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
A country is said to become more urbanized as its cities grow in number, its urban populations increase in size, and the proport
A country is said to become more urbanized as its cities grow in number, its urban populations increase in size, and the proport
admin
2010-04-30
56
问题
A country is said to become more urbanized as its cities grow in number, its urban populations increase in size, and the proportion of its population living in urban areas rises. The degree of urbanization varies across the world but generally reflects the wealth of individual countries. The rich, industrialized countries tend to be the most highly urbanized. In the Netherlands, for example, 89 percent of the population is urban, compared to only 13 percent in Ethiopia, a much poorer country.
In recent history, the degree of urbanization has been relatively low in Africa and Asia compared to Europe and North America. However, as a result of large-scale migration from rural areas and a natural increase in the urban populations themselves, the populations of cities in the developing world have been growing rapidly. The population of Cairo, for example, has tripled in the last 40 years, and more than half of Africa’s people are expected to be living in cities by 2020. Similarly, the urban share of the population in China has risen from about one in five in 1960 to nearly half today.
One of the most noticeable features of urban growth in the 20th century has been the rapid increase in the number of very large cities. Before 1800, cities with more than a million inhabitants were rare. Since then, however, the number of such cities has risen steadily. In 1900 there were at least 13 cities with more than a million inhabitants, and by 1950 the number had grown to 68. By 2000 there will be at least 250 cities of more than a million--many of which will be in Asia, especially in India and China.
Even a city of a few million people is dwarfed by the urban giants with populations exceeding 10 million. According to various estimates, there may be 20 or more of these gigantic metropolitan areas already. Most are in Asia: Tokyo, Seoul, Osaka, Shanghai, Mumbai (Bombay), Beijing, Calcutta, Jakarta, Tianjin, Karachi, Delhi, and Manila. The other giants are New York, Sao Paulo, Mexico City, Los Angeles, Moscow, Buenos Aires, Rio de Janeiro, and Cairo. In coming years, explosive growth in cities of the developing world such as Lagos and Santa Fe de Bogotá will almost certainly propel them into this group. By the year 2020, several cities are expected to have populations of more than 20 million.
Such large concentrations of people pose immense environmental problems. In Mexico City, for example, one-quarter of the population has no access to running water, and one in five houses is not connected to the sewerage system. Located in a valley, the city suffers so badly from air pollution from motor vehicles that the city center must periodically be closed to traffic. Mexico City’s problems are replicated in most other large cities in the developing world, and to a lesser degree in the large cities of industrialized countries as well.
Which of the following is a change in city development in the 20th century?
选项
A、More than half of African population will live in cities.
B、Many cities in Asia will have more than 20 million inhabitants.
C、Cities in the developing world will be even larger.
D、More cities in Asia have more than one million people.
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/1XOK777K
0
大学英语六级
相关试题推荐
A、Shehasn’twornthedressforalongtime.B、Shedoesn’tlikethedressverymuch.C、Sheintendstogivethedresstohersist
A、Becausesheisnotinterestedinthetopic.B、Becauseherroomistoolittletoagreetoit.C、Becauseshedidn’thaveenough
TheTajMahalistoopenonmoonlitevenings20yearsaftersecurityfearsendednightvisits.India’sSupremeCourtwillallow
Britain’sdependencyoncertainessentialserviceshasgreatlywidenedandbecomeakeyroleinthecountry’s______.Welearn
A、AdmissionstandardsattheUniversityofMichigan.B、Theuseofstandardizedtestsforcollegeadmissions.C、TheTOEFL(Testof
A、Ahouse.B、Acar.C、Ahotel.D、Anartgallery.AWhatisthemangoingtoview?
Accordingtothepassage,countingisdifferentfrom______.Wherecanman’selementarynumbersensealsobefoundaccordingto
SonjaLyubomirskyboughtthecarjustbecauseshewantedtoownaPrius.Thosepeoplewhohavesetupcorrectgoalswillalways
______(为了最大限度减少窃案发生的可能性),theyinstallagoodalarmsystem.
Inthepast,manydoctorsmanagedtofoolpatientsbytakingadvantageof______.Asapopularmedicaltreatmentinthepast,b
随机试题
在某班一次以《我想对你说……》为题的作文课中,小文同学写的《学习好的同学,我想对你说……》引起了李老师的注意。作文中表达了他也想向优秀生那样出色,但他们的一些行为,却也让他不满,例如不爱值日、常欺负人等。小文是班内一名学习中等的学生,平时言语不多。读完他的
主观性试题
鲍姆加登被称为“美学之父”的标志性作品是()
按要求做下列各题设f(x)为连续函数,可由∫0xtf(t)dt=f(x)+x2所确定,求f(x).
A.INHB.RFPC.SMD.EMB损害前庭蜗神经的是
放出一个正电子的衰变是
关于特征X线的叙述,正确的是
不属药师向医师提供的用药咨询服务内容是
中国公民李某为某大学的教授,同时也是一位作家,2015年1—12月除了从所在大学取得工资薪金收入外,还取得以下收入:(1)2月份受某出版社委托进行审稿,取得审稿收入25000元,当即从中拿出8000元通过非营利性的社会团体捐赠给贫困地区。(2)3月份与
根据经济学家最新的研究显示,年收入在10000美元以下时,随着家庭收入的增加,家庭成员的幸福感会明显增强。但是,一旦年收入达到10000美元以上,即使经济持续繁荣,家庭收入持续增加,家庭成员幸福感的增强却很缓慢。根据上述观点,可以推出()。
最新回复
(
0
)