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
Going Forth, The Nations Multiply Unevenly Despite wars, famines, and epidemics, Earth’ s population is booming ahead to new
Going Forth, The Nations Multiply Unevenly Despite wars, famines, and epidemics, Earth’ s population is booming ahead to new
admin
2010-04-28
27
问题
Going Forth, The Nations Multiply Unevenly
Despite wars, famines, and epidemics, Earth’ s population is booming ahead to new records--with no end insight.
Every day, the world adds enough people to populate a medium-sized city in the US. In one month, the number of new world citizens equals the population of New York City. Every year, there are 90 million more mouths to feed, more than the total population of Germany.
Several factors are propelling this rapid growth, including an element that is often overlooked: the huge number of teenagers who axe becoming mothers, particularly in the countries of sub-Saharan Africa. In four African nations--Niger, Mali, Sierra Leone, and Ivory Coast-- 1 out of every 5 adolescent females of childbearing age has a baby annually. The US Bureau of the Census says this high rate of motherhood among teens has helped to maintain the high pace of births across most of the African continent. By starting a family early, a typical woman is Somalia, for instance, has seven children during her lifetime. Equally large families are the rule in Zambia, Zaire, Uganda, Mauritania, Mali, Malawi, and Ethiopia.
The current record-holder for fertility is strife-tom Rwanda, where a typical mother has at least eight or nine children. While population experts often focus on Africa’ s problems, analysts note that teenaged mothers are also far more prevalent in the United States than in France, Germany, Italy, Sweden, or Britain.
This issue--" babies having babies"--has recently gained prominence in the US. Teenaged mother hood in the US has fueled an expansion of the state federal welfare system and brought cries for welfare reform from lawmakers.
With its high rate of teen births, the US now ranks alongside Indonesia and parts of South America, and only modestly ahead of Mexico, India, and Pakistan.
Overall, the fertility rate among Americans remains relatively low at 2.1 births per woman--about the replacement level. Although the US population is expected to climb steadily, from 260 million today to 323 million by 2020, most of that growth will come from immigration.
The Census Bureau estimates that in Haiti, where thousands of citizens are trying to flee to the US because of military oppression and poverty, AIDS will cut the annual growth rate during the next 25 years from 2.1 percent to 1.3 percent.
The decline in growth is even sharper in the Central African Republic, where rates will dip from 2.4 percent to 0.7 percent. In Thailand, which already had low birth rates, AIDS will drive population downward to 0.8 percent a year. In the 16 countries that are hit hardest, AIDS will lower populations by 121million over expected projections by 2020. In Africa, the impact of AIDS is so great that trends toward longer life spans during the past 40 years are being reversed. Some nations will suffer declines in average life spans of 10 to 30 years compared with expected life spans without AIDS.
In the US, where AIDS is also a substantial problem, the impact will be lower because the disease is mostly limited to homosexuals and drug users, says Peter Way, a Census Bureau researcher. In many African nations, AIDS is prevalent among the heterosexual population, which sharply boosts infant mortality.
A compelling chapter in the research deals with aging. Today the median age in developed countries is 35, and in developing nations are only 23. By 2020, the corresponding figures will be 42 and 28. Today there are fewer adults over 60 (525 million) than children under 5 (636 million). As the world population ages, by 2020 the number over 60 will be more than 1 billion, while those under 5 will total 717 million.
The population growth rate in the US is ______.
选项
A、higher than that in India
B、lower than that in Mexico
C、higher than that in Indonesia
D、lower than that in South America
答案
A
解析
细节题。从文章的第九段得知,美国的人口增长率与印度尼西亚及南北部分地区差不多,而稍多于墨西哥、印度和巴基斯坦,故B,C、D均为错误答案。
转载请注明原文地址:https://kaotiyun.com/show/xtqO777K
0
专业英语八级
相关试题推荐
Mostpeoplehaveseenbulliesinaction,makinglifemiserableforothers.Theirtargetsoftenescapetheintimidationrelativel
Thefirstpermanentshelterswereprobablybuilttwentyorfortythousandyearsagobyfish-eatingpeoplewholivedintheplace
Americanstodayhavedifferenteatinghabitsthantheyhadinthepast.Thereisawide【C1】______offoodavailable.Theyhave
Afteracenturyandahalfascordialneighbors,twoofthenation’sbiggestranchesfindthemselvesfeudingliketheHatfields
Throughoutthenation’smorethan15,000schooldistricts,widelydifferingapproachestoteachingscienceandmathhaveemerged
WhatisthetallestmountainonEarth?Mostschoolchildrenwillsaytheansweris【C1】______neartheborderbetweenNepalandTi
PresidentBushonWednesdayissuedhissecondvetoofameasureliftinghisrestrictionsonhumanembryonicstemcellexperiment
In1965,America’sbigcompanieshadahellofayear.Thestockmarketwasbooming.Saleswererisingbriskly,profitmarginsw
A、AKoreanAmericanboy.B、A16-yearoldgirlinNewYork.C、AVietnameseyoungman.D、AJapanesecollegestudent.A
Weallhaveproblemsandbarriersthatblockourprogressorpreventusfrommovingintonewareas.Whenthathappens,consider
随机试题
下列成语,从庄子《秋水》一文中引申出来的有
虚劳患者,口干唇燥,不思饮食,大便燥结,甚则干呕,呃逆,面色潮红,舌红干少苔,脉细数。其证候是
企业用当年实现的利润弥补亏损时,应作的会计处理是()。
贾德根据“水下击靶”实验提出学习迁移理论的()
【材料一】一日,王教授应邀到甲机关举办一场关于职业道德与行为规范关系的专题讲座。会场里时常响起手机声,会议主持人不断地用手势提醒大家关闭手机,甚至打断王教授讲座,让大家保持会场秩序。次日王教授到乙机关举办同样的讲座,会场秩序井然,听讲座的每个人都自觉地
新民主主义文化,就是无产阶级领导的人民大众的反帝反封建的文化,即民族的科学的大众的文化。新民主主义文化是民族的,表明这种文化
求证:若向量a、b、c不共面,则向量a×b,b×c,c×a也不共面.
假设某计算机系统的内存大小为256KB,在某一时刻内存的使用情况表2-4(a)所示。此时,若进程顺序请求20KB,10KB和5KB的存储空间,系统采用(53)算法为进程依次分配后的内存情况表2-4(b)所示。
Inrecentyears,second-handtransactionhasbeenquitecommon.Inthemarket,youcanmeetmanysecond-handgoodssuchasbooks
A、ThenucleartransferB、TheprocesstakingDNAC、ThenormalreproductiveprocessD、ThecreationofcellsC克隆是个热门话题,有关克隆的文章无非谈论
最新回复
(
0
)