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How Did She Conquer the Americans ？
African-American talk show queen Oprah Winfrey is the world&39;s most powerful celebrity, according to Forbes magazine.46
Winfrey, 51, draws 30 million viewers weekly in the United States. Her talk show reaches 112 countries.She earned US$225 million over the past 12 months to rank second in celebrity riches.
The annual Forbes list gives most weight to annual earnings.47
"After 21 years, her exciting chat show still rules the airwaves. It created new celebrities and hundreds of millions of dollars in profits, " the magazine said. Winfrey is most popular with her popular talk show "The Oprah Winfrey Show" . She can always attract the superstars and let them open up to her intimate interviewing
style,
Last month, American actor Tom Cruise, 42, surprised fans when he celebrated his new romance with 26-year-old actress Katie Holmes. He jumped up and down, shouting "I&39;m in love." Only a few years ago, Cruise and his ex-wife Nicole Kidman appeared separately on the same show telling the news of their divorce48Winfrey&39;s approach appears to be simple. She is in pursuit of self-improvement and self-empowerment (自强) . This has proved to be just what people, especially women, want.
Winfrey often talks about her personal secrets on her show. That pulls in viewers. For example, she revealed that she had been sexually abused as a child, and has spoken freely of her struggle with her weight.
Winfrey was born to a poor family in Mississippi in 195449At the age of 19, she became the youngest person and the first African-American woman to anchor (主持 ) a news program.
Her success has not just been on the screen. Her media group includes a women&39;s TV network and websites for women. Winfrey&39;s work has extended to social change.50She testified before the US Senate to establish a national database of dangerous child abusers. President Bill Clinton later signed "Oprah Bill"into law.
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The author is most concerned with the possibility that after a few decades__________．
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The New Technology Application
On a more mundane level, third-generation mobile telephones, despite all the delays and the billions squandered on 3G licenses by telecom firms, are still expected to offer consumers high-speed, always on mobile internet access, complete with video, in the next few years.Rapidly proliferating "WiFi" networks already offer wireless access on a local basis. Tiny tracking chips called radio-frequency identification devices are being used as pet passports.Soon they will be small, powerful and cheap enough to be implanted into everything form. humans to milkcartons recording and transmitting real-time medical data, or serving as a form. of inventory control.Sensors of every kind, including video cameras, should also become much smaller and cheaper.Forrester Research, a technology consultancy, predicts that 14 billion such devices will be connected to the internet by 2005.
How rapidly such new technology is introduced will depend on a number of factors the state of the economy, the supply of investment capital and the appetite of consumers for new products or services ! Fortunes will be made and lost many times over.But whatever happens, the power of computing and communications look set to continue to grow, and its price to fall, at a steady rate for the next few decades.That will make it possible, at least in rich countries, to record most human interactions, wherever and whenever they take place, and to store and analyze this ocean of data at low cost.
For the sake of argument, this survey will assume that we are heading towards a networked society of ubiquitous, mobile Communication capable of constant monitoring.Whether this arrives in 20,30 or 40 years does not really matter.The point is that the destination seems not merely possible, but probable, so it is not too
soon to ask: What do we want this technology to do？
The internet has already thrown up a host of legal and political conundrums, but, these are only a small foretaste of the dilemmas about privacy, security, intellectual property and the nature of government itself that will have to be faced over the coming decades.The debate has already begun. This survey will outline some of main issues, and speculate on the way they are likely to go.
Radio-frequency identification devices__________. 查看材料
The advantage for computers in chess lies in__________.
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Artificial Intelligence
For years there have been endless articles stating that scientists are on the verge of achieving artificial intelligence and that it is just around the corner.The truth is that it may be just around the corner, but they haven&39;t yet found the fight block.
Artificial intelligence aims to build machines that can think. One immediate problem is to define thought,which is harder than you might think.The specialists in the field of artificial intelligence complain, with some justification, that anything that their machines do is dismissed as not being thought. For example, computer now plays very, very good chess.
They can&39;t beat the greatest players in the world, but they can beat just about anybody else.If a human being played chess at this level, he or she would certainly be considered smart.Why not a machine？ The answer is that the machine doesn&39;t do anything clever in playing chess. It uses its blinding speed to do a brute force search of all possible moves for several moves ahead, evaluates the outcomes and picks the best.Human don&39;t play chess that way.They see patterns, while computers don&39;t.
This wooden approach to thought characterizes machine intelligence.Computers have no judgment, no common sense.So-called expert systems, one of the hottest areas in artificial intelligence aims to mimic the reasoning processes of human experts in a limited field, such as medical diagnosis or weather forecasting.There may be limited commercial applications for this sort of thing, but there is no way to make a machine that can think about anything under the sun, which a teenager can do.
The hallmark of artificial intelligence to date is that if a problem is severely restricted, a machine can achieve limited success.But when the problem is expanded to a realistic one computers fall fiat on their display screens.For example.machines can understand a few words spoken individually by a speaker that they have been trained to hear.They cannot understand continuous speech using an unlimited vocabulary spoken by just any speaker.
According to the passage， we know that the writer__________. 查看材料
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