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1、原文标题：Potomac Named Most Endangered River内容简介：概述：各大利益集团企图削弱政府对水源的保护以维护其既得利益，净水倡导组织呼吁国会消除此类障碍。Hints:Whit OverstreetPotomac RiverkeepersSteve ChaconasAmerican RiversClean Water ActIrvin温馨提示：00:26秒处有一处破折号This coal powered electrical plant will close soon, but until then, it is putting toxic substances i
2、nto the water and changing the habitat, says Whit Overstreet, with the environmental group, Potomac Riverkeepers. They discharge hot water back into the river that wouldnt be there naturally, which can be problematic for aquatic life. Scientists have also found that chemicals appear to be causing in
3、tersexed fish - especially male fish with female traits. But fishing guide Steve Chaconas says he thinks the Potomac has improved from the filthy river it was years ago. Fish are very vibrant, people clean up after themselves, finally!American Rivers warns the Potomac and other rivers could backslid
4、e if the Clean Water Act of 1972 is weakened, a distinct possibility, says Irvin. Congressmen from various parts of the country, representing big agricultural interests and industry interests, are trying to weaken the act, trying to prohibit the federal government from protecting, for example, small
5、 headwater streams and wetlands, from regulating the use of pesticides on farmland.Clean water advocacy groups are calling on Congress to kill any legislation that erodes those vital protections.该煤电厂将要关闭，但在那之前，工厂仍然在把有毒物质排入河流并改变（水生生物）栖息地来自环境组织“波托马克河流保卫者”的怀特?奥威尔斯垂特说。“他们把热水排回到河里，而这种本来不应该出现在河里的热水会对水生生物带来危害。”科学家还发现化学物质的出现会导致雌雄间性鱼的出现特别是带有雌性性征的雄性鱼。不过渔业向导斯蒂夫?乔克纳说他认为波托马克河与几年前的污浊水质相比已经有所改善。“鱼群很有活力，人们最终还是要自己来清理水污染！”欧文说，美国河流协会警告说，如果1972年的清洁水法案被削弱了这是很可能的波托马克河和其他河流（的水质）可能会恶化。“来自国家不同领域的国会议员，他们代表农业大户和工业的利益，正试图削弱法案，妨碍联邦政府的保护工作，比如说调整小河流水源地和湿地的农田杀虫剂用量。”净水倡导组织呼吁国会否决一切会削弱那些重要保护措施的立法。2
