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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 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.”
72. 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 no assemble the components
73. 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
74. 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.
75. 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
查看习题详情和答案>>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)
【小题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 |
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 |
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. |
A.Father of Robotic Fly |
B.Inspiration from Engineering Science |
C.Robotic Fly Imitates Real Life Insect |
D.Harvard Breaks Through in Insect Study |
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
查看习题详情和答案>>
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.”
41. 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
42. 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
43. 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
44. 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.
45. 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
查看习题详情和答案>>
On a cold January morning in a Washington, DC Metro Station, a man with a violin played for about an hour.During that time about 2,000 people went through the station, most of them on their way to work.
After 3 minutes a middle-aged man noticed there was a musician playing.He stopped for a few seconds and then hurried on.Four minutes later the violinist received his first dollar: a woman threw the money in the hat without stopping and continued to walk.After 6 minutes, a young man leaned against the wall to listen to him, then looked at his watch and walked away.After 10 minutes, a 3-year-old boy stopped but his mother dragged him along hurriedly.This action was repeated by several other children.Every parent, without exception, forced their children to move on quickly.
Finally only 6 people stopped and listened for a short while.About 20 gave money, but continued to walk at their normal pace.The man collected a total of $ 32.When he finished playing, no one applauded.
The violinist was Joshua Bell, one of the greatest musicians in the world.He played one of the most intricate (复杂的) pieces ever written, with a violin worth $ 3.5 million dollars.Two days before, Joshua Bell sold out a theatre in Boston where the seats averaged $ 100 each.
The program was organized by the Washington Post as part of a social experiment about understanding, taste, and people’s social position.In a common place environment, at an inappropriate hour, do we appreciate beauty? Do we stop to appreciate it? Do we recognize talent in an unexpected context?
If we do not take a moment to stop and listen to one of the best musicians in the world, playing some of the finest music ever written, how many other things are we missing?
1.The first paragraph is aimed to tell us ______.
A.the man chose a bad place for playing
B.what background the story was set in
C.how busy people were that morning
D.many people showed interest in music
2.We can infer from the passage that ______.
A.none of the passers-by were fond of music
B.beauty can only be enjoyed in particular places
C.in a way, the violinist was mistaken as a beggar
D.Joshua Bell first played the violin in the station
3.According to the writer, people should _____.
A.listen to as many great musicians as possible
B.try to create beautiful things for others to enjoy
C.show kindness to anyone whether they’re rich or not
D.notice and appreciate what’s going on in their daily life
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