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
26
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 27.18选?A.fertilityB.marriageC.mortalityD.divorce
选项
A.fertility
B.marriage
C.mortality
D.divorce
答案
A
解析
词义辨析题。通过上下文的数据分析可知,跟日本和德国相比,美国老年人比重相对较低,可见美国有较多的青年人口,即美国出生率比较高。将四个选项分别代人句中为:[A]fertility rate出生率;[B]marriage rate结婚率;[C]mortality rate死亡率;[D]divorce rate离婚率。答案为[A]。
转载请注明原文地址:https://tihaiku.com/xueli/2700614.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
LeonarddaVinci,thefamousItalianpainter,wasalsodistinguishedforhiscon
麦格雷戈“X理论-Y理论”中的()认为人的本性是坏的,一般都有好逸恶劳、尽可能
投资者融资买入证券时,融资保证金比例不得低于( )。A.120% B.100
某作家的长篇小说在一家晚报上连载3个月,每月收入3000元。则这三个月所获稿酬应
站用变压器进行特殊巡视时,应检查哪些项目?()A.外观清洁,无漏油、变形
根据《故宫》片段回答问题: “紫禁城”这个名字就和中国古代哲学和天文学有关
按预后的好坏,霍奇金病四型的排列顺序应为( )。A.混合细胞型、淋巴细胞消减型
呼吸链中可从复合体Ⅰ接受电子,还可从复合体Ⅱ接受电子的是A.FAD B.CoQ
公民、法人或者其他组织不能申请行政复议的事项有()。A.人力资源社会保障部门做
参与经典途径激活补体的是( )。A.IgE B.LPS C.IgD D.
最新回复
(
0
)