College Night Owls Have Lower Grades
College students who are morning people tend to get better grades than those who are nightowls(晚睡的人), according to ,University of North Texas researchers.
They had 824 undergraduate(大学本科生的)students complete a health survey that included questions about sleep habits and daytime functioning, and found that students who are morning people had higher grade point averages (GPAs) than those who are night people.
"The finding that college students who are evening types have lower GPAs is a very important finding, sure to make its way into undergraduate psychology texts in the near future, along with the research showing that memory is improved by sleep," study co-author Daniel J. Taylor said in a prepared statement.
"Further, these results suggest that it might be possible to improve academic performance by using chronotherapy(时间疗法) to help students retrain their biological clock to become more morning types, "Taylor said.
The research was expected to be presented Monday at SLEEP, the annual meeting of the Associated Professional(专业的) Sleep Societies, in Baltimore.
In other findings expected to be heard at the meeting, University of Colorado researchers found a significant association between insomnia (失眠)and a decline in college students&39; academic performance.
The study included 64 psychology, nursing and medical students, average age 27.4 years, who were divided into two groups--low GPAs and high GPAs.
Among those with low GPAs,69.7 percent had trouble falling asleep,53.1 percent experienced leg kicks or twitches (痉挛)at night,65.6 percent reported waking at night and having trouble falling back to sleep, and 72.7 percent had difficulty concentrating during the day.
"In college students, the complaint of difficulty concentrating during the day continues to have a considerable impact on their ability to succeed in the classroom," study author Dr. James F.Pagel said in a prepared statement. "This study showed that disordered sleep has significant harmful effects on a student&39;s academic performance, including GPAs."
In the first study, students who stay up late__________. 查看材料
A. had lower GPAs
B. had higher GPAs
C. performed equally well in their studies
D. had little difficulty concentrating during the day
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1 Architecture is to building as literature is to the printed word. The best buildings are often so well constructed that they outlast their original use. They then survive not only as beautiful objects, but as documents of the history of cultures. These achievements are never wholly the work of individuals. Architecture is a social art.
2 The renaissance brought about an entirely new age, not only in philosophy and literature but in the visual arts as well. In architecture, the principles and styles of ancient Greece and Rome were brought back to life and reinterpreted. They remain dominant until the 20th century.
3 Many kinds of stone are used as building materials. Stone and marble were chosen for important monuments because they are not burnable and can be expected to endure. Stone architecture was often blended with stone sculpture. The use of stone has declined, however, because a number of other materials are more adaptable to industrial use.
4 The complexity of modem life calls for a variety of buildings, More people live in mass housing and go, to work in large office buildings; they spend their income in large shopping centers, send their children to many different kinds of schools, and when they are sick they go to specialized hospitals and clinics. All these different types of buildings accumulated experiences needed by their designers.
5 By the middle of the 20th century, modem architecture, which was influenced by new technology and mass production, was dealing with increasingly complex social needs. Important characteristics of modem architectural works are expanses of glass and the use of reinforced concrete. Advances in elevator technology, air conditioning, and electric lighting have all had important effects.
A Building Materials
B Need of Greater Building Varieties in Modem Life
C Restoration of Ancient Civilizations
D Evolution in Style
E Factors Affecting Modem Architecture
F A Social Art
Paragraph 2 ______ .
A Biological ClockEvery living thing has what scientists call a biological clock that controls behavior. The bio- logical clock tells______ (51 )when to form. flowers and when the flowers should open. It tells ______ (52) when to leave the protective cocoons and fly away, and it tells animals and human beings when to eat, sleep and wake.
Events outside the plant and animal ______ (53)the actions of some biological clocks. Scientists recendy found, for example, that a tiny animal changes the color of its fur______(54) the number of hours of daylight. In the short______(55) of winter, its fur becomes white. The fur becomes gray brown in color in the longer hours of daylight in summer,
Inner signals control other biological docks, german scientists found that some kind of internal clock seems to order birds to begin their long migration(56) twice each year. Birds______ (57) flying become restless when it is time for the trip, ______(58)they become calm again when the time of the flight has ended.
Scientists say they are beginning to learn which______ (59) of the brain contain biological clocks. An American researcher, Martin Moorhead, said a small group of cells near the front of the brain ______ (60) to control the timing of some of our actions. These______ (61) tell a person when to______ (62), when to sleep and when to seek food. Scientists say there probably are other biological clock cells that control other body activities.
Dr. Moorhead is studying ______ (63)our biological clocks affect the way we do our work. For example, most of us have great difficulty if we must often change to different work hours.
______ (64) can take many days for a human body to accept the major change in work hours. Dr. Moorhead said industrial officials should have a better understanding of biological clocks and how they affect workers. He said______ (65) understanding could cut sickness and accidents at work and would help increase a factory"s production.
材料题请点击右侧查看材料问题 查看材料
A. animals
B. plants
C. humans
D. scientists
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void f(struct porb a[],int n)
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The British council put the figure of 750 million English language speakers. The only【53】 that the percentage of papers published in English has gone from 65% to 85% in the last 25 years is self-explanatory and only【54】the prevalence of English in all spheres of life. The importance of English skills has been exaggerated to the【55】that it overweighs practically everything in assessing person’s competency.
【56】of controversial information that English dominance will be replaced by Chinese, Arabic or Hindi languages by 2050, which was introduced by a linguist and methodologist David Graddol, a quantity of English language learners is increasing by【57】and bounds.
It is quite reasonable that everybody in the world should be【58】an opportunity to learn English in order to be able to communicate effectively at the global level Though, this is by no【59】always the case that English learning comes easily to people. Many English learners struggle with English to no purpose for years and cannot master it, whatever【60】they exert.
The point is that some people have【61】linguistic abilities, so called a feeling for languages and a way【62】for others is to learn how to learn English effectively. Most of us can succeed【63】dint of our diligence and perseverance. Undoubtedly, every person eau become a successful English learner. The main thing is to sort【64】and develop a set of successful language learning techniques, which, indeed,【65】from one learner to another.
1. Have curiosity to learn English and cognate something new, opening unexplored horizons of knowledge. Curiosity is a【66】force, which will push you up in English learning. You can be inquisitive about language, culture, traditions, or even people who【67】this country. You should always try to find a force, which will make you tick and help you advance with rapid strides. Someone calls it motivation; others name it an eager【68】to learn. No matter how it is called, the main thing is that it brings lasting and positive results.
2. Treat realistically a【69】of your goal, your potential and your time. Remember that English learning is impossible to limit within some frameworks. Because language learning has a beginning, but it does not have an exact ending, as English learning prolongs in the whole【70】of your life.
(51)