单选题Hurry up. Don't keep Xiao Wang ______. A. wait B. waited C. waiting

单选题 In the United States, the{{U}} (21) {{/U}}to protect plant and animal{{U}} (22) {{/U}}has become a{{U}} (23) {{/U}}controversial and{{U}} (24) {{/U}}political issue since the{{U}} (25) {{/U}}of the Endangered Species Act in 1973. The act,{{U}} (26) {{/U}}to protect species' living areas, and policies that{{U}} (27) {{/U}}land and forests compete with economic interests. In the 1990' s, for example, the woodcutters in the Western United States were{{U}} (28) {{/U}}legally in their{{U}} (29) {{/U}}to cut trees for timber in the Cascade Mountains. The challenge was{{U}} (30) {{/U}}to protect the endangered spotted owl, whose remaining population occupies these forests and{{U}} (31) {{/U}}the intact, ancient forest for survival. The problematic situation set the interests of environmentalists{{U}} (32) {{/U}}those of corporations and of individuals who{{U}} (33) {{/U}}to lose jobs. After months of debate and legal battles, the fate of the woodcutters-and the owls was still undecided in mid-1992. Similar{{U}} (34) {{/U}}exist between the developed and the developing nations. Many people in industrialized nations, for example, believe that developing nations in tropical regions should do more to protect their rain forests and other natural areas. But the developing countries may be{{U}} (35) {{/U}}, with populations growing so rapidly that using the land is a{{U}} (36) {{/U}}to temporarily avoid worsening poverty and starvation. Many of the changes to Earth that{{U}} (37) {{/U}}scientists have the potential to{{U}} (38) {{/U}}the planet of its biological richness. The destruction of Earth' s ozone layer, for example, could{{U}} (39) {{/U}}to the general process of impoverishment by allowing ultra-violet rays to harm plants and animals. And global warming could{{U}} (40) {{/U}}species unable to quickly adapt to changing climates. Clearly, protecting will come only through coordinated international efforts to control human population, stabilize the composition of the atmosphere, and preserve intact Earth' s complex web life.

单选题 Fifteen years ago, I entered The Boston Globe, which was a temple to me then. It wasn't easy getting hired. I had to fight my way into a dime-a-word job. But once you were there, I found, you were in. Globe jobs were for life--guaranteed until retirement. For 15 years I had prospered there-moving from all ordinary reporter to foreign correspondent and finally to senior editor. I would have a lifetime of security if I stuck with it. Instead, I had made a decision to leave. I entered my boss's office. Would he rage? I wondered. He had a famous temper. "Matt, we have to have a talk. "I began awkwardly. "I came to the Globe when I was twenty-four. Now I'm forty. There's a lot I want to do in life. I'm resigning." "To another paper?" he asked. I reached into my coat pocket, but didn't say anything, not trusting myself just then. I handed him a letter that explained everything. It said that I was leaving to start a new media company. That the Globe had taught me in a thousand ways. That we were at a rare turning point in history. I wanted to be directly engaged in the change. "I'm glad for you," he said, quite out of my expectation. "I just came from a board of directors meeting and it was seventy-five percent discouraging news. Some of that we can deal with. But much of it we can't," he went on. "I wish you all the luck in the world," he concluded. "And if it doesn't work out, remember, your star is always high here." Then I went out of his office, walking through the newsroom for more good-byes. Everybody was saying congratulations. Everybody--even though I'd be risking all on all unfamiliar venture: all the financial security I had carefully built up. Later, I had a final talk with Bill Taylor, chairman and publisher of The Boston Globe. He had turned the Globe into a billion-dollar property. "I'm resigning, Bill," I said. He listened while I gave him the story. He wasn't looking angry or dismayed either. After a pause, he said, "Golly, I wish I were in your shoes."

单选题It can be inferred from the passage that the producers are focusing on the adolescent market because

单选题This is a book ______ sports. [A] in [B] on [C] for

单选题The most convincing evidence for the importance of adult influence on a child's intelligence comes from a study of "at risk" children. Ramey and Frances Campbell of the University of North Carolina (1) with children born into poverty-line households. The children entered the study by four months (2) age. During the study, one group spent the day in a center where teachers used games and songs to (3) the infants. Another group had no such (4) , but they were given nutritional supplements in (5) During preschool years the children in the early-education group showed I.Q. advantages of ten to 20 points. The highest-risk children showed the (6) gains, and at age 15 they had higher reading and math scores. What (7) for these gains? Ramey and other scientists say early childhood experiences (8) brain growth. An infant is born (9) billions of brain cells called neurons. Some are wired to other cells before birth to regulate the (10) of life, such as heartbeat and breathing. Others are waiting to be wired to (11) him or her interpret and respond to the outside world. Experience dictates the hookups. As the child (12) , cells reach out and set up pathways to other cells needed to determine a (13) . For instance, the neurons in the eye send branches to the (14) cortex, which interprets (15) the eye sees and, via other branches, (16) the person to react to what is seen. Each time an experience is repeated, the (17) are strengthened. The first two years of life are an explosion of brain (18) and connections. By age two the (19) has more than 300 trillion connections. At the same time, cells that aren't being connected or used are being (20) .

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单选题Advances in interfaces—the physical way we react with computers—and other techniques of controlling computers will supplement the role of the traditional keyboard and mouse. Technologies in development include surfaces that allow fingertip control of on-screen objects and devices that sense—and react to—movement. But we should assess human-computer interaction (HCI) to ensure that we retain control of key decision-making processes, one report suggests. Display technologies will soon allow us to fix screens of all sizes in a variety of fabrics. In the near future we will still be reading paper books and magazines; but we"ll also be using paper-like digital screens to distribute content. Cheap and easily-accessed digital storage allows consumers to electronically record and store more aspects of our lives—allowing us to share information and interact with people across the globe. This hyper-connectivity liberates us from fixed telephone lines, desks and offices, while advances in robotics develop the computer"s ability to learn and make decisions. "New computing technology is tremendously exciting," said Tom Rodden, Professor at the University of Nottingham. "But the interaction between humans and computers is evolving into a complex ecosystem where small changes can have far-reaching consequences. While new interfaces and hyper-connectivity mean we are increasingly mobile, we can see that they are obscuring the line between work and personal space." "Huge storage capabilities raise fundamental privacy issues around what we should be recording and what we should not. The potential of machine learning might well result in computers increasingly making decisions on our behalf. It is imperative that we combine technological innovations with an understanding of their impact on people." The report argues that without proper monitoring and assessment it is possible that we may no longer be in control of ourselves or the world around us. This potentially places the computer on a collision course with basic human values and concepts such as personal space, society, identity, independence, perception, intelligence and privacy. The report gives recommendations for the HCI community to adopt to ensure that human values inform future development. These include educating young people so that they understand HCI and the impact of computer advances early on and engaging with governments, policy-makers and society as a whole to provide counsel and give advance warning of the emerging implications of new computing ecosystems. "Computing has the potential to enhance the lives of billions of people around the world. We believe that if technology is to truly bring benefit to humanity, then human values and the impact of technology must be considered at the earliest possible opportunity in the technology design process," said Abigail Sellen. one of the editors of the report.

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单选题Though the social problems Jerry Springer talks about appear distasteful, the audience _________.A. remain fascinated by them C. remain indifferent to themB. are ready to face up to them D. are willing to get involved in them