Plants and Mankind
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 10,000years 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.
A. Right B. Wrong C. Not mentioned
A. Right B. Wrong C. Not mentioned
A. Right B. Wrong C. Not mentioned
A. Right B. Wrong C. Not mentioned
A. Right B. Wrong C. Not mentioned
A. Right B. Wrong C. Not mentioned
A. Right B. Wrong C. Not mentioned
2014年职称英语考试综合类语法辅导资料:比较句型(4)
全国职称英语考试综合类AB级课堂笔记词汇(2)
职称英语词汇选项的考核目标和例题解析
2014年职称英语考试综合类语法知识讲解:第十讲定语从句
2014年职称英语考试综合类语法辅导资料:比较句型(3)
2014职称英语考试综合类语法知识讲解:第十八讲时态和语态
2014年职称英语考试综合类重点词汇精选(17)
2014年职称英语考试综合类重点词汇精选(12)
2014年职称英语考试综合类重点词汇精选(19)
2014年职称英语考试综合类C级核心词汇(3)
2014年职称英语考试综合类语法知识讲解:第十四讲地点状语
2014年职称英语考试综合类语法辅导资料:比较句型(6)
职称英语综合类学习资料词汇选项练习(7)
2014年职称英语考试综合类重点词汇精选(16)
2014年职称英语考试综合类语法知识讲解:第十九讲基本句型
2014年职称英语考试综合类重点词汇精选(1)
职称英语综合类学习资料词汇选项练习(8)
2014年职称英语考试综合类重点词汇精选(13)
2014年职称英语考试综合类重点词汇精选(3)
2014年职称英语考试综合类语法知识讲解:第二讲强调
2014年职称英语考试综合类语法知识讲解:第五讲情态动词
2014年职称英语考试综合类语法知识讲解:第七讲虚拟语气
2014年职称英语综合类考试同义词组辨析(4)
2014年职称英语考试综合类语法知识讲解:第十二讲状语从句
2014年职称英语考试综合类语法知识讲解:第三讲省略
2014年职称英语考试综合类C级核心词汇(2)
2014年职称英语考试综合类C级核心词汇(1)
2014年职称英语综合类考试同义词组辨析(3)
2014年职称英语考试综合类语法知识讲解:第九讲名词性从句
2014年职称英语考试综合类常考重点语法:主谓一致
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |