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
Where did tulip originally, grow?
Where did tulip originally, grow?
admin
2009-06-24
49
问题
Where did tulip originally, grow?
Botanical gardens and arboreta once wielded enormous influence in the world. Until our day, plants were practically the only source of drugs, and, as a result, professors of medicine like Gesner were also botanists who used university gardens under their supervision for the training of medical students.
Medicines were not the only product of these gardens. Some botanists also made it a practice to cultivate, disseminate, and study exotic plants received from explorers around the world, and many of these plants later assumed enormous economic importance. The tulip, now considered the typical flower of Holland and one of its chief exports, was introduced to the botanical gardens from the Near East, in the sixteenth century.
Natural rubber is one of the most spectacular examples of the influence that botanical gardens can exert on the fate of an industry and of a region. The tree Hevea Brasilienses grows naturally in several parts of the Amazonian valley, and the rubber obtained from it was shipped to the industrial nations through the Brazilian port of Manaus. Although Manaus lies in the heart of the Amazonian rain forest, the rubber trade was so intense between 1890 and 1920 this relatively small city became one of the richest and most developed in the world. It was the first Latin American city to have electric light. Majestic buildings and homes, churches and cathedrals and a complex system of sewers and floating docks were built there nearly overnight.
In the meantime, English botanists learned to cultivate H. Brazilienses in greenhouses and began distributing seeds and seedlings to several Southeast Asian countries. Plantation rubber was so readily produced in Malaysia that large quantities of it could be exported as early as 1910. Shortly after, it completely displaced the natural rubber of Brazil and Manaus became a ghost town.
Today, directors of botanical gardens and arboreta no longer engage in activities so economically urgent as the preparation of medical drugs, the propagation of tulips, and the transfer of hevea trees from one tropical Country to another were in their times. In our era, their contributions could never make or break the fate of cities or countries. These days, the gardens simply try to appeal to the general public by displaying plant species under attractive conditions at suitable times of year.
While these traditional contributions to science and to the public are important—and deserve appreciation—botanical gardens and arboreta could serve an even more essential purpose by involving themselves more directly in solving certain contemporary problems, a task for which they have unique qualifications. Indeed, they could yet become as vital to the world as they were in the time of Gesner, or in the heyday of Manaus.
There are clear signs that several botanical gardens and arboreta have already begun to evolve in this way. At the Kew Gardens, for example, the emphasis has long been on the collection of wild plant species and on taxonomy. But the new director of Kew, Arthur Bell, is a biochemist who has stated that one of his main concerns will be to use the garden’s facilities for improving patterns of agriculture, in developing countries.
There are many other fields of endeavor for the new botany, and one of the most urgent is the study of injured ecosystems. In most cases, however, damaged ecosystems will require more direct human intervention for their successful recovery. This is already happening in Israel; but the reclamation of strip-mined areas in this country will certainly present problems of greater complexity and magnitude.
Moreover, it is probably a mistake to assume, as many do, that the "best" environment is an untouched stretch of virgin land and that reclaiming a wasteland necessarily means returning it to its original state. Practically all existing ecosystems that humans find desirable were produced by profound transformations of nature or even by the creation of entirely artificial ecosystems. The eighteenth-century English naturalist William Marshall believed "Nature knows nothing of what we call landscape because this word refers to habitats manipulated by human beings for their own purpose...No spot on this island (England) can be said to be in a state of Nature. There is not a tree, perhaps not a bush, now standing on the face of the country which owes its identical state to Nature alone. Wherever cultivation has set its foot, Nature has become extinct...Those who wish for a Nature in a state of total neglect must take their residence in the woods of America".
In the past, artificial ecosystems like lamas, estates, and villages evolved over long periods of time, and this stow development enhanced their chances of success by allowing for the play of corrective forces—natural and human—that are the corrective forces that enhanced the chances of success of the evolution and thus for the satisfactory orchestration of their different components. As human intervention becomes increasingly rapid and violent, the trial and error of the past must be replaced by scientific knowledge. For instance, studies are needed to determine the amount of energy required for maintaining the ecological stability of artificial ecosystems.
选项
答案
Rubber trade.
解析
转载请注明原文地址:https://www.kaotiyun.com/show/5mTd777K
本试题收录于:
公共英语五级笔试题库公共英语(PETS)分类
0
公共英语五级笔试
公共英语(PETS)
相关试题推荐
TheWhiteHouseWegotupearlythismorningand(1)alongwalkafterbreakfast.Wewalkedthroughthebusinesssectionof
StoneHillMallisdifferentfromothermallsbecauseithasStoneHillMallispopularwithshoppersmainlybecauseofits
WhereDidAlltheShipsGo?TheBermudaTriangleisone(1)thegreatestmysteriesofthesea.Inthistriangularareabetween
WhereDidAlltheShipsGo?TheBermudaTriangleisone(1)thegreatestmysteriesofthesea.Inthistriangularareabetween
AutomaticDoorsinEgyptWhenyounextstepthroughthedoorsofasupermarket,spareathoughtforHeron,atalentedspecia
Whatdidthespeakertalkaboutlasttime?
ProfessorWangwentonalecturetourtoEdinburgh.
ProfessorWangwentonalecturetourtoEdinburgh.
Wheredidtuliporiginally,grow?
Achimpanzeecanbeasbigas
随机试题
某小学派校车接送学生,途中有几个学生提出要上厕所。司机在路边停车3分钟后,没有清点人数就将车开走了。小学生王某从厕所出来后,发现车已经开走了,急忙追赶,在追赶过程中摔倒在地,致使胳膊骨折。对王某的伤害()。
下列不属于女性外生殖器的有()。
治疗胁助胀痛,嗳气吞酸,舌红苔薄黄,脉弦数者,宜选用
在肝性脑病的治疗中,禁止使用的药物是
会计人员违背了会计职业道德,就会受到法律制裁。()
甲公司2018年8月开业,实收资本6000万元。2019年增加资本公积200万元,3月份与乙公司签订受托加工合同,约定由甲公司提供原材料100万元,并向乙公司收取加工费20万元;5月份与丙公司签订技术开发合同记载金额100万元。2019年甲公司应缴纳印花税
某公司年会设有6个红包,分别装有100、200、300、400、500、600元现金,若从中任意抽取3个红包且红包内总金额能被i等分,则三个红包归抽中的人所有。那么中奖概率为多少?
三班的一次联欢活动有学生没有参加,何捷、小马、丹丹、小珍中有一人没有参加,其他三人都参加了。老师在询问时,他们做了如下的回答。何捷:小马没来。小马:我不但参加了,而且还表演了节目。丹丹:我晚来了一会儿,但一直到晚会结束才走。
OnTVDatingShows小议电视相亲节目A.OnTVDatingShowsB.Wordlimit:160~200words(notincludingthegivenopeningsentence)C.Yourc
某个工厂有若干个仓库,每个仓库存放有不同的零件,相同零件可能放在不同的仓库中。则实体仓库和零件间的联系是
最新回复
(
0
)