PITTSBURGH – For most people, snakes seem unpleasant or even threatening. But Howie Choset sees in their delicate movements a way to save lives.
The 37-year-old Carnegie Mellon University professor has spent years developing snake-like robots he hopes will eventually slide through fallen buildings in search of victims trapped after natural disasters or other emergencies.
Dan Kara is president of Robotics Trends, a Northboro, Mass.-based company that publishes an online industry magazine and runs robotics trade shows. He said there are other snake-like robots being developed, mainly at universities, but didn’t know of one that could climb pipes.
The Carnegie Mellon machines are designed to carry cameras and electronic sensors and can be controlled with a joystick(操纵杆). They move smoothly with the help of small electric motors, or servos, commonly used by hobbyists in model airplanes.
Built from lightweight materials, the robots are about the size of a human arm or smaller. They can sense which way is up, but are only as good as their human operators, Choset added.
Sam Stover, a search term manager with the Federal Emergency Management Agency based in Indiana, said snake-type robots would offer greater mobility than equipment currently available, such as cameras attached to extendable roles.
“It just allows us to do something we’ve not been able to do before,” Stover said, “We needed them yesterday.”
He said snifter dogs are still the best search tool for rescue workers, but that they can only be used effectively when workers have access to damaged building.
Stover, among the rescue workers who handled the aftermath (后果) of Hurricane Katrina, said snake robots would have helped rescuers search flooded houses in that disaster.
Choset said the robots may not be ready for use for another five to ten years, depending on funding. Which institution is responsible for the development of Choset’s robots?
| A．Robotics Trends. | B．Pittsburgh City Council. |
| C．Carnegie Mellon University. | D．Federal Emergency Management Agency. |
Choset believes that his invention ______.
| A．can be attached to an electronic arm |
| B．can be used by hobbyists in model airplanes |
| C．can find victims more quickly than a snifter dog |
| D．can sense its way no better than its operators |
By saying “We needed them yesterday” (paragraph 7), Stover means that snake-like robots _____.
| A．could help handle the aftermath of Hurricane Katrina |
| B．would have been put to use in past rescue work |
| C．helped rescuers search flooded houses yesterday |
| D．were in greater need yesterday than today |
What is the text mainly about?
| A．Snake-like robots used in industries. |
| B．Snake-like robots made to aid in rescues. |
| C．The development of snake-like robots. |
| D．The working principles of snake-like robots. |
The teacher was leaving the village, and everybody seemed sorry. The miller at Cresscombe lent him the small cart and horse to carry his goods to Christminster, the city of his destination, such a vehicle proving of quite enough size for the teacher's belongings, for his only article, in addition to the packing-case of books, was a piano that he had bought when he thought of learning instrumental music. But the eagerness having faded he had never acquired any skill in playing, and the purchased article had been a permanent trouble to him.
The headmaster had gone away for the day, being a man who disliked the sight of changes. He did not mean to return till the evening, when the new teacher would have arrived, and everything would be smooth again.
The blacksmith, the farm bailiff and the teacher were standing in confused attitudes in the sitting room before the instrument. The teacher had remarked that even if he got it into the cart he should not know what to do with it on his arrival at Christminster, since he was only going into a temporary place just at first.
A little boy of eleven, who had been assisting in the packing, joined the group of men, and said, ‘Aunt has got a fuel-house, and it could be put there, perhaps, till you’ve found a place to settle in, sir.’
‘Good idea,’ said the blacksmith.
The smith and the bailiff started to see about the possibility of the suggested shelter, and the boy and the teacher were left standing alone.
‘Sorry I am going, Jude?’ asked the latter kindly.
Tears rose into the boy’s eyes. He admitted that he was sorry.
‘So am I,’ said Mr. Phillotson.
‘Why do you go, sir?’ asked the boy.
‘Well—don't speak of this everywhere. You know what a university is, and a university degree? It is the necessary hallmark (标志) of a man who wants to do anything in teaching. My scheme, or dream, is to be a university graduate. By going to live at Christminster, I shall be at headquarters, so to speak, and if my scheme is practicable at all, I consider that being on the spot will afford me a better chance.’
The smith and his companion returned. Old Miss Fawley's fuel-house was practicable; and she seemed willing to give the instrument standing-room there. So it was left in the school till the evening, when more hands would be available for removing it; and the teacher gave a final glance round.
At nine o'clock Mr. Phillotson mounted beside his box of books, and waved his friends good-bye.It seemed that the teacher _____.
| A．was not getting on well with the headmaster |
| B．had lived a rather simple life in the village |
| C．was likely to continue to practice playing the piano |
| D．would get help in the city on arriving there |
The motivation of the teacher’s moving lay in his _____.
| A．ambition | B．devotion | C．admiration | D．inspiration |
The boy named Jude may be described as _____.
| A．polite, generous and cheerful | B．active, modest and friendly |
| C．kind, bright and helpful | D．calm, confident and humorous |
In the passage the writer describes both the teacher’s _____.
| A．love for music and his dislike for musical instruments |
| B．hard work in the village and his strong interest in city life |
| C．friendship with some villagers and also conflicts with others |
| D．eagerness to go to the city and his affection for the village |
Great literary works do not fade with time. Shakespeare’s plays, for example, have been read again and again by generation after generation; they have also been adapted for the big screen and shown at places other than the theater. Great literature also knows no language boundaries. For example, Chinese classical novels like The Dream of the Red Chamber and Journey of the Monkey have been widely read not only by Chinese but also by sinologists, people who study Chinese culture, from many language backgrounds.
People read literature to enjoy great writers’ ways with words and their humor. In the English language world, William Somerest Maugham is a novelist who is good at irony, i.e., saying the opposite of what is meant, to create humor. Another reason why Maugham’s novels are well-loved is that he never fails to provide a surprise ending to amuse his readers.
When readers become involved with what they are reading, they may behave as if they have traveled through time to live with the characters in the story. Readers of Maugham’s short story, The Luncheon, may often stop and wonder about how the main character is so easily fooled when hehas lunch with a woman he met once in Paris. They may also grow to love or hate this woman in the course of their reading.
Literary works often provide room for different interpretations. For example, poetry, because of its succinct use of words, can often be interpreted in a number of different ways. Short plays, on the other hand, contain more elaborate descriptions of the setting and the moods of the characters, not to mention the stage directions. However, almost all literary works make use of symbols to suggest ideas indirectly. Because symbols can carry different meanings in different cultures, one person’s interpretation of a symbol can be very different from another person’s.
Great literature is not bound by time or language barriers. It will continue to speak to generations of people.In Paragraph 3, whom does “he” refer to?
| A．The author. | B．The reader. | C．The main character. | D．Somerest Maugham. |
What would be the best title for this article?
| A．The Many Languages of Literature | B．Great Literature Has No Barriers |
| C．Great Literature Has Time | D．The Irony of Literature |
According to the passage, all the following things may draw readers’ attention EXCEPT______
| A．language backgrounds | B．humorous words |
| C．surprising endings | D．the use of symbols |
Boeing said Wednesday that it was entering the space tourism business, an announcement that could bolster（增强）the Obama administration’s efforts to transform the National Aeronautics and Space Administration into an agency that focuses less on building rockets and more on nurturing a commercial space industry.
The flights, which could begin as early as 2015, would most likely launch from Cape Canaveral in Florida to the International Space Station. The Obama administration has proposed turning over to private companies the business of taking NASA astronauts to orbit, and Boeing and Bigelow Aerospace of Las Vegas won an $18 million contract this year for preliminary (初步的)development and testing of a capsule that could carry seven passengers.
Current NASA plans call for four space station crew members to go up at a time, which would leave up to three seats available for space tourists. The flights would be the first to give nonprofessional astronauts the chance to go into orbit aboard a spacecraft launched from the United States. Seven earlier space tourists have made visits to the space station, riding in Russian Soyuz capsules.
“We’re ready now to start talking to possible customers,” said Eric C. Anderson, co-founder and chairman of Space Adventures, the space tourism company based in Virginia that would market the seats for Boeing.
Boeing and Space Adventures have not set a price, although Mr. Anderson said it would be competitive with the Soyuz flights, which Space Adventures arranged with the Russian Space Agency. Guy Laliberté, founder of Cirque du Soleil, paid about $40 million for a Soyuz ride and an eight-day stay at the space station last year. But the possibilities that anyone buying a ticket will get to space on an American vehicle depend on discussions in Congress about the future of NASA. Which of the following is most probably a private travel company?
A. Boeing. B. Space Adventure.
C. NASA. D. Russian Space Agency. How many people can be carried along on a capsule to the space station?
| A．3. | B．4. | C．7. | D．11. |
What can be inferred from the passage?
| A．The American space tourism company is located in Virginia. |
| B．Russia has already taken lead in working on the space tourism business. |
| C．NASA has decided to focus less on building rockets because of the financial crisis. |
| D．In 2015, America would be the first country in the world to run the space tourism business. |
What’s the best title of the passage?
| A．Taking NASA Astronauts to Orbit. | B．Living in the Space Station Space. |
| C．Ticket Price under Discussion. | D．Boeing Could Fly You to Orbit by 2015. |
What is art? According to one definition, it is the creation of something that appeals to our sense of beauty. This definition may include painting, drawing, sculpture, and architecture, or performing arts such as music and drama. Cultural and historical influences, as well as one’s own consciousness of what is aesthetically(审美地 )pleasing, play a role in what one believes to be art. To some people, art is the description of an object--- a painting or sculpture of a person, for example. For others, art may be a blank canvas, or a piece of chalk.
In order to talk about the different artistic styles that have existed over time, art historians have classified these styles into different periods and organized them in chronological order. The works of art produced within each period mirror the culture and events of that time.
The earliest forms of art, from the prehistoric era(时代), include simple cave paintings and figures made from stone. These were followed by the sculptures and carvings of Ancient Civilizations era. Styles of the later Classical era (800 B.C. to 200 A.D.), reflect the culture of the time--- one that favored simplicity and balance. The period of the Middle Ages followed, and was succeeded by a revival（复兴） of classical styles in the Renaissance era, beginning around 1400. Well-known artists of this time include Michelangelo and da Vinci. One hundred years of Baroque style, and then fifty years of Rococo followed the 200-year Renaissance. The start of the nineteenth century saw the rise of the Premodern era, followed by the Modern era, a period that lasted until 1945. This was followed by Postmodern era that characterizes the present day.
In addition to differences in artistic styles between eras, there are also differences within each era. The Postmodern era, for example, has featured innovative（创新） artistic styles such as Pop Art ( which includes work by Andy Warhol), Minimalism, and Conceptualism. Since the 1960s, Conceptualism has grown in popularity. This style focuses more on the idea or ‘concept’ of art using realistic objects, rather than on art that is created using traditional materials such as paint, canvas, stone, or clay. Whereas Warhol used a can of beans as the basis for a painting, for example, a conceptual artist might say that the can itself is a work of art.
Conceptualism has become an increasingly controversial（有争议的） art style, particularly as result of numerous conceptual artists winning the Turner Prize. This ￡20,000 award is presented annually to a British artist under the age of fifty, in recognition of an outstanding work. Sponsored by the Tate Gallery of Britain, it is recognized as one of Europe’s most prestigious awards for visual arts. Its aim is to promote discussion about contemporary British art. In 2002, pop music icon Madonna presented the Turner Prize to conceptual artist Martin Creed. One of the artistic styles that many people today discuss and arguing about is ______.
| A．classic style | B．Conceptualism | C．Pop art | D．Baroque style |
Which statement is NOT true according to the passage?
| A．Pop Art, Minimalism and Conceptualism are styles that developed in the Postmodern era. |
| B．Some of the world’s earliest art was created in caves. |
| C．History, culture and one’s concept of beauty affect what a person believes to be art. |
| D．Art historians refer to today’s artistic period as the Modern era. |
According to the passage, art historians have classified these styles into ____ periods.
| A．7 | B．8 | C．10 | D．12 |
If the passage continues, the following paragraph will be probably about_________.
| A．Martin Creed’s winning works | B．Madonna’s outstanding art style |
| C．the status of Conceptualism | D．the conclusion of art |
Watercolour is the oldest paints known. It dates back to the early cave men who discovered they could add lifelike qualities to drawings of animals and other figures on the walls of caves by mixing the natural colours found in the earth with water.
Fresco, one of the greatest of all art forms, is done with watercolour. It is created by mixing paints and water and applying these to wet plaster. Of the thousands of people who stand under Michelangelo’s heroic ceiling in the Sistine Chapel, very few know that they are looking at perhaps the greatest watercolour painting in the world.
The invention of oil painting by the Flem
ish masters in the fifteenth century made fresco painting go down-hill, and for the next several centuries watercolour was used mainly for doing sketches or as a tool for study. It was not until the eighteenth and nineteenth centuries that English painters put back watercolour as a serious art form. The English have a widely-known love for outdoors and also smal
l private pictures. The softness of watercolour had a remarkably strong attraction for them.
The popularity of watercolour continued to grow until the twentieth century. The United States passed England as the center for watercolour, producing such well-known watercolour artists as Thomas Eakins and Andrew Wyeth. The purpose of the passage is to introduce _____.
| A．the gradual weakness of fresco painting |
| B．oils’ power or influence over watercolour |
| C．the discovery of watercolour in England |
| D．the start and development of watercolour |
In the 16th and 17th centuries the artists thought _____.
| A．watercolour was softer, and thus better |
| B．oil painting lasted longer, and was better |
| C．watercolour wasn’t fit for finished works |
| D．watercolour was too hard to use in any works |
According to the passage, watercolour painting was put back in England because ____
| A．it was easy to use outdoors | B．it was a strong medium |
| C．it was extremely bright in colour | D．it was suited to popular tastes |
What would the next paragraph most probably deal with?
| A．The works of famous US watercolour artists |
| B．Modern American oil painters |
| C．The weakness of oils as popular paints |
| D．Techniques of producing watercolour |
粤公网安备 44130202000953号