Spending 50 minutes with a cell phone close to your ear is enough to change brain cell activity in the part of the brain closest to the antenna(天线) . But whether that causes any harm is not clear, scientists at the National Institute of Health said a

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• 1According to the passage, cell phones were launched _______。

  A、in the late 1970s B. between 1980 and 1985

  C、in the late 1980s D. in the early 1990s

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• 2 What does the word “that” stand for in the second paragraph?

   

  A. Brain activity。

  B. Her research findings。

  C、The fact that cell phone use may cause cancer。

  D.、Her research progress。

  
  

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• 3 According to the passage, which of the following statement is TRUE?

  A. Humans have begun to engage in the multitasking behaviors since the information age。

  B. Multitasking is a critical skill that students are required to learn at school。

  C. Only parents can help their kids to get rid of the multitasking habits。

  D. multitasking may prepare students for the reality of today’s fast-paces work environment。

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• 4Which of the following is an appropriate title for this passage?

  A. Japan’s Nuclear Crisis Causes Fear in Europe。

  B. The Chernobyl Disaster Helps Europe Better Understand Nuclear Power Energy。

  C. German Governments Supports Nuclear Power Energy。

  D. Germany Has Learnt a Lesson From Japan。

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• 5You have failed toew tests. You’d better start working harder, ____you won’t pass the course。

  A. and B. but C. or D. so

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• 6Professor Wilson keeps telling his students that the future ______ to the well-educated。

  A. is belonged B. is belonging C. belongs D. will be belonged

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• 7Just take it easy and us exactly what has happened。

  A. say B. speak C. tell D. talk

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• 8The weather forecast says it is going to clear soon。

  A. up B. out C. over D. about

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• 9 When I mention the problem, I'm not ______ all of you.

  A. talking about

  B. referring to

  C. listening to

  D. carrying out

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• 10 “I usually sleep with the windows closed at night, even in summer.” “You can never be ____ caref

  A. very

  B. much

  C. too

  D. so

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