雅思小作文题目中给出的是流程图，介绍了在易受洪水影响的地区如何保护房屋，考生需要根据所给出的图表进行描述。接下来小编为大家带来关于这个题目的Simon考官范文，供大家参考。
题目：The diagrams below show how houses can be protected in areas which are prone to flooding.
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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’.
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