科技英语 翻译.doc

Arguments for the effort and cost of protecting species are often couched in esthetic or ethical terms such as the beauty of diversity or the arrogance of people in assuming that the earth was created solely for their benefit.However, one problem that is viewed with growing seriousness is the reduction of the earths total gene pool with the passing of each species. By allowing plants and animals to pass out of existence, it is argued, we may be losing things of incalculable and irreplaceable value to people if only we knew it.Who knew the value of bread mold 50 years ago?But the discovery of penicillin has saved countless lives.Increasingly, scientists and environmentalists are coming to the conclusionThe disappearing life forms resemble the canaries that coal miners used to carry down into the shafts before the introduction of the safety lamp.Today, the endangered species are an early warning systemThe history of life on earth has been punctuated by mass extinctions,(that is), the sudden disappearance of a large variety of plants and animals, possibly as a result of impacts by giant meteors.In one of the most dramatic dieoffs,65 million years ago, more than half of all species on earth, including the dinosaurs,vanished.While experts debate the cause of these catastrophes and the probability and timing of the next one (=catastrophe)， scientists at the recent National Forum on Biodiversity warned that another sort of mass extinction is now taking place. They attribute the developing ecological disaster to the systematic destruction of the rain forests, particularly those in Latin America and Southeast Asia. Perhaps most troubling to the scientists is the fact that plants and animals are disappearing faster than they can be found and described. Naturalists have catalogued 1.6 million species, A single hectare (2.5 acres) of this dense growth may include more than 100 species of tree,each(of the species) with its own interdependent colonies of plants and animals. Crossing domestic corn varieties with this maize produces hybrids, also with a high resistance to many crop diseases, A great many of the prescription drugs sold in the U S. are based on unique chemical compounds(化合物) found in tropical plants.In search of such medical bounty, Mark Plotkin, director of the World Wildlife Funds plant program, has spent months at a time living with the elders of the Tirio tribe on the Suriname-Brazil border, studying the little-known plants (that) the tribesmen use to treat patients. Plotkin and his colleagues are also assessing the economic potential of such tropical plants askiller potatoes, which trap insects on their sticky surface hairs; the Amazonian palm, (which is) rich in vitamins A and C;the pupunha palm, whose proportions of carbohydrates, proteins, oil, minerals and vitamins make it an ideal staple food;and Fevillea, a vine with seeds rich in an oil that may one day be used as an industrial lubricant.(Because they are)Alarmed by the rate of tropical deforestation, scientists are no longer shy about criticizing commercial and public development organizations that persist in the removal of vast areas of rain forests. In the past, many biologists thought it was almost unscientific to get involved in conservation politics,? says Lovejoy. But no more. The rate of species loss is suddenly dawning on people. The rate of species loss is suddenly dawning on people. The House of Representatives has passed legislation sponsored by Gus Yatron (1927 - 2003), Democrat of Pennsylvania, mandating that the U.S.Agency for International Development set aside $10 million to preserve biodiversity.The time has come to link ecology to economic and human development.保护物种的努力和成本的争论往往横卧在美学或道德的条款，如美的多样性或假设地球是只为了自己的利益建立在人的嚣张气焰。然而，与日益严重的问题，被认为是地球的总基因库，通过每个物种的减少。通过让植物和动物，传递出的存在，有人认为，我们可能会失去的东西不可估量和不可替代的价值，只要我们知道它的人。谁知道面包模具的价值，50年前呢？但发现的青霉素拯救了无数生命。越来越多的科学家和环保主义者的结论消失的生命形式类似于金丝雀矿工用来扛下来到轴前引进安全lamp.Today，濒危物种是一个早期预警系统地球上生命的历史一直穿插了生物大灭绝（即），种类繁多的植物和动物的突然消失，这可能是由于巨型流星雨的影响。在最引人注目的dieoffs之一，在6500万年前，地球上包括恐龙，一半以上的所有物种消失了。虽然专家们辩论这些灾难的原因和下一个（大灾难）的可能性和时机，在最近举行的全国生物多样性论坛的科学家警告说，正在发生大规模灭绝的另一个排序。他们有系统地破坏的热带雨林，特别是在拉丁美洲和东南亚发展中国家的生态灾难。也许科学家最令人不安的是植物和动物正在消失的速度比他们可以被发现和描述。博物学家编目1.6万个物种，一公顷（2.5亩）这个茂密的增长可能包括超过100种的树，每一个与自己相互依存的殖民地的植物和动物物种。跨越国内玉米品种玉米生产混合动力车，也是一个伟大的许多在U S.销售处方药的基础上独特的化学物质（化合物）的热带植物中发现的许多作物病害，具有极高的抗。马克普洛特金，在世界野生动物基金的工厂计划主任，在寻找这类医疗赏金，花了几个月生活的“Tirio苏里南 - 巴西边境的部落长老时的鲜为人知的植物（，）的研究族人用它来治疗病人。Plotkin和他的同事们评估等热带植物的经济潜力“杀手”土豆，诱虫粘物表面的毛;的亚马逊手掌，（这是）含有丰富的维生素A和C; pupunha掌，其碳水化合物，蛋白质，油脂，矿物质和维生素的比例使其成为一个理想的主食热带森林砍伐的速度感到震惊食品;和Fevillea的，与种子含有丰富的油，可能有一天被用来作为工业润滑剂的藤蔓。（因为他们），科学家们不再羞于批评商业和公共发展组织坚持在去除大片热带雨林。在过去，许多生物学家认为它几乎是不科学涉足保护政治，“洛夫乔伊说。但没有更多。物种损失率是对人的突然到来，物种损失率突然更迭人。众议院赞助，由Gus Yatron（1927年 - 2003年），宾夕法尼亚州的民主党人已经通过立法，强制要求国际开发USAgency拨出10万元，保护生物多样性。时间已经到了生态，经济和人类发展联系起来。为保护物种通常以审美或道德方面如多样性或假设地球是专为他们的利益而创造的人傲慢之美的努力和成本参数。然而，有一个问题，与日益严重视与每一物种通过地球的总的基因池的减少。通过使植物和动物传递出来的存在，有人认为，我们可能会失去不可估量的价值和不可替代的事情的人，只要我们知道它。谁知道50年前面包模具的价值？但发现青霉素挽救了无数的生命。越来越多的，科学家和环保人士得出结论消失的生命形式类似于矿工进行入轴前的安全灯介绍金丝雀。今天，濒危物种是一个早期预警系统地球上生命的历史一直伴随着大规模的灭绝，（这是），植物和动物的种类繁多的突然消失，可能是由于影响巨大的流星。在一个最引人注目的dieoffs，65000000年前，超过一半的地球上所有物种，包括恐龙，消失了。虽然专家们这些灾难的原因和下一个的概率和时间的争论（=灾难），在对生物多样性的几届论坛科学家警告说，另一种大规模灭绝正在发生。他们认为发展生态灾难的热带雨林系统的破坏，特别是在拉丁美洲的美国和南洋。也许最令人不安的科学家的事实是，动物和植物正在消失的比他们可以发现和描述的速度。博物学家已经列出了1600000种，一公顷（2.5英亩）这种密集的增长可能包括超过100种的树，每个（物种）与自己的相互依存的植物和动物的殖民地。杂交玉米品种与国内玉米生产杂交种，同时具有高抗作物疾病，许多的压力、为保护物种通常以审美或道德方面如多样性或假设地球是专为他们的利益而创造的人傲慢之美的努力和成本参数。然而，有一个问题，与日益严重视与每一物种通过地球的总的基因池的减少。通过使植物和动物传递出来的存在，有人认为，我们可能会失去不可估量的价值和不可替代的事情的人，只要我们知道它。谁知道50年前面包模具的价值？但发现青霉素挽救了无数的生命。越来越多的，科学家和环保人士得出结论消失的生命形式类似于矿工进行入轴前的安全灯介绍金丝雀。今天，濒危物种是一个早期预警系统地球上生命的历史一直伴随着大规模的灭绝，（这是），植物和动物的种类繁多的突然消失，可能是由于影响巨大的流星。在一个最引人注目的dieoffs，65000000年前，超过一半的地球上所有物种，包括恐龙，消失了。虽然专家们这些灾难的原因和下一个的概率和时间的争论（=灾难），在对生物多样性的几届论坛科学家警告说，另一种大规模灭绝正在发生。他们认为发展生态灾难的热带雨林系统的破坏，特别是