Purdue University researchers have engineered flying robots that behave like hummingbirds, trained by machine learning algorithms (计算程序) based on various techniques the bird uses naturally every day. The robot would be able to fly better through collapsed buildings to find trapped victims.
Even though such a robot can’t see yet, it senses by touching surfaces. Each touch changes an electric current, which the researchers realized that they could track. Xinyan Deng, a professor, and her colleagues at Purdue have been trying to decode (破译) hummingbird flight so that robots can fly where larger aircraft can’t. Deng’s group studied hummingbirds themselves for many summers in Montana. They documented key hummingbird actions, such as making a rapid 180-degree turn, and translated them to computer algorithms that the robot could learn from when connected with a simulation (模拟操作).
Further study on the physics of insects and hummingbirds allowed Purdue researchers to build robots smaller than hummingbirds--and even as small as insects-without compromising the way they fly. The smaller the size, the greater the wing flapping frequency, and the more efficiently they fly. The robots have 3D-printed bodies and wings made of carbon fiber. The researchers have built one hummingbird robot weighing 12 grams--the weight of the average adult hummingbird. The hummingbird robot can lift up to 27 grams.
Designing their robots with higher lift gives the researchers more room to eventually add a battery and sensing technology, such as a-camera or GPS. Currently, the robot needs to be tied to an energy source while it flies-but that won’t be for much longer, the researchers say. The robots could fly silently just as a real hummingbird does, making them more ideal for covert (转换) operations.
Robotic hummingbirds would not only help with search-and-rescue tasks, but also allow biologists to more reliably study hummingbirds. In their natural environment through the senses of a realistic robot. This work is part of Purdue’s 1501° anniversary. This is one of the four themes of the celebration’s Ideas Festival, designed to show Purdue as an intellectual center solving real-world issues.
1.The hummingbird robot could be helpful in searching for victims .
A.in a very wide area B.in a desert
C.in a dark place D.in the sea
2.What can we know about the hummingbird robot?
A.It is as light as an insect. B.It can fly to any place.
C.It can see where to go. D.The smaller it is, the better.
3.What is the disadvantage of the robotic hummingbird at present?
A.It barely lifts its weight. B.It’s not equipped with a battery.
C.It can’t fly too high in the sky. D.It produces a little noise outside.
4.Besides being useful in rescues, the hummingbird robot can help .
A.biologists to study hummingbirds B.biologists to study wildlife
C.transport dangerous goods D.protect birds in the wild
高三英语阅读理解困难题
Purdue University researchers have engineered flying robots that behave like hummingbirds, trained by machine learning algorithms (计算程序) based on various techniques the bird uses naturally every day. The robot would be able to fly better through collapsed buildings to find trapped victims.
Even though such a robot can’t see yet, it senses by touching surfaces. Each touch changes an electric current, which the researchers realized that they could track. Xinyan Deng, a professor, and her colleagues at Purdue have been trying to decode (破译) hummingbird flight so that robots can fly where larger aircraft can’t. Deng’s group studied hummingbirds themselves for many summers in Montana. They documented key hummingbird actions, such as making a rapid 180-degree turn, and translated them to computer algorithms that the robot could learn from when connected with a simulation (模拟操作).
Further study on the physics of insects and hummingbirds allowed Purdue researchers to build robots smaller than hummingbirds--and even as small as insects-without compromising the way they fly. The smaller the size, the greater the wing flapping frequency, and the more efficiently they fly. The robots have 3D-printed bodies and wings made of carbon fiber. The researchers have built one hummingbird robot weighing 12 grams--the weight of the average adult hummingbird. The hummingbird robot can lift up to 27 grams.
Designing their robots with higher lift gives the researchers more room to eventually add a battery and sensing technology, such as a-camera or GPS. Currently, the robot needs to be tied to an energy source while it flies-but that won’t be for much longer, the researchers say. The robots could fly silently just as a real hummingbird does, making them more ideal for covert (转换) operations.
Robotic hummingbirds would not only help with search-and-rescue tasks, but also allow biologists to more reliably study hummingbirds. In their natural environment through the senses of a realistic robot. This work is part of Purdue’s 1501° anniversary. This is one of the four themes of the celebration’s Ideas Festival, designed to show Purdue as an intellectual center solving real-world issues.
1.The hummingbird robot could be helpful in searching for victims .
A.in a very wide area B.in a desert
C.in a dark place D.in the sea
2.What can we know about the hummingbird robot?
A.It is as light as an insect. B.It can fly to any place.
C.It can see where to go. D.The smaller it is, the better.
3.What is the disadvantage of the robotic hummingbird at present?
A.It barely lifts its weight. B.It’s not equipped with a battery.
C.It can’t fly too high in the sky. D.It produces a little noise outside.
4.Besides being useful in rescues, the hummingbird robot can help .
A.biologists to study hummingbirds B.biologists to study wildlife
C.transport dangerous goods D.protect birds in the wild
高三英语阅读理解困难题查看答案及解析
A team of engineers at Harvard University has been inspired by Nature to create the first robotic fly. The mechanical fly has become a platform for a series of new high-tech integrated systems. Designed to do what a fly does naturally, the tiny machine is the size of a fat housefly. Its mini wings allow it to stay in the air and perform controlled flight tasks.
“It’s extremely important for us to think about this as a whole system and not just the sum of a bunch of individual components (元件),” said Robert Wood, the Harvard engineering professor who has been working on the robotic fly project for over a decade. A few years ago, his team got the go-ahead to start piecing together the components. “The added difficulty with a project like this is that actually none of those components are off the shelf and so we have to develop them all on our own,” he said.
They engineered a series of systems to start and drive the robotic fly. “The seemingly simple system which just moves the wings has a number of interdependencies on the individual components, each of which individually has to perform well, but then has to be matched well to everything it’s connected to,” said Wood. The flight device was built into a set of power, computation, sensing and control systems. Wood says the success of the project proves that the flying robot with these tiny components can be built and manufactured.
While this first robotic flyer is linked to a small, off-board power source, the goal is eventually to equip it with a built-in power source, so that it might someday perform data-gathering work at rescue sites, in farmers’ fields or on the battlefield. “Basically it should be able to take off, land and fly around,” he said.
Wood says the design offers a new way to study flight mechanics and control at insect-scale. Yet, the power, sensing and computation technologies on board could have much broader applications. “You can start thinking about using them to answer open scientific questions, you know, to study biology in ways that would be difficult with the animals, but using these robots instead,” he said. “So there are a lot of technologies and open interesting scientific questions that are really what drives us on a day to day basis.”
1.The robotic fly project has been conducted __________.
A. just by accident
B. within a decade
C. just by a professor
D. for more than ten years
2.The difficulty the team of engineers met with while making the robotic fly was that __________.
A. they had no model in their mind
B. they did not have sufficient time
C. they had no ready-made components
D. they could not assemble the components
3.Which of the following can be learned from the passage?
A. The robotic flyer is designed to learn about insects.
B. Animals are not allowed in biological experiments.
C. There used to be few ways to study how insects fly.
D. Wood’s design can replace animals in some experiments.
4.Which of the following might be the best title of the passage?
A. Father of Robotic Fly
B. Inspiration from Engineering Science
C. Robotic Fly Imitates Real Life Insect
D. Harvard Breaks Through in Insect Study
高三英语阅读理解中等难度题查看答案及解析
A team of engineers at Harvard University has been inspired by Nature to create the first robotic fly. The mechanical fly has become a platform for a series of new high-tech integrated systems. Designed to do what a fly does naturally, the tiny machine is the size of a fat housefly. Its mini wings allow it to stay in the air and perform controlled flight tasks.
“It’s extremely important for us to think about this as a whole system and not just the sum of a bunch of individual components (元件),” said Robert Wood, the Harvard engineering professor who has been working on the robotic fly project for over a decade. A few years ago, his team got the go-ahead to start piecing together the components. “The added difficulty with a project like this is that actually none of those components are off the shelf and so we have to develop them all on our own,” he said.
They engineered a series of systems to start and drive the robotic fly. “The seemingly simple system which just moves the wings has a number of interdependencies on the individual components, each of which individually has to perform well, but then has to be matched well to everything it’s connected to,” said Wood. The flight device was built into a set of power, computation, sensing and control systems. Wood says the success of the project proves that the flying robot with these tiny components can be built and manufactured.
While this first robotic flyer is linked to a small, off-board power source, the goal is eventually to equip it with a built-in power source, so that it might someday perform data-gathering work at rescue sites, in farmers’ fields or on the battlefield. “Basically it should be able to take off, land and fly around,” he said.
Wood says the design offers a new way to study flight mechanics and control at insect-scale. Yet, the power, sensing and computation technologies on board could have much broader applications. “You can start thinking about using them to answer open scientific questions, you know, to study biology in ways that would be difficult with the animals, but using these robots instead,” he said. “So there are a lot of technologies and open interesting scientific questions that are really what drives us on a day to day basis.”
1.The difficulty the team of engineers met with while making the robotic fly was that ________.
A. they had no model in their mind
B. they did not have sufficient time
C. they had no ready-made components
D. they could not assemble the components
2.It can be inferred from paragraphs 3 and 4 that the robotic fly ________.
A. consists of a flight device and a control system
B. can just fly in limited areas at the present time
C. can collect information from many sources
D. has been put into wide application
3.Which of the following can be learned from the passage?
A. The robotic flyer is designed to learn about insects.
B. Animals are not allowed in biological experiments.
C. There used to be few ways to study how insects fly.
D. Wood’s design can replace animals in some experiments.
4.Which of the following might be the best title of the passage?
A. Father of Robotic Fly
B. Inspiration from Engineering Science
C. Robotic Fly Imitates Real Life Insect
D. Harvard Breaks Through in Insect Study
高三英语阅读理解中等难度题查看答案及解析
A team of engineers at Harvard University has been inspired by Nature to create the first robotic fly. The mechanical fly has become a platform for a series of new high-tech integrated systems. Designed to do what a fly does naturally, the tiny machine is the size of a fat housefly. Its mini wings allow it to stay in the air and perform controlled flight tasks.
“It’s extremely important for us to think about this as a whole system and not just the sum of a bunch of individual components,” said Robert Wood, the Harvard engineering professor who has been working on the robotic fly project for over a decade. A few years ago, his team got the go-ahead to start piecing together the components. “The added difficulty with a project like this is that actually none of those components are off the shelf and so we have to develop them all on our own,” he said.
They engineered a series of systems to start and drive the robotic fly. “The seemingly simple system which just moves the wings has a number of interdependencies on the individual components, each of which individually has to perform well, but then has to be matched well to everything it’s connected to,” said Wood. The flight device was built into a set of power, computation, sensing and control systems. Wood says the success of the project proves that the flying robot with these tiny components can be built and manufactured.
While this first robotic flyer is linked to a small, off-board power source, the goal is eventually to equip it with a built-in power source, so that it might someday perform data-gathering work at rescue sites, in farmers’ fields or on the battlefield. “Basically, it should be able to take off, land and fly around,” he said.
Wood says the design offers a new way to study flight mechanics and control at insect-scale. Yet, the power, sensing and computation technologies on board could have much broader applications. “You can start thinking about using them to answer open scientific questions, you know, to study biology in ways that would be difficult with the animals, but using these robots instead,” he said. “So there are a lot of technologies and open interesting scientific questions that are really what drives us on a day to day basis.”
1.Which of the following statements was the difficulty engineers met while making the robotic fly?
A.They did not have sufficient fund.
B.No ready-made components were available.
C.There was no model in their mind.
D.It was hard for them to assemble the components.
2.What can be inferred from paragraphs 3 and 4?
A.The robotic fly has been put into wide application.
B.The robotic fly consists of a flight device and a control system.
C.Information from many sources can be collected by the robotic fly.
D.The robotic fly can just fly in limited areas at present.
3.Which of the following can be learned from the passage?
A.Wood’s design can replace animals in some experiments.
B.Animals are not allowed in biological experiments.
C.The robotic flyer is designed to learn about insects.
D.There used to be few ways to study how insects fly.
4.Which of the following might be the best title of the passage?
A.The Development of Robotic Fly
B.Robotic Fly Promotes Engineering Science
C.Harvard’s Efforts in Making Robotic Fly
D.Robotic Fly Imitates Real Life Insect
高三英语阅读理解中等难度题查看答案及解析
A team of engineers at Harvard University has been inspired by Nature to create the first robotic fly. The mechanical fly has become a platform for a series of new high-tech integrated systems. Designed to do what a fly does naturally, the tiny machine is the size of a fat housefly. Its mini wings allow it to stay in the air and perform controlled flight tasks.
“It’s extremely important for us to think about this as a whole system and not just the sum of a bunch of individual components (元件),” said Robert Wood, the Harvard engineering professor who has been working on the robotic fly project for over a decade. A few years ago, his team got the go-ahead to start piecing together the components. “The added difficulty with a project like this is that actually none of those components are off the shelf and so we have to develop them all on our own,” he said.
They engineered a series of systems to start and drive the robotic fly. “The seemingly simple system which just moves the wings has a number of interdependencies on the individual components, each of which individually has to perform well, but then has to be matched well to everything it’s connected to,” said Wood. The flight device was built into a set of power, computation, sensing and control systems. Wood says the success of the project proves that the flying robot with these tiny components can be built and manufactured.
While this first robotic flyer is linked to a small, off-board power source, the goal is eventually to equip it with a built-in power source, so that it might someday perform data-gathering work at rescue sites, in farmers’ fields or on the battlefield. “Basically it should be able to take off, land and fly around,” he said.
Wood says the design offers a new way to study flight mechanics and control at insect-scale. Yet, the power, sensing and computation technologies on board could have much broader applications. “You can start thinking about using them to answer open scientific questions, you know, to study biology in ways that would be difficult with the animals, but using these robots instead,” he said. “So there are a lot of technologies and open interesting scientific questions that are really what drives us on a day to day basis.”
1.The difficulty the team of engineers met with while making the robotic fly was that __________.
A.they had no model in their mind
B.they did not have sufficient time
C.they had no ready-made components
D.they could not assemble the components
2.It can be inferred from paragraphs 3 and 4 that the robotic fly __________.
A.consists of a flight device and a control system
B.can just fly in limited areas at the present time
C.can collect information from many sources
D.has been put into wide application
3.Which of the following can be learned from the passage?
A.The robotic flyer is designed to learn about insects.
B.Animals are not allowed in biological experiments.
C.There used to be few ways to study how insects fly.
D.Wood’s design can replace animals in some experiments.
4.Which of the following might be the best title of the passage?
A.Father of Robotic Fly
B.Inspiration from Engineering Science
C.Robotic Fly Imitates Real Life Insect
D.Harvard Breaks Through in Insect Study
高三英语阅读理解中等难度题查看答案及解析
A team of engineers at Harvard University has been inspired by Nature to create the first robotic fly. The mechanical fly has become a platform for a series of new high-tech integrated systems. Designed to do what a fly does naturally, the tiny machine is the size of a fat housefly. Its mini wings allow it to stay in the air and perform controlled flight tasks.
“It’s extremely important for us to think about this as a whole system and not just the sum of a bunch of individual components (元件),” said Robert Wood, the Harvard engineering professor who has been working on the robotic fly project for over a decade. A few years ago, his team got the go-ahead to start piecing together the components. “The added difficulty with a project like this is that actually none of those components are off the shelf and so we have to develop them all on our own,” he said.
They engineered a series of systems to start and drive the robotic fly. “The seemingly simple system which just moves the wings has a number of interdependencies on the individual components, each of which individually has to perform well, but then has to be matched well to everything it’s connected to,” said Wood. The flight device was built into a set of power, computation, sensing and control systems. Wood says the success of the project proves that the flying robot with these tiny components can be built and manufactured.
While this first robotic flyer is linked to a small, off-board power source, the goal is eventually to equip it with a built-in power source, so that it might someday perform data-gathering work at rescue sites, in farmers’ fields or on the battlefield. “Basically it should be able to take off, land and fly around,” he said.
Wood says the design offers a new way to study flight mechanics and control at insect-scale. Yet, the power, sensing and computation technologies on board could have much broader applications. “You can start thinking about using them to answer open scientific questions, you know, to study biology in ways that would be difficult with the animals, but using these robots instead,” he said. “So there are a lot of technologies and open interesting scientific questions that are really what drives us on a day to day basis.”
(392 words)
1.The difficulty the team of engineers met with while making the robotic fly was that __________.
A.they had no model in their mind
B.they did not have sufficient time
C.they had no ready-made components
D.they could not assemble the components
2.It can be inferred from paragraphs 3 and 4 that the robotic fly __________.
A.consists of a flight device and a control system
B.can just fly in limited areas at the present time
C.can collect information from many sources
D.has been put into wide application
3.Which of the following can be learned from the passage?
A.The robotic flyer is designed to learn about insects.
B.Animals are not allowed in biological experiments.
C.There used to be few ways to study how insects fly.
D.Wood’s design can replace animals in some experiments.
4.Which of the following might be the best title of the passage?
A.Father of Robotic Fly
B.Inspiration from Engineering Science
C.Robotic Fly Imitates Real Life Insect
D.Harvard Breaks Through in Insect Study
高三英语阅读理解困难题查看答案及解析
A team of engineers at Harvard University has been inspired by Nature to create the first robotic fly. The mechanical fly has become a platform for a series of new high-tech integrated systems. Designed to do what a fly does naturally, the tiny machine is the size of a fat housefly. Its mini wings allow it to stay in the air and perform controlled flight tasks.
“It’s extremely important for us to think about this as a whole system and not just the sum of a bunch of individual components (元件),” said Robert Wood, the Harvard engineering professor who has been working on the robotic fly project for over a decade. A few years ago, his team got the go-ahead to start piecing together the components. “The added difficulty with a project like this is that actually none of those components are off the shelf and so we have to develop them all on our own,” he said.
They engineered a series of systems to start and drive the robotic fly. “The seemingly simple system which just moves the wings has a number of interdependencies on the individual components, each of which individually has to perform well, but then has to be matched well to everything it’s connected to,” said Wood. The flight device was built into a set of power, computation, sensing and control systems. Wood says the success of the project proves that the flying robot with these tiny components can be built and manufactured.
While this first robotic flyer is linked to a small, off-board power source, the goal is eventually to equip it with a built-in power source, so that it might someday perform data-gathering work at rescue sites, in farmers’ fields or on the battlefield. “Basically it should be able to take off, land and fly around,” he said.
Wood says the design offers a new way to study flight mechanics and control at insect-scale. Yet, the power, sensing and computation technologies on board could have much broader applications. “You can start thinking about using them to answer open scientific questions, you know, to study biology in ways that would be difficult with the animals, but using these robots instead,” he said. “So there are a lot of technologies and open interesting scientific questions that are really what drives us on a day to day basis.”
1.The difficulty the team of engineers met with while making the robotic fly was that __________.
A. they had no model in their mind
B. they did not have sufficient time
C. they had no ready-made components
D. they could not assemble the components
2.It can be inferred from paragraphs 3 and 4 that the robotic fly __________.
A. consists of a flight device and a control system
B. can just fly in limited areas at the present time
C. can collect information from many sources
D. has been put into wide application
3.Which of the following can be learned from the passage?
A. The robotic flyer is designed to learn about insects.
B. Animals are not allowed in biological experiments.
C. There used to be few ways to study how insects fly.
D. Wood’s design can replace animals in some experiments.
4.Which of the following might be the best title of the passage?
A. Father of Robotic Fly
B. Inspiration from Engineering Science
C. Robotic Fly Imitates Real Life Insect
D. Harvard Breaks Through in Insect Study
高三英语阅读理解中等难度题查看答案及解析
Researchers at Cornell University are one step closer to building robots that are more like humans. This new method is one you might not expect. However, a soft robot muscle that "sweats" to regulate its temperature. "Sweating takes advantage of evaporated (蒸发)water loss to rapidly dissipate heat and can cool below the environmental temperature. So as is often the case, biology provided an excellent guide for us as engineers."
The fingerlike devices are 3D printed, water powered, and can be used to grab things. They are made of two soft chemical materials: a base layer of (CH3) 2 CH-C3H5 NO covered in a multihole layer of (C3H5 NO)n. When the fingers reach a temperature of 30°C (86°F), the base layer reacts by shrinking, squeezing the water through the top pores (毛孔)in the top layer. The drying up is so efficient that the surface temperature of the actuator can drop by 21°C in just 30 seconds. That's three times more efficient than in humans. When wind from a fan is thrown into the mix, they cool down around six times as fast. The evaporation also cooled the object held by the actuator hand.
"The best part of this artificial strategy is that the heat regulation is based on the material itself," said T. J. Wallin, co-lead author, a research scientist at Facebook Reality Labs. "We did not need to have sensors or other components to control the sweating rate. When the local temperature rose above the set point, the pores would simply open and close on their own. "
While the result is exciting, it is only a first step. The robot has its weaknesses. The sweat can make the robot hand slippery, so the team is examining textures to improve its grasp. When the sweating takes place, the robot's mobility is also blocked and needs to refill its water supply.
"I think that the future of making these more biologically similar materials and robots is going to rely on the material composition," said co-lead author Rob Shepherd, an associate professor of mechanical and engineering. "This brings up a point about the importance of research involving several different academic subjects or areas, where really no one group has all the answers. "
1.Which can best replace the underlined word "dissipate" in paragraph 1?
A.turn down B.put aside
C.drive away D.take in
2.What can control the heating performance of the robot?
A.Its artificial material. B.Its accurate sensor.
C.Its sensitive devices. D.Its working surroundings.
3.What does paragraph 4 mainly talk about?
A.The disadvantages of the robot.
B.The next step of the researchers.
C.The rules the robot has to follow.
D.The effect of the new development.
4.What can we infer from Shepherd's words?
A.The future of the robot is promising.
B.The similar materials are too difficult to develop.
C.Only working together can make the robot more successful.
D.The next step of his team is to search for suitable software.
高三英语阅读理解简单题查看答案及解析
Chinese researchers have developed a robot designed to help doctors treat the new coronavirus (新冠病毒) and other highly contagious diseases.
The robot can perform some of the same medical examination tasks as doctors. For example, the device can perform ultrasounds, collect fluid samples from a person's mouth and listen to sounds made by a patient’s organs. Cameras record the robot’s activities, which are controlled remotely so doctors can avoid coming in close contact with infected patients. Doctors and other medical workers can operate the machine from a nearby room, or from much farther away.
The robot's main designer is Zheng Gangtie, an engineer and professor at China’s Tsinghua University in Beijing. “Doctors are all very brave,” Zheng said. “But this virus is just too contagious…We can use robots to perform the most dangerous tasks.” Zheng said a friend of his, the head of Beijing’s Tsinghua Changgung Hospital, told him that one of the biggest problems in dealing with COVID-19 was that health care workers treating patients were getting infected themselves. Zheng said he wanted to do something to help this situation. So the engineer gathered a team and went to work on the robotic device. Zheng said the team was able to convert two robotic arms. The devices use the same technology that is used for space equipment, including moon explorers. The new robot is almost completely automated, Zheng said. It can even disinfect itself after performing actions involving patient contact. However, Zheng said he had heard from some doctors that it would be better not to build such robots to be fully automatic. This is because many patients still desire a personal presence to help calm them during treatment.
The team currently has two robots and both have been tested by doctors at hospitals in Beijing. One machine was taken to Wuhan’s Union Hospital, where doctors were being trained to use it. The plan is to use the robot to help treat coronavirus patients, along with assistance from nurses and other hospital workers.
Zheng would like to build more of the robots, but said money from the university has run out. About $72,000 has been spent on each robot. He said he does not plan to commercialize the design, but hopes that a company can begin that process.
1.What can we learn from Paragraph 2?
A.The robot can record doctors’ activities.
B.The robot can carry out actions automatically.
C.The robot can assist doctors to examine patients.
D.The robot can collect samples of patients’ organs.
2.The underlined word “disinfect” in Paragraph 3 is the closest in meaning to
A.affect B.clean
C.update D.fix
3.What can we infer about the robot according to Zheng Gangtie?
A.It is very costly to make.
B.It is highly recognized by doctors.
C.It can be purchased in the market soon.
D.It can also be used in moon exploration.
4.What is the main purpose of the text?
A.To introduce a new type of medical robot.
B.To provide guidance on treating COVID-19.
C.To describe the current condition of COVID-19.
D.To promote the commercialization of a new robot.
高三英语阅读理解中等难度题查看答案及解析
CORVALIJS. Ore.-- Engineers at Oregon Suite University have made a breakthrough in the performance of microbial (微生物的)fuel cells that can produce electricity directly from wastewater,opening the door to a future in which waste treatment plants not only will power themselves, but will sell extra electricity.
The new technology ,developed at OSU, can now produce 10 to 50 more times the electricity, per volume, than most oilier approaches using microbial fuel cells,and 100 times more electricity than some.
Researchers say this could eventually change the way that wastewater is treated all over the world, replacing the widely used “activated sludge (泥浆) ” process that has been in use for almost a century. The new approach would produce significant amounts of electricity while effectively cleaning the wastewater,
“If this technology works on a commercial scale the way we believe it will ,the treatment of wastewater could be a huge energy producer, not a huge energy cost.” said Hong Liu ,an associate professor in the OSU Department of Biological and Ecological Engineering. “This could have an impact around the world, save a great deal of money, provide better water treatment and promote energy sustainability.”
The biodegradable (能降解的)characteristics of wastewater, if developed to their full potential, could theoretically provide many times the energy that is now being used to process them, with no additional greenhouse emissions.
OSU researchers reported several years ago on the promise of this technology, but at that time the systems in use produced far less electrical power. With new concepts, the technology can now produce more than two kilowatts per cubic meter of liquid reactor volume.
The new system also works better than an alternative approach to creating electricity from wastewater, based on anacrobic (臭氧的)digestion that produces methane (甲烷).It treats the wastewater more effectively, and doesn’t have any of the environmental drawbacks of that technology, such as production of possible release of methane, a significant greenhouse gas.
1.Which of the following best expresses the main idea of the passage?
A.The treatment of wastewater is a huge energy cost.
B.Wastewater is being treated differently over the world.
C.Waste treatment plants have found a new way to power themselves.
D.Microbial fuel cells will produce more electricity from wastewater.
2.What can we learn about the new technology from the passage?
A.It can produce 100 times more electricity than any approach used today.
B.Through it more electricity can be created and water can be cleaned better.
C.It has already changed the way that wastewater is treated all over the world
D.It has opened the door to put microbial fuel cells to productive use.
3.What attitude does Professor Liu hold towards the new technology?
A. Supportive. B. Critical. C Unconcerned. D. Curious.
4.According to the last paragraph, why does the new system work better than the alternative approach?
A.Because it is co-friendly and treats wastewater more effectively.
B.Because it can make full use of anaerobic digestion producing methane.
C.Because it may produce less methane than the alternative approach.
D.Because it can produce 10 times the energy than the alternative approach.
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