阅读理解。 Dolphins and sharks are showing up in surprisingly shallow wat

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Dolphins and sharks are showing up in surprisingly shallow water just off the Florida coast. Mullets, crabs,rays and small fish gather by the thousands off an Alabama pier. Birds covered in oil are crawling deep into marshes (沼泽), never to be en again. Marine scientists studying the effects of the BP disaster (英国石油公司漏油事件) are eing some strange phenomena. Fish and other wildlife em to be fleeing the oil out in the Gulf and clustering in cleaner watersalong the coast in a trend that some rearchers e as a potentially troubling sign. The animals' prence cloto shore means their usual habitat is badly polluted, and the crowding could result in mass die-offs as fish run out of oxygen. Also, the animals could easily be captured by their enemies. The nearly two-month-old spill (漏油) has created an environmental disaster in US history as tens of millionsof gallons have flown into the Gulf of Mexico ecosystem. Scientists are eing some unusual things as they try to understand the effects on thousands of species of marine life. For nearly four hours Monday, a three-person crew with Greenpeace cruid past delicate islands and mangrove-dotted inlets in Barataria Bay off southern Louisiana. They saw dolphins by the dozen frolicking (嬉戏) in the oily sheen (光泽) and oil-tinged pelicans feeding their young. But they spotted no dead animals. "I think part of the reason why we're not eing more yet is that the impacts of this crisis are really justbeginning," Greenpeace marine biologist John Hocevar said. The counting of dead wildlife in the Gulf is more than an academic exerci; the deaths will help determinehow much BP pays in damages.

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健康环保累阅读概念：

健康环保类文章常是介绍科学知识、生活常识和环境保护方面的短文。体裁有记叙文、 说明文、议论文和各种应用文。

健康环保类文章阅读技巧：

   健康环保类文章常是介绍科学知识、生活常识和环境保护方面的短文。阅读此类短文要以现象或事物为中心进行思考，理解现象产生的原因、条件和客观规律等。同时要抓住事物的特征、用途和相互关系等。科普环保类文章一般为说明文，从结构上看大致可分为三个部分：   第一部分一般是文章的首段，主要用来提出文章的主题，即文章想要阐述、说明的主要内容；   第二部分是文章的主体，可由若干个段落组成，对文章的主题进行展开说明；   第三部分是结尾段，对文章的主题进行归纳总结。这类文章多用一般现在时，而且一般多使用客观性词语表述。有时为了强调客观性，也常使用被动语态。   从近几年的考试题来看，科普环保类的文章越来越与人们的实际生活相接近。由于此类文章缺乏故事情节，很多同学对此类文章感到费解。但一般的科普类文章都是就事论事，需要逻辑推理和想象的时候较少，因此此类阅读题也没有同学们想象中的那么难，只要多加训练，就能较好地答题。【阅读策略】 1、概要(Summarizing)：  阅完材料后，将所阅材料浓缩，摘要，做出所阅材料的书面或口头梗概。 2、组织(Organization)：  阅读后根据阅读内容，识别观点、人物、事件之间的关系以及文章的结构关系。如：时间关系、比较或对比关系、相关关系及因果关系等。