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  3. If you are trying to do your bit for sustainability and save water by taking shorter showers, then a new report on sustainabilit

If you are trying to do your bit for sustainability and save water by taking shorter showers, then a new report on sustainabilit

admin2013-10-17  102
问题     If you are trying to do your bit for sustainability and save water by taking shorter showers, then a new report on sustainability reveals for the first time that there are more effective ways that our everyday choices can have a positive impact on the environment.
    For example, the glass of juice you have for breakfast might have used the same amount of water m its production as the amount you have just saved by cutting your shower from 10 to 5 minutes. The milk on your cereal might have used even more.
    Balancing Act, a world first that has been developed for the Australia economy by scientists from CSIRO(澳大利亚联邦科学与工业研究组织)and the University of Sydney, looks across 135 industry sectors of the Australian economy and quantifies the impacts and contributions across ten social, environmental, and financial indicators.
    Report co-author CSIRO scientist, Barney Foran, says that sustainability for Australia is a balancing act as we try to make decisions and trade-offs in the face of often-competing economic, social and environmental attributes.
    "We still need to eat and shower—and it is still worth taking shorter showers to save our stressed urban water supplies—but now consumers have a new tool to help us make more informed choices about different types of products based on a new sustainability rating," says Foran.
    Different to other studies because of its detailed observation of the full production chain, this report is able to show the full effects—both direct and indirect—of the production of an individual commodity or service, cappuccinos(卡布奇诺咖啡)or haircuts. It highlights sustainability challenges for different industries and points out areas in the production chain where a focused effort would make a significant difference.
    All effects are referenced back to a consumption dollar—roughly the dollar spent by a consumer in everyday life. It also shows that each consumption dollar is quite different—some dollars are positive and create employment, or suck in imports or generate government revenue. Other consumption dollars are less positive through their high use of water or production of greenhouse gas emissions.
    This relatively simple presentation of highly complex issues makes this a powerful tool for people who are interested in sustainability to move beyond decisions based on dollars and cents and enables them to make decisions based on a contribution to society, environment, and economy.
By using "a consumption dollar" , the report authors______.
选项 A、help people make decisions based on dollars and cents
B、simplify the complex issue of greenhouse gas emissions
C、discuss economy’s contribution to society and environment
D、show different impacts and contributions of our daily consumption
答案D
解析 语义理解题。本题考查对“a consumption dollar”这一概念的理解。定位句提到，一个消费元大致等于一个消费者日常生活所花费的钱，而每个消费元的影响是大不一样的。由此可推断，消费元代表的其实是我们的日常消费，而通过这一概念，报告的作者们是想告诉大家我们的日常消费会产生不同的影响和做出不同的贡献，故答案为D)。由此可排除A)“帮助人们根据金钱做出决定”、B)“简化了温室气体排放这一复杂问题”和C)“讨论了经济对社会和环境的贡献”。
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