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 orsmaller. 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 sniffer dogs are still the best search tool for rescue workers, but that they can only be used effectively when workers have access to damaged buildings.
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.
72. 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.
73. 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 sniffer dog
D. can sense its way no better than its operators
74. 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
75. 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 way we do things round here
Some years ago, I was hired by an American bank. I received a letter from the head of the Personnel Department that started, “Dear John, I am quite pleased that you have decided to join us.” That “quite” saddened me. I thought he was saying “We’re kind of pleased you decided to join us although I wish we had hired someone else.” Then I discovered that in American English “quite” sometimes means “very”, while in British English it means “fairly”.
So the first lesson about working in other countries is to learn the language and by that I don’t just mean the words people speak. It is body language, dress, manners, ideas and so on. The way people do things highlights many of the differences we see between cultures.
Some of these differences may be only on the surface--- dress, food and hours of work--- while others may be deeper and take longer to deal with. Mostly, it is just a question of getting used to the differences and accepting them, like the climate (气候), while getting on with business.
Some of the differences may be an improvement. People are more polite; the service is better; you ask for something to be done and it happens without having to ask again. However, other differences can be troubling, like punctuality (准时). If you invite people to a party at 7 o’clock your guests will consider it polite to turn up exactly on time in Germany, five minutes early in the American Midwest, an hour early in Japan, 15 minutes afterwards in the UK, up to an hour afterwards in Italy and some time in the evening in Greece. I prefer not to use the word “late” because there is nothing wrong with the times people arrive. It is simply the accepted thing to do in their own country.The author was unhappy as mentioned in Paragraph 1 because he thought _____.
A.the American bank didn’t think much of him |
B.the American bank might hire another person |
C.it’s difficult to get used to American culture |
D.it’s easy to misunderstand Americans |
The word “highlights” in Paragraph 2 probably means _______.
A.encourages | B.helps to narrow | C.increases | D.draws attention to |
According to the author, what should we do with most cultural differences?
A.Ask the native people for help. | B.Understand and accept them. |
C.Do things in our own way. | D.Do in-depth research. |
When invited to a party the people who are usually punctual(准时的)are ______.
A.Italians | B.Germans | C.Greeks | D.the British |
第一节:(共15小题,每小题2分,满分30分)
A
![]() Joshua, Helmut, and Bethlehem Michelle O. Donovan ISBN 9781462058679 Life is not easy for nine-year-old Joshua during World War II. Because of his family’s Jewish background, they are sent to live in the concentration camps (集中营). Scared and alone, Joshua one day makes frinds with a little mouse he calls Bethlehem who becomes his closest friend. ![]() Encourage Me! Inspirational Poetry Gloria Coykendall ISBN 9781412027854 It is an easy to read collection of poems originally written to encourage in faith and to be a cure for chromic depression(长期抑郁) … cure to strengthen identity and purpose. |
![]() More Things in Heaven Bill Bosworth ISBN 9780595433582 In his More Things in Heaven, Bill Bosworth presents presents the highlights of his 83 years of life, including his trips to India and the study of the writings of several great spiritual leaders. More things in Heaven will appeal to anyone who insists on finding the deepest meaning for their existence based on their own experience. |
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![]() Creation or Evolution Michael Ebifegha ISBN9781450289023 Were humans created, or did they evolve? How old is the Earth? The debate between science and religion continues to be heated. In Creation or Evolution, Michael Ebifegha examines these two opposed world views within the structure of empirical(实证的) science. |
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![]() Seeking the Edge Dr. Joseph L. Rose ISBN 9781462031795 Seeking the Edge provides the tools and techniques to find that edge in one’s life. ---driving readers to achieve success whether in your current job, finding a new job, in education, family, or even hobbies. |
Who wrote the story about a little boy and a little mouse?
A.Bill Bosworth. | B.Michelle O. Donovan. | C.Dr. Joseph L. Rose. | D.Gloria Coykendall. |
The ISBN for the book of poems is _______.
A.9781462031795 | B.9781412027854 | C.9780595433582 | D.9781462058679 |
What kind of readers will probably like reading More Things in Heaven?
A.Those who are searching for the meaning of life. |
B.Those who are trying to be spiritual leaders. |
C.Those who study the art of writing. |
D.Those who like traveling abroad. |
Which of the following books explores the origin of humans?
A.Seeking the Edge. | B.Creation or Evolution. |
C.Joshua, Helmut, and Bethlehem. | D.More Things in Heaven. |
Many people think a telephone is essential. But I think it is a pest and a time waster. Very often you find it impossible to escape from some idle or curious chatter-box, or from somebody who wants something for nothing. If you have a telephone in your own house, you will admit that it tends to ring when you are asleep, or in the middle of a meal or a conversation, or when you are just going out, or when you are taking your bath. Are you strong minded enough to ignore it, to say to yourself,“Ah, well, it will all be the same in a hundred years’ time” You are not. You think there may be some important news or messages for you. I can assure you that if a message is really important it will reach you sooner or later. Have you never rushed dripping from the bath, or chewing from the table, or dazed from the bed, only to be told that you are a wrong number?
But you will say, you need not have your name printed in the telephone directory, and you can have a telephone which is only usable for outgoing calls. Besides, you will say, isn’t it important to have a telephone in case of emergency—illness, an accident, or fire? Of course, you are right, but here in a thickly populated country like England one is seldom far from a telephone in case of dreadful necessity.
I think perhaps I had better try to justify myself by trying to prove that what I like is good. I admit that in different circumstances—if I were a tycoon(business VIP),for instance, or bed ridden I might find a telephone essential. But then if I were a taxi-driver I should find a car essential.
Let me put it another way: there are two things for which the English seem to show particular talent; one is mechanical invention, the other is literature. My own business happens to be with the use of words but I see I must now stop using them. For I have just been handed a slip of paper to say that somebody is waiting to speak to me on the telephone. I think I had better answer it. After all, one never knows, it may be something important.The passage is mainly discussing _______.
A.that we should be strong enough to ignore a phone call |
B.that important message will reach you sooner or later |
C.whether it’s necessary to answer all phone calls |
D.whether it is necessary to have a telephone |
Judging from the passage, who is strong-minded enough to ignore a phone call?
A.The author. | B.A tycoon. |
C.A taxi-driver. | D.Hardly anyone. |
According to the passage, the author________.
A.thinks the telephone should go out of our life |
B.likes to be different from other people |
C.thinks the telephone is annoying |
D.speaks favourably of a telephone |
In the author’s opinion, which of the following is NOT true?
A.Nearly everyone has been told a wrong number. |
B.It’s necessary for everyone to have a telephone. |
C.He himself can not decide whether to answer a call. |
D.A telephone directory may bring in unexpected calls. |
Boiler rooms are often dirty and steamy, but this one is clean and cool. Fox Point is a very new47-unit living building in South Bronx, one of the city’s poorest areas. Two-thirds of the people living there are formerly (以前) homeless people, whose rent is paid by the government. The rest are low-income families. The boiler room has special equipment, which produces energy for electricity and heat. It reuses heat that would otherwise be lost to the air, reducing carbon emissions(碳排放)while also cutting costs.
Fox Point is operated by Palladian, a group that specializes in providing housing and services to needy, people. Palladian received support from Enterprise Community Partners (ECP), which helps build affordable housing by providing support to housing developers.
ECP has created national standards for healthy, environmentally (环境方面) clever and affordable homes which are called, the Green Communities Standards. These standards include water keeping, energy saving and the use of environmentally friendly building materials. Meeting the standards increases housing construction costs by 2%, which is rapidly paid back by lower running costs. Even the positioning of a window to get most daylight can help save energy.
Michael. Bloomberg, New York's mayor, plans to create 165,000 affordable housing units for500,000 New Yorkers. Almost 80% of New York City’s greenhouse-gas emissions come from buildings, and 40% of those are caused, by housing. So he recently announced that the city’s Department of Housing and Preservation and Development (DHPD) , whose duty is to develop and keep the city’s supply of affordable housing, will require all its new projects to follow ECP’s green standards.
Similar measures have been taken by other cities such as Cleveland and Denver, but New York’s DHPD is the largest city developer of affordable housing in the country. What is the purpose of describing the boiler room in the first paragraph?
A.To explain the measures the city takes to care for poor people. |
B.To suggest that affordable housing is possible in all areas. |
C.To show how the environment-friendly building works. |
D.To compare old and new boiler rooms. |
What is an advantage of the buildings meeting the Green Communities Standards?
A.Lower running costs. |
B.Costing less in construction. |
C.Less air to be lost in hot days. |
D.Better prices for homeless people. |
It can be learned from the text that,
A.New York City is seriously polluted |
B.people’s daily life causes many carbon emissions in New York City |
C.a great number of people in New York City don't have houses to live in |
D.some other cities have developed more affordable housing than New York City |
What is the main purpose of this text?
A.To call on people to pay more attention to housing problems. |
B.To prove that some standards are needed for affordable housing. |
C.To ask society to help homeless people and low-income families. |
D.To introduce healthy, environmentally clever-and affordable housing. |
Mass transportation revised the social and economic fabric of the American city in three fundamental ways. It catalyzed physical expansion, it sorted out people and land uses, and it accelerated the inherent instability of urban life. By opening vast areas of unoccupied land for residential expansion, the omnibuses, horse railways, commuter trains, and electric trolleys pulled settled regions outward two to four times more distant form city centers than they were in the premodern era. In 1850, for example, the borders of Boston lay scarcely two miles from the old business district; by the turn of the century the radius extended ten miles. Now those who could afford it could live far removed from the old city center and still commute there for work, shopping, and entertainment. The new accessibility of land around the periphery of almost every major city sparked an explosion of real estate development and fueled what we now know as urban sprawl. Between 1890 and 1920, for example, some 250,000 new residential lots were recorded within the borders of Chicago, most of them located in outlying areas. Over the same period, another 550,000 were plotted outside the city limits but within the metropolitan area. Anxious to take advantage of the possibilities of commuting, real estate developers added 800,000 potential building sites to the Chicago region in just thirty years – lots that could have housed five to six million people.
Of course, many were never occupied; there was always a huge surplus of subdivided, but vacant, land around Chicago and other cities. These excesses underscore a feature of residential expansion related to the growth of mass transportation: urban sprawl was essentially unplanned. It was carried out by thousands of small investors who paid little heed to coordinated land use or to future land users. Those who purchased and prepared land for residential purposes, particularly land near or outside city borders where transit lines and middle-class inhabitants were anticipated, did so to create demand as much as to respond to it. Chicago is a prime example of this process. Real estate subdivision there proceeded much faster than population growth.With which of the following subjects is the passage mainly concerned?
[A] Types of mass transportation.
[B] Instability of urban life.
[C] How supply and demand determine land use.
[D] The effect of mass transportation on urban expansion.Why does the author mention both Boston and Chicago?
[A] To demonstrate positive and negative effects of growth.
[B] To exemplify cities with and without mass transportation.
[C] To show mass transportation changed many cities.
[D] To contrast their rate of growth.According to the passage, what was one disadvantage of residential expansion?
[A] It was expensive.
[B] It happened too slowly.
[C] It was unplanned.
[D] It created a demand for public transportation.The author mentions Chicago in the second paragraph as an example of a city,
[A] that is large.
[B] that is used as a model for land development.
[C] where the development of land exceeded population growth.
[D] with an excellent mass transportation system.
Vocabulary
1.revise 改变
2.fabric 结构
3.catalyze 催化,加速
4.sort out 把……分门别类,拣选
5.omnibus 公共汽车/马车
6.trolley (美)有轨电车,(英)无轨电车
7.periphery 周围,边缘
8.sprawl 建筑物无计划延伸,蔓延,四面八方散开
9.lot 小片土地
10.underscore 强调,在下面划横线
11.transit lines 运输线路
12.subdivision (出售的)小块土地,再划分小区