2011自选综合模拟1.doc

数 学 题号:03 “数学史与不等式选讲”模块(10分) 已知大于1的正数满足 （1）求证： （2）求的最小值。 题号：05 阅读理解 （分两节，共5小题，每小题2分，共10分阅读下面短文，并根据短文后的要求答题。 , about one in every 10 young male high school dropouts(辍学) is in jail or juvenile detention(拘留), compared with one in 35 young male high school graduates, according to a new study of the effects of dropping out of school in America. __① Nearly one in four young black male dropouts incarcerated(监禁) on an average day. Researchers used government data to carry out the study, which tracks the employment, workplace, parenting and criminal justice experiences of young high school dropouts. The dropout rate is driving the nation’s increasing prison population, and it’s a drag on America’s economic competitiveness. _ ②_ The report puts the collective cost to the nation over the working life of each high school dropout at $292,000. That figure took into account lost tax revenues, since dropouts earn less and therefore pay less in taxes than high school graduates. It also includes the costs of providing food stamps and other aid to dropouts and of incarcerating those who turn to crime. Young female dropouts were nine times more likely to have become single mothers than young women who went on to earn college degrees, the report said, citing census data for 2006 and 2007. _ ③ Because large numbers of young men have dropped out of school and are jobless year round. As a result, young women do not view them as having the money to support a family. Many years ago, you can find young people in Gary would quit school in senior year and go to work at U.S. Steel and make a good living, and young guys in Michigan would go to work in an auto plant. You just can’t do that anymore. __④__ 第一节 根据短文内容，从A、B、C、D、E中选出最适合放入短文空缺处的选项，并将序号及相应答案写在答题纸上。选项中有一项是多余选项。 A. Today, you have a lot of dropouts who are jobless year round. B. The picture is even bleaker（凄惨）for African-Americans. C. This report makes it clear that every American pays a cost when a young person leaves school with