首页
登录
职称英语
If past is prologue, then it ought to be possible to draw some modest conclu
If past is prologue, then it ought to be possible to draw some modest conclu
游客
2025-01-11
20
管理
问题
If past is prologue, then it ought to be possible to draw some modest conclusions about the future from the wealth of data about America’s present. Will the crime rate continue to fall? Will single-person house-holds actually swamp the traditional family?
All projections, of course, must be viewed with a healthy dose of skepticism. Nonetheless, the urge to make sense of what lies ahead is inescapable. After the 1980 census, the Census Bureau decided for the first time to venture some forecasts of its own for the decades to come. Working from what America already knows about itself, the bureau’s experts and other demographers offer an irresistible, if clouded, crystal ball among their visions.
According to the census projections, female life expectancy will increase from 78.3 years in 1981 to 81.3 in the year 2005. The life expectancy of American men will grow from 70.7 for babies born in 1981 to 73.3 years in 2005. And by the year 2050, women will have a life expectancy of 83.6 years and men of at least 75.1.
Annual population growth will slow to almost nothing by 2050. In fact, the Census Bureau predicts that the rate of natural increase will be negative after 2035; only continuing immigration will keep it growing after that. The total population will be 268 million in 2000 and 309 million --an all-time high -- in 2050. After that, it will start to decline.
The American population will grow steadily older. From 11. 4 percent in 1981, the proportion of the population that is 65 and over will grow to 13. I percent in 2000 and 21.7 percent in 2050. The percentage of the population that lives beyond the age of 85 will more than quintuple over the same period. Meanwhile, the median age -- 30.3 in 1981-- will rise to 36.3 by 2000 and 41.6 50 years later.
When it comes to the quality of life, more prognosticators are fairly cautious. John Hopkins sociologist Andrew Cherlin observes that "as we enter the 1980s, the pace of change appears to have slowed. "For the next few decades, he predicts, there may be only modest swings in the marriage, birth and divorce rates -- giving society time to adjust to the new patterns that have formed in recent years. "We are in a plateau in our family patterns that will likely last a while," Cherlin maintains. Crime expert Alfred Blumstein, who foresees a drop in crime over the coming decade, predicts that the Northeast and Midwest, with stable but aging populations, will see the falloff first; for the South and Southwest, with their large proportions of younger people, the improvement will come less quickly.
选项
A、73.3
B、75.1
C、81.3
D、83.6
答案
B
解析
此题为跳读题。依据是第3段最后1句。此文略读的关键是迅速找到相关信息。
转载请注明原文地址:https://tihaiku.com/zcyy/3907553.html
相关试题推荐
Whathavescientistsconcludedthroughstudiesovertheyears?[br][originalte
Whathavescientistsconcludedthroughstudiesovertheyears?[originaltext]
Whathavescientistsconcludedthroughstudiesovertheyears?[br][originalte
Whathavescientistsconcludedthroughstudiesovertheyears?[br][originalte
Whathavescientistsconcludedthroughstudiesovertheyears?[originaltext]
Onceitwaspossibletodefinemaleandfemaleroleseasilybythedivision
Onceitwaspossibletodefinemaleandfemaleroleseasilybythedivision
Onceitwaspossibletodefinemaleandfemaleroleseasilybythedivision
Onceitwaspossibletodefinemaleandfemaleroleseasilybythedivision
Thesearchforwater—andpossiblelife—onMarsgotaboostthisweekasscie
随机试题
[originaltext]Thisbuildingwasconstructedabout20yearsago,wasn’tit?(A)R
PASSAGETHREE[br]AccordingtoBurson’ssurmise,whatisthenameofPushville
(1)Collegestudentsaremorestressedoutthaneverbefore—atleastaccording
天然饰面石材中,大理石板材的特点是()。A.吸水率大、耐磨性好 B.耐久
偶发噪声指偶然发生、发生的时间和间隔无规律、单次持续时间较短、强度较高的噪声.如
毛泽东带着队伍,走上________的山路,来到了井冈山,开始创建井冈山革命根据
(2018年真题)按照《证券投资基金销售管理办法》,下列可以作为基金代理销售资格
根据《期货市场客户开户管理规定》,期货公司应当按照中国期货保证金监控中心有限责任
()是第四代移动通信系统的核心。A.智能天线 B.多入多出 C.软件无线电
二次衬砌施工质量控制中,混凝土浇筑应()浇筑,各部位应对称浇筑振捣密实,且振捣
最新回复
(
0
)