六级2012考试试题.docVIP

2012年六级辅导课期末考试 格式要求： 请用A4规格 纸作答并提交，不接受电子版和打印版； 每道题请写好 题号，按顺序作答； 先作答阅读再作答作文，并于6月20日前交各班班长，由各班班长统一交给任课老师 整张纸卷请同学认真按照60分钟时间作答，不能超时 将姓名和学号及班级专业写在整张答题纸上方，否则任课老师无法确实，则后果自负，谢谢大家配合。 Passage One Questions 1 to 5 are based on the following passage: A new high-performance contact lens under development at the department for applied physics at the University of Heidelberg will not only correct ordinary vision defects but will enhance normal night vision as much as five times, making people’s vision sharper than that of cats. Bille and his team work with an optical instrument called an active mirror — a device used in astronomical telescopes to spot newly emerging stars and far distant galaxies. Connected to a wave-front sensor that tracks and measures the course of a laser beam into the eye and back, the aluminum mirror detects the deficiencies of the cornea, the transparent protective layer covering the lens of the human eye. They highly precise data from the two instruments — which, Bille hopes, will one day be found at the opticians (眼镜商) all over the world — serve as a basis for the production of completely individualized contact lenses that correct and enhance the wearer’s vision. By day, Bille’s contact lenses will focus rays of light so accurately on the retina (视网膜) that the image of a small leaf or the outline of a far distant tree will be formed with a sharpness that surpasses that of conventional vision aids by almost half a diopter (屈光度). At night, the lenses have an even greater potential. “Because the new lens — in contrast to the already existing ones — also works when it’s dark and the pupil is wide open,” says Bille, “lens wearers will be able to identify a face at distance of 100 meters — 80 meters farther than they would normally be able to see. In his experiments night vision was enhanced by an even greater factor: in semi-darkness, test subjects could see up to 15 times better than without the lenses. Bille’s lenses are expected to reach the market