单选题The work was almost complete when we received the order to ______ no further with it. A. progress B. proceed C. prompt D. promote

单选题Only by understanding the Web deeply ______hope for people to grasp its full potential.

单选题For an increasing number of students at American universities, Old is suddenly in. The reason is obvious: the graying of America means jobs. Coupled with the aging of the baby-boom (生育高峰) generation, a longer life span means that the nation's elderly population is bound to expand significantly over the next 40 years. By 2040, 25 percent of all Americans will be older than 65, up from 14 percent in 1995. The change poses profound questions for government and society, of course. But it also creates career opportunities in medicine and health professions, and in law and business as well. "In addition to the doctors, we're going to need more sociologists, biologists, urban planners and specialized lawyers," says Professor Edward Schneider of the University of Southern California's (USC) School of Gerontology (老年学). Lawyers can specialize in "elder law", which covers everything from trusts and estates to nursing-home abuse and age discrimination (歧视). Businessmen see huge opportunities in the elder market because the baby boomers, 74 million strong, are likely to be the wealthiest group of retirees in human history. "Any student who combines an expert knowledge in gerontology with, say, an MBA or law degree, will have a license to print money," one professor says. Margarite Santos is a 21-year-old senior at USC. She began college as a biology major but found she was "really bored with bacteria". So she took a class in gerontology and discovered that she liked it. She says, "I did volunteer work in retirement homes and it was very satisfying./

单选题 To us it seems so natural to put up an umbrella to keep the water off when it rains. But actually the umbrella was not invented as protection against rain. Its first use was as a shade against the sun. Nobody knows who first invented it, but the umbrella was used in very ancient times. Probably the first to use it were the Chinese, was back in the eleventh century B. C. We know that the umbrella was used in ancient Egypt and Babylon as a sunshade. And there was a strange thing connected with its use: it became a symbol of honor and authority. In the Far East in ancient times, the umbrella was allowed to be used only by royalty or by those in high offices. In Europe, the Greeks were the first to use the umbrella as a sunshade. And the umbrella was in common use in ancient Greece. But it is believed that the first persons in Europe to use the umbrella as protection against rain were the ancient Romans. During the Middle Ages, the use of the umbrella practically disappeared. Then it appeared again in Italy in the late sixteenth century. And against it was considered a symbol of power and authority. By 1680, the umbrella appeared in France and later on in England. By the eighteenth century, the umbrella was used against rain throughout most of Europe. Umbrellas have not changed much in style during all this time, though they have become much lighter in weight. It wasn't until the twentieth century that women's umbrellas began to be made in a whole variety of colors.

单选题Joy was now having her hair done, seated on a mat on the floor.

单选题The multi-billion-dollar Western pop music industry is under fire. It is being blamed by the United Nations for the dramatic rise in drug abuse worldwide. "The most worrisome development is a culture of drug-friendliness that seems to be gaining prominence (显著)," said the UN's 13-member International Narcotics Control Board in a report released in late February 1998. The 74-page study says that pop music, as a global industry, is by far the most influential trend-setter for young people of most cultures. "Some lyrics advocate the smoking of marijuana (大麻) or taking other drugs, and certain pop stars make statements and set examples as if the use of drugs for non-medicinal purposes were a normal and acceptable part of a person's lifestyle," the study says. Surprisingly, says the Board, the effect of drug-friendly pop music seems to survive despite the occasional shock of death by overdose (过量用药). "Such incidents tend to be seen as an occasion to mourn the loss of a role model, and not an opportunity to confront the deadly effect of 'recreational' drug use," it notes. Since the 1970s, several internationally famous singers and movie stars—including Elvis Presley, Janice Joplin, John Belushi, Jimi Hendrix, Jonathan Melvin and Andy Gibbs—have died of either drug abuse or drug related illnesses. With the globalization of popular music, messages tolerating or promoting drug abuse are now reaching beyond their countries of origin. "In most countries, the names of certain pop stars have become familiar to the members of every household," the study says. The UN study also blames the media for its description of certain drug issues—especially the use of marijuana and issues of liberalization and legalization—which encourages, rather than prevents, drug abuse. "Over the last years, we have seen how drug abuse is increasingly regarded as being acceptable or even attractive," says Hamid Ghodse, president of the Board. "Powerful pressure groups run political campaigns aimed at legalizing controlled drugs," he says. Ghodse also points out that all these developments have created an environment which is tolerant of or even favorable to drug abuse and spoils international drug prevention efforts currently underway. The present study, be says, focuses on the issue of demand reduction and prevention within an environment that has become tolerant of drug abuse. The Board calls on governments to do their legal and moral duties, and to act against the pro-drug messages of the youth culture to which young people increasingly are being exposed.

单选题When the subject is money, women often cling to two persistent stereotypes, one a pleasant dream, the other a nightmare. In the (1) , they hate fantasies that a white (2) will provide happily-ever-after financial security. (3) the nightmare, by contrast, they fear that an impoverished retirement could (4) them into bag ladies on the street. Now (5) advisers and managers are (6) forces to change those images. In a proliferation of books, seminars, conferences, web (7) , and investment clubs, they are (8) out to women, helping them to become financially savvy and economically (9) Prince Charming, they warn, may not come. "If and when he does show (10) , he may have less than you do," quips Brooke Stephens, a financial adviser.

单选题The registrar(管注册的人) has requested that each student and teacher (sign) (their name) on the grade sheet before (submitting) (it).

单选题Behind these obvious Uridiculous/U motives to anti-Jewish attitudes there was a deeper cause.

单选题{{B}}16-20{{/B}} Many people believe the glare from snow causes snow blindness. Yet, dark glasses or not they find themselves suffering from headaches and watering eyes, and even snowblindness, when exposed to several hours of "snow light". The United States Army has now determined that the glare from snow does not cause snowblindness in troops in a snow-covered country. Rather, a man's eyes frequently find nothing to focus on in a broad expanse of a snow-covered area. So his gaze continually shifts and jumps back and forth over the entire landscape in search of something to look at. Finding nothing, hour after hour, the eyes never stop searching and the eyeballs become sore and the eye muscle aches. Nature balances this annoyance by producing more and more liquid which covers the eyeballs. The liquid covers the eyeballs in increasing quantity until vision blurs. And the result is total, even though temporary, snowblindness. Experiments led the Army to a simple method of overcoming this problem. Scouts ahead of a main body of troops are trained to shake snow from evergreen bushes, creating a dotted line as they cross completely snow-covered landscape. Even the scouts themselves throw lightweight, dark-colored objects ahead on which they too can focus. The men following can then see something. Their gaze is arrested. Their eyes focus on a bush and having found something to see, stop searching through the snow-blanketed landscape. By focusing their attention on one object at a time, the man can cross the snow without becoming hopelessly snowblind or lost. In this way the problem of crossing a solid white area is overcome.

单选题I would have gone to visit him in the hospital had it been at all possible, but I ______ fully occupied the whole of last week. A. were B. was C. have been D. having been

单选题Passage Two Global energy demand is expected to triple by mid-century. The earth is unlikely to run out of fossil fuels by then, given its vast reserves of coal, but it seems unthinkable that we will continue to use them as we do now. It's not just a question of supply and price or even of the disease caused by filthy air. The terrorist assault on the World Trade Center raises other scary scenarios: how much easier would it be to crack open the Trans-Alaska pipeline and how much deadlier would it be to bomb a nuclear plant than to attack a wind farm? Skeptics may recall the burst of enthusiasm for conservation and renewable power when oil prices quadrupled in the 1970s. State-funded energy research and development surged, while tax incentives boosted solar, wind and other alternatives to petroleum and the atom. But when oil supplies loosened and prices dropped in the early 1990s, governments lost interest. In the state of California, subsidies evaporated, pushing wind companies into bankruptcy. Clean energy has long way to go. Only 2.2% of the world's energy comes from "new" renewables such as small hydroelectric dams, wind, solar and geothermal. How to boost that share—and at what pace—is debated in industrialized nations—from Japan, which imports 99.7 % of its oil, to Germany, where the nearby Chernobyl accident turned the public against nuclear plants, to the U.S., where the Bush Administration has strong ties to the oil industry. But the momentum toward clean renewables is undeniable. How soon we reach an era of clean, inexhaustible energy depends on technology. Solar and wind energies are intermittent: When the sky is cloudy or the breeze dies down, fossil fuel or nuclear plants must kick into compensate. But scientists are working on better ways to store electricity from renewable sources. While developed nations debate how to fuel their power plants, however, some 1.6 billion people—a quarter of the globe's population—have no access to electricity or gasoline. Many spend their days collecting firewood and cow dung, burning it in primitive stoves that belch smoke into their lungs. To emerge from poverty, they need modern energy. And renewables can help. From village-scale hydropower to household photovoltaic systems to bio-gas stoves that convert dung into fuel. Ultimately, the earth can meet its energy needs without fouling the environment. "But it won't happen," asserts Thomas Johansson, an energy adviser to the United Nations Development Program, "without political will." To begin with, widespread government subsidies for fossil fuels and nuclear energy must be dismantled to level the playing field for renewables. Moreover, government should pressure utility to meet targets for renewable sources of energy.

单选题They have wide connections with an annual ______ of about 5 million dollars.

单选题You can see the whole of Chinese history at______ in April in Anhui Museum.

单选题What do the storytellers tell us about?

单选题During the summer session there will be a revised schedule of services for the university community. Specific changes for intercampus bus services, summer hours for the cafeteria, the infirmary (校医院) and recreational and athletic facilities will be posted on the bulletin board outside of the cafeteria. Weekly movie and concert schedules which are in the process of being arranged will be posted each Wednesday outside of the cafeteria. Intercampus buses will leave the main hall every hour on the half hour and make all of the regular stops on their route around campus. The cafeteria will serve breakfast, lunch, and early dinner from 7 a.m. to 7 p. m. during the week and from noon to 7 p.m. on weekends. The library will maintain regular hours during the week, but shorter hours on Saturdays and Sundays. The weekend hours are from noon to 7 p. m. All students who want to use the library borrowing services and recreational athletic, and entertainment facilities must have a valid summer identification card. This announcement will also appear in the next issue of the student newspaper.

单选题Communication is the sending of information or news from one person to another. If human beings could not communicate with one another, each person would have to learn everything for himself. Although animals as well as men can communicate, so far as we know, they can express only the simple emotions like pain, joy, fear, hunger, anger and love. Some animals have a more advanced form of language using sounds, and others use a wide range of sounds and face movements, but we still have much to learn about these animal languages. Speech is the most important means of communication between people. But it is not the only one. Nor is it the oldest. We use facial expressions, gestures and hand movements to express our feelings and to send signals to other people. Animals use this "body language" a great deal. The sign language used by deaf people is an example of communication without speech,while blind people communicate largely through touch and hearing.

单选题Two scores more, ______ we could have won the last game. A. but B. so C. and D. or

单选题In order to live the kind of life we want and to be the person we want to be, we have to do more than just ______ with events. A. put up B. set up C. turn up D. make up