题目内容
（请给出正确答案）
Nearly half the increase in metropolitan population is accounted for by the
A．growth of small towns
B．migration to farm areas
C．growth of the suburbs
D．expansion of existing urban areas
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更多“Nearly half the increase in me…”相关的问题
______ haven't visited anybody for nearly half a year.
A) Tom and Lucy B) Neither Tom nor Lucy
C) Tom or Lucy D) Either Tom or Lucy
A.about
B.around
C.over
D.nearly
The sun is the source of all of the following EXCEPT______.
A．gasoline
B．natural gas
C．atomic power
D．animal fat
Today there are about seven million Americans in the colleges and universities. Young persons under twenty-five make up nearly half of the American population. Many of these will soon be in charge of the nation. Naturally, their ideas are important to everyone in the country, and it is necessary for older people to understand what they think and feel.
College students today have strong opinions about right and wrong. They are deeply interested in making a better life for all people, especially for those who have not been given a fair chance before now. They see much that is wrong in the lives of their parents. It is hard for them to see what is right and good in the older ways. As a result, there is often trouble in American families.
Which of the following statements is true？
A．People haven' t written much about American youth.
B．Writers have wasted a great deal of their effort to write about American youth.
C．Much has been written about American youth.
D．Young people' s ideas are not important enough to the USA.
But on average, Americans sleep only about seven and a half hours per night, a marked drop from the nine hours they averaged in 1910. What's worse, nearly one third of all Americans get less than six hours of sleep on a typical work night. For most people, that's not nearly enough.
Finding ways to get more and better Sleep can be a challenge. Scientists have identified more than 80 different sleep disorders. Some sleeping disorders are genetic. But many problems are caused by staying up late and sleeping in, by traveling frequently between time zones or by working nights. Dr. James F. Jones at National Jewish Medical and Research Center in Denver says that sleep disorders are often diagnosed as other discomforts. About one third of the patients referred to him with possible chronic fatigue syndrome actually have treatable sleep disorders. "Before we do anything else, we look at their sleep, "Jones says.
Sleep experts say that most people would benefit from a good look at their sleep patterns. "My motto is 'Sleep defensively'," says Mary Carskadon of Brown University. She says people need to carve out sufficient time to sleep, even if it means giving up other things. Sleep routines—like going to bed and getting up at the same time every day—are important. Pre-bedtime activities also make a difference. As with Elaner, who used to suffer from sleeplessness, a few lifestyle. changes—avoiding stimulants and late meals, exercising hours before bedtime, relaxing with a hot bath—yield better sleep.
What is TRUE of human sleep？
A．Most people need less sleep when they grow older.
B．Most people need seven and a half hours of sleep every night.
C．On average, people in the U.S. today sleep less per night than they used to.
D．For most people, less than six hours of sleep on a typical work night is enough.
There’s been a substantial _______in doctors ’ methods since last generation.
A) increase
B) therapy
C) shift
D) anxiety
This spurt of suburban expansion, however, does not alter the basic fact that the United States has become one of the most urban nations on the face of the earth. Census (人口调查) Bureau figures show that the rural population has been shrinking steadily since 1830. When the United States became a nation it had no large cities at all; today some fifty cities have populations of more than 258 ,000. Mammoth complexes of cities are developing in the area of the East Coast and the east north-central states, on the Pacific and Gulf coasts, and near the shores of the Great Lakes. Some sociologists now regard the entire 600-mile stretch between Boston and Washington, D. C.—an area holding a fifth of the country' s population—as one vast city or, as they call it, megalopolis.
A traditional American belief is that ______.
A．few people live on farms
B．the nation consists mainly of small towns and wide open spaces
C．the population is the greatest in the world
D．the United States is a nation of big cities
Among American financial commentators, it is almost universally accepted that shares always rise over the long run. And one ought to expect shares (which are risky) to deliver a higher return than risk free assets such as government bonds.
Nevertheless, investors ought also to remember the world's second largest economy, Japan. Its most popular stock-market average, the Nikkei 225, peaked at 38,915 on the last trading day of the 1980s; this week, nearly 18 years later, it is still only around 17,000, less than half its peak. Buying on the dips did not work either.
Professionals of the London Business School examined the record of 16 stock markets which were in continuous operation over the course of the 20th century. In itself, this selection showed survivorship bias by excluding the likes of Russia and China. The academies found that only three other countries could match the American record of having no 20-year periods with negative real returns.
Other investors were far less lucky. Japanese, French, German and Spanish investors all suffered instances where they had to wait 50—60 years to earn a positive real return. It was no good following the famous advice to "put the shares in a drawer and forget about them"; the furniture would not have lasted that long.
Besides survivorship bias, there is another problem with the belief that stock markets must always go up. Investors will keep buying until prices reach stratospheric(稳定的) levels. That clearly happened in Japan in the late 1980s, and after seven years, it is still not much more than half its peak level.
A significant proportion of the return from equities in the second half of the 20th century came from a re-rating of shares; investors were willing to pay a higher multiple for profits. But re-rating cannot continue forever.
If investors want a simple parallel with share prices, they need only mm to the American housing market. Back in 2005 an economic adviser to the president said", we've never had a decline in housing prices on a nationwide basis. What I think is more likely is that house prices will slow, maybe stabilize".
Lots of people took the same view and were willing to borrow (and lend) on a vast scale on the grounds that higher house prices would always bail them out. They are now counting their losses. Investors in equities should beware of over-committing themselves on the basis of a similar belief Just ask the Japanese.
The word "dips" (Line 1, Paragraph 1) means that ______.
A．a place where the surface of something reaches its climax.
B．a place where the surface of something goes up suddenly and rapidly.
C．a place where the surface of something goes down suddenly then goes up again.
D．a place where the surface of something reaches its lowest point then goes up.
Like the landing on the moon, the construction of a canal across the narrow Isthmus of Panama was a dream long before it became reality. As early as 1534, Charles I of Spain proposed a canal at Panama, but it would take nearly 400 years for builders to catch up with his imagination.
When the canal finally was proposed required all the creativity the twentieth century could muster. It was the largest public work ever attempted. Its engineers had to control a wild river, cut the continental divide, construct the largest dam and man made lake known to that date and swing the largest locks ever constructed from the biggest cement structures then poured. Along the way, two of the world's most devastating diseases had to be wiped out in one of their greatest strongholds. And all of this was to be done without the airplane or the automobile: Kitty Hawk rose into the head-lines in 1903 the same year the U. S. signed a treaty with Panama——and there was no road across the isthmus until the World War Ⅱ.
If Panama has had an unusual role in bygone dreams, it most certainly has a startling relationship to the hard facts of geography. The country is farther east than most people imagine——the canal and about half of Panama actually lie east of Miami. Because of the country's shallow "S" shape and east-west orientation, it has places where the sun rises in the Pacific and sets in the Atlantic. More significantly, Panama is squeezed into the narrowest portion of Central. At the canal, just 43 miles of land separate Atlantic and Pacific shores. Perhaps even more important, Panama offers the lowest point in the North American continental divide—— originally 312 feet above sea level at the canal's Culebra Cut. By comparison, the lowest pass in the United States is nearly 5,000 feet.
In scope and difficulty, the canals construction was most closely alike to that of the ______. ()
A．Suez Canal
B．trans-Siberian Railroad
C．Taj Mahal
D．pyramids of Egypt
The old idea that child prodigies(神童)"burn themselves" or "overtax their brains" in the early years, therefore, are prey to failure and (at worst)mental illness is just a myth. As a matter of fact, the outstanding thing that happens to bright children is that they are very likely to grow into bright adults.
To find this out, 1,500 gifted persons were followed up to their thirty-fifth year with these results.
On adult intelligence tests, they scored as high as they did as children. They were, as a group, in good health, physically and mentally. Eighty-four percent of their group were married and seemed content with their life.
About 70 percent had graduated from colleges, though only 30 percent had graduated with honors. A few had even flunked out (退学), but nearly half of these had returned to graduate.
Of the men, 80 percent were in one of the professions or in business, managers or semi- professional jobs. The women who had remained single had offices, business, or professional occupations.
The group had published 90 books and 1,500 articles in scientific, scholarly, and literary magazines and had collected more than 100 patents(专利权).
In a material .way they didn't do badly either. Average income was considerably higher among the gifted people, especially the men, than for the country as a whole, despite their comparative youth when last surveyed.
In fact, far from being strange, maladjusted(难以适应)people locked in an ivory tower, most of the gifted were turning their early promises into practical reality.
The main idea of the passage is ______.
A．how many gifted children turned successful when they grew up.
B．that bright children were unlikely to physically and mentally healthy.
C．that gifted children were most likely to become bright grown-ups.
D．that when the bright children grew up, they would become ordinary.
