2014
高考英语阅读理解巩固精品练习题(17)及答案 阅读理解(e) against the supposition (猜想)that forest fires in alaska, canada and siberia warm the climate, scientists have discovered that cooling may occur in areas where burnt trees allow more snow to mirror more sunlight into space. this finding suggests that taking steps to prevent northern forest fires to limit the release of greenhouse gases may warm the