Researches at Johns Hopkins University's. Applied Physics laboratory ( APL) in Laurel , Maryland have designed a new human-like robot, Its name is Robo Sally. The machine can be controlled from a distance and can he used to do work that is dangerous for human beings.
Roho Sally has two long arms with human-like hands. She can use her fingers to pick up small objects .examine them in detail and do most things that human hands can do Each finger contains a tiny motor capable of squeezing 20 pounds of pinch foree ,.enough to defuse a bomb under the direction of an operator. She sits on a metal base with wheels that let her move around. turn in tight spaces and climb over small objects, .
Mike McLoughlin is the main investigator for the Applied Physics Laboratory's Prosthetics Program. "The purpose of that program is to develop prosthetic arms that have all the capability of your natural arms .and you do all the complex motions that we can do with the natural arm- with the robot. "
It was a difficult job. Mr. McLoughlin says the device had to have many small motors to。 have the ability to do what a human hand does; It also needs to have human-like strength. The thumb was especially difficult because it permits the hand .to hold objects. And everything had. to fit into a space about the size of a human hand.
The next problem .he says .was to figure out how to control the artificial hand. " So we had to figure out how to make the connection between the brain and this arm.
For search-and-rescue duties.Roho Sally will be operated by a human being using a wire- less machine that is far from the robot. The operator will also wear special gloves and glasses. The glasses permit the operator to see the robot's hands .even though they are far away.
Mr. McLoughlin says this kind of robots could be used in what he calls "dull , dirty or dan- gerous" situations where fine human finger movements are required. He says the technology is not ready for everyday application .but he predicts that within five years we will see some won- derful improvements.
【小题1】The underlined word " defuse" in Paragraph 2 is closest in meaning to "_________".
A.remove | B.discover | C.equip | D.produce |
A.They are expected to function as well as natural ones. |
B.They have many large motors controlled by robots. |
C.They have human-like strength to control the robot. |
D.They are connected with human brains. |
【小题1】A
【小题2】B
【小题3】A
【小题4】C
解析试题分析:文章介绍了一种新型的类人机器人,介绍了她的外观,功能和设计的过程,特别指出这种机器人有象人一样的手指,可以做很多人可以做的事情,而且,在一些危险的情况,她也可以发挥作用。
【小题1】猜词题:从第二段的句子:Each finger contains a tiny motor capable of squeezing 20 pounds of pinch force ,.enough to defuse a bomb under the direction of an operator. 可知机器人的每个手指上都有个小马达,能产生20磅的握力,足以在操作员的指导下拆掉炸弹。所以选A
【小题2】细节题:从第二段的句子:Roho Sally has two long arms with human-like hands.和 She sits on a metal base with wheels that let her move around. turn in tight spaces and climb over small objects, .
可知这个机器人是类人机器人,有象人一样的长膀子和手,选B
【小题3】细节题:从第三段的句子:"The purpose of that program is to develop prosthetic arms that have all the capability of your natural arms .and you do all the complex motions that we can do with the natural arm- with the robot. "可知这个项目的目的是开发具有人手所有功能的假肢,使之能像人手那样做复杂的动作。所以是想让prosthetic arms有自然的手的功能,选A。
【小题4】推理题:从最后一段的句子:Mr. McLoughlin says this kind of robots could be used in what he calls "dull , dirty or dan- gerous" situations where fine human finger movements are required. 可知Mr. McLoughlin 认为这种类人机器人可以用在危险的情况下,选C
考点:考查科普类短文
科目:高中英语 来源: 题型:阅读理解
Move Earth—It’s Not Science Fiction
LONDON—Scientists have found an unusual way to prevent our planet from overheating: move it to a cooler spot. All you have to do is send a few comets(彗星)in the direction of Earth, and its orbit will be changed. Our world will then be sent spinning into a safer, colder part of the solar system.
This idea for improving our climate comes from a group of US National Aeronautics and Space Administration(NASA)engineers and American astronomers. They say their plan could add another six billion years to the useful lifetime of our planet—effectively doubling its working life.
The plan put forward by Dr. Laughlin, and his colleagues Don Korycansky and Fred Adams, needs carefully directing a comet or asteroid so that it passes close by our planet and sends some of its gravitational energy to Earth.
“Earth’s orbital speed would increase as a result and we would move to a higher orbit away from the Sun, ”Laughlin said.
Engineers would then direct their comet so that it passed close to Jupiter or Saturn. The comet would pick up energy from one of these giant planets. Later its orbit would bring it back to Earth, and the process would be repeated.
In the short term, the plan provides an ideal way to global warming, although the team was actually concerned with a much greater danger. The Sun is certain to heat up in about a billion years and so“seriously compromise” our biosphere(生物圈)—by cooking us.
That’s why the group decided to try to save Earth.
The plan has one or two worrying aspects, however. For a start, space engineers would have to be very careful about how they directed their asteroid or comet towards Earth. The smallest miscalculation(误算)in orbit could fire it straight at Earth—with deadly consequences.
There is also the question of the Moon. As the current issue of Scientific American magazine points out, if Earth was pushed out of its current position, it is“most likely the Moon would be stripped away from Earth”. This would greatly change our planet’s climate.
【小题1】What makes the scientists plan to move Earth?
A.A few comets are moving to the direction of Earth. |
B.Earth’s working life is coming to an end soon. |
C.Earth will become too hot for mankind to keep alive. |
D.The moon is moving farther and farther away from Earth. |
A.12 billion | B.6 billion |
C.18 billion | D.24 billion |
A.The comet might hit Earth and man might lose the Moon. |
B.Earth might be moved too far away and man might be frozen to death. |
C.The comet might hit Jupiter or Saturn and never return to Earth. |
D.Earth’s working life might be greatly shortened. |
A.Provide. | B.Benefit. |
C.Share. | D.Endanger. |
查看答案和解析>>
科目:高中英语 来源: 题型:阅读理解
(2013·高考福建卷,B)Your glasses may someday replace your smartphone,and some New Yorkers are ready for the switch.Some in the city can’t wait to try them on and use the maps and GPS that the futuristic eyewear is likely to include.
“ I’d use it if I were hanging out with friends at 3 a.m.and going to the bar and wanted to see what was open,”said Walter Choo,40,of Fort Greene.
The smartphonelike glasses will likely come out this year and cost between $250 and $600,the Times said,possibly including a variation of augmented(增强的) reality,a technology already available on smartphones and tablets (平板电脑) that overlays information onto the screen about one’s surroundings.So,for example,if you were walking down a street,indicators would pop_up showing you the nearest coffee shop or directions could be plotted out and come into view right on the sidewalk in front of you.
“As far as a mainstream consumer product,this just isn’t something anybody needs,”said Sam Biddle,who writes for Gizmodo.com.“ We’re accustomed to having one thing in our pocket to do all these things,”he added,“and the average consumer isn’t gonna be able to afford another device (装置) that’s hundreds and hundreds of dollars.”
9to5Google publisher Seth Weintraub,who has been reporting on the smartphonelike glasses since late last year,said he is confident that this type of wearable device will eventually be as common as smartphones.
“It’s just like smartphones 10 years ago,”Weintraub said.“A few people started getting emails on their phones,and people thought that was crazy.Same kind of thing.We see people bending their heads to look at their smartphones,and it’s unnatural,”he said.“ There’s gonna be improvements to that,and this a step there.”
【小题1】One of the possible functions of the smartphonelike glasses is to ________.
A.program the opening hours of a bar |
B.supply you with a picture of the future |
C.provide information about your surroundings |
D.update the maps and GPS in your smartphones |
A.develop rapidly |
B.get round quickly |
C.appear immediately |
D.go over automatically |
A.necessary for teenagers |
B.attractive to New Yorkers |
C.available to people worldwide |
D.expensive for average consumers |
A.may have a potential market |
B.are as common as smartphones |
C.are popular among young adults |
D.will be improved by a new technology |
查看答案和解析>>
科目:高中英语 来源: 题型:阅读理解
As they migrate (迁移), butterflies and moths choose the winds they want to fly with, and they change their body positions if they start floating in the wrong direction. This new finding suggests that insects may employ some of the same methods that birds use for traveling long distances. Scientists have long thought that insects were simply at the mercy of the wind.
Fascinating as their skills of flight are, migrating behavior has been difficult to study in insects because many long distant trips happen thousands of feet above ground. Only recently have scientists developed technologies that can detect (测出) such little creatures at such great heights.
To their surprise, though, the insects weren’t passive travelers on the winds. In autumn, for example, most light winds blew from the east, but the insects somehow sought out ones that carried them south and they positioned themselves to navigate directly to their wintering homes.
Even in the spring, when most winds flowed northward, the insects didn’t always go with the flow. If breezes weren’t blowing in the exact direction they wanted to go, the insects changed their body positions to compensate (补偿). Many migrating birds do the same thing.
The study also found, butterflies and moths actively flew within the air streams that pushed them along. By adding flight speeds to wind speeds, the scientists calculated that butterflies and moths can travel as fast as 100 kilometers an hour. The findings may have real-world applications. With climate warming, migrating insects are growing in number. Knowing how and when these pests move could help when farmers decide when to spray their crops.
【小题1】What’s the main idea of the text?
A.Insects migrate with the seasons. |
B.Wind helps insects greatly in migrating. |
C.Windsurfing insects have real direction. |
D.Scientists have trouble in observing insects. |
A.insects always waited for their favorable winds |
B.insects chose the winds they wanted to ride |
C.insects were just blown about by the wind |
D.insects positioned themselves in the winds |
A.the little creatures can fly very fast |
B.they have no regular migrating courses |
C.the wind’s direction is hard to foresee |
D.their flight is long and high above ground |
A.insects fly in the way birds do |
B.insects travel more easily in autumn |
C.insects never position themselves when flying low |
D.insects rest a lot when the wind pushes them along |
A.increase insects in number | B.instruct farmers when to spray |
C.prevent climate warming | D.help protect insects |
查看答案和解析>>
科目:高中英语 来源: 题型:阅读理解
Fahad Azad, an engineer in India, invented a robot named DuctBot.The toy-car sized DuctBot measured 23 centimeters in length, 19 centimeters in width and 9 centimeters in height and weighs just two kilograms.
The robot is designed to snake through dark, narrow air conditioning ducts (管道) and clean them.A pair of LEDs fitted on the robot light up the dirty scenery, so it can be captured (抓拍) by a camera.
In order to control it more easily, Mr. Azad chooses to fix DuctBot on wheels.The robot can clean off lots of dirt, as well as dead pigeons and insects.Keeping indoor air in good quality and monitoring carbon-dioxide levels in buildings with central air conditioning is a challenge.It is important in some places where clean air can mean a difference between life and death, such as hospitals.Dirty air has a bad influence on people's health.
EPSCO, a Dubai-based company which specializes in improving indoor air quality, read about Mr. Azad's invention in a national newspaper after he had won an international robotics competition.EPSCO had cleaning equipment, but it needed someone to get into those ducts to do the dirty, dangerous work.Across India, for example, the task still falls to children.They are small enough to go through those ducts.
In 2005, Mr. Azad who was still at university decided to do something about it.Six years later his own company, Robosoft Systems, has Bluestar, EPSCO and the Indian Navy, some leading air condition makers, as partners.
Mr. Azad and his ten employees are currently exploring robot designs to examine oil tanks or sewage (污水)pipes.Their biggest challenge is to make the robots user-friendly enough.Mr. Azad hopes that the robot could eventually be operated not by engineers but by workers.There will be lots of difficulties they need to overcome in the future.
【小题1】What can we learn about Ductbot?
A.It is a toy car and popular with children. |
B.It is designed to move like a snake in the ducts. |
C.many LEDs are fitted on it to tell its location. |
D.It is actually a camera to capture dirty scenery. |
A.the camera | B.the conditioning duct |
C.the LED light | D.the dirty scenery |
A.Clean off the dirt in the ducts. |
B.Control the central conditioning. |
C.Reduce carbon-dioxide in buildings. |
D.Protect more animals in city. |
A.has won an international robotics competition |
B.hired children to clean the dirty ducts in the past |
C.is the only partner of Robosoft Systems |
D.specializes in improving people's health |
A.Only engineers can operate the Ductbot now. |
B.New ways have been found to examine oil tanks. |
C.Azad's difficulties are impossible to overcome. |
D.Azad's team are working to improve their robot designs. |
查看答案和解析>>
科目:高中英语 来源: 题型:阅读理解
There is some unwelcome news for students preparing for exams and officers putting in long hours-----you don't need the break as much as you may think that makes you feel less tired.
Scientists have long assumed that willpower (意志力) is a limited resource, which is why you feel the need to have a rest, have a snack and come back to a task when you're feeling better. They argued that the only way to restore willpower was by rest, food or entertainment.
But psychologists have challenged this theory, saying weak willpower is all in your head. They found that people's beliefs in willpower determine how long and how well they'll be able to work on a tough mental exercise. "If you think of willpower as something that's limited, you're more likely to be tired when you perform a difficult task," said Prof.Veronika Job. "'But if you think of willpower as something that is not easily used up, you can go on and on."
The researchers designed four experiments to test students'-beliefs in willpower. After a tiring task, those, who believed or were led to believe that willpower is a limited resource, performed worse on standard concentration tests than those who thought of willpower as something they had more control over. They also found that leading up to final exam week, students who believed the limited resource theory ate junk food 24 percent more often than those who believed they had more control in resisting temptation (诱惑).
Mr. Job said. "The theory that willpower is a limited resource is interesting, but it has had unintended consequences. Students who may already have trouble studying are being told that their power of concentration is limited, and they need to take frequent breaks. But a belief in willpower as a non-limited resource makes people stronger in their ability to work through challenges.'"
The findings could help people who are" battling temptation. Willpower isn't driven by a biologically based process as much as we used to think. The belief in it is what influences your behavior.
【小题1】The theory that willpower is limited supports that _________.
A.people must eat snacks when they feel tired |
B.people do need a break to restore their willpower |
C.there’s no way to strengthen people’s willpower |
D.weak willpower doesn’t affect people’s life much |
A.It is in the charge of people. |
B.It is a limited resource. |
C.There is no way to restore willpower. |
D.It doesn’t easily run out. |
A.Push themselves even if they want to take a break. |
B.Don’t eat fast food while studying. |
C.Remind themselves willpower is not limited. |
D.Stay in a comfortable and quiet place. |
A.patients following strict diets |
B.children liking to watch TV |
C.smokers trying to give up smoking |
D.employees facing a new but well-paid task |
A.A new theory about willpower | B.How to build strong willpower |
C.The great influence of willpower | D.Willpower doesn’t last long |
查看答案和解析>>
科目:高中英语 来源: 题型:阅读理解
Not long ago, people thought babies were not able to learn things until they were five or six months old. Yet doctors in the United States say babies begin learning on their first day of life.
Scientists note that babies are strongly influenced by their environment. They say a baby will smile if her mother does something the baby likes. A baby learns to get the best care possible by smiling to please her mother or other caregiver. This is how babies learn to connect and communicate with other human beings.
One study shows that babies can learn before they are born. The researchers placed a tape recorder on the stomach of a pregnant woman. Then, they played a recording of a short story. On the day the baby was born, the researchers attempted to find if he knew the sounds of the story repeated while in his mother. They did this by placing a device in the mouth of the newborn baby. The baby would hear the story if he moved his mouth one way. If the baby moved his mouth the other way, he would hear a different story. The researchers say the baby clearly liked the story he heard before he was born. They say the baby would move his mouth so he could hear the story again and again.
Another study shows how mothers can strongly influence social development and language skills in their children. Researchers studied the children from the age of one month to three years. The researchers attempted to measure the sensitivity of the mothers. The women were considered sensitive if they supported their children’s activities and did not interfere unnecessarily. They tested the children for thinking and language development when they were three years old. Also, the researchers observed the women for signs of depression.
The children of depressed women did not do as well in tests as the children of women who did not suffer from depression. The children of depressed women did poorly in tests of language skills and understanding what they hear.
These children also were less cooperative and had more problems dealing with other people. The researchers noted that the sensitivity of the mothers was important to the intelligence development of their children. Children did better when their mothers were caring, even when they suffered from depression.
【小题1】According to the passage, which of the following is NOT the factor that influences intelligence development in babies?
A.The environment. | B.Mother’s sensitivity. |
C.Their peers (同龄人) | D.Education before birth. |
A.To prove that babies can learn before they are born. |
B.To prove that babies can learn on the first day they are born. |
C.To show mothers can strongly influence intelligence development in their babies. |
D.To indicate early education has a deep effect on the babies’ language skills. |
A.The children of depressed mothers who cared little for their children. |
B.The children of women who did not suffer from depression. |
C.The children of depressed but caring mothers. |
D.Children with high communication abilities. |
A.Scientific findings about how babies develop before birth. |
B.Scientific findings about how the environment has an effect on babies’ intelligence. |
C.A study shows babies are not able to learn things until they are rice or six months old. |
D.Scientific findings about how intelligence develops in babies. |
查看答案和解析>>
科目:高中英语 来源: 题型:阅读理解
Waste can be seen everywhere in the school. Some students ask for more food than they can eat and others often forget to turn off the lights when they leave the classroom. They say they can afford these things. But I don’t agree with them.
Waste can bring a lot of problems. Although China is rich in some resources(资源), we are short of(缺乏) others, for example, fresh water(淡水). It is reported that we will have no coal(煤) or oil to use in 100 years. So if we go on wasting our resources, what can we use in the future and where can we move? Think about it. I think we should say no to the students who waste things every day. Everybody should stop wasting as soon as possible.
In our everyday life, we can do many things to prevent waste from happening, for example, turn off the water taps(水龙头) when we finish washing, turn off the lights when we leave the classroom, try not to order more food than we need, and so on. Little by little, everything will be changed. Waste can be stopped one day, if we do our best.
【小题1】From the passage we know that some students often _______ in the school.
A.eat too much | B.don’t work hard | C.waste things | D.throw rubbish everywhere |
A.Fresh water. | B.Forest. | C.Oil. | D.Coal. |
A.We may still have enough oil. | B.We may still have enough coal. |
C.We may have a little oil. | D.We may have no coal or oil to use. |
A.Stop Wasting | B.School life |
C.Waste in the School | D.Rich Resources in China |
查看答案和解析>>
科目:高中英语 来源: 题型:阅读理解
The common cold is the world's most widespread illness, which is plagues(疫病) that flesh receives.
The most widespread mistake of all is that colds are caused by cold. They are not. They are caused by viruses(病毒) passing on from person to person. You catch a cold by coming into contact, directly or indirectly, with someone who already has one. If cold causes colds, it would be reasonable to expect the Eskimos to suffer from them forever. But they do not. And in isolated Arctic regions explorers have reported being free from colds until coming into contact again with infected people from the outside world by way of packages and mail dropped from airplanes.?
During the First World War soldiers who spent long periods in the trenches(战壕), cold and wet, showed no increased tendency to catch colds.?
In the Second World War prisoners at the notorious Auschwitz concentration camp(奥斯维辛集中营), naked and starving, were astonished to find that they seldom had colds.?
At the Common Cold Research Unit in England, volunteers took part in Experiments in which they gave themselves to the discomforts of being cold and wet for long stretches of time. After taking hot baths, they put on bathing suits, allowed themselves to be with cold water, and then stood about dripping wet in drafty room. Some wore wet socks all day while others exercised in the rain until close to exhaustion. Not one of the volunteers came down with a cold unless a cold virus was actually dropped in his nose.?
If, then, cold and wet have nothing to do with catching colds, why are they more frequent in the winter? Despite the most pains—taking research, no one has yet found the answer. One explanation offered by scientists is that people tend to stay together indoors more in cold weather than at other times, and this makes it easier for cold viruses to be passed on.?
No one has yet found a cure for the cold. There are drugs and pain suppressors(止痛片) such as aspirin, but all they do is to relieve the symptoms(症状).
【小题1】The writer offered _______ examples to support his argument.
A.4 | B.5 | C.6 | D.3 |
A.The Eskimos do not suffer from colds all the time. |
B.Colds are not caused by cold. |
C.People suffer from colds just because they like to stay indoors. |
D.A person may catch a cold by touching someone who already had one. |
A.they are working in the isolated Arctic regions |
B.they are writing reports in terribly cold weather |
C.they are free from work in the isolated Arctic regions |
D.they are coming into touch again with the outside world |
A.the fallacy about the common cold |
B.the experiments on the common cold |
C.the reason and the way people catch colds |
D.the continued spread of common colds |
查看答案和解析>>
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com