新闻资讯-雅思小作文流程图解析及范文：房屋防洪

　　在雅思备考的过程中，要想写作取得优势，多看一些范文是十分有必要的，新东方网特为大家收集整理了雅思小作文流程图解析及范文：房屋防洪。更多雅思报名官网的最新消息，最新、最专业的雅思备考资料，新东方网将第一时间为大家发布。下面一起来学习一下吧!

　　The diagrams below show how houses can be protected in areas which are prone to flooding.

　　范文:

　　The diagrams compare two different methods of defence for homes which are at risk of being flooded.

　　The key difference between the diagrams is that they show flood protection with and without a stopbank. In either case, the at-risk home is raised on stilts above ground level.

　　The first diagram shows how a stopbank acts as a flood barrier to stop river water from flooding homes. The stopbank is a small mound of land next to the river that is higher than the 100-year flood level, and prevents the river from bursting its banks. Nearby houses can be built on stilts to prevent flooding from rainwater, and a floodgate beneath the stopbank can be opened to allow this ‘ponding’ to drain off into the river.

　　When there is no stopbank, as shown in the second diagram, there will be nothing to stop the river from flooding. In this case, the solution is to put buildings on stilts. The height of the stilts is measured so that the floor of the house is 300mm above the 100-year flood level. This measurement is called the ‘freeboard’.

　　以上是新东方网给大家带来的雅思小作文流程图解析及范文：房屋防洪。希望能够对大家有所帮助。希望大家认真积极的备考，早日取得优异的成绩，更多精彩，欢迎随时关注新东方网!

　　编辑推荐：

　　，

（兼职编辑：sunshuqing）