2014
高考英语阅读理解精品练习（3）及答案（解析） c7 [2013•安徽卷] 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 usable fresh water. a major part of the water we use every day is groundwater. groundwater does not come from lakes or rivers.it comes from
