What can be inferred from the last two paragraphs about the world’s temperature、

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• 1Scientists pay special attention to the study of plants because _______.

  A.they can prove the climate change clearly

  B.they are very important in the food chains

  C.they play a leading role in reducing global warming

  D.they are growing and flowering much faster than before

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• 2We can learn from the study published on the Nature website that ______.

  A.plants’ flowering is 8.5 times faster than leafing

  B.there are 1,634 plant species on the four continents

  C.scientists should improve the design of the experiments

  D.the experiments failed to predict how plants react to climate change

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• 3What is the key information the author wants to give in Paragraph 1、

  A.Plants’ reaction to weather could have damaging effects on ecosystem.

  B.The increasing speed of flowering is beyond scientists’ expectation.

  C.Climate change leads to the change of food production patterns.

  D.Food chains have been seriously damaged because of weather.

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• 4What can be said about MITx according to the text、

  A.It is first offered as part of the edX learning program.

  B.It is another free MIT-Harvard online learning program.

  C.It is a standard to recognize online learners’ achievement.

  D.It is a new kind of free online course of Harvard and MIT.

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• 5The underlined part in the text probably means “        ”.

  A.Get ready for the difficulties

  B.Get ready for this educational change

  C.Get prepared to complete the online courses

  D.Get prepared to make materials for the edX courses

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