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阅读下面短文,在空格处填入一个适当的词或使用括号中词语的正确形式填空,并将答案填写在答卷相应位置上。 In science fiction, space is often described as

英语试题 08-24
语法填空(共10小题,每小题1.5分,满分15分)
阅读下面短文,在空格处填入一个适当的词或使用括号中词语的正确形式填空,并将答案填写在答卷相应位置上。
  In science fiction, space is often described as a silent, empty place but things are different.   41   reality, all of the equipment   42   (use) to keep a space station functioning can be so noisy   43    the astronauts working there cannot communicate with one another    44   (easy) — they have to shout. The high levels of sound may affect their work, and can sometimes even mean that they are ___45___(able) to sleep. In addition, they must face other problems in space. Scientists have identified (确认)over 70,000 items of rubbish left by former astronauts ___46___still remain in orbit (轨道)around the earth. Most of them are ___47____(small) than a tennis ball, but they still threaten the ___48_____(safe) of exploring in space. Even a small piece of metal could cause a terrible disaster if it hit a manned spacecraft. Although generally astronauts do make an effort ___49_____(bring) most of their rubbish home, they don’t always manage it. And they don’t just leave their rubbish ____50____(float) in space either. There is even a broken camera among the litter left behind on the moon.

答案
   41. In.   42. used  43. that  44. easily      45. unable    
 46. that / which   47. smaller   48. safety 49. to bring   50.  floating
 
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