What do we think with? Only the brain? Hardly. The brain is like a telephone exchange. It is the switchboard, but not the whole system. Its function is to receive incoming signals, make proper con ...
Like most parents, geologist Brain Atwater worries about his daughter's safety. But these days, he has an unusual concern; The public school she 11 in Seattle has unreinforced brick walls, a 12 be ...
Hope is Healthy You are about to go to the hospital for a routine surgical procedure. Which attitude is healthier? A. "I'd better find out everything I can about this operation—you can ne ...
Every day 25 million U. S. children ride school buses. The safety record for these buses is much better than for passenger cars; but nevertheless, about 10 children are killed each year riding on ...
For as long as humans have raised crops as a source of food and other products, insects have damaged them. Between 1870 and 1880, locusts ate millions of dollars' worth of crops in the Mississippi V ...
Growth of trade will depend greatly on availability of energy sources. There may still be a trillion barrels of recoverable oil in the Middle East. But the oil crisis of 1974 has 11 to renewed int ...
Computer Use in School Education Accompanying the developments in computing as a subject for study there has been a corresponding growth in the use of the computer as an aid to teaching across ...
According to the latest research in the' United States of America, men and women talk such different languages that it is like people from two different cultures trying to communicate. Professor D ...
In the last two hundred years there have been great changes in the method of production of goods. This is now also true of the building industry; for mechanization has been introduced. System buil ...
The economy of the United States after 1952 was the economy of a well-fed, almost fully employed people. Despite 11 alarms, the country escaped any postwar depression and lived in a 12 of boom. An ...
Etiquette (礼仪) The origins of etiquette—the conventional rules of behavior and ceremonies observed in polite society—are complex. One of them is respect for authority. From the most primit ...
Nearly everyone agrees that money doesn't buy as much as it used to, no matter where you want to spend it. This is certainly true of the paper money that passes so quickly through one's hands. Inf ...
To understand why someone becomes an optimist or a pessimist, it helps to understand what distinguishes them. Say you crash your car. Do you expect good things to happen after the accident—an eas ...
Social customs and ways of behaving change. Things which were considered impolite many years ago are now 11 . Just a few years ago, it was 12 impolite behavior for a man to smoke on the street. No ...
Informing the World Every day, the news of the world is relayed to people by over 300 million copies of daily papers, over 400 million radio sets, and over 150 million television sets. Additio ...
When blood is sent to the lungs by the heart, it has come back from the cells in the rest of the body. So the blood that goes into the wall of an air sac (Jl) contains much dissolved carbon dioxid ...
The greatest recent social changes have been in the lives of women. During the twentieth century there has been a remarkable shortening of the proportion of a woman's life spent in caring for the ch ...
No one knows exactly how many disabled people there are in the world, but 11 suggest the figure is over 450 million. The number of disabled people in India 12 is probably more than double the ...
Making Friends in Family WHEN Joan gave birth to the first boy in her family in three generations, she and her husband were ecstatic. So were her parents. Joan expected her older sister, Sally ...
Of all the continents, the most drastic reduction in wildlife has occurred in North America, where the transition from a rural to a highly industrialized society has been most rapid. Among the vic ...
In order to give you as much help as possible, I have drawn up a list of questions that you ought to ask yourself. "Have I given thought to what I would like to be doing in 15 to 20 years from ...
If you are looking for information, library shelves are a good place to start. But if you need up-to-the-minute data or have specialized needs, you may find a computerized database more useful, le ...
What Will Space People Look Like? Once we are in space, the question arises—will we be the only ones? Will we find other intelligent beings plying (往返于) the space ways, and if so, what wil ...
There are various ways in which individual economic units can interact with one another. These basic ways may be described as the market system, the administered system, and the traditional system ...
For some time past it has been widely accepted that babies and other creatures learn to do things because certain acts lead to "rewards"; and there is no reason to doubt that this is true. But it ...
In October 1987, the National Board for Professional Teaching Standards began its work to set new standards of accomplishment for the teaching profession and to improve the 11 of education availab ...
Using Land Wisely A very important world problem, —in fact I am inclined to say it is the most important of all the great world problems which face us at the present time—is the rapidly incr ...
At some time in your life you may have a strong desire to do something strange or terrible. However, chances are that you don't act on your impulse, but let it pass instead. You know that to commi ...
Very old people do raise moral problems for almost everyone who comes in contact with them. Their values—this can't be repeated too often—are not necessarily our values. Physical comfort, cleann ...
Women are also underrepresented in the administration and this is because there are so few women 11 professors. In 1985, Regent Beryl Milburn produced a report blasting the University of Texas Sys ...
The Causes of Conflict The evidence taken from the observation of the behavior of apes and children suggests that there are three clearly separable groups of simple causes for the outbreak of ...
It is doing something better than other people that makes us unique. Yet a surprising number of people still see individuality as a surface thing. They wear bright clothes, dye their hair strange ...
If the population of the earth goes on increasing at its present rate, there will eventually not be enough resources left to sustain life on the planet. By the middle of the 21st century, if prese ...
What is your favorite color? Do you like yellow, orange, red? If you do, you must be an optimist, a leader, an active person who 11 life, people and excitement. Do you prefer greys and blues? Then ...
Protecting Against Poverty Conditions in the Late Nineteenth Century. In the great cities of the nineteenth century slum dwellers crowded into foul-smelling tenements(公寓) , worked in swe ...
Water problems in the future will become more intense and more complex. Our increasing population will tremendously increase urban wastes, primarily sewage. On the other hand, increasing demands f ...
In the early days of nuclear power, the United States make money on it. But today opponents (反对者 ) have so complicated its development that no nuclear plants have been ordered or built here in ...
As the 11 of life continues to increase, we are fast losing the art of relaxation. Once you are in habit of rushing through life, being on the go from morning till night, it is hard to slow down. Bu ...
Rainmaking The idea of rainmaking is almost as old as man, but it was not until 1946 that man succeeded in making rain. In ancient times, rainmakers had claimed to bring rain by many methods: ...
2011四六级VIP全程班：早准备 早通关 Most young people enjoy some form of physical activity. It may be walking, cycling or swimming, or in winter, skating or skiing. It may be a game of some kin ...
The English policeman has several nicknames ( 绰号 ) but the most frequently used are "copper" and "bobby". The first name comes from the verb "to cop " (which is also slang ) , meaning " to take ...
Personality is, to a large extent, inherent—A-type parents, usually bring about A-type children. But the environment must also have a 11 effect, wince if competition is important to the parents i ...
Learn How to Listen The people in the room were tense. Five young engineers were sitting with their boss. They were trying to settle details of an important new plant site for a major client. ...
The process of perceiving others is rarely translated (to ourselves or others) into cold, objective terms. "She was 5 feet 8 inches tall, had fair hair, and wore a colored skirt. " More often, we ...
A growing world population and the discoveries of science may 11 this pattern of distribution in the future. As men slowly learn to master diseases, control floods, prevent famines, and stop wars, ...
How to Deal With Difficult People In New York City one day, a businesswoman got into a taxi. Because it was rush hour and she was hurrying for a train, she suggested a route. "I've been a cabb ...
2011四六级VIP全程班：早准备 早通关 Anne Whitney, a sophomore (大学二年级学生) at Colorado State University, first had a problem taking tests when she began college. "I was always well prepared f ...
Social change is more likely to occur in societies where there is a mixture of different kinds of people than in societies where people are similar in many ways. The simple reason for this is that ...
When a person feels low, blue, or down in the clumps, it usually means he has been hurt, disappointed, or saddened by something that causes a confused and listless feeling. There is 11 a type of m ...
The School Years Soon after the United States was founded, Thomas Jefferson, who was President from 1801 to 1809 wrote, "If a nation expects to be ignorant and free in a state of civilization, ...
The men who race the cars are generally small, with a tight, nervous look. They range from the early 20s to the middle 40s, and it is usually their nerves that go first. Fear is the driver's c ...
Despite these alarming statistics, the scale of the threat that smoking causes to women's health has received surprisingly little attention. Smoking is still seen by many as a mainly male problem, ...
Who Knows Since no one knows what scientific discoveries will be made between now and the year A. D. 2000, each of us can make his own predictions. Our prophecies (预言) need not be comple ...
Back in the old days, when I was a child, we sat around the family roundtable at dinnertime and exchanged our daily experiences. It wasn't very organized, but everyone was recognized and all the n ...
Most of us trade money for entertainment. Movies, concerts and shows are enjoyable but 11 .If you think that you can't have a good time without spending a lot of money, read on. A little resourcef ...
I have had just about enough of being treated like a second-class citizen, simply because I happen to be that put-upon member of society—a customer. The more I go into shops and hotels, banks and ...
Student expeditions do a great deal of good work on the Arctic islands but from time to time cause trouble in the huts, probably because students are not familiar with the 11 of the little wooden ...
The Man on the Street and the Men on the Moon Does walking on the moon make life better for people on earth? Considering all the problems of our own world, why should we be spending huge sums ...
It is well known that when an individual joins a group he tends to accept the group's standards of behavior and thinking. Many illustrations (例证) could be given of this from everyday life, but w ...
40 years ago the idea of disabled people doing sport was never heard of. But when the annual games for the disabled were started at Stoke Mandeville, England in 1948 by Sir Ludwig Guttmann, the si ...
The Look Younger Diet Is the Fountain of Youth a myth? Not entirely, many experts in nutrition now believe, "Age fast, or age slow—it's up to you. " declares Dr. Kenneth Cooper, president and ...
Without most people realizing it, there has been a revolution in office work over the last ten years. Before that time, large computers were only used by large, rich companies that could afford th ...
The history of Mother's Day is centuries old and goes back to the times of ancient Greeks, who held festivities to honor Rhea, the mother of the gods. The early Christians celebrated the Mother's ...
Cellphone feels like a part of your body? A global survey has found that most people can't live without their mobiles, never leave home without them and, if given a choice, would rather lose their ...
Losing weight is not only good for the waistline, it is good for the brain。 保持健康的体重不仅能让你拥有苗条的腹部线条，同时还有益于你的大脑。 Scientists say substantial weight loss impro ...
Spring arrived incredibly early this year, according to a botanist who monitors the blooming patterns of flowers。 古人云“春江水暖鸭先知”，但今年的春季似乎来得特别早，植物学家在观测研究了鲜花 ...
President Barack Obama has complained about the loss of privacy that comes with being leader of the United States, regretting the loss of simple pleasures such as a long walk or a trip to the car wa ...
It doesn't matter if a college student lives in the United States, Chile, China, Slovakia, Mexico or Lebanon -- many are addicted to media, researchers say。 Susan D. Moeller of the University ...
The rich grew richer last year， even as the world endured the worst recession in decades. A stock market rebound helped the world's ranks of millionaires climb 17 percent to 10 million， whi ...
Trainee doctors are being left alone with seriously-ill patients out of hours because highly-paid experienced older staff want to clock off at 6pm. 那些高薪有经验的老医师都把严重病患留给实习医生 ...
Artists from around the world are emerging from the long winter for this year's spring tours to China. 为了今年的春季旅游，世界各地的艺术家们从漫长的冬天就开始来到中国。 French artists are o ...
The smartphone is already the Swiss Army knife of the digital age, replacing the need for alarm clocks, GPS units and even digital cameras with the flick of a finger. 智能手机已经是数字时代的 ...
If you spend the day surreptitiously trawling Facebook and Twitter while trying to convince the boss you are hard at work, then such clandestine behaviour could soon be a thing of the past. 如 ...
It may come as old news to many women, but it seems a bit of retail therapy really is good for you. A day at the shops can help you live longer, says a study. And surprisingly, the benefits ...
A new study says the world's tropical coastal forests store more planet-warming carbon dioxide than almost any other ecosystem.But rapid loss of these forests - known as mangroves - is releasing s ...
