Sleep Loss and Its Effects
Mental fatigue can be as threatening as a heart attack. Recent evidence indicates that sleepiness is a leading cause of traffic and industrial accidents. Human error causes between 60% and 90% of all workplace accidents, depending on the type of job, observes biological psychologist David Dinges of the University of Pennsylvania. And inadequate sleep is a major factor in human error , other research suggests that sleep loss contributes to everything from drug abuse to poor grades in school.
A typical adult needs about eight hours of shut-eye a night to function effectively. By that standard, million of Americans are for a long time sleep deprived, trying to get by on six hours or even less. In many household cheating on sleep has become an unconscious and harmful habit. In its mid form, its watching Ted Koppel and going to bed late and then getting up early to get to the gym, says Cornells Pollak. In extreme cases people stay up most of the night, seeing how little sleep will keep them going. They try to compensate by sleeping late on weekends, but that makes up for only part of the shortfall. Over the months and years, some researchers believe, the imbalance builds up and the effects accumulate. Most Americans no longer know what it feels like to the fully alert, contends Dr. William Dement, director of Stanford Universitys Sleep Center. They go through the day in a sort of twilight zone; the eyes may be wade open, but the brain is partly shut down.
Single parent Dianna Bennett, 43, works as a nurse at a correctional facility in Gardner, Mass. To be able to spend time with her three children during the day, she works the night shift, a schedule that usually allows her no more than four hours of sleep, My kids tell me I am always tired. She says. Amy Schwartzman, 35, a law student at Yale University, gets up at 9 a.m. and then, she attends classes and simulated court and work as a research assistant, often does not get home until 10 p.m. Nights of throwing into bed at 3 a.m. makes her feel as if my brain isnt moving as quickly as it should be. Noting that the circles under her eyes keep getting darker, My mother told me I look like a raccoon. Says Schwartzman.
31. Sleep loss contributes to everything EXCEPT______.
A. drug abuse
B. poor school grades
C. work effect
D. accidents
32. According to the passage, on weekends some people always ______.
A. go to bed
B. go to bed early
C. get up late
D. get up early
33. Because of sleep loss, most American ______.
A. have wide open eyes
B. are not fully alert
C. try to sleep more
D. live in the twilight zone
34. Though not stated, the author implies that ______.
A. American drug abuse is connected with loss of sheep
B. American students poor grades result from lack of sleep
C. Adequate sleep is necessary for peoples health
D. Accidents in the states could be reduced by more sleep
35. In his passage, which of the following is NOT mentioned by the author?
A. How interesting American night life is.
B. How busy some Americans are.
C. Some Americans attitude toward sleep.
D. People should have more sleep.
新概念英语第三册美音版 43-Fully Insured
新概念英语第三册美音版 20-Pioneer Pilots
新概念英语第三册美音版 15-Fifty Pence Worth of Trouble
新概念英语第三册美音版 22-By Heart
新概念英语第三册美音版 16-Mary Had a Little Lamb
新概念英语第三册美音版 23-One Man’s Meat is Another Man’s Poison
新概念英语第三册美音版 24-A Skeleton in the Cupboard
新概念英语第三册美音版 42-Modern Cavemen
新概念英语第三册美音版 45-The Power of the Press
新概念英语第三册美音版 18-Electric Currents in Modern Art
新概念英语第三册美音版 48-The Silent Village
新概念英语第三册美音版 31-A Lovable Eccentric
新概念英语第三册美音版 06-Smash-and-Grab
新概念英语第三册美音版 07-Mutilated Ladies
新概念英语第三册美音版 19-A Very Dear Cat
新概念英语第三册美音版 09-Flying Cats
新概念英语第三册美音版 13-It’s Only Me
新概念英语第三册美音版 40-Who’s Who
新概念英语第三册美音版 01-A Puma at Large
新概念英语第三册美音版 08-A Famous Monastery
新概念英语第三册美音版 46-Do It Yourself
新概念英语第三册美音版 10-The Loss of the Titanic
新概念英语第三册美音版 35-Justice was Done
新概念英语第三册美音版 34-A Happy Discovery
新概念英语第三册美音版 27-Nothing to Sell and Nothing to Buy
新概念英语第三册美音版 05-The Facts
新概念英语第三册美音版 47-Too High a Price
新概念英语第三册美音版 36-A Chance in a Million
新概念英语第三册美音版 21-Daniel Mendoza
新概念英语第三册美音版 49-The Ideal Servant