在线观看亚洲精品专区-在线观看亚洲免费-在线观看亚洲免费视频-在线观看亚洲欧美-欧美freexxx-欧美free嫩交video

食品伙伴網服務號
 
 
當前位置: 首頁 » 專業英語 » 英語短文 » 正文

Botany

放大字體  縮小字體 發布日期:2007-12-07
核心提示: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 to


    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 form what we can observe of pre-industrial 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.

 

更多翻譯詳細信息請點擊:http://www.trans1.cn
 
關鍵詞: Botany
[ 網刊訂閱 ]  [ 專業英語搜索 ]  [ ]  [ 告訴好友 ]  [ 打印本文 ]  [ 關閉窗口 ] [ 返回頂部 ]
分享:

 

 
推薦圖文
推薦專業英語
點擊排行
 
 
Processed in 1.227 second(s), 256 queries, Memory 1.64 M
主站蜘蛛池模板: 国产精品一级香蕉一区 | 日韩亚洲欧洲在线com91tv | 日韩一卡 二卡 三卡 四卡 免费视频 | 人人插97 | 国产免费久久精品99久久 | 无遮挡很爽很污很黄在线网站 | 特级毛片免费看 | 四虎影院在线免费 | 亚洲黄色色图 | 免费观看色视频 | 天天都色 | 黄色毛片免费网站 | 夜夜bb| 色日本视频| 香蕉操| 97se狠狠狠狠狼亚洲综合网 | 欧美一区中文字幕 | 99久免费精品视频在线观看2 | 色噜噜狠狠色综合中文字幕 | 日本www在线观看 | 色色色色色色色色色色色 | 免费观看在线观看 | 网www天堂资源在线 网红和老师啪啪对白清晰 网络色综合久久 | 亚洲成人国产 | 黄色大片在线免费观看 | 黄色的视频网站在线观看 | 成人国产激情福利久久精品 | 四虎影视网址 | 国产在线成人一区二区 | 国产特黄一级毛片特黄 | 男人扒开美女尿口无遮挡图片 | 大黄蕉 | 天天插天天插天天插 | 中国人69xxx大全 | 日本高清中文字幕在线观穿线视频 | 种子 在线播放 | 亚欧色视频在线观看免费 | 中文字幕卡二和卡三的视频 | 亚洲欧美成人 | 久久综合久久精品 | 五月婷婷激情视频 |