Green Paper Even in this electronic era, paper continues to play a complete role in our daily lives. Americans depend on abo

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问题                             Green Paper
    Even in this electronic era, paper continues to play a complete role in our daily lives. Americans depend on about 85 million tons of paper and paperboard a year to help us clean, organize, advertise, educate and much more, according to the Environmental Protection Agency.
    Unfortunately, this soft product comes with environmental disadvantages. These include the loss of biological variety associated with permanent forest; an energy and water intensive production process that generates greenhouse gases and other dangerous products; and a life cycle that ends in a landfill or incinerator nearly half the time.
    Of course, we have choices. We can lessen paper’s environmental blow first and foremost by reducing our dependence (using cloth towels in the kitchen, printing on both sides of the sheet at the office, etc.). And, when we really need to use paper, we can make better-educated buying decisions. Here are a few tips for purchasing eco-friendly paper:
    Buy recycled. Doing so saves landfill space, supports green jobs and " reduces the total amount of resources you’re using", says Susan Kinchella, executive director of Conse-rvatree, an organization that advocates using more paper which can be used again.     Study labeling carefully. Look for products that contain post-consumer waste (or material that has completed a full life cycle); the higher the percentage, the better. A chasing-arrows symbol may simply mean a paper product can be recycled, while the word" recycled may refer to only a small percentage of recovered fibers.
    Demand certificate. A number of organizations certify that the original fiber used in a given paper comes from responsibly managed forests. Kinsella says the one environmentalists trust most is the Forest Stewardship Council. Check with your printer or paper supplier to see whether it carries FSC-certified lines.
    Consider tree-free options. Some paper is now made from agricultural crops, several of which have a higher yield per acre than some types of trees used in papermaking and may have other benefits. Tree-free material is available for personal use (think cards and invites), but before buying, investigate its origins and the farming practices used. For a list of suppliers, check out http://www, con-servatree. org/tree free. html.
    Check color. Paper which is made whiter without the use of CI or other chemicals is less polluting. Using paper without CI is another step up. And when using a professional printer, ask for vegetable-based inks.
What is the main topic of this passage?

选项 A、The reasons for buying green paper and some approaches.
B、The reason why we should buy green paper.
C、Some tips to buy the so-called green paper.
D、Some facts about the so-called green paper.

答案A

解析 主旨大意题。通观全文可知,作者在前两段阐述了当今社会中纸制品的消费对自然资源的破坏,提出应保护环境。后面的文章都在写如何购买和使用纸张才能保护环境。因此[A]“购买绿色纸张的原因以及如何购买”是对全文最好的概括,故为答案。[B]“我们购买绿色纸张的原因”只是文章内容的一部分,不全面,故排除;[C]“关于购买所谓的绿色纸张的一些建议”,也只是对文章一部分内容的概括,故排除;[D]“关于所谓的绿色纸张的一些事实”,概括太过笼统,故排除。
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