托福阅读原文分析—TPO3 奥加拉拉蓄水层的枯竭.docx

托福阅读原文分析—TPO3 奥加拉拉蓄水层的枯竭 托福阅读原文分析—TPO3奥加拉拉蓄水层的枯竭 TPO是托福备考圣经，但是并不是有“圣经”就能完全把握托福考试还要看大家怎么去利用这份资料关于TPO阅读，托福小编希望最大限度地利用这些ETS提供的阅读文章在文章中，找到那些生词，长难句；分析文章结构真正把它作为一份备考资料，而不是做题工具今天托福小编分享给大家的是对TPO3Depletion of the Ogallala Aquifer的文章详细分析一起学习吧！ Depletion of the Ogallala Aquifer 奥加拉拉蓄水层的枯竭 1.The vast grasslands of the High Plains in the central United States were settled by farmers and ranchers in the1880s.This region has a semiarid climate,and for50years after its settlement,it supported a low-intensity agricultural economy of cattle ranching and wheat farming.In the early twentieth century,however,it was discovered that much of the High Plains was underlain by a huge aquifer(a rock layer containing large quantities of groundwater).This aquifer was named the Ogallala aquifer after the Ogallala Sioux Indians,who once inhabited the region. 19世纪80年代，在美国中部北美大平原的广阔草原上定居着农场主们和牧场主们。

这里有着半干旱的气候，在人们定居50年后，它支撑了一个以畜牧业和小麦种植为主的低密度农业经济然而，在20世纪初，人们发现北美大平原的地下大部分是巨大的蓄水层(含有大量地下水的岩层)这个蓄水层因曾经在这里定居过的奥加拉拉苏族印第安人而得名，被称作奥加拉拉蓄水层 奥加拉拉蓄水层的发现 2.The Ogallala aquifer is a sandstone formation that underlies some583,000square kilometers of land extending from northwestern Texas to southern South Dakota.Water from rains and melting snows has been accumulating in the Ogallala for the past30,000years. Estimates indicate that the aquifer contains enough water to fill Lake Huron,but unfortunately,under the semiarid climatic conditions that presently exist in the region, rates of addition to the aquifer are minimal,amounting to about half a centimeter a year. 奥加拉拉蓄水层属于砂岩结构，在从德克萨斯州西北到南达科塔州南部的地下绵延了58.3万平 托福阅读原文分析—TPO3奥加拉拉蓄水层的枯竭 TPO是托福备考圣经，但是并不是有“圣经”就能完全把握托福考试。

还要看大家怎么去利用这份资料关于TPO阅读，托福小编希望最大限度地利用这些ETS提供的阅读文章在文章中，找到那些生词，长难句；分析文章结构真正把它作为一份备考资料，而不是做题工具今天托福小编分享给大家的是对TPO3Depletion of the Ogallala Aquifer的文章详细分析一起学习吧！ Depletion of the Ogallala Aquifer 奥加拉拉蓄水层的枯竭 1.The vast grasslands of the High Plains in the central United States were settled by farmers and ranchers in the1880s.This region has a semiarid climate,and for50years after its settlement,it supported a low-intensity agricultural economy of cattle ranching and wheat farming.In the early twentieth century,however,it was discovered that much of the High Plains was underlain by a huge aquifer(a rock layer containing large quantities of groundwater).This aquifer was named the Ogallala aquifer after the Ogallala Sioux Indians,who once inhabited the region. 19世纪80年代，在美国中部北美大平原的广阔草原上定居着农场主们和牧场主们。

这里有着半干旱的气候，在人们定居50年后，它支撑了一个以畜牧业和小麦种植为主的低密度农业经济然而，在20世纪初，人们发现北美大平原的地下大部分是巨大的蓄水层(含有大量地下水的岩层)这个蓄水层因曾经在这里定居过的奥加拉拉苏族印第安人而得名，被称作奥加拉拉蓄水层 奥加拉拉蓄水层的发现 2.The Ogallala aquifer is a sandstone formation that underlies some583,000square kilometers of land extending from northwestern Texas to southern South Dakota.Water from rains and melting snows has been accumulating in the Ogallala for the past30,000years. Estimates indicate that the aquifer contains enough water to fill Lake Huron,but unfortunately,under the semiarid climatic conditions that presently exist in the region, rates of addition to the aquifer are minimal,amounting to about half a centimeter a year. 奥加拉拉蓄水层属于砂岩结构，在从德克萨斯州西北到南达科塔州南部的地下绵延了58.3万平 。