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  3. Americans’ pride and faith of their economic system,【C1】________that it provides opportunities for all citizens to have good liv

Americans’ pride and faith of their economic system,【C1】________that it provides opportunities for all citizens to have good liv

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问题     Americans’ pride and faith of their economic system,【C1】________that it provides opportunities for all citizens to have good lives, are【C2】________ by the【C3】________ that poverty persists in many parts of the country.
    Government anti-poverty efforts have made some progress but have not eradicated the problem.【C4】________, periods of strong economic growth, which bring more jobs and higher wages, have【C5】________ poverty but have not【C6】________ it entirely.
    The federal government【C7】________poverty line as a minimum【C8】________of income【C9】________for basic maintenance of a family of four. This amount may fluctuate【C10】________the cost of living and the location of the family. In 1998, a family of four with an annual income below $16,530 was classified【C11】________ living in poverty.
    The percentage of people living below poverty line dropped from 22.4 percent in 1959 to 11.4 percent in 1978. But【C12】________ , it has fluctuated in a fairly narrow range. In 1998, it stood at 12.7 percent.
    【C13】________ , the overall figures mask much more severe pockets of poverty. In 1998, more than one-quarter of all African-Americans lived in poverty; though【C14】________high, that figure did represent an improvement from 1979 when 31 percent of blacks were officially classified as poor.
    There are【C15】________estimations on the accuracy of official poverty figures. Some analysts have suggested that the official poverty figures【C16】________the real【C17】________of poverty because they measure only cash income and exclude certain government assistance programs such as Food Stamps. Others point out, however, that these programs【C18】________cover all of a family’s food or health care needs.【C19】________others point out that people at the poverty line sometimes receive cash income from【C20】________work and in the underground sector of economy which is never recorded in official statistics.
【C12】
选项 A、from now on
B、then
C、since then
D、long before
答案C
解析 本填空考查惯用词组，并且这些词组都表示时间关系；填空所在的原文句子中有一系列的时间线索。如下：The percentage of people living below poverty line dropped from 22．4 percent in 1 959 to 11．4 percent in1978．But _________，it has fluctuated in a fairly narrow range．In 1998，it stood at 12．7 percent．这些时间线索是明显衔接的，本填空的选项如D)long before(很久以前)就完全不合适了；A)from now on(从现在开始)也不对，因为这里没有now的概念；再加上本填空之后的原文句子的信息为：it has fluctuated in a fairly narrow range，使用了完成时态，只有选项C)since then是对的，所以最佳答案为选项C)since then。
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