[单项选择]Passage 3

The early retirement of experienced workers is seriously harming the U. S. economy, according to a new report from the Hudson Institute, a public policy research organization. Currently, many older experienced workers retire at an early age. According to the recently issued statistics, 79 percent of qualified workers begin collecting retirement benefits at age 62; if that trend continues, there will be a labor shortage that will hinder the economic growth in the twenty-first century. Older Americans constitute an increasing proportion of the population, according to the U. S. Census Bureau, and the population of those over age 65 will grow by 60% between 2001 and 2020. During the same period, the group aged 18 to 44 will increase by only 4%. Keeping older skilled workers employed, even part time, would increase U. S. economic outp A. constructive B. significant C. inconclusive D. detrimental 查看答案 更多"Passage 3 The early retir"的相关试题: [单项选择]Passage 3 The early retirement of experienced workers is seriously harming the U. S. economy, according to a new report from the Hudson Institute, a public policy research organization. Currently, many older experienced workers retire at an early age. According to the recently issued statistics, 79 percent of qualified workers begin collecting retirement benefits at age 62; if that trend continues, there will be a labor shortage that will hinder the economic growth in the twenty-first century. Older Americans constitute an increasing proportion of the population, according to the U. S. Census Bureau, and the population of those over age 65 will grow by 60% between 2001 and 2020. During the same period, the group aged 18 to 44 will increase by only 4%. Keeping older skilled workers employed, even part time, would increase U. S. economic outp A. do harm to younger generations B. end up with few or no benefits C. give play to their potentials D. shed light on social trends 查看答案 [单项选择]According to the passage, early American parishioners held which of the following views concerning parish demography A. Migration between towns stands in direct contrast with the accumulation of population in cities. B. Parish populations would grow at fairly equal rates, given the fact that those who left a parish in response to life course events were usually replaced. C. Migration between parishes was a rare enough phenomenon that it was unnecessary to keep records of it in any fashion. D. Parish populations often chose to remain sedimentary as a result of the homogeneity of the various countryside parishes. E. Parish populations owed their existence on the whole to the influx of populations due to life course events. 查看答案 [单项选择]Passage Four From early in her studies of parent-child interaction, Haight observed that many parents play an intentional role in encouraging their kids to pretend, and obviously see that role as important. "I was struck by the extent to which caregivers were pretending with their very young children, even before the children were displaying independent pretend play, " she said. In one study with a group of middle-class, white Americans, "the very consistent finding was that parents viewed pretending as important to their children’s development, viewed it as an enjoyable activity, and thought that their role was significant in helping their children learn how to pretend". Through subsequent research, Haight concluded that these parents might be on to something. "We’ve found that, in fact, when children pretended with their caregivers, it was more complex, more elaborate, and also more extended than when they pretended by themselves, " she said. "An A. can help children learn how to play B. is important to children’s development C. is a significant part of social culture D. should always be parent-centered 查看答案 [单项选择] Passage Three In early 2004 eight tiny sensors were dropped from a plane near a military base in California. After hit ting the ground, the sensors—also known as smart dust sensors organized themselves into a network and quickly detected a fleet of military vehicles on the ground. They determined the direction, speed and size of a series of military vehicles traveling along the road and later transmitted the data to a computer at a nearby base camp. Smart dust sensors are minicomputers—as small as a grain of rice in some cases—that can monitor and evaluate their physical environment and can relay the information via wireless, communication. They can monitor elements such as temperature, moisture, humidity, pressure, energy use, vibration, light, motion, radiation, gas, and chemicals. These devices will soon have many applications, such as use in emergency rescue. Software has been developed to run these minicomputers. A key feature A. giving troops their protective gear B. organizing themselves into a computer network C. detecting the movement of military vehicles nearby D. operating in remote and dangerous War zones 查看答案 [单项选择]Passage Four From early in her studies of parent-child interaction, Haight observed that many parents play an intentional role in encouraging their kids to pretend, and obviously see that role as important. "I was struck by the extent to which caregivers were pretending with their very young children, even before the children were displaying independent pretend play, " she said. In one study with a group of middle-class, white Americans, "the very consistent finding was that parents viewed pretending as important to their children’s development, viewed it as an enjoyable activity, and thought that their role was significant in helping their children learn how to pretend". Through subsequent research, Haight concluded that these parents might be on to something. "We’ve found that, in fact, when children pretended with their caregivers, it was more complex, more elaborate, and also more extended than when they pretended by themselves, " she said. "And they A. Confused. B. Surprised. C. Pleased. D. Annoyed. 查看答案 [单项选择]Passage Three In the early clays of the United States, postal charges were paid by the recipient and charges varied with the distance carried. In 1825, the United States Congress permitted local postmasters to give letters to mail carriers for home delivery, but these carriers received no government salary and their entire compensation on what they were paid by the recipients of individual letters. In 1847 the United States Post Office Department adopted the idea of a postage stamp, which of course simplified the payment for postal service but caused grumbling by those who did not like to prepay. Besides, the stamp covered only delivery to the post office and did not include carrying it to a private address. In Philadelphia, for example, with a population of 150000, people still had to go to the post office to get their mail. 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