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2006年北京市中考英语试卷(课标卷)(C) 时间______正确率_______ As we know, it is not easy to build a satellite. Building a traditionalsatellite normally takes years. The costs can he as high as $250 million ormore. Most members of the design teams have worked in the field for a long time.They hold advanced degrees in math, science, or engineering. But things are changing. High costs, unusual educational requirements andlong start-up times are no longer an obstacle to space exploration. Thescientists at Stanford University have developed a new type of tiny, inexpensiveearth-orbiting satellites that go from ideas to launch(发射)in a year. So far, college students have built and launched several cabe-shapedsatellites, or CubeSats. At least 15 more are ready to go. Those already inorbit(轨道)take pictures, collect information and send it back to the earth, justas regular satellites do. But you might not even have to wait until you get to college to startdesigning and building your own satellite. A new program called KatySat aims toget teenagers to take part. Once kids understand what satellites can do, saysBen Yuan, an engineer at Lockheed Martin in Menlo Park, Calif., the kinds ofapplications theyll come up with may be countless. Wed like to put this technology(技术)in your hands,he tells kids. Weregoing to teach you how to operate a satellite. Then we want to turn it over toyou as a sandbox for you to play in. We want you to take the technology into newdirections that we havent thought of yet. | 
