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    8．The United States estimates that about one out of every 10 people on the planet today is at least 60 years old．By 2050，it's projected to be one out of 5．This means that not only will there be more old people，but there will be relatively fewer young people to support them．
    Professor Richard Lee of the University of California at Berkeley says this aging of the world has a great effect on economics．"Population aging increases the concentration of population in the older ages and therefore it is costly，"he said．
    Aging populations consume （消耗） more and produce less．With more people living longer，it could get expensive．But Mr．Lee says with continuing increases in worker productivity and smart planning，it can be manageable．
    Societies have different methods for caring for the elderly，but each carries a cost．Generally，there are three types of support．Seniors can live off the wealth they gained when they were younger．They can rely on their family to take care of them，or they can rely on the government．
    In industrialized nations，governments created publicly-funded （公共资助的） support systems．These worked relatively well until recent years，when aging population growth in places like the United States and Western Europe began to gradually weaken the systems'finances．These nations now face some tough choices．Mr．Lee says the elderly in some of these countries must either receive less money，retire later or increase taxes to make the system continuable．
    Most developing nations haven't built this type of government-funded support，but have instead relied on families to care for their elderly．These nations also generally have a much younger population，which means their situation is not as urgent as more developed nations．But Mr．Lee says that doesn't mean they can ignore the issue．"Third World countries should give very careful thought to this process，to population aging and how it may affect their economies-now，before population aging even becomes an issue，"he explained．
    29．"Aging"in this text meansD．
    A．there are more young people than old people
    B．an increasing number of old people are dying
    C．more and more young people are growing old
    D．the percentage of old people in the world is increasing
    30．What is Professor Richard Lee's attitude towards population aging？B
    A．Indifferent．
    B．Negative．
    C．Optimistic．
    D．Worried．
    31．The publicly-funded support systems in industrialized nationsA．
    A．are facing the risk of failing
    B．have failed to provide support for the old
    C．will be replaced by other support systems
    D．have greatly affected the nations'economies
    32．We can infer from the text that developing nationsB．
    A．don't see population aging as an issue
    B．should prepare for population aging．
    C．are facing urgent situations of population aging
    D．have better ways to deal with population aging．

    分析 本文主要讲述了发达国家现在正面临的人口老龄化问题，并提醒发展中国家提前为将来可能会出现的老龄化问题做好准备．

    解答 29．D 词义猜测题．根据文章第一段The United States estimates that about one out of every 10 people on the planet today is at least 60 years old．By 2050，it's projected to be one out of 5．This means that not only will there be more old people，but there will be relatively fewer young people to support them现在美国的老年人占十分之一，到2050年，将会占到百分之二十．第二段中的aging就是指全世界老龄人口越来越多，结合选项，故选D
    30．B 态度观点题．根据文章内容Mr．Lee says the elderly in some of these countries must either receive less money，retire later or increase taxes to make the system continuable．以及Most developing nations haven't built this type of government-funded support，but have instead relied on families to care for their elderly．由此可知，Mr．Lee 认为发达国家面临着问题，发展中国家也即将面临这样的问题．而老龄化问题对国家的影响很大，所以作者持消极态度，结合选项，故选B
    31．A  推理题．根据文章内容These worked relatively well until recent years，when aging population growth in places like the United States and Western Europe began to gradually weaken the systems'finances．These nations now face some tough choices．由此可知，工业社会国家的保障体系现在也面临着很多财政方面的负担，也要面对艰难的选择，结合选项，故选A
    32．B 推理题．根据文章内容But Mr．Lee says that doesn't mean they can ignore the issue．"Third World countries should give very careful thought to this process，to population aging and how it may affect their economies-now，before population aging even becomes an issue，"he explained由此可知，Mr．Lee 提醒，虽然现在的发展中国家的老龄化问题还没那么严重，但是政府和国家必须要提前做好准备．结合选项，故选B

    点评 本文是新闻报道类阅读理解．做这类题材阅读理解时要求考生对文章通读一遍，做题时结合原文和题目有针对性的找出相关语句进行仔细分析，结合选项选出正确答案．推理判断题也是要在抓住关键句子的基础上合理的分析才能得出正确答案，切忌胡乱猜测，一定要做到有理有据

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