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英語(yǔ)四六級(jí)考試

2009年12月英語(yǔ)六級(jí)考試快速閱讀模擬題(4)

為提高廣大考生快速閱讀能力,考試吧精選了以下快速閱讀模擬題。

  Unit 4

  Part Ⅱ Reading Comprehension (Skimming and Scanning)

  (15 minutes)

  Directions: In this part, you will have 15 minutes to go over the passage quickly and answer the questions on Answer Sheet1.

  Seven way to Save the World

  Forget the old idea that conserving energy is a form of self-denial—riding bicycles, dimming the lights, and taking fewer showers. These days conservation is all about efficiency: getting the same—or better—results from just a fraction of the energy. When a slump in business travel forced Ulrich Ramer to cut costs at his family—owned hotel in Germany, he replaced hundreds of the hotel’s wasteful light bulbs, getting the same light for 80 percent less power. He bought a new water boiler with a digitally controlled pump, and wrapped insulation around the pipes. Spending about £100,000 on these and other improvements, he slashed his £90,000 fuel and power bill by £60,000. As a bonus, the hotel’s lower energy needs have reduced its annual carbon emissions by more than 200 metric tons. “For us, saving energy has been very, very profitable,” he says. “And most importantly, we’re not giving up a single comfort for our guests.”

  Efficiency is also a great way to lower carbon emissions and help slow global warming. But the best argument for efficiency is its cost—or, more precisely, its profitability. That’s because quickly growing energy demand requires immense investment in new supply, not to mention the drain of rising energy prices.

  No wonder efficiency has moved to the top of the political agenda. On Jan. 10, the European Union unveiled a plan to cut energy use across the continent by 20 percent by 2020. Last March, China imposed a 20 percent increase in energy efficiency by 2020. Even George W. Bush, the Texas oilman, is expected to talk about energy conservation in his State of the Union speech this week.

  The good news is that the world is full of proven, cheap ways to save energy. Here are the seven that could have the biggest impact.

  Insulate

  Space heating and cooling eats up 36 percent of all the world’s energy. There’s virtually no limit to how much of that can be saved, as prototype “zero-energy homes” in Switzerland and Germany have shown. There’s been a surge in new ways of keeping heat in and cold out (or vice versa). The most advanced insulation follows the law of increasing returns: if you add enough you can scale down or even eliminate heating and air-conditioning equipment, lowering costs even before you start saving on utility bills. Studies have shown that green workplaces (ones that don’t constantly need to have the heat or air-conditioner running) have higher worker productivity and lower sick rates.

  Change Bulbs

  Lighting eats up 20 percent of the world’s electricity, or the equivalent of roughly 600,000 tons of coal a day. Forty percent of that powers old-fashioned incandescent light bulbs—a 19th-century technology that wastes most of the power it consumes on unwanted heat.

  Compact fluorescent lamps, or CFLS, not only use 75 to 80 percent less electricity than incandescent bulbs to generate the same amount of light, but they also last 10 times longer. Phasing old bulbs out by 2030 would save the output of 650 power plants and avoid the release of 700 million tons of carbon into the atmosphere each year.

  相關(guān)推薦:名師指導(dǎo)全真試題經(jīng)典考點(diǎn) 備戰(zhàn)12月四六級(jí)
       2009年12月英語(yǔ)四級(jí)最后沖刺 如何利用最后時(shí)間
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