What are the reasons for the ice melting according to the scientists、

试卷相关题目

• 1What is the ice cover in the Arctic by the end of 2007 summer、

  A.4．2 million square kilometers

  B.11．4 million square kilometers

  C.1．13 million square kilometers

  D.38 million square kilometers

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• 2Which of the following is closest in meaning to the word"build"in the first sentence of the second paragraph、

  A.construct

  B.extend

  C.create

  D.expand

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• 3A major earthquake striking San Francisco someday is inevitable．

  A.right

  B.wrong

  C.not mentiond

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• 4Scientists will be able to predict the exact time of an earthquake soon．

  A.right

  B.wrong

  C.not mentioned

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• 5San Francisco is fully prepared for another big earthquake．

  A.right

  B.wrong

  C.not mentioned

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• 6Why is the ice melting from both above and below、

  A.Because extra heat warms the air．

  B.Because extra heat warms the water．

  C.Because the temperature above the water is higher．

  D.Rnth A and B．

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• 7What can be a possible title for the passage、

  A.What are scientists looking for in the Arctic Ocean、

  B.What are scientists doing in the Arctic Ocean、

  C.Why are scientists worrying about the Arctic Ocean、

  D.Why are scientists interested in the Arctic Ocean、

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• 8Ecologists turn to non-scientist citizens for help because they need them__________________．

  A.to provide their personal life cycles

  B.to observe the life cycle of plants

  C.to collect data of the life cycle of living things

  D.to teach children knowledge about climate change

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• 9What are citizen scientists asked to do、

  A.To develop a specific research interest and become professional scientists．

  B.To send their research observations to a professional database．

  C.To increase their knowledge about climate change．

  D.To keep a record of their research observations．

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• 10In"All that，s needed to become one…(paragraph2)"，what does the word"one"stands for、

  A.a citizen journalist

  B.a citizen scientist

  C.a scientist

  D.a citizen

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