文章大意:本文为说明文。文章介绍了哈佛大学团队创造了第一只机器人苍蝇。机械苍蝇已成为一系列新的高科技集成系统的平台,它可以做自然苍蝇做的事情,还可以在空中并执行飞行任务。但最终目标是为它配备内置电源,以便它有朝一日可以在救援地点、农田或战场上进行数据收集工作。
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 fly 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.”
8. 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. |
9. What do we know about the robotic fly?
A.The robotic fly has been put into wide application. |
B.The robotic fly consists of a flight device and a control system. |
C.The robotic fly can collect information from many sources. |
D.The robotic fly can fly well with the cooperation of individual components. |
10. Which of the following can be learned from the passage?
A.The robotic fly can replace animals in some experiments. |
B.Animals are not allowed in biological experiments. |
C.The robotic fly is designed to learn about insects. |
D.There used to be few ways to study how insects fly. |
11. What is the main idea 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. |