically every day for two months. I never got past the pain level, and pain isn’t fun. What a cruel way to do it! So many other exercises, including walking, lead to almost the same results painlessly, so why jog?
I don’t jog any more, and I don’t think I ever will. I’m walking two miles three times a week at a fast pace, and that feels good. I bicycle to work when the weather is good. I’m getting exercise, and I’m enjoying it at the same time. I could never say the same for jogging, and I’ve found a lot of better ways to stay in shape.
【小题1】From the first paragraph, we learn that in the writer’s neighborhood ______.

A.jogging became very popular
B.people jogged only during the daytime
C.Alex organized an army of joggers
D.jogging provided a chance to get together
【小题2】The underlined word “them”(Paragraph 3) most probably refers to _____.
A.heart attacksB.Back problems
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【小题3】What was the writer’s attitude towards jogging in the beginning?
A.He felt it was worth a try.
B.He was very fond of it.
C.He was strongly against it.
D.He thought it must be painful.
【小题4】Why did the writer give up jogging two months later?
A.He disliked doing exercise outside.
B.He found it neither healthy nor interesting.
C.He was afraid of having a heart attack.
D.He was worried about being left alone.
【小题5】 From the writer’s experience, we can conclude that______.
A.not everyone enjoys jogging
B.he is the only person who hates jogging
C.nothing other than jogging can help people keep fit
D.jogging makes people feel greater than any other sport.

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