Since the dawn of human ingenuity, people have devised ever more cunning tools to cope with work that is dangerous, boring, burdensome, or just plain nasty. That compulsion has resulted in robotics--the science of conferring various human capabilities on machines. And if scientists have yet to create the mechanical version of science fiction, they have begun to come close.As a result, the modern world is increasingly populated by intelligent gizmos whose presence we barely notice but whose universal existence has removed much human labor. Our factories hum to the rhythm of robot assembly arms. Our banking is done at automated teller terminals that thank us with mechanical politeness for the transaction. Our subway trains are controlled by tireless robo-drivers. And thanks to the continual miniaturization of electronics and micro-mechanics, there are already robot systems that can perform some kinds of brain and bone surgery with submillimeter accuracy--far greater precision that highly skilled physicians can achieve with their hands alone.But if robots are to reach the next stage of laborsaving utility, they will have to operate with less human supervision and be able to make at least a few decisions for themselves--goals that pose a real challenge. "While we know how to tell a robot to handle a specific error," says Dave Lavery, manager of a robotics program at NASA, "we can’t yet give a robot enough ’common sense’ to reliably interact with a dynamic world. "Indeed the quest for true artificial intelligence has produced very mixed results. Despite a spell of initial optimism in the 1960s and 1970s when it appeared that transistor circuits and microprocessors might be able to copy the action of the human brain by the year 2010, researchers lately have begun to extend that forecast by decades if not centuries.What they found, in attempting to model thought, is that the human brain’s roughly one hundred billion nerve cells are much more talented--and human perception far more complicated-than previously imagined. They have built robots that can recognize the error of a machine panel by a fraction of a millimeter in a controlled factory environment. But the human mind can glimpse a rapidly changing scene and immediately disregard the 98 percent that is irrelevant, instantaneously focusing on the monkey at the side of winding forest road or the single suspicious face in a big crowd. The most advanced computer system on Earth can’t approach that kind of ability, and neuroscientists still don’t know quite how we do it. Besides reducing human labor, robots can also ().
A. make a few decisions for themselves
B. deal with some errors with human intervention
C. improve factory environments
D. cultivate human creativity
查看答案
阅读下面这篇短文,短文后有2项测试任务:(1)第23~26题要求从所给的6个选项中为第2~5段每段选择1个正确的小标题;(2)第27~30题要求从所给的6个选项中选择4个正确选项,分别完成每个句子。 Estee Lauder Died1 The child of Central European immigrants who created an international cosmetics (化妆品) empire and became one of the most influential women in US, has died on Saturday. Estee Lauder died at her home in Manhattan, New York City, a company spokeswoman said. She was 97.2 Born in Queens, New York in 1908, Lauder was the daughter of a Hungarian mother and a Czech father.3 Lauder began her business career by selling skincare products developed by her uncle John Schotz, a chemist; to beauty salons (美容院) and hotels. In 1930, she married Joseph Lauder who became her* partner. The company, which became known as Estee Lauder, took off after World War II.4 In 1953, the company introduced its first perfume (香水), Youth Dew, the first of a range of fragrances that has now grown to more than 70. They include: Aramis, a line of products for men, launched in 1964; and Clinique, a range of odourless (无嗅的) cosmetics, which followed in 1968.5 By the time she retired in 1995, Lauder was presiding over a multibillion-dollar enterprise, which now ranks number 349 in the Fortune 500 list of largest US companies. In 1998, she was the only woman to feature in Time magazine’s selection of the 20 most important business geniuses of the last century. There were two secrets to her success: her gift for selling things and her tireless energy and determination never to accept second best.6 Even after her retirement at the age of 89, Lauder remained closely involved. Beauty, Lauder believed, was the most important thing in life.7 She wrote in her 1985 autobiography, "Estee, a Success Story": "In a perfect world, we’d all be judged on the sweetness of our souls. But in our less than perfect world, the woman who-looks pretty has a distinct advantage and, usually, the last word." Lauder regarded beauty______A. at the age of 97
If you intend using humor in your talk to make people smile, you must know how to identify shared experiences and problems. Your humor must be relevant to the audience and should help to show them that you are one of them or that you understand their situation and are in sympathy with their point of view. Depending on whom you are addressing, the problems will be different. If you are talking to a group of managers, you may refer to the disorganized methods of their secretaries; alternatively if you are addressing secretaries, you may want to comment on their disorganized bosses.Here is an example, which I heard at a nurses’ convention, of a story which works well because the audience all shared the same view of doctors. A man arrives in heaven and is being shown around by St. Peter. He sees wonderful accommodations, beautiful gardens, sunny weather, and so on. Everyone is very peaceful, polite and friendly until, waiting in a line for lunch, the new arrival is suddenly pushed aside by a man in a white coat, who rushes to the head of the line, grabs his food and stomps over to a table himself. "Who is that" the new arrival asked St. Peter. "Oh, that’s God, "came the reply, "but sometimes he thinks he’s a doctor. "If you are part of the group which you are addressing, you will be in a position to know the experiences and problems which are common to all of you and it’ll be appropriate for you to make a passing remark about the inedible canteen food or the chairman’s notorious bad taste in ties. With other audiences you mustn’t attempt to cut in with humor as they will resent an outsider making disparaging remarks about their canteen of their chairman. You will be on safer ground if you stick to scapegoats like the Post Office or the telephone system.If you feel awkward being humorous, you must practice so that it becomes more natural. Include a few casual and apparently off-the-cuff remarks which you can deliver in a relaxed and unforced manner. Often it’s the delivery which causes the audience to smile, so speak slowly and remember that a raised eyebrow or an unbelieving look may help to show that you are making a light hearted remark.Look for the humor. It often comes from the unexpected. A twist on a familiar quote "If at first you don’t succeed, give up" or a play on words or on a situation. Search for exaggeration and understatements. Look at your talk and pick out a few words or sentences which you can turn about and inject with humor. It can be inferred from the text that public service ().
A. have benefited many people
B. are the focus of public attention
C. are an inappropriate subject for humor
D. have often been the laughing stock
W: If you’re in your 20s, you own your first car, your career is more or less launched, and you’re starting to look forward to owning a home. But you’re worried, too. Perhaps you’ve got some debt. You probably don’t have much in the way of savings. And with all your expenses, it doesn’t look you’ll be able to improve that situation soon.If you wonder how to cut corners, there’s an obvious place to look--at your spending habits.Do you buy a soda each weekend Waste $1 a day for 40 years and, when you’re set to retire, you’ll find your account is short by $190,000. Grab a calculator and you’ll discover that, over 40 years going out to dinner twice a month at $ 40 each time amounts to half a million. Even a pack--a day cigarette habit will lighten your retirement account by $ 330,000. And the same with cable TV and those cool earrings. They will probably amount to as much as one million.So, the first clue to accumulating wealth is this: focus on your spending habits. Here are a couple of tricks to help you save even if you swear you can’t afford to. Stop buying things that fall rather than rise in value. Pay yourself first: Before you pay the monthly bills, send $ 25 to a mutual fund. Stop spending coins. From now on, spend only paper currency, and keep the change every day. Get your family involved, and you’ll double your savings. Use discount tickets at the supermarket--but use them correctly. How If you really want to make these tickets worthwhile, you actually must invest into your mutual fund the amount you save by using the tickets. Otherwise, you’re wasting your time--and your money. How much can a person save by retirement if he gives up his pack-a-day habit().
A. $190,000
B. $330,000
C. $500,000
D. $1,000,000
M: Next time you bring your kids in for a checkup, don’t be surprised if the doctor asks about their tastes in entertainment. The American Academy of Medicine suggested last week that doctors work with parents to evaluate how much TV kids watch and what they see, what video and computer games they play, which websites they visit on the Internet, whether they view R-rated videos without the company of their parents, what music they like and what books they read. Doctors are worried that kids who spend too much time in front of the tube don’t get enough exercise and can become overweight. The academy is also concerned that the messages kids get from entertainment media Can make them more violent and sexually active.The academy recommends that children under age two not watch any TV. "Children need activities to stimulate the brain during the first two years of life," says Dr. Miriam Baron, who chairs the academy’s committee on public education. "They need feedback and socialization. " Older children, she says, should watch TV in a common area. Their bedrooms should be "electronic media-free" zones where they can have a quiet place to read, study, play or just relax. The academy suggests that children under age two ().
A. get enough entertainment
B. have more activities
C. receive early education
D. have regular checkups