大学体验英语三册答案预热课文翻译课后翻译.docVIP

Unit 1 Caring for Our Earth Lead-in Global warming may be the most harmful environmental problem 1) human beings have created, and the most difficult to solve. Our society is largely 2) powered by the fossil fuels that cause global warming. Its growing consequences ― ecological disruption, floods, droughts, disease ― are convincing more and more people that we must cut down 3) greenhouse pollution. Many people view global warming as a problem too large and too 4) far away for anything they can do to 5) make a difference . However, in reality, there are lots of things we can do to stop, or at least to reduce it. ☆ Plant a tree. Trees 6) breathe in carbon dioxide, but only as long as theyre living. ☆ Install low-flow shower heads and faucets. Youll use less than half the water without 7) decreasing performance . ☆ Buy energy-efficient electronics and appliances. Then, turn them off when theyre not in use. ☆ Reduce! Reuse! Recycle! Recycling a stack of newspapers only 8) four inches high will save a good-sized tree. ☆ Mount a local 9) campaign against global warming. Educate your community about how to cut greenhouse gas pollution. Support measures at the national and local levels that increase energy efficiency, and that 10) encourage the use of clean, renewable solar and wind technology. Passage A关注地球母亲 （《意识》杂志的麦肯立博士就环境问题对几位专家进行采访。） 麦肯立博士：您认为目前环境面临的最大威胁是什么？ 阿曼·莫特万：现在环境面临的最大威胁来自我们人类对环境的态度。我们对环境的看法决定着我们周围世界的环境。 大多数人认为万物是彼此孤立的。但事实上，每一个个体都是一个息息相关、相互联系的整体的组成部分。比如，一颗树看上去或许是孤立的，但它却对其周围环境中的一切——日光、雨水、风、鸟、矿物质、其它植物和树木、你、我等——施加影响，同时又处于环境的的影响之下。一棵树会影响从它周围吹过的风；风同时又会影响这颗树的生长。了解这棵树与其环境的关系，你就可以预见它的未来。 大多数人对万物之间的相关性视而不见。正因为如此，我们就不了解我们的所作所为会造成的后果。现在我们每个人都应该睁开双眼，看清这个世界的真实面貌——一个因果相循的完整集合体。 麦肯立博士：塞姆基博士，您好。您在研究过程中觉得哪些环境问题最为紧迫？ 塞姆基博士：我们认为最严重的两个环境问题是森林砍伐和全球变暖。由于大量砍伐，现在地球上的树木仅有一万年前的一半。毁掉树木也就破坏了生态环境，因为树木可以维持表层土壤，保证干旱气候地带的降雨量，净化地下水，并将二氧化碳转化为氧气。树木把水从地下带到地面，并让水蒸发到大气中，随后这些蒸发气体又再化为雨水返回地面。这对天然的干旱地区是至关重要的。毁林地区的下风区域会因缺乏降雨来源而变为荒漠。 全球变暖的原因是燃烧石油等矿物燃料引起的，因为这会释放出温室气体进入大气。二氧化碳和其它温室气体会聚积