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  3. Skip that third helping of roast beef, save the planet and do your heart a favor at the same time. That’s the advice of Alan

Skip that third helping of roast beef, save the planet and do your heart a favor at the same time. That’s the advice of Alan

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问题     Skip that third helping of roast beef, save the planet and do your heart a favor at the same time.
    That’s the advice of Alan Dangour of the London School of Hygiene and Tropical Medicine and colleagues who【C1】______the livestock industry’s potential to help the UK reduce its carbon emissions to half of 1990 levels by 2030, and the knock-on effect on the nation’s health.
    They found that the industry could reduce its emissions, but only if the livestock the UK produces, and the meat the nation【C2】______, drops by 30 per cent Farms must also optimise(最优化)their energy【C3】______by, for example, capturing carbon in animal waste.     The health pay-off would be【C4】______: 18,000 fewer people would die prematurely in the UK each year from heart attacks—a(n) 【C5】______of 17 per cent—as they would eat less of the fats found in meat.
    The effect would not be limited to rich nations. The team found that Brazil could【C6】______the same health benefits. "We’re not saying go vegetarian, we’re saying reduce how much livestock produce you consume," says Dangour. The savings could be【C7】______higher if reduced death rates from cancer and obesity had been included, he adds.
    Agronomist(农艺学家)Kenneth Cassman of the University of Nebraska warns that cutting production in one region can【C8】______it elsewhere, causing a rise in global emissions. "Reducing production of livestock products in a developed country like the UK does little to influence global【C9】______in production and consumption where most of the increase in demand between now and 2050 will come from【C10】______countries," he says.
A)developing E)developed I)boast M)reduction
B)even F)just J)achieve N)boost
C)trends G)considerable K)considerate O)efficiency
D)explored H)consumes L)offers
【C3】
选项
答案O
解析 此处应为名词。名词词库中最适合与optimise一词搭配的是efficiency，表示“优化效率”，且energy efficiency是常见固定搭配，表“能源效率”。下文提到的例子“从动物粪便中获取碳”也是与能源效率有关，故选efficiency。
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大学英语四级

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