高考考试

【单选题】
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) 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

网考网参考答案：C
网考网解析：
细节理解题。考生根据第二段最后一句 “The added difficulty with a project like this is that…可知事实上那些元件没有一件能现货供应的，要理解be off the shelf 的用法，所以选项C. they had no ready-made components就是对本句的同义替换，故为正确答案根据文章第一段Designed to do what a fly does naturally, the tiny machine is the size of a fat housefly.是有制作模型的，故排除A。根据文章第二段“It’s extremely important for us to think about …, ”the Harvard engineering professor who has been working ….可知选项B. they did not have sufficient time他们没有充足的时间，不合适；而选项D. they could no assemble the components他们不会组装元件是对原文的误解，并不是要组装，故排除选项D。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>