GRE阅读真题机经及答案解析系列：Passage 56 -GRE阅读真题免费下载

市面上流传的GRE阅读机经真题有三百多篇，同时又存在多种版本的答案和解析，有些疑难题目让考生不知道听谁的，还有些版本的解析像是用谷歌翻译把同题目和选项翻译了一下。TD GRE教研组认为，GRE阅读的解析，可以讲得再清楚一点。

GRE不光有技巧，不光有快速解题法，GRE更加考察大家的逻辑硬实力，文字理解实打实的深度。良好的GRE备考应当在课堂上向老师学习快速解题法，取同取反逻辑的同时，课下扎扎实实的读懂每一句话。读懂，是一切技巧使用的前提。皮之不存，毛将焉附？

有感于此，我们尝试用比较长的时间，原创一个解析，力求做到超详细，大白话，包你懂。往期GRE阅读真题详细解析👉：GRE阅读Passage 解析，今天继续为大家推出GRE Passage 56解析，TD版超详细「包你懂」系列对此篇文章进行了清楚地解析。

GRE阅读真题机经Passage 56

Soil communities are dependent on plants for organic matter. Plants provide organic matter for soil communities through the decomposition of leaf litter, by oozing nutrients from roots, or through other methods of deposition of organic compounds into the soil environments. As a result of these diverse methods by which plants supply resources, unique soil communities form under different plant species and under plant communities that differ in composition. If a nonnative plant species invades an above-ground community of flora and fauna, it can alter links between the native above-ground community and the below-ground soil community. For example, an invading nonnative plant could alter the quantity of leaf litter production, which would alter nutrient contributions to the soil.

GRE阅读文章解析

第一部分：

白话版讲解：

土壤群落（一般都）要靠植物来获取有机物。植物向土壤群落提供有机物的方式有三种，一是落叶掉在地上腐化后进入土壤，二是根部分泌营养物质（即有机物），三是其他一些使有机化合物沉积进入土壤的方法。

注解：

community n. 群落
a group of interdependent plants or animals growing or living together in natural conditions or occupying a specified habitat

第二部分：

As a result of these diverse methods by which plants supply resources, unique soil communities form under different plant species and under plant communities that differ in composition.

白话版讲解：

因为植物有这么多向土壤提供资源的途径，所以一个独特的植物群落也就对应一个独特的土壤群落。地上长的植物不同，地下的土壤群落就不同。虽然地上长的植物相同，但各种植物所占比例不同，地下的土壤群落也不同。

第三部分：

If a nonnative plant species invades an above-ground community of flora and fauna, it can alter links between the native above-ground community and the below-ground soil community. For example, an invading nonnative plant could alter the quantity of leaf litter production, which would alter nutrient contributions to the soil.

白话版讲解：

如果有一种外来植物入侵了地上的植物和动物群落，该外来植物就可能会改变地上（植物和动物）群落和地下土壤群落之间的原有的联系。比如，一种外来植物入侵了，就可能会使落叶数量发生改变，进而使土壤群落从落叶这个渠道得到的营养物质的量也发生改变。

题目解析

1. According to the passage, plants supply resources to soil communities by which of the following methods?

A. Some plants supply resources to soil communities by promoting diversity of above- ground flora and fauna

B. Some plants supply resources to soil communities by oozing nutrients from their roots.

C. Some plants supply resources to soil communities by depositing leaf litter.

白话版讲解：

问根据文章，下列哪些选项是植物向土壤群落提供资源的方式？

根据文章第一部分，B选项和C选项正确。A选项说有些植物可以通过促进地上植物和动物的物种多样化来向土壤群落提供资源。这是无中生有的说法

本题答案：BC

2. Which of the following statements about the connection between above- ground plants and below-ground soil communities can be inferred from the passage?

A. Because of the nature of the link between above-and below-ground communities, many soil communities are deficient in nutrients.

B. The extent to which soil communities are dependent on above-ground plants is extremely variable from one soil community to another.

C. Because different plants supply resources to soil communities in different ways, distinctive soil communities form under different plant communities.