91小视频在线观看-91小视频在线观看-91小视频-91小视频-欧美成人免费视频-欧美成人免费电影

食品伙伴網(wǎng)服務(wù)號(hào)
 
 
當(dāng)前位置: 首頁(yè) » 專業(yè)英語(yǔ) » 英語(yǔ)短文 » 正文

Botany

放大字體  縮小字體 發(fā)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(xì)信息請(qǐng)點(diǎn)擊:http://www.trans1.cn
 
關(guān)鍵詞: Botany
[ 網(wǎng)刊訂閱 ]  [ 專業(yè)英語(yǔ)搜索 ]  [ ]  [ 告訴好友 ]  [ 打印本文 ]  [ 關(guān)閉窗口 ] [ 返回頂部 ]
分享:

 

 
推薦圖文
推薦專業(yè)英語(yǔ)
點(diǎn)擊排行
 
 
Processed in 0.090 second(s), 15 queries, Memory 0.9 M
主站蜘蛛池模板: 手机在线看片福利 | 四虎4hu永久免费国产精品 | 久久综合九色 | 2021色噜噜狠狠综曰曰曰 | 亚洲第一区视频 | 中日韩在线视频 | 日本一区免费看 | 国产成人精品亚洲 | 亚洲区一二三四区2021 | 欧美性色黄 | 天天干狠狠 | 日本三级视频在线 | 免费大片黄在线观看日本 | 午夜激情影视 | 午夜资源站 | 欧美专区在线播放 | 午夜性视频| 国产手机免费视频 | 99久久伊人 | 天天干天天摸天天操 | 四虎在线最新地址公告 | 噜噜色噜噜 | 欧美性黄色| 毛片在线看免费版 | 奇米影视婷婷 | 高清性色生活片欧美在线 | 日本肥妇| 毛片不卡一区二区三区 | 亚洲国内精品自在线影视 | 新天堂网 | 国产高清区 | 噜噜噜天天躁狠狠躁夜夜精品 | 亚洲黄色三级网站 | 热re66久久精品国产99热 | 天天躁狠狠躁狠狠躁夜夜躁 | 久操免费在线 | 性free3d| 日操夜干 | 27pao强力打造高清免费高 | 成人丁香乱小说 | 日日夜夜天天久久 |