This passage mainly talks about ______.

试卷相关题目

• 1Which of the following is NOT the result of the ocean absorbing heat and carbon dioxide、

  A.It causes further acidification.

  B.It affects shell-forming species.

  C.It makes the atmosphere hotter.

  D.It regulates the Earth’s climat

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• 2From the passage we can learn that the ocean’s currents _____.

  A.produce oxygen and nutrients everywhere

  B.absorb 25~50% of the energy from the sun

  C.distribute heat and nutrients around

  D.change the ocean’s circulation patterns

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• 3We can infer from the passage that _____.

  A.the oceans cause global warming

  B.the oceans stop global warming

  C.the oceans release nutrients and heat

  D.the ocean ecosystems face more dangers

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• 4We can conclude from this passage that        .

  A.because of jogging, heart disease is no longer an American problem

  B.jogging can be harmful if the runner is not properly prepared

  C.warm–up suits are better than T-shirts for jogging

  D.jogging is bad for your heart and lungs

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• 5The most useful kind of exercise is exercise that        .

  A.trains the body for weight lifting

  B.enables a person to run ahead with great power

  C.is both beneficial and inexpensive

  D.develops the heart, lungs, and circulatory systems

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