2. 外语
  3. A. assisting B. estimates C. shut off D. manufacturers E. orally F. invisible G. sightles

A. assisting B. estimates C. shut off D. manufacturers E. orally F. invisible G. sightles

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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.
【C9】
选项
答案O
解析 空格前后的句子结构完整，故推断空格处填入连词连接句子。盲人是在新机器的测试中“有帮助的”，测试和研究应该是在新产品上市前(before)进行的，故选O。
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