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2010年职称英语基础辅导(补全短文)每日一练(B级)

论文作者:佚名论文属性:短文 essay登出时间:2009-09-15编辑:lisa点击率:4131

论文字数:500论文编号:org200909151423121766语种:中文 Chinese地区:中国价格:免费论文

关键词:职称英语基础辅导补全短文每日一练(B级)

第1部分:补全短文(第46~50题,每题2分,共10分)
  阅读下面的短文,文章中有5处空白,文章后面有6组文字,请根据文章的内容选择5组文字,将其分别放回文章原有位置,以恢复文章原貌。请将答案涂在答题卡相应的位置上。

Should the U.S. halt human apace flight?

  The Columbia accident has revived the debate on whether the rewards of human space exploration are worth the risks No. I was a teacher when men first landed on the moon in 1969, and I remember how it moved my students and this country.    (46) And we haven't ventured outward since then. That's 30 years too long! America's human space-flight program is adrift, with no clear vision or goals beyond the completion of the International Space Station.
  I want NASA to establish a phased series of goals over the next 20 years, including human visits to asteroids that cross the Earth's orbit, establishing a research and living facility for humans on the moon, and human expeditions to the surface of Mars and its moons.    (47)
  An astronaut is today's Christopher Columbus, who sailed into the unknown and discovered the Americas. The knowledge we gain from having actual people exploring can never be replaced by robots.    (48) Robots are useful, but humans can do things that robots can't.
  The real obstacle we face in overcoming the drift in the nation's human space-flight program is not technological and it's not financial.     (49)
  The lesson from the Columbia accident is not that humans don't belong in space.    (50)
 
  A Instead, we should honor the memory of the lost astronauts by pushing our exploration of space future.
  B Astronauts are key to this expanded exploration.
  C It's the lack of commitment to get started.
  D Until then, we should stop risking people's lives by sending them into space.
  E It is now more than 30 years since the last American left the surface of the moon and returned to Earth.
  F Our ability to send humans into space and have them return gives us amazing information about ourselves and our universe.论文英语论文网提供整理,提供论文代写英语论文代写代写论文代写英语论文代写留学生论文代写英文论文留学生论文代写相关核心关键词搜索。

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