题文
The Development of CitiesMass transportation revised the social and economic fabric of the American city in three fundamental ways. It catalyzed physical expansion, it sorted out people and land uses, and it accelerated the inherent instability of urban life. By opening vast areas of unoccupied land for residential expansion, the omnibuses, horse railways, commuter trains, and electric trolleys pulled settled regions outward two to four times more distant form city centers than they were in the premodern（现代文明之前）era. In 1850, for example, the borders of Boston lay scarcely two miles from the old business district; by the turn of the century the radius extended ten miles. Now those who could afford it could live far removed from the old city center and still commute there for work, shopping, and entertainment. The new accessibility of land around the periphery of almost every major city sparked an explosion of real estate development and fueled what we now know as urban sprawl. Between 1890 and 1920, for example, some 250,000 new residential lots were recorded within the borders of Chicago, most of them located in outlying areas. Over the same period, another 550,000 were plotted outside the city limits but within the metropolitan area. Anxious to take advantage of the possibilities of commuting, real estate developers added 800,000 potential building sites to the Chicago region in just thirty years – lots that could have housed five to six million people.
Of course, many were never occupied; there was always a huge surplus of subdivided, but vacant, land around Chicago and other cities. These excesses underscore a feature of residential expansion related to the growth of mass transportation: urban sprawl was essentially unplanned. It was carried out by thousands of small investors who paid little heed to coordinated land use or to future land users. Those who purchased and prepared land for residential purposes, particularly land near or outside city borders where transit lines and middle-class inhabitants were anticipated, did so to create demand as much as to respond to it. Chicago is a prime example of this process. Real estate（财产）subdivision（细分再分的部分）there proceeded much faster than population growth.
小题1:With which of the following subjects is the passage mainly concerned?
A Types of mass transportation.
B Instability of urban life.
C How supply and demand determine land use.
D The effect of mass transportation on urban expansion.
小题2:Why does the author mention both Boston and Chicago?
A To demonstrate positive and negative effects of growth.
B To exemplify cities with and without mass transportation.
C To show mass transportation changed many cities.
D To contrast their rate of growth.
小题3:According to the passage, what was one disadvantage of residential expansion?
A It was expensive.
B It happened too slowly.
C It was unplanned.
D It created a demand for public transportation.
小题4:The author mentions Chicago in the second paragraph as an example of a city,
A that is large.
B that is used as a model for land development.
C where the development of land exceeded population growth.
D with an excellent mass transportation system. 题型：未知 难度：其他题型
答案
小题1:D
小题2:C
小题3:C
小题4:C
解析
文章论述了“公共交通从三方面改变了城市的社会和经济结构。”采用分类写法。文章一开始就提出三方面：第一，促进城市实质性的扩展；第二，把人和土地分民别类加以利用；第三，加速了城市生活的不稳定性。然后就是三方面的具体内容。
小题1:公共交通运输对城市扩展的影响。文章开门见山提出这一点“公共交通运输从三个根本方面改变了美国城市的社会和经济结构。”后面文章内容就是三方面的具体化。
A. 公共交通运输类型。 B. 城市生活的不稳定性。 C. 供需如何决定土地利用。这三项文中作为具体问题提到，并不是文章涉及的主要题目。
小题2:说明公共交通改变了许多城市。答案箭第一段第四句“举例说，1850年，波士顿市界离老的商业地区几乎不到2英里，到了这世纪末，其半径扩至10英里。现在供得起的人们可以住得很远，远离老的城市中心，仍然来回去那里上班、购物和娱乐”。第七句，“举例说，在1890至1920年期间，据记载，芝加哥市界内有约250，000个新的住宅楼区大多数设在郊区。经过同样这段时期，市区外，但仍在芝加哥大都市地区内，又计划建造了550，000个住宅楼区。”
A. 表示成长的正反两方面效果。B. 举有无公共交通运输的城市为例。 D. 对比两者成长率；都不是本文中举两城市例子的目的。
小题3:没有计划。见第二段第三句起“城市扩展蔓延根本无计划，好几千个小的投资商进行扩展，毫不考虑相互协调配合利用土地，也不考虑未来土地利用。”
A. 太贵和 B.太慢，两个选项，文内没有提。D. 它创造了对公共交通运输的需求。这不是住宅扩展的一个缺点，而是三个根本改变城市的一个方面。见第一段第三句：“通过大量开发未占土地扩建住宅，公共汽车、马车、铁路、来回火车，有轨电车把已有人定居的居住区向外扩展了三四倍，比他们先现代时期的市中心更远。”
小题4:（第二段中以芝加哥城市例子说明）土地开发超过人口增长速度。答案详见第二段“这些购买和置备土地建设住宅，特别是购置临近城市或就在市界外的土地，抢在交通线路和中产阶层的居民进去之前。他们这样做的目的是创造一种需求，也是响应这种需求。芝加哥就是这种过程的典型例子。那里的房地产小块土地比人口增长快得很多很多。”
A. 城市大。B. 用作土地开发的样板。 D. 具有优越的公共的交通系统。
考点
据考高分专家说，试题“The Development of C.....”主要考查你对 [社会现象类阅读 ]考点的理解。社会现象类阅读
社会现象类阅读概念：
这类文章通过写人记事来揭示文章的主题，显示其社会意义，一般采用顺序或倒叙来叙述。题目经常是一些细节问题。考查的方面可以是原因和其中引发的思考。
社会现象类阅读解题技巧：
这类文章通过写人记事来揭示文章的主题，显示其社会意义，一般采用顺序或倒叙来叙述。题目经常是一些细节问题。考查的方面可以是原因和其中引发的思考。阅读这类文章要理清思路。
1、浏览试题，明确要求。
在阅读文章前，最好先浏览一下文章后面的题干和选项。知道了问题后再去看文章，可使思路更敏捷，而且也便于阅读时留意文中出现的与选项有关的信息。
2、通读全文，抓住主要内容。
在不影响理解的前提下，尽可能地阅读以便在尽可能短的时间内理解文章或段落的内容。阅读时，如遇到不熟悉的单词、词组或一时看不懂的句子，不要停下来苦思冥想，继续读下去，通过上下文的词语和句子可能就理解了。
3、抓住中心思想和段落大意。
通读全文时，要特别注意主题句。每篇文章或每个段落都有与文章有关的句子，尤其是科技、政论性文章的主题句一般都在文章的开头或结尾，插在中间的很少。所以，文章的第一段或开头的第一、二个句子往往包含着文章的中心思想、作者的意图或全文的概述，因此要特别注意，彻底理解。
4、有针对性地仔细阅读，找寻所需信息。
在前面的基础上，可进行有针对性地阅读了。把与问题无关的内容一扫而过，而对于和问题有关的内容认真阅读，还可以用笔在下面做出记号。再把这些信息与问题的要求结合起来，逐条分析，综合判断，找出正确答案。
5、进行合理的推理判断。
对文章有了全面的了解之后，可以按照文章要求以及上下文之间的关系，做出推理判断。在进行推理判断的时候，需要综合考虑句型、语法、句子之间的逻辑关系、文化背景等方面的因素。
6、认真复读，验证答案。
要用全文的中心思想统帅各个题目，研究其内在联系和逻辑关系，并依次审核那些还未打上的题目，确保理解无误。
