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2013英语四六级备考:改错练习题(8)

2013-03-29 09:29新东方四六级微信号

  第八篇: Error Correction (15 minutes)

  Some people, in all seriousness, say that

  humans will be living in space within the next

  hundred or so years. Planet Earth will be crowded,

  dirty and lack of resources. A sort of exodus --71.

  of mankind will begin.

  Spaceships will be assembled so that they

  revolve around the earth. Some may orbit around

  Mars. These space stations will be serviced by

  space buses. We saw the first space bus launch in --72.

  April 1981. This was "Columbia", it made several --73.

  orbits around the earth and then returned, landing

  on a huge dry lake bed in California. "Columbia"

  will be used again. Previous spaceships have

  been abandoned, only the nose cone being used

  to bring the crews back to earth. --74.

  Upon established, each space station will --75.

  generate its own atmosphere and have its own

  agriculture. It will need to rotation to provide --76.

  an artificial gravity; people will be forced inwards --77.

  from the center by centrifugal force.

  The moon and Mars could become new sources of

  new materials. Driving through space will no --78.

  longer need Earth fuel- the energy would come

  from the sun. This energy would be converted from --79.

  electricity to work magnetic rockets.

  That all sounds quite fantastically but, with --80.

  the rapid development of moderns technology, who

  knows about what the future holds?

  答案:71. lack--short

  72. launch--launched

  73. it--which

  74. crews--crew

  75. upon--once

  76. rotation--rotate

  77. inwards-outwards

  78. will--would

  79. from--into

  80. fantastically--fantastic

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