首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
The earth is witnessing an urban revolution, as people worldwide crowd into towns and cities. In 1800 only five percent of the
The earth is witnessing an urban revolution, as people worldwide crowd into towns and cities. In 1800 only five percent of the
admin
2013-01-29
64
问题
The earth is witnessing an urban revolution, as people worldwide crowd into towns and cities. In 1800 only five percent of the world’s population were urban dwellers; now the proportion has risen to more than forty-five percent, and by the year 2010 more people will live in towns and cities than in the countryside. Humanity will, for the first time, have become a predominantly urban species.
Though the world is getting more crowded by the day, absolute numbers of population are less important than where people concentrate and whether these areas can cope with them. Even densities, however, tell us nothing about the quality of the infrastructure’-roads, housing and job creation, for example--or the availability of crucial services.
The main question, then, is not how many people there are in a given area, but how well their needs can be met. Density figures have to be set beside measurements of wealth and employment, the quality of housing and the availability of education, medical care, clean water, sanitation and other vital services. The urban revolution is taking place mainly in the Third World, where it is hardest to accommodate.
Between 1950 and 1985 the number of city dwellers grew more than twice as fast in the Third World as in industrialized countries. During this period, the urban population of the developed world increased from 477 million to 838 million, less than double; but it quadrupled in developing countries, from 286 million to 1.14 billion. Africa’s urban population is racing along at five percent a year on average, doubling city numbers every fourteen years. By the turn of the century, three in every four Latin Americans will live in urban areas, as will two in every five Asians and one in every three Africans. Developing countries will have to increase their urban facilities by two thirds by then, if they are to maintain even their present inadequate levels of services and housing.
In 1940 only one out of every hundred of the world’s people lived in a really big city, one with a population of over a million. By 1980 this proportion had already risen to one in ten. Two of the world’s biggest cities, Mexico and Sao Paulo, are already bursting at the seams-- and their populations are doubling in less than twenty years.
About a third of the people of the Third World’s cities now live in desperately overcrowded slums and squatter settlements. Many are unemployed, uneducated, undernourished and chronically sick. Tens of millions of new people arrive every year, flocking in from the countryside in what is the greatest mass migration in history.
Pushed out of the countryside by rural poverty and drawn to the cities in the hope of a better life, they find no houses waiting for them, no water supplies, no sewerage, no schools. They throw up makeshift hovels, built of whatever they can find: sticks, fronds, cardboard, tar-paper, straw, petrol tins and, if they are lucky, corrugated iron. They have to take the land no one else wants; land that is too wet, too dry, too steep or too polluted for normal habitation.
Yet all over the world the inhabitants of these apparently hopeless slums show extraordinary enterprise in improving their lives. While many settlements remain stuck in apathy, many others are gradually improved through the vigour and co-operation of their people, who turn flimsy shacks into solid buildings, build school, lay out streets and put in electricity and water supplies.
Governments can help by giving the squatters the right to the land that they have usually occupied illegally, giving them the incentive to improve their homes and neighborhoods. The most important way to ameliorate the effects of the Third World’s exploding cities, however, is to slow down migration. This involves correcting the bias most governments show towards cities and towns and against the countryside. With few sources of hard currency, though, many governments in developing countries continue to concentrate their limited development efforts in cities and towns, rather than rural areas, where many of the most destitute live. As a result, food production falls as the countryside tildes ever deeper into depression.
Since the process of urbanization concentrates people, the demand for basic necessities, like food, energy, drinking water and shelter, is also increased, which can exact a heavy toll on the surrounding countryside. High-quality agricultural land is shrinking in many regions, taken out of production because of over-use and mismanagement. Creeping urbanization could aggravate this situation, further constricting economic development.
The most effective way of tackling poverty, and of stemming urbanization, is to reverse national priorities in many countries, concentrating more resources in rural areas where most poor people still live. This would boost food production and help to build national economies more securely.
Ultimately, though, the choice of priorities comes down to a question of power. The people of the countryside are powerless beside those of the towns; the destitute of the countryside many starve in their scattered millions, whereas the poor concentrated in urban slums pose a constant threat of disorder. In all but a few developing countries the bias towards the cities will therefore continue, as will the migrations that are swelling their numbers beyond control.
The purpose of the passage is ______.
选项
A、to warn about the dangers of revolutions in towns
B、to warn about the possibility of a population explosion
C、to suggest governments should change their priorities
D、to suggest governments invest in more housing in cities
答案
C
解析
转载请注明原文地址:https://kaotiyun.com/show/Rd1O777K
0
考博英语
相关试题推荐
Afterthirtyyearsoftelevision,peoplehavebecome"speedwatchers".Consequently,ifthecameralingers,theinterestofthe
Scienceisadominantthemeinourculture.Sinceittouchesalmosteveryfacetofourlife,educatedPeopleneedatleastsome
Thescientistshaveabsolutefreedomastowhatresearchtheythinkitbestto_____.
______yourrequestforarefund,wehavereferredthatmattertoourmainoffice.
TestsconductedattheUniversityofPennsylvania’sPsychologicalLaboratoryshowedthatangerisoneofthemostdifficultemot
Regionalplanningdealswithproposalsconcerningoutlyingcommunitiesandhighwaysaswellaswithurbanaffairs.
Probablyoneofthemostrevolutionaryinnovationsinscienceduringthiscenturywastherecognitionofthedualityofmatter;【
Probablyoneofthemostrevolutionaryinnovationsinscienceduringthiscenturywastherecognitionofthedualityofmatter;【
Probablyoneofthemostrevolutionaryinnovationsinscienceduringthiscenturywastherecognitionofthedualityofmatter;【
Thepeoplewereannoyedbythe______supplyofelectricityandwaterinsummer.
随机试题
患儿,女,3个月。腹泻时曾长期使用抗生素,症见满口见屑,状如雪花。应首先考虑的诊断是
痰湿内阻所致头晕的特征,是伴有
(中国政法大学考研真题)在下列情形中,不具有民事诉讼主体资格的有哪些?()
人民法院在适用简易程序审理刑事公诉案件时,下列选项中,属于人民法院应将简易程序转为普通程序的情形的有()
会员对本单位从业人员作出的处罚处分应计入()。
甲公司在钢笔上注册了“篮彩”商标。下列行为中,属于假冒注册商标行为的是()。
下表所示我国不同地区2010年粮食生产效率。读表回答下列问题。自然资源效率最低地区与最高地区相比,其种植业优势主要表现在()。①光照充足②昼夜温差大③水热配合好④机械化水平高
利用“方差分析表”进行方差分析时,该表不包括的项目有()
唐代诗人自居易的《大林寺桃花》诗日:“人间四月芳菲尽,山寺桃花始盛开。”许多人对此提出疑义。北宋科学家沈括曾在四月登庐山实地考察,亲眼见到白诗中所描绘的景象,于是在《梦溪笔谈》中指出:“平地三月花者,深山中则有四月花,此地势高下之不同也。”现代科学研究表明
计算机病毒是指________。
最新回复
(
0
)