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
42
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
Itisreportedthatthepolicewillsoonlook______thecaseofthetwomissingc
Chicago:SomeBigPlacestoSeeinthe"CityoftheBigShoulders"
对行政领导者来说,职位高低是拥有权力大小、承担责任轻重的决定性因素。()
刘先生,33岁,是合资企业的部门负责人,每天工作繁忙且压力大,一日三餐不规律。早
原发性闭经是指A.年龄超过16岁,第二性征已发育,无月经来潮;或年龄超过14岁,
以募集设立方式设立股份有限公司的,发起人认购股份不少于总数的(),法律、行政法规
以下选项是从左边图片中截取出来的是()。
奖金的特点有( )。A.公平的调节性 B.很强的灵活性 C.个体的差异性
我们通常说的晕车和晕船,是因为体内平衡感受器受到了刺激,使人感到眩晕和不适,这个
某区法院判决撤销某区公安局的处罚决定,返还当事人甲2000元罚款,要求在判决生效
最新回复
(
0
)