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六级冲刺备考的改错练习(9)

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六级冲刺备考的改错练习(9)

  第九篇: Error Correction   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(向心的)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 quiet fantastically but, with --80.   the rapid development of modern technology, who   knows about what the future holds?

  

  第九篇: Error Correction   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(向心的)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 quiet fantastically but, with --80.   the rapid development of modern technology, who   knows about what the future holds?

  

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