A.pose B.issue C.investment D.material E . expected F . prompt G . increased H . likely I . contributes J . limits K . encourage L . individuals M . social N . double O . paid Population aging-the increase of the share of older individuals in a society due to fertility(生育率)declines and rising life expectancy-is becoming a global trend . By 2050,the number of people aged 60 and older will be more than 1) _from its current levels,reaching around 2 billion . While Europe was the first global region to embark on a demographic transition,most of the 2) _ growth in the number of older people by 2050 will come from developing countries . Population aging will 3) _lead to declining labor forces,lower fertility,and an increase in the age dependency ratio,the ratio of working-age to old-age 4) _. To illustrate,while there were 10 workers for every person older thgn 64 in the world in 1970,the expected number in 2050 is only four;it will even be less than two in some European countries . Aging populations 5) _a challenge to the fiscal(财政的)and macroeconomic stability of many societies through 6) _government spending on pension,healthcare,and social benefits programs for the elderly . This may hurt economic growth and overall quality of life if governments need to divert public spending from education and infrastructure 7) _to finance programs for the elderly . In addition,the recent economic crisis not only increased the demand for social protection but it also drew attention to population aging 8) _as many countries faced unsustainable public debts . In many nations,the already-high public spending 9) _the fiscal
A.pose B.issue C.investment D.material E . expected F . prompt G . increased H . likely I . contributes J . limits K . encourage L . individuals M . social N . double O . paid
Population aging-the increase of the share of older individuals in a society due to fertility(生育率)declines and rising life expectancy-is becoming a global trend . By 2050,the number of people aged 60 and older will be more than 1) _from its current levels,reaching around 2 billion . While Europe was the first global region to embark on a demographic transition,most of the 2) _ growth in the number of older people by 2050 will come from developing countries . Population aging will 3) _lead to declining labor forces,lower fertility,and an increase in the age dependency ratio,the ratio of working-age to old-age 4) _. To illustrate,while there were 10 workers for every person older thgn 64 in the world in 1970,the expected number in 2050 is only four;it will even be less than two in some European countries .
Aging populations 5) _a challenge to the fiscal(财政的)and macroeconomic stability of many societies through 6) _government spending on pension,healthcare,and social benefits programs for the elderly . This may hurt economic growth and overall quality of life if governments need to divert public spending from education and infrastructure 7) _to finance programs for the elderly . In addition,the recent economic crisis not only increased the demand for social protection but it also drew attention to population aging 8) _as many countries faced unsustainable public debts . In many nations,the already-high public spending 9) _the fiscal
题目解答
答案
1）L
考查名词。individuals 个人。By 2050,the number of people aged 60 and older will be more than individuals from its current levels,reaching around 2 billion . 到2050年，60岁及以上的人口将比目前的水平多，达到约20亿。
2）E
考查形容词。expected 预期的。While Europe was the first global region to embark on a demographic transition,most of the expected growth in the number of older people by 2050 will come from developing countries .虽然欧洲是第一个开始人口转型的全球地区，但到2050年，预计老年人数量的大部分增长将来自发展中国家。
3）H
考查副词。likely 可能。Population aging will likely lead to declining labor forces,lower fertility,and an increase in the age dependency ratio,人口老龄化可能导致劳动力下降、生育率下降和年龄抚养比上升。
4）B
考查名词。issue 问题。the ratio of working-age to old-age issue 劳动年龄与养老问题的比例。
5）A
考查动词。pose 造成。Aging populations pose a challenge to the fiscal and macroeconomic stability of many societies人口老龄化对财政构成挑战(则政的)以及许多社会的宏观经济稳定
6）G
考查形容词。increased 增加的。through increased government spending on pension,healthcare,and social benefits programs for the elderly .通过增加政府在养老金、医疗保健和老年人社会福利项目上的支出。
7）O
考查动词。paid 支付。This may hurt economic growth and overall quality of life if governments need to divert public spending from education and infrastructure paid to finance programs for the elderly . 如果政府需要将公共支出从教育和基础设施中转移出来，用于资助老年人项目，这可能会损害经济增长和整体生活质量。
8）C
考查名词。investment 投资。In addition,the recent economic crisis not only increased the demand for social protection but it also drew attention to population aging investment as many countries faced unsustainable public debts . 此外，最近的经济危机不仅增加了对社会保护的需求，而且还引起了人们对人口老龄化投资的关注，因为许多国家面临着不可持续的公共债务。
9）I
考查动词，contributes 增加，贡献。In many nations,the already-high public spending contributes the fiscal 在许多国家，已经很高的公共支出为财政贡献了力量。
解析
题目要求我们从给定的选项中选择合适的单词填入空白处，以使句子通顺且符合逻辑。我们需要根据上下文和单词的含义来选择正确的单词。
步骤 2：分析每个空白处的语境
1) "By 2050, the number of people aged 60 and older will be more than _ from its current levels, reaching around 2 billion." 这里需要一个表示数量增加的词，"double"（翻倍）符合语境。
2) "While Europe was the first global region to embark on a demographic transition, most of the _ growth in the number of older people by 2050 will come from developing countries." 这里需要一个表示预期的词，"expected"（预期的）符合语境。
3) "Population aging will _ lead to declining labor forces, lower fertility, and an increase in the age dependency ratio, the ratio of working-age to old-age _." 这里需要一个表示可能性的词，"likely"（可能）符合语境。
4) "the ratio of working-age to old-age _." 这里需要一个表示问题的词，"issue"（问题）符合语境。
5) "Aging populations _ a challenge to the fiscal and macroeconomic stability of many societies through _ government spending on pension, healthcare, and social benefits programs for the elderly." 这里需要一个表示造成挑战的词，"pose"（造成）符合语境。
6) "through _ government spending on pension, healthcare, and social benefits programs for the elderly." 这里需要一个表示增加的词，"increased"（增加的）符合语境。
7) "This may hurt economic growth and overall quality of life if governments need to divert public spending from education and infrastructure _ to finance programs for the elderly." 这里需要一个表示支付的词，"paid"（支付）符合语境。
8) "In addition, the recent economic crisis not only increased the demand for social protection but it also drew attention to population aging _ as many countries faced unsustainable public debts." 这里需要一个表示投资的词，"investment"（投资）符合语境。
9) "In many nations, the already-high public spending _ the fiscal." 这里需要一个表示贡献的词，"contributes"（贡献）符合语境。
步骤 3：填入合适的单词
根据上述分析，我们可以填入合适的单词。