What does the underlined word “this” refer to、

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• 1While knowledge from the past plays an important role in their achievements, thinkers sometimes also depend on their______.

  A.artistic tastes

  B.sudden insight

  C.admiration of discoveries

  D.scientific experiments

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• 2Newton, Kepler and Einstein are mentioned in the first paragraph to_______.

  A.bring about the subject of the discussion

  B.explain that scientists are more creative

  C.show the difference between science and arts

  D.prove that arts require more personal efforts

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• 3What would be the best title for the passage、

  A.Research over the Antarctic area.

  B.Warm period to last about 15, 000 years.

  C.Report on the eight ice ages in the past.

  D.Hollywood movies and the global climat

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• 4We can infer from Eric Wolff's words that_______.

  A.there is something wrong with the data

  B.greenhouse effect is always a bad thing

  C.a new ice age will not come in the near future

  D.greenhouse gas will get thick in the future

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• 5The information of the global climate conditions in the past can be obtained through______.

  A.separating carbon dioxide from the air

  B.examining the growth rings of trees

  C.comparing temperatures in different areas

  D.studying the ice and air caught in each layer

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• 6We may conclude from the passage that ______.

  A.it is more likely to make scientific and artistic discoveries in everyday learning.

  B.a sudden insight and knowledge from the past are required in making discoveries

  C.scientific discoveries or artistic creations are usually unpredictable in nature

  D.knowledge of the rules in the past is often developed in the changes of situation

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• 7What color might the man's shirt be、

  A.White.

  B.Brown.

  C.Orange.

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• 8What prevented the man from hearing properly、

  A.Trouble with his ears.

  B.Trouble with the manager.

  C.Trouble with the sound system.

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• 9What does the man usually do on Saturday、

  A.Paint pictures.

  B.Have a rest.

  C.Work at home.

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• 10What happened to the man、

  A.He took the wrong bus.

  B.He missed his bus stop.

  C.He didn’t catch the bus.

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