首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Plants and Mankind Botany, the study of plants, occupies a peculiar position in the history of human knowledge. We don’t kno
Plants and Mankind Botany, the study of plants, occupies a peculiar position in the history of human knowledge. We don’t kno
admin
2013-09-24
55
问题
Plants and Mankind
Botany, the study of plants, occupies a peculiar position in the history of human knowledge. We don’t know what our Stone Age ancestors knew about plants, but from what we can observe of prein-dustrial 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 many other purposes. Tribes living today in the jungle of the Amazon recognize hundreds of plants and know many properties of each. To them botany 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.
People can not survive without plants.
选项
A、Right
B、Wrong
C、Not mentioned
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/YEFd777K
本试题收录于:
职称英语综合类C级题库职称英语分类
0
职称英语综合类C级
职称英语
相关试题推荐
FreezingtoDeathforBeautyPeopleinBeijingwearalotofclothingduringwintertofendoff(抵御)thecold.IntheUnitedS
FreezingtoDeathforBeautyPeopleinBeijingwearalotofclothingduringwintertofendoff(抵御)thecold.IntheUnitedS
Wearewastingprecioustimesittingaroundhere.
Theyhadafarbetteryieldthananyotherfarmmilesawayaroundthisyear.
FlyingintoHistoryWhenyouturnonthetelevisionorreadamagazine,celebrities(名人)areeverywhere.Althoughfameandt
TheMoonandmostartificialsatellitestravelaroundtheEarthinellipticalpaths.
ComputersBeforethewidespreaduseofcomputers,managerscouldnot(51)fulluseoflargeamountsofvaluableinformationabo
Shewasgratefultohimforbeingsogoodtoher.
Wemustabidebytherules.
随机试题
人工喂养:
不属于我国计划免疫范畴的传染病是()
药学职业道德准则的重要内容之一是药学人员与病人之间最基本的道德要求是
甲公司与乙公司签订了设备买卖合同,合同约定乙公司先向甲公司交付设备,丙公司作为甲公司的保证人担保甲公司按照合同约定的期限向乙公司支付100万元设备价款,合同签订后,甲公司与乙公司自行变更了买卖合同中的价款条款,将设备价款减至95万元,并将甲公司支付价款的履
某建筑松散砂土地基,处理前现场测得砂土孔隙比e=0.78,砂土最大、最小孔隙比分别为0.91和0.58,采用砂石桩法处理地基,要求挤密后砂土地基相对密实度达到0.85,若桩径0.8m,等边三角形布置,试问砂石桩的间距为下列何项数值?(取修正系数ξ=1.2)
某堤防加固工程,建设单位与施工单位签订了施工承包合同,合同约定:(1)工程9月1日开工,工期4个月;(2)开工前,建设单位向施工单位支付的工程预付款按合同价的10%计,并按月在工程进度款中平均扣回;(3)保留金按5%的比例在月工程进度款中预留;(4
国际工程投标报价时,对于预计施工现场发生的办公费,正确的做法是()。
下列关于商业银行为降低个人信贷业务的操作风险的说法,正确的有()。
住宅物业管理在()情况下,建设单位可以采用协议方式选聘具有相应资质的物业服务企业。
下列关于公文分类的说法正确的是()。
最新回复
(
0
)