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导语：以下英语网为大家整理了全面的职称英语考试历年真题及答案解析，《职称英语考试试题汇总：历年真题及答案解析》供大家参考学习。更多职称英语考试试题敬请关注英语网！ 【推荐】关注英语网微信：yingyuwang2013，更快获取真题答案及成绩查询信息。 第4部分：阅读理解(第3l一45题，每题3分，共45分) 下面有3篇短文，每篇短文后有5道题。请根据短文内容，为每题确定1个最佳选项。 第一篇 Arctic Melt Earths North and South Poles ale famous for being cold and icy．Last year，however，theamount of ice in the Arctic Ocean feU t0 a record low． Normally，ice builds in Arctic waters around the North Pole each winter and shrinks during thesummer．But for many years，the amount of ice left by the end of summer has been declining． Since 1979，each decade has seen an 11．4 percent drop in end of summer ice cover．Between1981 and 2000，ice in the Arctic lost 22 percent of its thickness，becoming 1．13 meters thinner． Last summer，Arctic sea ice reached its skimpiest levels yet．By the end of summer 2007，theice had shrunk to cover iust 4．2 million square kilometers．Thats 38 percent less area than the average cover at that time of year．And its a very large 23 percent below the previous record low，whichwas set just 2 years ago．This continuing trend has scientists concerned． | 
