托福阅读修辞目的题是阅读考试中比较常见的一种题型，tpo则是托福阅读备考最权威的材料，所以托福小编综合二者，为大家集中整理了tpo阅读中考察的修辞目的题及其对应的解析，供大家参考使用。本文带来的是TPO28-1的修辞目的题，一起来看看吧。
TPO28-1 Groundwater
Paragraph 1: Most of the world’s potable water----freshwater suitable for drinking----is accounted for by groundwater, which is stored in the pores and fractures in rocks. There is more than 50 times as much freshwater stored underground than in all the freshwater rivers and lakes at the surface. Nearly 50 percent of all groundwater is stored in the upper 1,000 meters of Earth. At greater depths within Earth, the pressure of the overlying rock causes pores and cracks to close, reducing the space that pore water can occupy, and almost complete closure occurs at a depth of about 10 kilometers. The greatest water storage, therefore, lies near the surface.
1.In paragraph 1, why does the author mention “the pressure of the overlying rock”?
O To show how water can be forced deep under Earth’s surface
O To show why groundwater is more plentiful than surface freshwater
O To correct a commonly made error about the location of groundwater
O To explain why most groundwater lies near Earth’s surface
解析：在高亮部分的描写之后，本段的最后一句出现了，therefore。这里也是在说the pressure of the overlying rock导致的结果，也就是文章提到它的目的。其结果是，大部分的水储都在比较表面的地方。所以其目的就是要解释为什么水都在表面的地方。
[1] 世界上绝大部分饮用水----可以饮用的淡水----都是地下水，它们储藏在岩石孔隙和裂缝中。储藏于地下的淡水是地表淡水河流和湖泊中总水量的50倍。大约50%的地下水存在于地下深1000m以内的地层中。随深度增加，上覆岩层压力使岩石孔隙和裂缝闭合，减少了水的储存空间，而超过10公里深的地下孔隙几乎全部闭合。因此绝大部分水储存于接近地表的地层中。
以上就是托福阅读TPO28-1中的修辞目的题及其解析，大家可以在备考的时候参考复习，希望能够帮助大家的考前准备。最后前程百利祝大家都能取得理想的托福考试成绩。
您还可能关注：
