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
2016年高考英语二轮复习专题讲练测:(测)专题03 阅读理解Ⅰ:主旨大意题(原卷版)
2017届高考英语一轮复习全套课件:第2部分 语法突破 专题8 动词的时态和语态(北师大版)
2017届高考英语一轮复习知识梳理练习:选修6 Unit 16 Stories(北师大版)
2017届高考英语一轮复习全套课件:第1部分 选修7 教材知识梳理 Unit 21 Human Biology(北师大版)
2017届高考英语一轮复习全套课件:第2部分 语法突破 专题12 名词性从句主语从句(北师大版)
2017届高考英语一轮复习全套课件:第2部分 语法突破 专题13 并列连词和状语从句并列连词(北师大版)
2017届高考英语一轮复习全套课件:第3部分 写作指导 提分策略6 精简句子(北师大版)
2016年高考英语二轮复习专题讲练测:(测)专题02 完形填空(解析版)
2016年高考英语二轮复习专题讲练测:(测)专题05 阅读理解Ⅲ:推理判断题(原卷版)
2017届高考英语一轮复习知识梳理练习:必修5 Unit 13 People(北师大版)
2016年高考英语二轮复习专题讲练测:(测)专题06 阅读理解Ⅳ:词义猜测题(解析版)
2017届高考英语一轮复习知识梳理练习:选修7 Unit 20 New Frontiers(北师大版)
2017届高考英语一轮复习全套课件:第3部分 写作指导 提分策略2 过渡词语(北师大版)
2016年高考英语二轮复习专题讲练测:(测)专题06 阅读理解Ⅳ:词义猜测题(原卷版)
2017届高考英语一轮复习知识梳理练习:必修5 Unit 14 Careers(北师大版)
2016年高考英语二轮复习专题讲练测:(测)专题10 书面表达(解析版)
2017届高考英语一轮复习全套课件:第2部分 语法突破 专题7 动词和动词短语(北师大版)
2017届高考英语一轮复习全套课件:第1部分 选修7 教材知识梳理 Unit 19 Language(北师大版)
2017届高考英语一轮复习知识梳理练习:必修4 Unit 12 Culture Shock(北师大版)
2017届高考英语一轮复习知识梳理练习:必修5 Unit 15 Learning(北师大版)
2016年高考英语二轮复习专题讲练测:(测)专题08 阅读填空(解析版)
2017届高考英语一轮复习全套课件:第1部分 选修6 教材知识梳理 Unit 16 Stories(北师大版)
2016年高考英语二轮复习专题讲练测:(测)专题09 短文改错(解析版)
2017届高考英语一轮复习全套课件:第2部分 语法突破 专题2 名词(北师大版)
2017届高考英语一轮复习全套课件:第1部分 选修6 教材知识梳理 Unit 18 Beauty(北师大版)
2017届高考英语一轮复习知识梳理练习:选修6 Unit 17 Laughter(北师大版)
2016年高考英语二轮复习专题讲练测:(测)专题03 阅读理解Ⅰ:主旨大意题(解析版)
2017届高考英语一轮复习知识梳理练习:选修6 Unit 18 Beauty(北师大版)
2016年高考英语二轮复习专题讲练测:(测)专题07 阅读理解Ⅳ:篇章结构题(解析版)
2017届高考英语一轮复习全套课件:第1部分 选修6 教材知识梳理 Unit 17 Laughter(北师大版)