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
2011-01-02
96
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 (祖先) knew about plants, but from what we can observe of preindustrial societies that still exist, a detailed learning of plants and their properties must be extremely ancient. They have always been enormously (巨大地) 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 (亚马逊河) 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 (淡紫色的). When our Neolithic (新石器时代) 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 cannot 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/ykLd777K
本试题收录于:
职称英语理工类A级题库职称英语分类
0
职称英语理工类A级
职称英语
相关试题推荐
AnimalshaveRightsRulingoutTheirUseinResearch?Toparaphrase18th-centurystatesmanEdmundBurke,"allthatisneed
TheBuildingofthePyramidsTheoldeststonebuildingsintheworldarethepyramids.46Thereareovereightyofthemscat
ExerciseCanReplaceInsulinforElderlyDiabeticsMostolderpeoplewithso-calledtypeIIdiabetescouldstoptakinginsul
WronglyConvictedManandHisAccuserTellTheirStoryNEWYORKNY,January5,2010,St.Martin’sPresshasannouncedthere
ADon’tBeaPerfectionistBTheBenefitsofKnowingWhereWeWanttoGoCHardWorkPlusGoodLuckDTheOutcomesofOurEf
AWonderfulChipItistiny,onlyaboutaquarterofaninchsquare,andquiteflat.Underamicroscope,itresemblesasty
Thereareonlyfiveminutesleft,buttheoutcomeofthematchisstillindoubt.
Yourteacherwilltakeyourillnessintoaccountwhenmarkingyourexams.
TightenedVisaRegulationsAccordingtoSouthKorea’snewvisaregulations,nativespeakersofEnglishinSouthKoreawillb
随机试题
实二次型f(x1,x2,x3)=x12+x2x3的正惯性指数p=__________。
Itwaseasytofindseatsinthetraininthatthereweresofew________.
设则∫一22f(x)dx=________.
A、分装法或整装法B、整装法C、混装法或整装法D、分装法或混装法E、整装法或混装法或分装法C
如图11-20所示桁架杆件1—2的内力是多少?
期权费的大小取决于期权合约的要素,其中不包括()。
在互联网时代,因个人信息泄露导致被垃圾短信骚扰、社交账号被盗等现象时有发生,甚至遭遇到网络诈骗。上述材料告诉我们()。
射电望远镜是指观测和研究来自天体的射电波的基本设备,可以测量天体射电的强度、频谱及偏振等量。下列关于射电望远镜原理的说法错误的是:
_____________istheprocessofimplementingriskresponseplans,trackingidentifiedrisks,monitoringresidualrisk,identifyingn
Attention,coffeelovers!Wehaveforyou,thebestcoffeemachine______invented.
最新回复
(
0
)