2020年高考英语阅读押题预测(含答案).pdfVIP

阅读理解专练 2020 年高考英语阅读押题预测 (绝对精品文档，价值很高，值得下载打印练习 ) A A new study links heavy air pollution from coal burning to shorter lives in northern China. Researchersestimate that the half-billion people alive there in the 1990s will live an averageof 5 years less than their southern counterparts because they breathed dirtier air. China itself made the comparison possible: for decades, a now-discontinued government policy provided free coal for heating, but only in the colder north. Researchersfound significant differences in both particulate pollution of the air and life expectancy in the two regions. While previous studies have found that pollution affects human health, “the deeper and ultimately more important question is the impact on life expectancy, ” said one of the researchers, Michael Greenstone, a professor of environmental economics at Massachusetts Institute of Technology.“This study provides a unique setting (背景 ) to answer the life expectancy question becausethe (heating) policy dramatically changes pollution concentrations（浓度）”, Greenstone said in anemail. “Further, due to the low rates of migration in China in this period, we can know people exposure ’s over long time periods, ” he said. The policy gave free coal for fuel boilers to heat homes and offices to cities north of the Huai River, which divides China into north and south. It was in effect for much of the 1950— 1980 period of central planning, and, though discontinued after 1980, it has left a legacy （遗留问题） in the north of heavy coal burning, which releases particulate pollutants into the air that can