首页
登录
学历类
In the 20th century the planet's populat
In the 20th century the planet's populat
题库
2022-08-02
53
问题
In the 20th century the planet's population'doubled twice.It will not double even once in the 1 century,because birth rates in much of the world have 2 steeply.But the number of people over 65 is set to 3 within just 25 years.This shift in the structure of the population is not as momentous as the 4 that came before.But it is more than enough to reshape the world economy.5 the UN's population 6,the standard source for demographic estimates,there are around 600m people aged 65 0r older 7 today.That is in itself remarkable;the author Fred Pearce claims it is 8 that half of all the humans who have ever been over 65 are alive today.But 9 a share of the total population,at 8%,it is not that 10 to what it was a few decades ago.By 2035,11,more than l.1 billion people-13%of the population-will be above the age of 65.This is a 12 result of the dropping birth rates that are slowing overall population growth;they mean there are 13 fewer younS people around.The"old-age dependency ratio"-the ratio of old people to those of working age-will 14 even faster.In 2010 the world had 16 people aged 65 and over for every 100 aduILs between the ages of 25 and 64,15 the same raLio it had in 1980.By 2035 the UN 16 that number to have risen to 26.In rich countries it will be much higher.Japan will have 69 0ld people for every 100 0f working age by 2035,Germany 66.17 America,which has a relaLively high 18 rate,will see its old-age dependency rate rise by more than 70%,t0 44.Developing counLries,19 today's ratio is much lower,will not see absolute levels rise that high;20 the proportional growth will be higher.Over the same time period the old-age dependency rate in China will more than double from 15 t0 36.Latin America wiU see a shift from 14 to 27.9选?A.inB.asC.aboutD.since
选项
A.in
B.as
C.about
D.since
答案
B
解析
词义辨析题。根据句子大意:但是9总人口比重来说,只有“作为,对于”比较合适,该空填人as“作为”,而[A]in在里面[C]about关于[D)since自从和句子语境无法融合,故本题答案为[B]。
转载请注明原文地址:https://tihaiku.com/xueli/2700597.html
本试题收录于:
英语二研究生题库研究生入学分类
英语二研究生
研究生入学
相关试题推荐
Withtheglobalpopulationpredictedto
Withtheglobalpopulationpredictedto
Withtheglobalpopulationpredictedto
Inthe20thcenturytheplanet'spopulat
Inthe20thcenturytheplanet'spopulat
Inthe20thcenturytheplanet'spopulat
Inthe20thcenturytheplanet'spopulat
Inthe20thcenturytheplanet'spopulat
Inthe20thcenturytheplanet'spopulat
Inthe20thcenturytheplanet'spopulat
随机试题
Whatdoesthepassagemainlydiscuss?[br]Theword"yet"inline16iscloses
请从所给的四个选项中,选择最合适的一个填在问号处,使之呈现一定的规律性。( )
劳务分包企业从事危险作业员工的意外伤害保险,其保险费用由()支付。A.工程承包
我国环境影响评价史发展到新的阶段的标志是()的颁布实施。A:《环境保护法(试行
共用题干 PricePlanningApricerepresentst
高血压合并冠心病时应首选哪一类药物A.血管紧张素转化酶抑制剂B.血管扩张剂C.中
国家统计局每年发布的统计公报运用许多重要统计指标和数据反映一年来国民经济和社会发
李某与用人单位发生争议,在人民调解委员会主持下达成了调解协议,如用人单位不履行该
政府预算分为平衡预算和差额预算的依据是( )。A.预算编制依据的内容和方法
关于地下连续墙的导墙作用的说法,正确的有()。A.存蓄泥浆 B.基准作用 C
最新回复
(
0
)