托福阅读笔记。说到托福阅读备考，TPO是必不可少的备考神器，通过TPO练习来更好的适应阅读考试的节奏。本文小编带来的是TPO28 Groundwater的学习笔记，希望能够与正在备考的大家一起进步。
TPO28 Groundwater
文章题材：自然学科——地下水
常见词汇：
plentiful ['plentifəl] adj. 丰富的，多的，充裕的
fracture ['fræktʃə] n. 破碎，骨折vt. 破碎，破裂
vary ['vɛəri] v. 变化，改变，使多样化
essential [i'senʃəl] n. 要素，要点adj. 必要的，重要的
measure ['meʒə] n. 措施，办法，量度，尺寸v. 测量，量
contain [kən'tein] vt. 包含，容纳，克制，抑制vi. 自制
glacial ['gleisiəl] adj. 冰的，冰川(期)的，非常冷的，缓慢的
stream [stri:m] n. (人，车，气)流，水流，组v. 流动，
resistance [ri'zistəns] n. 抵抗力，反抗，反抗行动;阻力，电阻;反对
consequence ['kɔnsikwəns] n. 结果，后果
易错题解析：
Paragraph 2: Groundwater is stored in a variety of rock types. A groundwater reservoir from which water can be extracted is called an aquifer. We can effectively think of an aquifer as a deposit of water. Extraction of water depends on two properties of the aquifer: porosity and permeability. Between sediment grains are spaces that can be filled with water. This pore space is known as porosity and is expressed as a percentage of the total rock volume.
6.According to paragraph 2, what is the relationship between permeability and porosity?
O The more pores a rock has, the higher its porosity but the lower its permeability.
O Rocks with many internal spaces that are not connected with each other will have high porosity but low permeability.
O If water flows through a rock easily, it has high permeability but low porosity.
O Rocks that have high permeability have high porosity and vice versa.
题型：推论题。答案是(B)
解析：对应本段第一句和第二句，即sorting和compaction会共同影响permeability，结合上一段的最后一句理解，多孔性分为两种情况，一种是孔多但是互相不联通，这时permeability不高;另一种是孔多并且互相联通，那么porosity高的同时permeability也会高。因此选择B。其他几个选项的叙述都不完整。这两者的关系并不是简单的正比例。
Paragraph 5: If the water table intersect the land surface, groundwater will flow out onto the surface at springs, weather to be collected there or to subsequently flow farther along a drainage. Groundwater commonly collects in stream drainages but may remain entirely beneath the surface of dry stream-beds in arid regions. In particularly wet years, short stretches of an otherwise dry stream-bed may have flowing water because the water table rises to intersect the land surface.
11. Which of the sentences below best expresses the essential information in the highlighted sentence in the passage? Incorrect choices change the meaning in important ways or leave out essential information.
O Groundwater only flows out of the ground if the water table intersects the land surface.
O If the land surface and the water table intersect, groundwater can flow underground.
O Groundwater may be drained if springs occur where the water table intersects the land surface.
O Where the water table meets the land surface, groundwater flows out through surface springs.
题型：句子简化题。答案是(D)
解析：A选项缺少了spring这个条件;B，C选项不正确。D包含了原文所有的主干部分，正确。
以上就是小编带来的托福阅读笔记之TPO28 Groundwater,希望能够和备考的大家一起学习。更多托福考试资讯请关注前程百利。
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