One of the key problems that the rain garden tries to deal with is the problem caused by too much water in the street. In a natural environment, a lot of rainwater is sent back into the air by plants. Much is also absorbed deep into the ground, and flows into streams and rivers. What happens in city environments can be completely different —— a large, amount of rainwater flows straight off the hard surfaces of roofs and roads. The harder the rain, the less likely it will be absorbed into the ground — floods are the result. Rainwater running off roads is often polluted.
The rain garden deals with living plants rather than hard surfaces. Plants are designed to hold water and release it slowly, either into the ground, to be absorbed by plant roots (and so eventually back up into the atmosphere) or to go down into the water table. Not only does the rain garden reduce the amount of water that flows onto the street, but it helps to clean it —plants are very good at breaking down pollutants(污染物).
53.What's the main idea of the first paragraph?
A.Explaining why there is a lack of rain at times.
B.Introducing several different patterns of rainfall.
C.Telling us how to avoid problems caused by rain.
D.Giving the idea that there are ways to manage rain water.
54.According to the second paragraph, “Rain Gardens" are likely to _____.
【2016届高考英语二轮复习阅读理解精选训练(33)外研版】相关文章:
★ 2016届高考英语二轮复习阅读理解精选训练(04)外研版
★ 辽宁省辽阳市2014高考英语单项选择一轮(暑假)训练(8)附答案
★ 河南省三门峡市2014高考英语一轮(暑假)基础训练(2)附答案
★ 四川省2016届高考英语一轮复习课时作业(34) Module 4 Music 外研版选修6
★ 山东省济宁市2016年高考英语复习:高一英语语法归纳总结
★ 安徽省淮南市2014高考英语一轮单项选择及文章训练(11)及答案
★ 贵州省贵阳市2014高考英语(新人教版)一轮阅读训练(22)附答案
★ 【三维设计】2017届高考英语(江苏专用)二轮复习课件:必修3 Unit 3《Back to the past》
★ 2014高考英语(新人教版)一轮基础训练(10)A、B卷(附答案或解析)
★ 安徽省淮南市2014高考英语一轮单项选择及文章训练(17)及答案
最新
2017-04-24
2017-04-24
2017-04-24
2017-04-24
2017-04-21
2017-04-21