Almost a decade after the hit Finding Nemo made clownfish seem totally warm and lovable.environmentalists are now looking for a real-life sequel:Saving Nemo． In the United States.a request has been m 题目和参考答案——青夏教育精英家教网—

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18．Almost a decade after the hit Finding Nemo made clownfish seem totally warm and lovable，environmentalists are now looking for a real-life sequel：Saving Nemo．
    In the United States，a request has been made to extend the protections of the Endangered Species Act to marine species including the clownfish．
But before you start shedding tears for Nemo and his buddies，keep in mind that this request is not based on any evidence of a decline in the clownfish population．Instead，what has sparked concern is the worsening health of coral reefs，which more than one million aquatic species including the clownfish depend on to thrive，even survive．
    In ways it makes more sense to move to protect a species when its habitat declines rather than its actual population．The most important mission of the Endangered Species Act is the protection of species'habitats； without their habitats，there's almost no hope of saving endangered animals，except perhaps in a zoo．
　 Earlier this year，alarming news came about the world's largest coral reef system，Australia's Great Barrier Reef （GBR，大堡礁）．A study has shown the Reef is in sharp decline，with half of its coral cover gone in the past 27 years．
　   Katharina Fabricius，an Australian coral reef ecologist co-authoring the study，has been diving and working on the GBR since 1988-and has watched the decline．"There are still a lot of fish…but not the same color and diversity as in the past，"she said．
　 The study team used information from more than 2，000 surveys to determine the rate of decline between 1985 and 2012．That overall 50-percent decline，they estimate，is a yearly loss of about 3.4 percent of the Reef．If the trend continued，the coral cover could halve again by 2022．
　 Several main factors are responsible for the decline，the study found．Intense tropical cyclones （热带气旋），believed to be fueled by global warming，have caused massive damage to reefs in the central and southern parts of the Reef．Meanwhile，population explosions of the coral-consuming crown-of-thorns starfish （长棘海星） have affected coral populations along the length of the Reef．Two severe coral bleaching （变白） events，caused by ocean warming，have also had major damaging impacts in northern and central parts of the GBR．
72．A request has been made in the United States to save the clownfish becauseB
A．it is a totally warm and lovable species
B．the health of its habitat is worsening
C．its population has dropped sharply
D．few clownfish can be found in zoos
72．What does the underlined word"thrive"in Paragraph 3 probably mean？C
A．To feed oneself
B．To keep oneself safe．
C．To grow and develop well
D．To attract attention．
74．According to the article，what is the AUTHOR'S attitude toward the request in the U．S．？A
A．He/she supports it．
B．He/she finds it ridiculous．
C．He/she thinks it is reasonable but needs revising．
D．There's no WAY to tell．
75．According to the article，all of the following factors contribute to the decline of Great Barrier Reef's coral cover exceptA
A．the growing popularity of scuba （水肺）diving around the Reef
B．stronger tropical cyclones fueled by global warming
C．the rapidly growing population of type of coral-eating starfish
D．coral bleaching caused by rising temperature of the ocean water．

分析本文属于说明文阅读，作者通过这篇文章主要向我们描述了许多海洋生物赖以生存的珊瑚礁环境剧烈恶化，导致了许多海洋生物濒临灭绝，它减少的原因有全球变暖，长棘海星数量的增多，海水漂白，美国已发起保护小丑鱼的行动，间接保护珊瑚礁．

解答 72．B．细节理解题．根据文章第三段"keep in mind that this request is not based on any evidence of a decline in the clownfish population．Instead，what has sparked concern is the worsening health of coral reefs，which more than one million aquatic species including the clownfish depend on to thrive，even survive"，可知拯救小丑鱼是因为它的健康生存环境恶化；故选B．
73．C．推理判断题．根据文章第三段"which more than one million aquatic species including the clownfish depend on to thrive，even survive"可知珊瑚礁是很多生物赖以生存的，可推测意思为发展良好，茁壮成长；故选C．
74．A．推理判断题．通读全文，可知文章在讲珊瑚礁的几句减少，可知作者是赞同对珊瑚礁的保护的，因此作者对美国保护小丑鱼的要求是支持的；故选A．
75．A．细节理解题．根据文章最后一段可知造成珊瑚礁急剧减少的原因有全球变暖，长棘海星数量的增多，海水漂白；故选A．

点评考察学生的细节理解和推理判断能力，做细节理解题时一定要找到文章中的原句，和题干进行比较，再做出正确的选择．在做推理判断题不要以个人的主观想象代替文章的事实，要根据文章事实进行合乎逻辑的推理判断．

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