In the developed world, average life expectancy is increasing. What problems will this cause for individuals and society? Suggest some measures that could be taken to reduce the impact of ageing populations.
翻译：在发达国家，平均预期寿命正在增加。 这会对个人和社会造成什么问题？ 建议采取什么措施来减少老龄化人口造成的影响。
开头段：背景引入 + 话题介绍。
背景句：It is true that people in industrialised nations can expect to live longer than ever before.
话题介绍：Although there will undoubtedly be some negative consequences of this trend, societies can take steps to mitigate these potential problems.
### 主体段 1
主题句：As people live longer and the populations of developed countries grow older, several related problems can be anticipated.
平行列举1：The main issue is that there will obviously be more people of retirement age who will be eligible to receive a pension. The proportion of younger, working adults will be smaller, and governments will therefore receive less money in taxes in relation to the size of the population. In other words, an ageing population will mean a greater tax burden for working adults. （递进解释）
平行列举2：Further pressures will include a rise in the demand for healthcare, and the fact young adults will increasingly have to look after their elderly relatives.
### 主体段 2
主题句：There are several actions that governments could take to solve the problems described above.
平行列举：**Firstly**, a simple solution would be to increase the retirement age for working adults, perhaps from 65 to 70. Nowadays, people of this age tend to be healthy enough to continue a productive working life. A **second** measure would be for governments to encourage immigration in order to increase the number of working adults who pay taxes. **Finally**, money from national budgets will need to be taken from other areas and spent on vital healthcare, accommodation and transport facilities for the rising numbers of older citizens.
In conclusion, various measures can be taken to tackle the problems that are certain to arise as the populations of countries grow older.
some negative consequences of this trend 这个趋势的消极影响
take steps 采取措施
social life 社会生活
mitigate these potential problems 缓解潜在问题
developed countries 发达国家
several related problems 很多涉及的问题
be eligible to 有资格做
receive a pension 收到退休金
an ageing population 老龄人口
a greater tax burden for 对……有很重的税
retirement age 退休年龄
tend to be healthy enough 往往足够健康
pay taxes 交税
national budgets 国家预算
vital healthcare 至关重要的医疗服务
transport facilities 交通工具
older citizens 年老的居民