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
A、Agriculture in the industrialized world B、Cultivated crops. C、The association between roses and humans. D、The discoveries of c
A、Agriculture in the industrialized world B、Cultivated crops. C、The association between roses and humans. D、The discoveries of c
admin
2013-03-09
55
问题
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 from what we can observe of pm-industrial societies that still exist, a detailed learning of plants and their properties must be extremely ancient. This is logic al.
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 unconsciously has an amazing amount of botanical knowledge, and few people will fail to recognize a rose, an apple, or an orchid. 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. That was the first great step in a new association between plants and animals. Grains were discovered and from them flowed the marvel of agriculture: cultivated crops.
选项
A、Agriculture in the industrialized world
B、Cultivated crops.
C、The association between roses and humans.
D、The discoveries of certain grasses.
答案
B
解析
信息明示题。由文章最后的内容可知,农作物的培育是第一个伟大的进步,所以B正确。
转载请注明原文地址:https://kaotiyun.com/show/kcI7777K
0
大学英语六级
相关试题推荐
NetworkedAutomobileI’mdrivingthrougheasternFrance,theblip-blipofthelanemarkersrunningbackwardthroughmyperip
A、Callataxiforthewoman.B、Rideahorsewiththewoman.C、Gotothebusstationhimself.D、Drivethewomantothetrainstat
A、Sheisinthethirdgrade.B、Sheisinthesecondgrade.C、Sheisinthekindergarten.D、Sheisstillathome.D事实细节题。对话中女士说她的
Mybosshasalwaysattendedtothe________ofimportantbusinesshimself.
Youremployerwill______incometaxfromyoursalary.
A、Byborrowingmoneyfromthegovernmentandpayingbackaftergraduation.B、Byloaningfromthebankandpayingbackaftergrad
A、Increasingupperbodystrength.B、Discussingpopularclimbingsites.C、Selectingthenecessaryequipment.D、Findingaclimbing
A、Inapaintshop.B、Atanartmuseum.C、Inaswimmingpool.D、Atlumberyard.B
A、Inalibrary.B、Inaschool.C、Inabookstore.D、Inapublisher’soffer.C场景题,考生应该注意与场景相关的词。女士的第一句话“Ienjoygoingthroughseco
随机试题
________somestudentsareabletofindemploymentaftergraduation,otherswillhavetoreturntoschoolandearnanadvancedd
考虑腹内脏器损伤的条件是什么?
A.INHB.RFPC.SMD.EMB抑菌剂是
A.半夏姜汁B.石膏青黛C.苍术白术D.瓜萎杏仁E.香附枳壳
在计算机系统中,操作系统是()。
某施工单位中标一座铁路大桥(施工范围不含图中阴影部分),该桥跨越某三级通航河流,主跨为下承式钢梁,架桥机运梁车均可以在上面行使。边跨为32m简支T形梁,要求现场制梁,采用公铁两用架桥机架梁,工期要求20个月,孔跨布置详见下图。问题:简述T梁预制的质
当信用证上列明有效期,而未列明装运期,则可视为“双到期”。()
下列各句所涉及的年龄,最小的是()。
Whichbuswouldthemanliketotaketomorrowmorning?
Bobandhistwofriendswenttotheforesttowatchthetreesintheforest.Bob’sparentswerewaitinganxiouslyfortheminh
最新回复
(
0
)