2014年高考英语二轮复习阅读理解拉分题（较难题目）特训：科普知识类
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FILTON, just outside Bristol, is where Britain’s fleet of Concorde supersonic（超音速的）airliners was built. There, something remarkable is being created. Little by little a machine is “printing” a complex titanium bracket (钛合金支架), about the size of a shoe, which normally would have to be cut from a solid block of metal. Brackets are only the beginning. The researchers at Filton have a much bigger ambition: to print the entire wing of an airliner.
Unrealistic as this may seem, many other people are using 3D printing technology to create similarly remarkable things. These include medical implants, jewellery, football boots designed for individual feet, lampshades, racing-car parts, solid-state batteries and customized mobile phones. Some are even making mechanical devices (仪器). At the Massachusetts Institute of Technology (MIT), Peter Schmitt, a PhD student, has been printing something that is like the workings of a grandfather clock. It took him a few attempts to get right, but eventually
