相关考题
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单项选择题
What is the future for cities? Why does one inner-city neighborhood become a slum and another a high-class district? Why does one city attract new shoppers and visitors while another languishes? Camden, New Jersey, displays the strong contrasts that characterize American urban areas. The central city of Camden houses an isolated underclass, while suburban Camden County prospers. The population of the city of Camden has declined from 117,000 in 1960 to less than80,000 today. Nearly 85 percent of the city's residents are black and Hispanic, while the white population has declined from 90,000 in 1960 to 10,000 today. Only 1 percent of the households remaining have annual incomes of more than $ 50,000, compared with 20 percent in the rest of the country and 10 percent among all black h6useholds. More than 40 percent of Camden's residents are under eighteen, closer to the level found in developing countries than to the rest of the United States. Job prospects are not promising for these young people, because more than half have left school without obtaining a high-school diploma. In the past, Camden's youths could find jobs in factories that produced Campbell's soups, Esterbrook pens, and RCA Victor records, radios, and televisions, but the city has lost 90 percent of its industrial jobs. The Esterbrook and Campbell factories in Camden are closed, though Campbell's corporate offices remain; General Electric now operates the former RCA factory but with a labor force at only 15 percent of the level during the 1960s. Camden' s unemployment rate is more than twice the national average. As Camden's population and industries decline, few shops have enough customers to remain open. The city once had thirteen movie theaters, but none are left. The murder rate soared after gangs carved up the city into districts during the mid-1980s to control cocaine trafficking. Meanwhile, Camden County -- excluding the city -- has grown from 275,000 in 1960 to more than 400,000 today. Cherry Hill has more than 75,000 residents today, compared to less than 10,000 in 1960, and will surpass Camden as the largest city in the county before the end of the decade. About 85 percent of Cherry Hill's high-school graduates go on to college. Cherry Hill has attracted so many new jobs that the major obstacle to further economic growth is a shortage of qualified workers. Camden' s mismatch between the locations of people, jobs, resources, and services exemplifies the urban crisis throughout the United States, as well as in other countries. Geographers help us to understand why these patterns arise, and what can be done about them.Which of the following is NOT true?A．Camden County is larger than the city of Camden.B．Cherry Hill's economy is sluggish.C．The white people have moved to the suburbs.D．General Electric now employs less workers than it used to.
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单项选择题
For a long time we have worked hard at isolating the individual family. This has increased the mobility of individuals; and by encouraging young families to break away from the older generation and the home community, we have been able to speed up the acceptance of change and the rapid spread of innovative behavior. But at the same time we have burdened every small family with tremendous responsibilities once shared within three generations and among a large number of people - the nurturing of small children, the initiation of adolescents into adulthood, and care of the sick and disabled and the protection of the aged. What we have failed to realize is that even as we have separated the single family from the larger society, we have expected each couple to take on a range of obligations that traditionally have been shared within a family and a wider community. So all over the world there are millions of families left alone, as it were, each in its own box—parents faced with the specter of what may happen if either one gets sick, children fearful that their parents may end their quarrels with divorce, and empty-handed old people without any role in the life of the next generation. Then, having reduced little by little to almost nothing the relationship between families and the community, when families get into trouble because they cannot accomplish the impossible, we turn their problems over to impersonal social agencies, which can act only in a fragmented way because they are limited to patchwork programs that often are too late to accomplish what is most needed. Individuals and families do get some kind of help, but what they learn and what those who work hard within the framework of social agencies convey, even as they try to help, is that families should be able to care for themselves.According to the author, when young families are isolated,______.A．old people can easily accept the changeB．people can move from place to placeC．individuals can hardly become innovativeD．economy develops at high speed
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单项选择题
Most people think of lions as strictly African beasts, but only because they've been killed off almost everywhere else. Ten thousand years ago lions spanned vast sections of the globe, and so did people, who--as they multiplied and organized—put pressure on competitors at the top of the food chain. Now lions hold only a small fraction of their former habitat, and Asiatic lions, a subspecies that split from African lions perhaps 100,000 years ago, hang on to an almost impossibly small slice of their former domain. India is the proud steward of these 300 or so lions, which live primarily in a 560-square-mile (1,450-square-kilometer) sanctuary. It took me a year and a half to get a permit to explore the entire Gir Forest—and no time at all to see why these lions became symbols of royalty and greatness. A tiger will slink through the forest unseen, but a lion stands its ground, curious and unafraid—lionhearted. Though they told me in subtle ways when I got too close, Gir's lions allowed me unique glimpses into their lives during my three months in the forest. It's odd to think that they are threatened by extinction; Gir has as many lions as it can hold—too many, in fact. With territory in short supply, lions prowl the periphery of the forest and even leave it altogether, often clashing with people. That's one reason India is creating a second sanctuary. There are other pressing reasons: outbreaks of disease or natural disasters. In 1994 canine distemper killed more than a third of Africa' s Serengeti ]ions—a thousand animals—a fate that could easily befall Gir's cats. These lions, saved by a prince at the turn of the 20th century, are especially vulnerable to disease because they descend from as few as a dozen individuals. 'If you do a DNA fingerprint, Asiatic lions actually look like identical twins,' says Stephen O'Brien, a geneticist who has studied them. Yet the perils are hidden, and you wouldn't suspect them by watching these lords of the forest. The lions exude vitality, and no small measure of charm. Though the gentle intimacy of play vanishes when it's time to eat, meals in Gir are not necessarily frenzied affairs. For a mother and cub sharing a deer, or a young male relishing an antelope, there's no need to fight for a cut of the kill. Prey animals are generally smaller in Gir than they are in Africa, and hunting groups tend to be smaller as well. The lions themselves aren't as big as African lions, and they have shorter manes and a long fold of skin on their undersides that many lions in Africa don't have.What impressed the author most when he went to watch the lions in the Gir Forest?A．The lions were on the brink of extinction.B．They were suffering from a fatal disease.C．They allowed him to see their vitality and charm at close quarters.D．Mother lion and her cub shared a deer.
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