2011年9月pets四级阅读理解每日一练(9.14)

来源:公共英语    发布时间:2013-02-01    公共英语辅导视频    评论

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2011年9月pets4阅读理解每日一练(9.14)

  1. According to the passage, static electricity can be caused by_______.
  [ A ] using home-made electrical goods
  [ B ] wearing clothes made of natural materials
  [ C ] walking, on artificial floor coverings
  [ D ] copying TV programs on a computer
  2. What effect does excessive positive ions have on some people?
  [ A ] They think they are mad.
  [ B ] They feel very tired.
  [ C ] They become violently sick.
  [ D ] They are too tired to do anything.
  3. By Observing the behavior of animals, scientists may be able to_______.
  [ A ] prevent disasters
  [ B ] organize groups of people
  [ C ] predict earthquakes
  [ D ] control areas of California
  4. A high negative ion count is likely to be found_______.
  [ A ] near a pond with a water pump
  [ B ] close to a slow-flowing river
  [ C ] high in some barren mountains
  [ D ] by a rotating water sprinkler
  5. People should be able to come to a decision about ions in the air if they_______.
  [ A ] note their own reactions
  [ B ] move to a healthier area
  [ C ] observe domestic animals
  [ D ] watch how wealthy people behave

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