题文
Researchers at Yale, Texas A&M and Boston University predict that by 2030 urban areas will expand by more than 463,000 square miles, or l．2 million square kilometers． That is equal to 20,000 American football fields becoming urban every day for the first three decades of this century．The growth in urban areas will go with the construction of roads and buildings, water and sanitation facilities, and energy and transport systems that will transform land cover and cities globally． Recent estimates suggest that between $25 trillion（万亿） and $30 trillion will be spent on infrastructure（基础设施） worldwide by 2030, with $100 billion a year in China alone．
"Considering the long life and near unavoidability of infrastructure investments, it will be critical for current urbanization-related policies to consider their lasting impacts," said Karen Seto, lead author of the study． "We have a huge opportunity to shape how cities develop and their environmental impacts．"
Nearly half of the increase in high-probability ----defined as greater than 75 percent ---- urban expansion is forecasted to occur in Asia, with China and India absorbing 55 percent of the regional total． In China, urban- expansion is expected to create a l,l00-mile coastal urban corridor from Hangzhou to Shenyang． In India, urban expansion will be gathered around seven state capital cities, with large areas of low-probability growth forecasted for the Himalaya region where many small villages and towns currently exist．
Africa's urban land cover will grow the fastest, at 590 percent above the 2000 level of 16,000 square miles． Urban expansion win be concentrated in that continent's five regions: the Nile River in Egypt; the coast of West Africa on the Gulf of Guinea; the northern shores of Lake Victoria in Kenya and Uganda and extending into Rwanda and Burundi; the Kano region in northern Nigeria; and greater Addis Ababa, Ethiopia．
"Urban expansion is concentrated in． only a few areas where there are large cities and industry," said Seto． "From the northern shore of Lake Victoria down to Rwanda is also a major hotspot of urban expansion．"
In North America, where 78 percent of the total population lives in urban areas, urban land cover will nearly double by 96,000 square miles by 2030．The study also forecasts that 48 of the 221 countries in the study will experience insignificant amounts of urban expansion． "
小题1:As for China, the expansion of urban area means ．A．$ 100 billion will be spent on infrastructure a yearB．creating a coastal urban corridor from Hangzhou to QingdaoC．it will become the fastest developing country in the next decadeD．it will make up 55% of the increase in urban expansion in Asia小题2:According to the passage infrastructure doesn't include ．A．construction of roadsB．sanitation facilitiesC．energy systemsD．land cover transformation小题3:In paragraph three the underlined word “their lasting impacts” refers to the impacts of .A．the development of cities B．urbanization-related policiesC．infrastructure in vestmentsD．China’s expansion of urban area小题4:The best title for this passage should be .A．The limitation of urban expansionB．More investment on infrastructureC．The fast development of the third worldD．The future urban expansion of the world 题型：未知 难度：其他题型
答案
小题1:A
小题2:D
小题3:C
小题4:D
解析
这篇文章讲的是世界上未来的城市建设的情况，基础建设包括哪些方面，要投资多少搞基础建设，各个国家不同的情况。
小题1:细节题：从第二段的句子：and $30 trillion will be spent on infrastructure（基础设施） worldwide by 2030, with $100 billion a year in China alone．可知中国要花1千亿在城市的基础建设上。选A。
小题2:细节题：从第二段的句子：The growth in urban areas will go with the construction of roads and buildings, water and sanitation facilities, and energy and transport systems that will transform land cover and cities globally．可知基础建设不包括D项。
小题3:从第三段的第一句话："Considering the long life and near unavoidability of infrastructure investments, 可知it指的是基础建设的投资。选C
小题4:主旨题：从第一段的内容：Researchers at Yale, Texas A&M and Boston University predict that by 2030 urban areas will expand by more than 463,000 square miles, or l．2 million square kilometers．可知这篇文章讲的是世界上未来的城市建设。选D
点评：本文是一篇议论文。话题对学生不是很熟悉，在解答这类问题时要求学生抓住题干文字信息，采用针对性方法进行阅读，答案在文章中可以直接找到。
考点
据考高分专家说，试题“Researchers at Yale,.....”主要考查你对 [政治经济类阅读 ]考点的理解。政治经济类阅读
政治经济类文章的概念：
要做好这类阅读，平时就要注意了解国内外发生的政治经济大事，掌握一定背景知识，对这类文章的叙述特点及内容安排有一定了解，还要扩展这方面的词汇。阅读这类文章，要抓住文章的核心，即文章整体和各段主要在说什么，也要注意段落之间的逻辑关系。
如何备考政治经济类阅读理解题：
【题型说明】政治经济类阅读文章是高考常选材料之一。该类文章时代气息浓郁，语言鲜活，但熟字新义词、超纲词及专业词语多，长句、难句多。政治类文章大多数是同学们感性趣的内容，读起来倒有似曾相识的感觉，经济类文章读起来就像是雾里看花，文章看完，一头雾水。再加之这类文章的命题侧重于词义猜测、推理判断和文章主旨，同学们对这类题材是望而生畏。
【备考策略】建立心理优势。针对不同体裁的文章，我们要采取相应的阅读方法和技巧。政治类文章多采用记叙文形式，我们可采取“顺读法”，以便抓关键语句，领会文章主旨；而经济类文章则多采用说明文形式，我们则可以采取“逆读法”，先读试题，再从文章中查找有用信息。若遇到的确难读的材料。千万不用着急，因为你觉得难，其他人也一定是同感。在高考前，我们就要有这种心理准备，高考试卷肯定有一、两篇难以阅读的材料。不过，我们平时可以有意识地从报刊杂志上找一些较难的阅读材料来阅读，以培养自己迎难而上的心理素质。
【答题方法】
1、寻找主干：
根据英语中五种基本句型结构，把句子中的主语、谓语、宾语、表语等主要成分找出来，其他成分如定语、状语、补语等则易于理解。找到了句子主干，句子的意思至少明白了一半。
2、剔除从句：
在一个长句中可能会出现若干个从句，在理解时，如果把各个从句剔除出来单独理解，然后把大意拼凑起来，整个长句的意思就会明白六、七分。
3、辨别分句：
一个长句如果是由几个并列、转折、递进、对比关系的分句组成，句中往往有表示这些分句关系的连接词，只要能弄清楚分句和分句之间的逻辑关系，再把各层分句的意思加以连贯，整个长句的句意基本上能跃然脑中。
4、寻找关键词：
如果一个句子看完，一点句意的感觉也没有，下下策就是抓住句中的关键词，通过关键词大体弄懂这个长句的意思。
