题目内容

Mary _________be late, so don’t wait for her


  1. A.
    would
  2. B.
    can
  3. C.
    should
  4. D.
    may
D
考查情态动词。句意“玛丽可能会迟到，因此不要等她了。”would表示意愿；can表示的可能性比较大；should“应该”；may“也许”。故选D。
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For more than a century, since he captured the spoken words "Mary had a little lamb" on a sheet of tinfoil (锡纸), Thomas Edison has been considered the father of recorded sound. But researchers say they have discovered a recording of the human voice which is nearly two ___1.___earlier than Edison's invention of the phonograph.

The 10-second recording of a singer crooning (轻声歌唱)  the folk song  "Au Clair de la Lune"  was discovered earlier this month in an   ___2.___ in Paris by a group of American audio historians. It was made, the researchers say, on April 9, 1860, on a phonautograph, a machine designed to record sounds ___3.___, not to play them back. But the phonautograph recording, or phonautogram, was made playable---converted from squiggles (潦草的字迹) on paper to sound---by scientists at the Lawrence Berkeley National Laboratory in Berkeley, Calif.

"This is a  ___4.___find, the earliest known recording of sound," said Samuel Brylawski, the former head of the recorded-sound division of the Library of Congress, who is not ___5.___with the research group but who was familiar with its findings. The audio discovery could give new   ___6.___ to the phonautograph, and its inventor, Edouard-Leon Scott de Martinville,  a Parisian typesetter who went to his grave   ___7.___that credit for his breakthroughs had been ___8.___bestowed on Edison.

The recordings made by Scott were not intended for listening; the idea of audio  ___9.__ had not been conceived.  Rather, Scott sought to create a paper record of human speech that could later be___10.___.

 

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