首页
登录
学历类
In the 20th century the planet's populat
In the 20th century the planet's populat
考试题库
2022-08-02
23
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 27.11选?A.whereasB.howeverC.thereforeD.likewise
选项
A.whereas
B.however
C.therefore
D.likewise
答案
B
解析
逻辑关系题。[A]whereas而;[B]however然而;[C]therefore因此;[D]likewise同样地。上文提到几十年来老年人口比重没有什么变化,占8%;本句则提到2035年和13%这样的数据,和上文形成对比,故可以判断上下文逻辑为转折,即[B]为答案。尽管选项[A]也有“但是,然而”的意思,但是它是一个连词,故从语法角度上来说,只有however正确。故本题答案为[B]。
转载请注明原文地址:https://tihaiku.com/xueli/2700598.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
Inthe20thcenturytheplanet'spopulat
Inthe20thcenturytheplanet'spopulat
Inthe20thcenturytheplanet'spopulat
Inthe20thcenturytheplanet'spopulat
Inthe20thcenturytheplanet'spopulat
Inthe20thcenturytheplanet'spopulat
Inthe20thcenturytheplanet'spopulat
Inthe20thcenturytheplanet'spopulat
Inthe20thcenturytheplanet'spopulat
随机试题
[originaltext]M:(5)It’ssocoldnow,butthismorningitwassohotandsunny.
依据《消费者权益保护法》的规定,消费者争议可以通过以下途径解决()A.消费者
医疗机构应当对传染病病人或者疑似传染病病人提供A.医疗救护 B.现场救援 C
不属于湿法制粒的方法是A.挤出制粒 B.流化沸腾制粒 C.滚压式制粒 D.
患者,男性,30岁。因咳嗽1个月余,伴低热、痰中带血7天就诊。肾移植术后1年。胸
老师在排练下面谱例中的合唱片段时,正确的指挥手势是()。 A.采用六拍子的手
中药处方中直接写药材的正名或炒制时,即付酒制的是A.穿山甲 B.王不留行
李某,男,8岁,发热4天,体温39.6℃,伴意识障碍、抽搐、脑膜刺激征,考虑乙型
慢性消耗性疾病时,下列哪些细胞可出现脂褐素?( )。A.肝细胞 B.胃黏膜上
会计信息系统是ERP系统的一个子系统。()
最新回复
(
0
)