How much of the power consumed by incandescent bulbs is converted into light、

试卷相关题目

• 1If you add enough insulation to your house, you may be able to________.

  A.improve your work environment

  B.cut your utility bills by half

  C.get rid of air-conditioners

  D.enjoy much better health

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• 2What does the European Union plan to do、

  A.Diversify energy supply.

  B.Cut energy consumption.

  C.Reduce carbon emissions.

  D.Raise production efficiency.

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• 3What is said to be the best way to conserve energy nowadays、

  A.Raising efficiency.

  B.Cutting unnecessary costs.

  C.Finding alternative resources.

  D.Sacrificing some personal comforts.

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• 4Some countries have tried to jump-start the market of heat pumps by________.

  A.upgrading the equipment

  B.encouraging investments

  C.implementing high-tech

  D.providing subsidies

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• 5German chemicals giant BASF saves 200 million a year by________.

  A.recycling heat and energy

  B.setting up factories in China

  C.using the newest technology

  D.reducing the CO2 emissions of its plants

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• 6Global residential power consumption can be cut by 43 percent if________.

  A.we increase the insulation of walls and water pipes

  B.we choose simpler models of electrical appliances

  C.we cut down on the use of refrigerators and other white goods

  D.we choose the most efficient models of refigerators and other white goods

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• 7Questions 19 to 22 are based on the conversation you have just heard.

  A.In a studio.

  B.In a clothing store.

  C.At a beach resort.

  D.At a fashion show.

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• 8Questions 23 to 25 are based on the conversation you have just heard.

  A.It helps her to attract more public attention.

  B.It improves her chance of getting promoted.

  C.It strengthens her relationship with students.

  D.It enables her to understand people better.

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