2014
高考英语阅读理解冲刺提升全程训练（1）及答案阅读理解 (2013•安徽，b) using too much water or throwing rubbish into our rivers are clear ways that humans can put our water supply in danger, but we also affect our water supply in less obvious ways. you may wonder how paving(铺砌)a road can lead to less useable fresh water. a major part of the water we use every day is groundwater. groundwater does not come
