The author states that______.

试卷相关题目

• 1All of the following cause floods EXCEPT______.

  A.heavy rain

  B.melting snow

  C.increasing storm runoff

  D.porous soil

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• 2The best title for the selection would be______.

  A.River Rising! River Rising!

  B.Forests and Floods

  C.Flooding in the U. S.

  D.The Results of Flooding

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• 3For as long as three months of a year, the sun _________on the ice-covered land of Alask

  A.A.

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• 4Genera has increased the number of its employees recently.

  A.Right

  B.Wrong

  C.Not mentioned

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• 5The British government is helping Dr Parton to sell the tests abroad.

  A.Right

  B.Wrong

  C.Not mentioned

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• 6According to the selection, streams overtop their banks partly because______.

  A.material from higher land is washed into them

  B.ditches and drains lead into them

  C.rivers become too swift

  D.snow melts more rapidly nowadays

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• 7The floods which are given most publicity______.

  A.cause no damage

  B.cause the most damage

  C.cause less agricultural damage than the many smaller, more frequent floods

  D.far exceed the smaller, more frequent floods in agricultural loss

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• 8According to Leszczynski, how does mobile phone affect one's health、 _________

  A.Mobile phone radiation can increase protein activities and such activities can make the protective shield more permeable.

  B.Mobile phone radiation can shrink the blood vessels and prevent blood from flowing smoothly.

  C.Mobile phone radiation will bring stress to people exposed to it.

  D.Mobile phone radiation kills blood cells at a rapid speed.

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• 9What's the result of the French study、 _________

  A.The harm of mobile phone radiation is life-threatening.

  B.Mobile phone may affect one's normal way of thinking.

  C.Sleep disorders could result from mobile phone radiation.

  D.A protein called hsp27 is killed by mobile phone radiation.

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• 10What kind of disease is not caused by the use of mobile phone、 _________

  A.Fatigue.

  B.Headache.

  C.Alzheimer's disease.

  D.Tuberculosis.

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