人类文明是从植物学开始的，比如种地，植物学一开始就是面向生物的营养与健康的。植物学是生物学的分支学科。下面，小编为大家送上一篇公共英语三级阅读文章，我们一起走进植物学的世界。
Botany
Botany, the study of plants, occupies a peculiar position in the history of human knowledge. For many thousands of years it was the one field of awareness about which humans had anything more than the vaguest of insights. It is impossible to know today just what our Stone Age ancestors knew about plants, but from what we can observe of preindustrial societies that still exist a detailed learning of plants and their properties must be extremely ancient. This is logical. Plants are the basis of the food pyramid for all living things even for other plants. They have always been enormously important to the welfare of people not only for food, but also for clothing, weapons, tools, dyes, medicines, shelter, and a great many other purposes. Tribes living today in the jungles of the Amazon recognize literally hundreds of plants and know many properties of each. To them, botany, as such, has no name and is probably not even recognized as a special branch of "knowledge"at all.
Unfortunately, the more industrialized we become the farther away we move from direct contact with plants, and the less distinct our knowledge of botany grows. Yet everyone comes unconsciously on an amazing amount of botanical knowledge, and few people will fail to recognize a rose, an apple, or an orchid. When our Neolithic ancestors, living in the Middle East about 10, 000 years ago, discovered that certain grasses could be harvested and their seeds planted for richer yields the next season the first great step in a new association of plants and humans was taken. Grains were discovered and from them flowed the marvel of agriculture: cultivated crops. From then on, humans would increasingly take their living from the controlled production of a few plants, rather than getting a little here and a little there from many varieties that grew wild - and the accumulated knowledge of tens of thousands of years of experience and intimacy with plants in the wild would begin to fade away.
植物学
植物学，即对植物的研究，在人类知识的历史中占据了特殊的地位。这是人类几千年来超越模糊的认知而真正有所了解的领域之一。我们今天不可能知道新石器时代的祖先们对植物到底了解多少，但我们在至今仍存在的前工业化社会观察到：人类对植物及其特性的详细了解应该是非常古老的。这是理所当然的。植物是其他生物甚至其他植物食物金字塔的基础。它们对人们的生活至关重要，不仅在食物上，而且在衣物、武器、工具、染料、 药物、住所和许许多多其他的用途上。至今仍生活在亚马逊河丛林中的部落确实能够辨识几百种植物并知道每一种的许多特性。对他们来说，植物学没有专门的名称，甚至可能根本未被认为是一种专门知识。
不幸的是，工业化的程度越高，我们距直接与植物接触就越远，我们的植物学知识的增加也就越微不足道。然而每个人在不知不觉中拥有大量的植物学知识，很少有人认不出玫瑰、苹果或兰花。大约一万年前居住在中东的新时代的祖先们 发现某些草能被收获，它们的种子下一季耕种会收获更多时，人类就迈出了人和植物之间的新关系第一大步。谷子被发现后，农业的奇迹从此诞生：这就是可栽培的谷物。从那时起，人类越来越依赖少数可控制的作物生存，而不再是从众多的野生种类中这里获取一点，那里获取一点。这样在千万年中对于野生植物的经验和密切联系中积累起来的知识就开始消失了。
附：公共英语三级阅读技巧之如何做释义性的题目
所谓释义性的题目，就是要求对文章中阐述的事物进行准确的解释。问题往往问该事物的特征、优点、功能、作用等，如
The main characteristics of the system is _________.
One of the advantages of living in the countryside is _________.
这类问题在阅读理解的题目中占较大的比例。因为，阅读理解的文章大多是说明文体裁。说明文就是对事物解释，定义。文章用较大的篇幅来解释，答案项要么是对这些解释的'另一说法，要么是对这些解释的归纳。
这类问题虽属细节题，但不容易做。有两点要注意。
1.注意解释的准确性
干扰项往往在对文章事物的解释中，夹带"私货：，加进一些词，夸大了原文的意义，作了不合事实的引伸。
这就告诉我们，在辨别信息时，对一些对原文解释、归纳的选项，要注意其释义的准确性。特别要当心在解释时加进一些修饰词，如mainly，chiefly，whenever，Only等，使原文的意思发生细微的变化。因此有这些词的选项，多半是错误的。
2.注意归纳的准确性来源：
考试大多问的是事物的主要特点、特征、功能，干扰项却把次要的、细节性的东西，具体事实混进选项。
这告诉我们，在做释义题，辨别选项时，要注意区分细节和结论，事实和观点。问归纳性的结论，观点时不要把具体的细节，事实套上去。
