To move visual technology into the future, sometimes it helps to make a little noise. Researchers have used sound waves to produce floating 3-D images, create a sense of touch and even supply a soundtrack.
Since the 1940s, scientists have toyed with the concept of acoustic levitation(声悬浮), the use of soundwave vibrations to trap tiny things in midair. The technology has gained greater capabilities in the past decade. Some researchers believe this improvement could lead to applications such as contributing to novel 3-D printing methods, or creating displays that would be visible from any angle without requiring a screen.
Other researchers have also worked on visual displays that use acoustic levitation. In addition to visuals, the system can also produce audible noise to give the display a soundtrack. And the ultrasound speakers can also concentrate vibrations in one spot so that a finger might feel a sense pushing back—a little like the object shown by the floating image is really there. Soundwaves create a 3-D display!
Display without a screen is remarkably useful. It means that everybody in the room can see the image—any angle, location—and that’s extremely helpful. As a communications system, such a display might one day allow users to chat with a 3-D projection(投影) of a person who can turn his or her head to follow as they move around a room.
The display will require a lot more work before you can install it in your living room, however. So far, this has been done in the research laboratory. We need to push it a little bit harder. We need to do more analysis to see if it would make sense to create a real display that people would have at home. The current system can only show simple graphics, such as a smiley face or figure eight, in real time.
Still, we are optimistic about the potential for this type of technology. If the system had only one speaker-covered surface instead of two, it could generate images that are bigger than the device itself. We can’t make a TV image that’s bigger than the TV—even a projector has to have a projection screen that’s bigger than the image itself. But with a volumetric(容积的) display, a small, portable device might produce a much larger picture. We can imagine, in the future, having volumetric displays in watches, for example, that create large images that just project out of your watch.
1. From the first two paragraphs soundwave vibrations can be used to _________.| A．catch very small objects in midair |
| B．develop 3-D printer’s capabilities |
| C．replace a creative display screen |
| D．compose soundtracks by making no noise |
| A．It has resulted in visual technology. |
| B．It is possible to see the image from any direction. |
| C．It is already ripe to create a real one at home. |
| D．It has yet to be tested in the research laboratory. |
| A．Outlooks for the new technology. |
| B．Situations of the modern technology. |
| C．Praise for the cutting-edge technology. |
| D．Room for the technical improvement. |
| A．Hearing Is Seeing—Sound Waves Create a 3-D Display |
| B．Seeing is Believing—3-D Printing Methods Arrive |
| C．Advancing Sense of Touch—3-D Images Float in the Air |
| D．Promoting TV Technology—Chat with 3-D Projections |
相似题推荐
【推荐1】Hollywood’s theory that machines with evil(邪恶) minds will drive armies of killer robots is just silly. The real problem relates to the possibility that artificial intelligence(AI) may become extremely good at achieving something other than what we really want. In 1960 a well-known mathematician Norbert Wiener, who founded the field of cybernetics（控制论）, put it this way: “If we use, to achieve our purposes, a mechanical agency with whose operation we cannot effectively interfere(干预), we had better be quite sure that the purpose put into the machine is the purpose which we really desire.”
A machine with a specific purpose has another quality, one that we usually associate with living things: a wish to preserve its own existence. For the machine, this quality is not in-born, nor is it something introduced by humans; it is a logical consequence of the simple fact that the machine cannot achieve its original purpose if it is dead. So if we send out a robot with the single instruction of fetching coffee, it will have a strong desire to secure success by disabling its own off switch or even killing anyone who might interfere with its task. If we are not careful, then, we could face a kind of global chess match against very determined, super intelligent machines whose objectives conflict with our own, with the real world as the chessboard.
The possibility of entering into and losing such a match should concentrate the minds of computer scientists. Some researchers argue that we can seal the machines inside a kind of firewall, using them to answer difficult questions but never allowing them to affect the real world. Unfortunately, that plan seems unlikely to work: we have yet to invent a firewall that is secure against ordinary humans, let alone super intelligent machines.
Solving the safety problem well enough to move forward in AI seems to be possible but not easy. There are probably decades in which to plan for the arrival of super intelligent machines. But the problem should not be dismissed out of hand, as it has been by some AI researchers. Some argue that humans and machines can coexist as long as they work in teams—yet that is not possible unless machines share the goals of humans. Others say we can just “switch them off” as if super intelligent machines are too stupid to think of that possibility. Still others think that super intelligent AI will never happen. On September 11, 1933, famous physicist Ernest Rutherford stated, with confidence, “Anyone who expects a source of power in the transformation of these atoms is talking moonshine.” However, on September 12, 1933, physicist Leo Szilard invented the neutron-induced(中子诱导) nuclear chain reaction.
1. Paragraph 1 mainly tells us that artificial intelligence may .| A．run out of human control |
| B．satisfy human’s real desires |
| C．command armies of killer robots |
| D．work faster than a mathematician |
| A．prevent themselves from being destroyed |
| B．achieve their original goals independently |
| C．do anything successfully with given orders |
| D．beat humans in international chess matches |
| A．help super intelligent machines work better |
| B．be secure against evil human beings |
| C．keep machines from being harmed |
| D．avoid robots’ affecting the world |
| A．It will disappear with the development of AI. |
| B．It will get worse with human interference. |
| C．It will be solved but with difficulty. |
| D．It will stay for a decade. |
【推荐2】Imagine looking at a view of mountaintops and wondering about the name of each peak. Suddenly, above each mountaintop, a name appears on the sky. The words are not written in smoke by skywriting planes. The words are actually not in the sky at all. They come from tiny computers in contact lenses (隐形眼镜).
Computers have become smaller and smaller over the decades. The first computers filled houses. Transistors (晶体管) and then chips allowed computers to become small enough to fit on a desktop, then a laptop, and finally a phone. When experimenting with further contraction in size, developers often have to deal with the limits of human eyesight, which control how small the computers can be and still present visible information.
One new solution employs microprojectors (微型投影机) to create a readable display (显示) for tiny computers. These machines project computer information onto any surface. Though an impressive breakthrough, there are potential problems. Such public displays can lead to privacy concerns; most people do not want their information displayed on a wall for everyone to see. Besides, these projectors are extremely expensive, and their screens give users headaches.
Babak Parviz, a researcher at the University of Washington, created another solution: inventing a screen visible only to a person wearing a contact lens. Parviz created a computer in a contact lens that uses the wearer’s field of vision as the display. To create the display, Parviz took ordinary soft contact lenses with a wirelessly controlled system. At some point, Parviz says, it will be possible to connect the lens to a remote personal computer device such as a cellphone or a laptop. By looking in a certain direction, the wearer sends the computer visual information about what he or she sees. The device then uses this information to point out the names of peaks.
These contact lenses are inserted and removed in much the same way as ordinary contact lenses. In addition, the computers in the lenses won’t block the wearer’s sight at all. Although now the computers are not on lenses treating eyesight problems, Parviz hopes that someday the technology will progress to that level.
1. The contact lenses in the text can ________.| A．treat eyesight problems | B．offer beautiful views of nature |
| C．project information on wall surface | D．show information about what wearers see |
| A．expansion | B．spread |
| C．reduction | D．revolution |
| A．put people’s privacy at risk | B．save computer information |
| C．cause serious illnesses | D．support users’ needs |
| A．saving users’ expenses | B．reducing computers’ size |
| C．limiting the field of vision | D．guarding remote computers |
| A．Tiny Computers, Amazing Sights | B．Smaller Lenses, Closer Views |
| C．Progress towards Clearness | D．Road to the Small World |
【推荐3】AI that Sees like Humans
For most of the past 30 years computer-vision technologies have struggled to perform well, even in tasks as boring as accurately recognizing faces in photographs.
Recent progress in a deep- learning approach known as a convolutional neural network(CNN) is key to the latest progress.
CNNS do not need to be programmed to recognized specific features in images--- for example, the shape and size of an animal’s ears.
CNNS were made possible by the tremendous progress in graphic processing units and parallel processing in the past decade. But the Internet has made a big difference as well by feeding CNNs’ appetite for digitized images.
| A．Once trained, a CNN can easily decide whether a new image of an animal shows a breed of interest. |
| B．Instead, they are taught to spot features such as these on their own. |
| C．Recently, though, breakthroughs in deep learning have finally enabled computers to interpret many kinds of images as successfully as, or better than, people do. |
| D．To give a simple example of its power, consider image of animals. |
| E．Computers-vision systems powered by deep learning are being developed for range of applications. |
| F．It excels because it is better able to learn, and draw inferences from telling patterns in the images |
【推荐1】Hollywood’s theory that machines with evil(邪恶) minds will drive armies of killer robots is just silly. The real problem relates to the possibility that artificial intelligence(AI) may become extremely good at achieving something other than what we really want. In 1960 a well-known mathematician Norbert Wiener, who founded the field of cybernetics（控制论）, put it this way: “If we use, to achieve our purposes, a mechanical agency with whose operation we cannot effectively interfere(干预), we had better be quite sure that the purpose put into the machine is the purpose which we really desire.”
A machine with a specific purpose has another quality, one that we usually associate with living things: a wish to preserve its own existence. For the machine, this quality is not in-born, nor is it something introduced by humans; it is a logical consequence of the simple fact that the machine cannot achieve its original purpose if it is dead. So if we send out a robot with the single instruction of fetching coffee, it will have a strong desire to secure success by disabling its own off switch or even killing anyone who might interfere with its task. If we are not careful, then, we could face a kind of global chess match against very determined, super intelligent machines whose objectives conflict with our own, with the real world as the chessboard.
The possibility of entering into and losing such a match should concentrate the minds of computer scientists. Some researchers argue that we can seal the machines inside a kind of firewall, using them to answer difficult questions but never allowing them to affect the real world. Unfortunately, that plan seems unlikely to work: we have yet to invent a firewall that is secure against ordinary humans, let alone super intelligent machines.
Solving the safety problem well enough to move forward in AI seems to be possible but not easy. There are probably decades in which to plan for the arrival of super intelligent machines. But the problem should not be dismissed out of hand, as it has been by some AI researchers. Some argue that humans and machines can coexist as long as they work in teams—yet that is not possible unless machines share the goals of humans. Others say we can just “switch them off” as if super intelligent machines are too stupid to think of that possibility. Still others think that super intelligent AI will never happen. On September 11, 1933, famous physicist Ernest Rutherford stated, with confidence, “Anyone who expects a source of power in the transformation of these atoms is talking moonshine.” However, on September 12, 1933, physicist Leo Szilard invented the neutron-induced(中子诱导) nuclear chain reaction.
1. Paragraph 1 mainly tells us that artificial intelligence may .| A．run out of human control |
| B．satisfy human’s real desires |
| C．command armies of killer robots |
| D．work faster than a mathematician |
| A．prevent themselves from being destroyed |
| B．achieve their original goals independently |
| C．do anything successfully with given orders |
| D．beat humans in international chess matches |
| A．help super intelligent machines work better |
| B．be secure against evil human beings |
| C．keep machines from being harmed |
| D．avoid robots’ affecting the world |
| A．It will disappear with the development of AI. |
| B．It will get worse with human interference. |
| C．It will be solved but with difficulty. |
| D．It will stay for a decade. |
【推荐2】Communication technologies are far from equal when it comes to conveying the truth. The first study to compare honesty across a range of communication media has found that people are twice as likely to tell lies in phone conversations as they are in emails. The fact that emails are automatically recorded — and can come back to haunt (困扰) you — appears to be the key to the finding.
Jeff Hancock of Cornell University in Ithaca, New York, asked 80 students to keep a communication diary for a week. In it they noted the number of conversations or email exchanges they had lasting more than 10 minutes, and confessed to how many lies they told. Hancock then worked out the number of lies per conversation for each medium. He found that lies made up 14 per cent of emails, 21 per cent of instant messages, 27 per cent of face-to-face interactions and an astonishing 37 per cent: of phone calls.
His results to be presented at the conference on human-computer interaction in Vienna, Austria, in April, have surprised psychologists. Some expected emailers to be the biggest liars, reasoning that because deception makes people uncomfortable, the detachment (非直接接触) of emailing would make it easier to lie. Others expected people to lie more in face-to-face exchanges because we are most practiced at that form of communication.
But Hancock says it is also crucial whether a conversation is being recorded and could be reread, and whether it occurs in real time. People appear to be afraid to lie when they know the communication could later be used to hold them to account, he says. This is why fewer lies appear in email than on the phone.
People are also more likely to lie in real time—in an instant message or phone call, say— than if they have time to think of a response, says Hancock. He found many lies are spontaneous (脱口而出的) responses to an unexpected demand, such as: “Do you like my dress?”
Hancock hopes his research will help companies work out the best ways for their employees to communicate. For instance, the phone might be the best medium for sales where employees are encouraged to stretch the truth. But, given his result, work assessment where honesty is a priority, might be best done using email.
1. What does the phrase “to stretch the truth” in the last paragraph mean?| A．to tell the truth | B．to understate something |
| C．to overestimate something | D．to deceive people |
| A．Because it takes more time to think than to speak. |
| B．Because lies in emails may do harm to their credit. |
| C．Because of the detachment of emailing. |
| D．Because they are practiced to be more honest in emailing. |
| A．Emails contain more lies than other communication media. |
| B．Face-to-face communication contains more lies. |
| C．Face-to-face communication contains more lies because it is not recorded. |
| D．Deception makes people uncomfortable, which reduces mistakes in phone calls. |
| A．Honesty is always the best policy. |
| B．Employees should choose suitable media for different communication purposes. |
| C．If honesty is important, employees should choose face-to-face talk. |
| D．Employees should be honest with their clients, their bosses and their rivals. |
【推荐3】As the international demand for narrative(叙事的) film/TV content continues to increase with popular streaming services like Netflix and others the two questions then come: will the coming generations receive most of their entertainment through visual means rather than through the written word and will such an increase of narrative film/ TV reduce the importance of reading?
Growing examples of this trend include the diminishment(减少) of fiction in the common core (核心的)curriculum, the ever－rising culture of computer games, the wave of streaming services of wide international reach, and movies filled with special effects made for children and teenagers. Nor must we ignore the economic dangers that lie ahead for the written word. The narrative film industry is a moneymaker that dwarfs(使相形见绌) the publishing industry.
The other underlying question, of course, is “does it really matter if the written word bows to the world of film/TV?” From my point of view, any diminishment of fiction delivered by words is a loss for mankind.
There is no greater human feature than the imagination. It lies at the very soul of the human species. It is the brain’s most powerful engine. It is the essential muscle of life and like all muscles it must be exercised and strengthened.
Writing and reading are the principal tools that inspire, create and empower our imagination. Anything that diminishes that power is the enemy of mankind.
It should be known that I am not opposed to new media and technological advances. Instead, I have always felt it necessary to adapt to advancing technology. In fact, a number of my novels are in various stages of development for film, TV, and live stage productions. My hope is that the written word will only stand to be complemented(补充)by its visual counterparts(对应物), not pushed to the edge of extinction.
Of course, there are those who will present arguments for the superiority of the moving image over the written word. Each has its place. My argument is for finding the right balance between it and the moving image.
1. In what way does narrative film/TV embarrass the written word?| A．Economic benefits | B．International reach |
| C．Cultural influence | D．Educational importance |
| A．It strengthens our muscles. | B．It helps sharpen imagination. |
| C．It distinguishes man from each other. | D．It paves the way for narrative film/TV. |
| A．Cautious | B．Skeptical |
| C．Positive | D．Critical |
| A．The fate of reading. | B．The extinction of fiction. |
| C．The impact of the written word. | D．The future of the moving image. |
【推荐1】We may not have the full details and are likely to judge something based on limited information.We tend to distance ourselves through our judgment and become disappointed with what we find. Judgment keeps us safe because we move our feelings of fear,shame and guilt onto others to make ourselves feel better.This comes at a cost of parting ourselves instead of building stronger connections.
The way out of judgment is through the power of gratitude,which helps us see things differently.Gratitude opens the door to our hearts and helps us consider things from different aspects.A heart filled with gratitude is unlike a heart filled with judgment,fear and anger.Consequently,judgment and gratitude are opposing forces.One is the field of the self and the other is expressed through true goodness and sympathy.
The key to recognizing our judgment lies in being mindful of our thoughts.I often tell coaching customers when they notice themselves judging,to stop and ask a simple question:“What am I not seeing in this situation?”This helps us notice where we are blinded by our bias(偏见)and unable to see the truth.It is my experience that judgment happens mainly in our connection with people.
We are unaware of other people’s motives and plans because we bring our own ill-natured thinking to the process.This was evident with the Tour de France winner Lance Armstrong,who convinced himself and others he did not cheat. He went to great lengths to dismiss(否定)his use of illegal performance-improving drugs.In an interview with Oprah Winfrey,he said that his lies were so convincing that they eventually became truth.
But upholding a lie is harder than speaking the truth.In contrast,the power of gratitude allows us to shift(转移)our attention to the truth,even if it means our feelings will be hurt.Gratitude turns the switch from fear and judgment to sympathy and understanding.It is the bridge where friendships and tolerance are born.
1. What does the author think of judgment?| A．It makes us physically safe. | B．It contributes to satisfying results. |
| C．It damages our relationships with others. | D．It allows us to decide with full understanding. |
| A．To warn them of others’ill thoughts. | B．To help them to recognize their judgment. |
| C．To remind them to connect with others. | D．To explain to them the bad effects of judgment. |
| A．the progress in medicine | B．the source of judgment |
| C．the achievement of the cyclist | D．the reason for telling white lies |
| A．Benefits of being grateful | B．Search for the whole truth |
| C．Ways to form a friendship | D．Get away from judgment |
【推荐2】Kids nowadays are growing up “connected”, learning to use technology at a surprising speed. Technology is a regular part of school now! Kids as young as Kindergarten are using smartboards, IPads, and computers to complete tasks in the classroom. Older children rely on the Internet for research, getting homework, sending work to teachers, and even accessing（ 获得） textbooks. In fact, today’s kids have been given the name “digital（数字）natives” because they are facing technology almost from birth, so new things have never been a greater challenge in the hands of our children. The Internet，Facebook, iPods, pictures and texting on cell phones and all of these are the ways kids communicate today. They have become a central part of their lives. It allows them a private life that most of us know very little about.
Kids just don’t think about the results of the new world of social networking and text messaging. They don’t think that it is dangerous to send a photo of a particular person to a foolish person, who might send it to some friends that may send it to a hundred others and the next thing you know, it’s on many Facebook sites and all over the Internet forever. They don’t think that way because they don’t have the life experience that we do. We have to help them.
The key to knowing how they manage this privacy（隐私） is our “connection” to them. How closely do we connect with our kids and pay attention to what they’re doing? And how often do we talk to our children... and really listen to them? If they believe in us and know that we will be there for them, they are more likely to follow our advice. If we talk openly about what we believe in, what we stand for, those values will become their own before long.
1. What is the author’s opinion about children?| A．They are good at accepting modern things. | B．They are well understood by their parents. |
| C．They almost like to surf on the Facebook. | D．They know the Internet dangers well. |
| A．Kids. | B．Adults. | C．Internet users. | D．Internet teachers. |
| A．They only understand their own private lives. | B．They are badly influenced by new things. |
| C．They do not have life experience. | D．They don’t depend on their parents. |
| A．When they are surfing on the Internet. | B．When they meet some dangerous situations. |
| C．When parents believe in what they are doing. | D．When parents communicate with them deeply. |
【推荐3】If spending is a measure of what matters, then the people of the developing world place a high value on brains. While private spending on education has not changed much in the rich world in the past ten years, in China and India it has more than doubled. Since brainpower is the primary generator of progress, this burst of enthusiasm for investing in private education is excellent news for the world. But not everybody is delighted. Because private education increases inequality, some governments are trying to stop its advance. That’s wrong: they should welcome it, and spread its benefits more widely.
① Education used to be provided by religious institutions or entrepreneurs. But when governments, starting in Prussia in the 18th century, got into the business of nation-building, they realized they could use education to shape young minds. As state systems grew, private schooling was left to the elite and the pious(虔诚的). Now it is enjoying popularity again, for several reasons. Incomes are rising, especially among the better off, at the same time as birth rates are falling. In China the former one-child policy means that six people---two parents and four grandparents---can pour money into educating a single child.
② All over the developing world, people want more or better education than governments provide. Where cities are growing at unmanageable speed, the private education is taking up the slack. In India the private education now educates nearly half of all children, in Pakistan more than a third, and in both countries the state education is shrinking. Even where the state does pretty well, as in East Asia, richer people still want better schooling for their children than the masses get. Thus, Vietnam, which has an outstanding state-school system for a poor country, measured by its performance in the OECD’s PISA test, also has the fastest-growing private education.
③ In most ways, this is an excellent thing, because the world is getting more and better schooling.
In rich countries, once the background and ability of the children who attend private schools are taken into account, their exams results are about the same as those in the state education. But in developing countries private schools are better---and much more efficient. A study of eight Indian states found that, in terms of learning outcomes per rupee, private schools were between 1.5 times and 29 times more cost-effective than state schools.
④ They tend to sort children by income, herding richer ones towards better schools that will enhance their already superior life chances. That is one reason why many governments are troubled by their rise.
Governments are right to worry about private education’s contribution to inequality, but they are wrong to discourage its growth. Governments should instead focus on improving the public education by mimicking(模仿) the private education’s virtues. Freedom from independent management is at the root of its superior performance and greater efficiency. Governments should therefore do their best to give school principals more freedom to innovate and to fire underperforming teachers.
To spread the benefit of private schools more widely, governments should work with them, paying for education through vouchers(代金券) which children can spend in private schools. And vouchers should be limited to students in non-selective schools that do not charge top-up fees; otherwise governments will find themselves helping the better off and increasing inequality.
The world faces plenty of problems. Governments should stop behaving as though private education were one of them. It will, rather, increase the chances of finding solutions.
1. What do we know about private education?| A．More developed countries enjoy it. |
| B．It attracts more and more investment. |
| C．Public education will replace it in the future. |
| D．It has helped governments to remove inequality |
| A．Filling the gap. | B．Setting the place. |
| C．Breaking the balance. | D．Avoiding the risk. |
| A．The population in Vietnam is shrinking dramatically. |
| B．Its state education is worse than other developing countries. |
| C．Some people want better education for their children than others. |
| D．The government intends private education to shape young minds. |
| A．① | B．② | C．③ | D．④ |
| A．Train school principals. | B．Sell vouchers to children. |
| C．learn from private education. | D．Fire underperforming teachers. |
| A．Private education should be based on state education. |
| B．Private education should be targeted at well-off families. |
| C．Governments should prevent the spread of private education. |
| D．Governments should celebrate the popularity of private education. |
【推荐1】Abraham Lincoln turns 200 this year, and he’s beginning to show his age. When his birthday arrives, on February 12, Congress will hold a special joint session in the Capitol’s National Statuary Hall, a wreath (花环) will be laid at the great memorial in Washington, and a webcast will link school classrooms for a "teach-in" honoring his memory.
Admirable as they are, though, the events will strike many of us Lincoln fans as inadequate, even halfhearted — and another sign that our appreciation for the 16th president and his towering achievements is slipping away. And you don’t have to be a Lincoln enthusiast to believe that this is something we can’t afford to lose.
Compare this year’s celebration with the Lincoln centennial, in 1909. That year, Lincoln’s likeness made its debut on the penny, thanks to approval from the U. S. Secretary of the Treasury. Communities. and civic associations in every comer of the country erupted in parades, concerts, balls, lectures, and military displays. We still feel the effects today: The momentum unloosed in 1909 led to the Lincoln Memorial, opened in 1922, and the Lincoln Highway, the first paved transcontinental thoroughfare (大道) .
The celebrants in 1909 had a few inspirations we lack today. Lincoln’s presidency was still a living memory for countless Americans. In 2009 we are farther in time from the end of the Second World War than they were from the Civil War; families still felt the loss of loved ones from that awful national trauma (创伤) .
But Americans in 1909 had something more: an unembarrassed appreciation for heroes and an acute sense of the way that even long-dead historical figures press in on the present and make us who we are.
One story will illustrate what I’m talking about.
In 2003 a group of local citizens arranged to place a statue of Lincoln in Richmond, Virginia, former capital of the Confederacy (南方联邦). The idea touched off a firestorm of controversy. The Sons of Confederate Veterans held a public conference of carefully selected scholars to “reassess” the legacy of Lincoln. The verdict — no surprise — was negative: Lincoln was labeled everything from a racist totalitarian to a teller of dirty jokes.
I covered the conference as a reporter, but what really unnerved me was a counter-conference of scholars to refute the earlier one. These scholars drew a picture of Lincoln that only our touchy-feely age could recall. The man who oversaw the most savage war in our history was described — by his admirers, remember — as “nonjudgmental,” “unmoralistic,” “comfortable with ambiguity (模棱两可) .”
I felt the way a friend of mine felt as we later watched the unveiling of the Richmond statue in a subdued (征服) ceremony: “But he’s so small!”
The statue in Richmond was indeed small; like nearly every Lincoln statue put up in the past half century, it was life-size and was placed at ground level, a conscious rejection of the heroic — approachable and human, yes, but not something to look up to.
The Richmond episode taught me that Americans have lost the language to explain Lincoln’s greatness even to ourselves. Earlier generations said they wanted their children to be like Lincoln: principled, kind, compassionate, resolute. Today we want Lincoln to be like us.
“This helps to explain the long string of recent books in which writers have presented a Lincoln made after their own image. We’ve had Lincoln as humorist and Lincoln as manic-depressive, Lincoln the business sage, the conservative Lincoln and the liberal Lincoln, the emancipator and the racist, the stoic philosopher, the Christian, the atheist (无神论者) — Lincoln over easy (两面煎的) and Lincoln scrambled (把…搅乱) .
What’s often missing, though, is the timeless Lincoln, the Lincoln whom all generations, our own no less than that of 1909, can lay claim to. Lucky for us, those memorializers from a century ago — and, through them, Lincoln himself — have left us a hint of where to find him. The Lincoln Memorial is the most visited of our presidential monuments. Here is where we find the Lincoln who endures: in the words he left us, defining the country we’ve inherited. Here is the Lincoln who can be endlessly renewed and who, 200 years after his birth, retains the power to renew us.
1. The author thinks that this year’s celebration inadequate and even halfhearted because ________.| A．no Lincoln statue will be unveiled. |
| B．no memorial coins will be issued. |
| C．no similar appreciation of Lincoln will be seen. |
| D．no activities can be compared to those in 1909. |
| A．approved of the judgment by those carefully selected scholars. |
| B．offered a brand new reassessment perspective. |
| C．came up with somewhat favourable conclusions. |
| D．resulted in similar critical remarks on Lincoln. |
| A．conforms to traditional images. |
| B．reflects the present-day tendency of worship. |
| C．shows the present-day desire to match Lincoln. |
| D．reveals the variety of current opinions on heroes. |
| A．Lincoln’s greatness remains despite the passage of time. |
| B．The memorial is symbolic of the great man’s achievements. |
| C．Each generation has its own interpretation of Lincoln. |
| D．People get to know Lincoln through memorializers. |
【推荐2】Plato, an ancient Greek philosopher, believed that men are divided into three classes: gold, silver and bronze. Vifredo Pateto, an Italian economist, argued that “the vital few” account for most progress. In the private sector, best companies struggle relentlessly to find and keep the vital few. They offer them fat pay packets, extra training, powerful mentors and more challenging assignments.
As the competition in business is getting increasingly fierce, companies are trying harder to nurture raw talent, or to poach it from their vitals. Private-equity firms rely heavily on a few stars. High-tech firms, for all their egalitarianism (平均主义), are ruthless about recruiting the brightest. Firms in emerging markets are desperate to find young high-flyers to cope with rapid growth and fast-changing environment.
Bill Conaty and Ram Charan’s recent book The Talent Masters provides a nice mix of portraits of well-known talent factories along with sketches of more recent converts to the cause. “Talent masters” are proud of their elitism. GE divides its employees into three groups based on their promise. Hindustan Unilever compiles a list of people who show innate leadership qualities. “Talent masters” all seem to agree on the importance of two things: measurement and differentiation. The best companies routinely subject employees to various “reviews” and “assessments.” But when it comes to high-flyers they make more effort to build up a three-dimensional picture of their personalities and to provide lots of feedback.
A powerful motivator is to single out high-flyers for special training. GE spends $1 billion a year on it. Novartis sends high-flyers to regular off-site training sessions. Many companies also embrace on-job training, speaking of “stretch” assignments or “baptisms by fire.” The most coveted are foreign postings: these can help young managers understand what it is like to run an entire company with a wide range of problems.
Successful companies make sure that senior managers are involved with “talent development.” Bosses of GE and P&G spent 40% of their time on personnel. Intel obliged senior managers to spend at least a week in a year teaching high-flyers. Involving the company’s top brass (高级职员) in the process prevents lower-level managers from monopolizing high-flyers and crates dialogues between established and future leaders. Successful companies also integrate talent development with their broader strategy to ensure that companies are more than the sum of their parts. P&G likes its managers to be both innovative and worldly. Goodyear replaced 23 of its 24 senior managers in two years as it shifted its target-consumers from carmakers to motorists.
Meanwhile, in their rush to classify people, companies can miss potential stars. Those who are singled out for special treatment can become too full of themselves. But the first problem can be fixed by flexibility; people who are average in one job can become stars in another. And people who become too smug can be discarded.
1. The author mentions the needs for talent of different firms in the second paragraph to show that _________.| A．the need for talent is universal |
| B．there is a cut-throat competition among them |
| C．the economy is more prosperous than before |
| D．the need for talent is confined to high-tech firms |
| A．How the well-known talent factories classify their staff. |
| B．How the talent factories and recent converts to the cause are like. |
| C．How to identify and recruit talent. |
| D．How to keep and foster elite employees. |
| A．checking and evaluating them frequently |
| B．compelling the senior managers to instruct the high-flyers |
| C．moving them into the positions that display their strengths |
| D．providing them with training or special mentoring classes |
| A．making sure that its senior managers spend enough time on personnel |
| B．changing the company’s strategy according to the status quo of talent |
| C．replacing most of the senior managers regularly to avoid monopoly |
| D．grooming future leaders from high-flyers rather than from lower-level managers |
| A．The importance of equality. |
| B．The necessity of flexibility. |
| C．The drawbacks of elitism. |
| D．The harm of self-conceit. |
【推荐3】Extinctions are seldom a cause for celebration. Humans are wiping out species at a frightening rate, whether hunting them into history or, far more threateningly, damaging the habitats on which they depend. How, then, to think about a new technology that will make driving a species to extinction far easier?
That technology is known as a gene drive, so called because it uses genetic engineering to drive certain features through a population. Those characteristics need not be harmful: they might become stronger against disease among crops or, perhaps, greater tolerance to warming waters on the part of corals. And if the species in question were the three types of mosquito responsible for spreading malaria(疟疾), it could save close to half a million lives a year, many of them children. The same approach could be used against other diseases such as Lyme disease, and Zika. Gene drives also offer us a potential weapon against foreign species such as foxes, mice, rabbits and rats, which are threatening native species in some parts of the world.
Normally genes have a 50:50 chance of being passed on during reproduction. Gene drives tip the evolutionary scales. One area of research focuses on genes that can copy themselves to the second, ensuring that they will be passed on by all offspring(后代). Like many technologies, however, gene drives may lead to bad outcomes as well as good. They could in theory make a species extinct. One concern is practical: removing a species from the food chain could have unintended consequences, particularly if gene drives can move to a closely related species. Another relates to governance. Genetically modified crops can be kept relatively contained; animals carrying gene drives could be mobile and respect no borders. One country’s decision to use gene drives will have consequences for its neighbors. A third worry concerns improper uses of the technology, and not only by states. A mosquito, engineered to inject toxins(毒素), could be used as a weapon. But putting the brakes on research may pay real costs: not just the annual rising number of deaths taken by malaria and other killers before an answer is found, but also slower progress towards making gene drives safer.
1. What’s the main idea of the second paragraph?| A．Diseases spread among crops. | B．The definition of gene drives. |
| C．The bright sides of gene drives. | D．The possible ways against diseases. |
| A．Management. | B．Adjustment. | C．Instructions. | D．Relevance. |
| A．Unconcerned. | B．Disapproving. | C．Ambiguous. | D．Supportive. |
| A．Pros and Cons of Gene Drives |
| B．Gene Drives Make Our Life Safer |
| C．Dangers Gene Drives Bring to Us |
| D．One Concern We don’t Ignore |
