2. 外语
  3. A. assisting B. estimates C. shut off D. manufacturers E. orally F. invisible G. sightless H. sellers I. families J. ascerta

A. assisting B. estimates C. shut off D. manufacturers E. orally F. invisible G. sightless H. sellers I. families J. ascerta

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问题     A. assisting B. estimates C. shut off D. manufacturers E. orally
    F. invisible G. sightless H. sellers I. families J. ascertain
    K. printed L. confirms M. shut down N. improved O. before
    Although there are many skillful Braille(盲文)readers, thousands of other blind people find it difficult to learn that system. They are thereby【C1】______ from the world of books and newspapers, having to rely on friends to read aloud to them.
    A young scientist named Raymond Kurzweil has now designed a computer which is a major breakthrough in providing aid to the【C2】____. His machine, Cyclops, has a camera that scans any page, interprets the print into sounds, and then delivers them【C3】______ in a robot-like voice through a speaker. By pressing the appropriate buttons on Cyclops’s keyboard, a blind person can "read" any【C4】______ document in the English language.
    This remarkable invention represents a tremendous stride forward in the education of the handicapped. At present, Cyclops costs $50,000. However, Mr. Kurzweil and his associates are preparing a smaller but【C5】______ version that will sell for less than half that price. Within a few years, Kurzweil【C6】______ the price range will be low enough for every school and library to own one. Michael Hingson, Director of the National Federation for the Blind, hopes that【C7】______ will be able to buy home models of Cyclops for the price of a good television set.
    Mr. Hingson’s organization purchased five machines and is now testing them in Maryland, Colorado, Iowa, California, and New York. Blind people have been【C8】______ in those tests, making lots of valuable suggestions to the engineers who helped to produce Cyclops.
    "This is the first time that blind people have ever done individual studies【C9】______ a product was put on the market," Hingson said. Most manufacturers believed that having the blind help the blind was like telling disabled people to teach other disabled people. In that sense, the【C10】______ have been the blind ones.
【C4】
选项
答案K
解析 空格应填入形容词修饰document。根据上一句Cyclops的工作原理，可知Cyclops是将印刷文本转化为声音，因此推断此处表示盲人可以阅读印刷出来的或书面的文件，printed“印刷的”符合要求。
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