When at work, Margaret feels _____.

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• 1Margaret gets angry with people who work in the office because _____.

  A.they never clean their offices

  B.they look down upon cleaners

  C.they never do their work carefully

  D.they always make a mess in their offices

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• 2Margaret gave up her job as a nurse because ______.

  A.she wanted to earn more money to support her family

  B.she had suffered a lot of mental pressure

  C.she needed the right time to look after her children

  D.she felt tired of taking care of patients

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• 3The best title for this passage should be____________  、

  A.Soil From Rocks

  B.Ways to Break up Rocks

  C.Soil on the Earth

  D.Soil, Outmost Layer of the Earth

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• 4Which of the following is NOT true、

  A.The remains of many plants and animals formed soil.

  B.If a large rock never moves, it will never break up.

  C.Even if a large rock never moves, it will break up.

  D.Ice in the cracks helps to break up rocks.

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• 5Which of the follwing speeds up（加速） the breaks of rocks most、

  A.Hot weather.________________________

  B.Cold water.

  C.Sharp changes in temperature.

  D.More dead plants in the cracks.

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• 6The underlined part in the last paragraph implies(暗示) that Margaret’s parents would ____.

  A.help care for her children

  B.regret what they had said

  C.show sympathy for her

  D.feel disappointed in her

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• 7What’s the best title of the passage、

  A.Oklahoma teen comes to a great invention

  B.Science competition for high school students

  C.The 2007 Intel Science Talent Search

  D.Oklahoma teen wins science scholarship

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• 8_____ is the biggest difference between Mary’s spectrograph and the normal one、

  A.Use fields

  B.Function

  C.The cost

  D.The size

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• 9How long did it take Mary to put his spectrograph into use、

  A.Three months.

  B.Half a year.

  C.About a year.

  D.Several years.

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• 10It can be inferred that the Intel Science Talent Search is _____.

  A.a high-tech research institute of fine instruments

  B.an institute of science based in Washington,

  C.a most highly regarded science competition for high school students

  D.the nation's oldest award for the top scientists with great achievements

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