单选题A. secureB. pureC. failureD. cure

单选题The launching of China's first manned-spaceship was televised ______ by CCTV.

单选题It is said ______ Mr. Tom has arrived in New York.A. thatB. whichC. whatD. why

单选题Money, time and health concerns loom largely in the poll of more than 1,100 women who have at least one living parent . About 20 % said they were very happy. More than half of the women were concerned about an elderly relative"s health. Those who had sick relatives were much more likely to feel depressed and to worry about having enough time for family member.

单选题When his depression got worse, he decided to seek______in the hospital.

单选题 English as a Foreign Language Who taught you to speak English? Your parents, while you were a young child? Your teachers at school? Perhaps even the BBC as a grown-up. Whoever it was, somehow you have developed an understanding of what is rapidly becoming a truly global language. There are now about 376 million people who speak English as their first language, and about the same number who have learnt it in addition to their mother tongue. There are said to be one billion people learning English now and about 80% of the information on the Internet is in English. Is this a good thing, or a bad thing? Should we celebrate the fact that more and more of us can communicate, using a common language, across countries and cultures (文化)? Or should we worry about the dangers of "mono-culturalism", a world in which we all speak the same language, eat the same food and listen to the same music? Does it matter if an increasing number of people speak the same language? On the contrary (相反), I would have thought—although I have never accepted the argument that if only we all understood each other better, there would be fewer wars. Ask the people of India (where many of them speak at least some English) and Pakistan (the same situation with India)… If we all speak English, will we then all start eating McDonalds hamburgers? Surely not. If English becomes more dominant(占主导地位的) ,will it kill other languages? I doubt it. When I travel in Africa or Asia, I am always surprised by how many people can speak not only their own language but often one or more other related languages, as well as English and perhaps some French or German as well. When we discussed this on Talking Point a couple of years ago, we received a wonderfully poetic email from a listener in Ireland. "The English language is a beautiful language. Maybe it's like a rose," he said. "But who would ever want their garden just full of roses?" Well, I love roses, and I think they make a beautiful addition to any garden. But the way I see it, just by planting a few roses, you don't necessarily need to pull out everything else. If more and more people want to plant English roses, that's fine by me.

单选题Much of the American anxiety about old age is a flight from the reality of death. One of the striking qualities of the American character is the unwillingness to face either the fact or meaning of death. In the more somber tradition of American literature-from Hawthorne and Melville and Poe to Faulkner and Hemingway—one finds a tragic depth that belies the surface thinness of the ordinary American death attitudes. By an effort of the imagination, the great writers faced problems that the culture in action is reluctant to face—the fact of death, its mystery, and its place in. the back-and-forth shuttling of the eternal recurrence. The unblinking confrontation of death in Greek time, the elaborate theological patterns woven around it in the Middle Ages, the ritual celebration of it in the rich, peasant cultures of Latin and Slavic Europe and in primitive cultures; these are difficult to find in American life. Whether through fear of the emotional depths, or because of a drying up of the sluices of religious intensity, the American avoids dwelling on death or even corning to terms with it; he finds it morbid and recoils from it, surrounding it with word avoidance (Americans never die; they "pass away,") and various taboos of speech and practice. A "funeral parlor" is decorated to look like a bank; everything in a funeral ceremony is done in hushed tones, as if it were something furtive, to be concealed from the world; there is so much emphasis on being dignified that the ceremony often loses its quality of dignity. In some of the primitive cultures, there is difficulty in understanding the muses of death; it seems puzzling and even unintelligible. Living in a scientific culture, Americans have a ready enough explanation of how it comes, yet they show little capacity to come to terms with the fact of death itself and with the grief that accompanies it. "We jubilate over birth and dance at weddings", writes Margaret Mead, "but more and more hustle the death off the scene without ceremony, without an opportunity for young and old to realize that death is as much a fact of life as is birth". And one may add, even in its hurry and brevity, the last stage of an American' s life—the last occasion of this relation to his society—is as standardized as the rest.

单选题{{B}}Passage Three{{/B}} A new biotechnology procedure that could become commercially available in as little as two to four years is "transgenesis", which permits scientists to create an animal with specific traits by adding, removing, inactivating, or repairing genes in an embryo. The additional genes can come from any source. For example, if a gene of interest occurs in mosquitoes—say, one that codes for resistance to a certain disease—it can be removed and places in the embryo of a farm animal. The several strains of commercially useful transgenic farm animals that will probably emerge in the next few years could include leaner pigs, poultry resisting to influenza or other deadly diseases, sheep with wool that is easier to wash, and goats that produce valuable pharmaceuticals in their milk. The simplest way to make transgenic animals is to inject a gene into a one-cell embryo and then implant the embryo in another animal. Under the right conditions, the new gene joins one of the embryo's strands of genes. Each cell created as the embryo divides gets a copy of the new gene. An alternative technique is to incorporate the gene into a type of virus known as a retrovirus that has bean modified so it cannot reproduce itself after entering a cell. The virus, which cannot cause disease, delivers the gene to the cell's nucleus- Often this method is better than gene injection because a retrovirus always delivers just one gene, and the gene is always undamaged and complete.

单选题The artist has made a______of combining the first-rate photograph and design with advanced technology in every piece of work he produces.

单选题The ground is wet. It______last night.

单选题Top marathon runners tend to be lean and light, star swimmers are long thighs with huge feet and gold medal weightlifters are solid blocks of muscle with short arms and legs. So, does your physical shape—and the way your body works—fit you for a particular sport? Or does your body develop a certain way because of your chosen sport? "It's about 55:45, genes to the environment," says Mike Rennie, professor of clinical physiology at Britain's University of Nottingham Medical School. Rennie cites the case of identical twins from Germany, one of whom was a long-distance athlete, the other a powerful sportsman, so, "They look quite different, despite being identical twins." Someone who's 1.5-meters tall has little chance of becoming an elite basketball player. Still, being over two meters tall won't automatically push you to Olympic gold." Unless you have tactical sense where needed, unless you have access to good equipment, medical care and the psychological conditions, and unless you are able to drive yourself through pain, all the physical strength will be in vain," said Craig Sharp, professor of sports science at Britain's Brunel University. Jonathan Robinson, an applied sports scientist at the University of Bath's sports development department, in southwest England, points to the importance of technique. "In swimming only 5-10 per cent of the propelling force comes from the legs, so technique is vital. " Having the right physique for the right sport is a good starting point. Seventeen years ago, the Australian Institute of Sport started a national Talent Search Program, which searched schools for 14- 16-year-olds with the potential to be elite athletes. One of their first finds was Megan Still, world champion rower. In 1987, Still had never picked up an oar in her life. But she had almost the perfect physique for a rower. After intensive training, she won gold in women's rowing in the 1996 Atlanta Olympics. Other countries have followed the Australian example. Now the explosion of genetic knowledge has meant that there is now a search, not just for appropriate physique but also for "performance genes. /

单选题______ so much electrical equipment, wood and paper in one place, there is a danger of fire.A. ForB. InC. withD. By

单选题An international treaty signed several years ago bans trade in plants and animals of endangered species.

单选题I______him that I would help him if he had any difficulty in carrying out the task.

单选题（清华大学2008年试题） The changes in globally averaged temperature that have occurred at the Earth's surface over the past century are similar in size and timing to those【1】by models that take into account the combined influences of human factors and solar variability. To【2】the question of attribution requires the【3】of more powerful and complex methods, beyond the use of global averages alone. New studies have focused on【4】maps or patterns of temperature change in【5】and in models. Pattern analysis is the cli-matologically equivalent of the more comprehensive tests in the medical analogy mentioned【6】, and makes it possible to achieve more definitive【7】of observed climate changes to a particular cause or causes. The expected influence of human activities is thought to be much more complex than uniform warming over the entire surface of the Earth and over the whole【8】cycle. Patterns of change over space and time therefore provide a more powerful【9】technique. The basic idea【10】pattern-based approaches is that different【11】causes of climate change have different characteristic patterns of climate response or fingerprints. Attribution studies seek to【12】a fingerprint match between the patterns of climate change【13】by models and those actually observed. The most recent assessment of the science suggests that human activities have led to a discernible【14】on global climate and that these activities will have an increasing influence on future climate. The burning of coal, oil and natural gas, as well as various agricultural and industrial practices, are【15】the composition of the atmosphere and contributing to climate change. These human activities have led to increased atmospheric【16】of a number of greenhouse gases, including carbon dioxide, methane and so on in the lower atmosphere. Human activities, such as the burning of fossil, have also increased the【17】of small particles in the atmosphere. These particles can change the【18】of energy that is absorbed and reflected by the atmosphere. They are also believed to modify the【19】of air and clouds, changing the amount of energy that they absorb and reflect. Intensive studies of the climatic effects of these particles began only recently and the overall【20】is uncertain. It is likely that the net effect of these small particles is to cool the climate and to partially offset the warming of increasing concentrations of greenhouse gases.

单选题The lady was experienced enough to maintain her ______ despite her blunders.

单选题 The first true piece of sports equipment that man invented was the ball. In ancient Egypt, as everywhere, pitching stones was a favorite children's game. But a badly thrown rock could hurt a child. Looking for something less dangerous to throw, the Egyptians made what were probably the first balls. At first, bails were made of grass or leaves held together by vines. Later they were made of piece of animal skin sewed together and stuffed with feathers or hay. Even though the Egyptians were warlike, they found time for peaceful games. Before long they had developed a number of ball games, each with its own set of rules. Perhaps they played ball more for instruction than for fun. Ball playing was thought of mainly as a way to teach young men the speed and skill they would need for war.

单选题In 1993, a mall security camera captured a shaky image of two 10-year-old boys leading a much smaller boy out of a Liverpool, England, shopping center. The boys lured Jarfies Bulger, away from his mother, who was shopping, and led him on a long walk across town. The excursion ended at a railroad track. There, inexplicably, the older boys tortured the toddler, kicking him, smearing paint on his face and pummeling him to death with bricks before leaving him on the track to be dismembered by a train. The boys, Jon Venables and Robert Thompson, then went off to watch cartoons. Today the boys are 18-year-old men, and after spending eight years in juvenile facilities, they have been deemed fit for release, probably this spring. The dilemma now confronting the English justice system is how to reintegrate the notorious duo into a society that remains horrified by their crimes and skeptical about their rehabilitation. Last week Judge Elizabeth Butler-Sloss decided the young men were in so much danger that they needed an unprecedented shield to protect them upon release. For the rest of their lives, Venables and Thompson will have a right to anonymity. All English media outlets are banned from publishing any information about their whereabouts or the new identities the government will help them establish. Photos of the two or even details about their current looks are also prohibited. In the U. S., which is harder on juvenile criminals than England, such a ruling seems inconceivable. "We're clearly the most punitive in the industrialized world," says Laurence Steinberg, a Temple University professor who studies juvenile justice. Over the past decade, the trend in the U. S. has been to allow publication of ever more information about underage offenders. U. S. courts also give more weight to press freedom than English courts, which, for example, ban all video cameras. But even for Britain, the order is extraordinary. The victim's family is enraged, as are the ever eager British tabloids. "What right have they got to be given special protection as adults?" asks Bulger's mother Denise Fergus. Newspaper editorials have insisted that citizens have a right to know if Venables or Thompson move in next door. Says conservative Member of Parliament Humfrey Malins: "It almost leaves you with the feeling that the nastier the crime, the greater the chance for a passport to a completely new life./

单选题While the population of the United States includes a great variety of racial and ethnic backgrounds, Korea's population is______.