首页
登录
职称英语
Going Forth, The Nations Multiply Unevenly Despite wars, famines, and ep
Going Forth, The Nations Multiply Unevenly Despite wars, famines, and ep
游客
2023-12-21
6
管理
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 are 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 child bearing 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 motherhood 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 court 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, hi 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 121 million 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.
选项
A、will have the largest world population by 2020
B、have the highest reproductive rate in the world
C、are only modestly affected by AIDS
D、will have increasingly long life spans
答案
B
解析
细节题。从文章的第三段可以看出亚萨哈拉非洲国家的人口出生率是世界上最高的。
转载请注明原文地址:https://tihaiku.com/zcyy/3292017.html
相关试题推荐
Whatdoesitmeantorelax?Despite【C1】______thousandsoftimesduringtheco
Whatdoesitmeantorelax?Despite【C1】______thousandsoftimesduringtheco
Whatdoesitmeantorelax?Despite【C1】______thousandsoftimesduringtheco
Whatdoesitmeantorelax?Despite【C1】______thousandsoftimesduringtheco
Whatdoesitmeantorelax?Despite【C1】______thousandsoftimesduringtheco
Whatdoesitmeantorelax?Despite【C1】______thousandsoftimesduringtheco
Whatdoesitmeantorelax?Despite【C1】______thousandsoftimesduringtheco
Whatdoesitmeantorelax?Despite【C1】______thousandsoftimesduringtheco
Whatdoesitmeantorelax?Despite【C1】______thousandsoftimesduringtheco
Whatdoesitmeantorelax?Despite【C1】______thousandsoftimesduringtheco
随机试题
[originaltext]Aseveryschoolboyknows,themostimportantrawmaterialsof
免疫学诊断方法的敏感性是指A.在已知阴性者中检测出阴性的百分率 B.在已知阳性
旅游大巴司机张某在倒车时操作失误,撞上李某新买的轿车,致其严重受损,李某因处理事
患者男性,43岁,因慢性心功能不全致下肢水肿,经强心苷治疗,心功能得到改善,但水
1971年,周恩来在接见来访的美国乒乓球代表团时说:"你们这次来,打开了两国人民
国外课程设计的基本模式包括( )。A.肯普的教学设计程序 B.罗斯的教学设计
客户信息可以分为财务信息和非财务信息,下列属于财务信息的是()。A:客户当前的收
投资者应当遵守()的原则,承担金融期货交易的履约责任。A:适当分摊 B:
除三角形外,旗形和圆弧形是两个有代表性的持续整理形态。()
下列支出中,在计算企业所得税应纳税所得额时,准予扣除的是( )。
最新回复
(
0
)