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
The Natural Balance Being Altered The balance of nature is a very elaborate and delicate system of check and countercheck. I
The Natural Balance Being Altered The balance of nature is a very elaborate and delicate system of check and countercheck. I
admin
2013-05-28
61
问题
The Natural Balance Being Altered
The balance of nature is a very elaborate and delicate system of check and countercheck. It is continually being altered as climates change, as new organisms evolve, as animals or plants spread to new areas. But the alterations have in the past, for the most part, been slow whereas with the arrival of civilized man, their speed has been multiplied much: from the evolutionary time-scale where change is measured by periods of ten or a hundred thousand years, they have been transferred to the human time-scale in which centuries and even decades count.
Everywhere man is altering the balance of nature. He is facilitating the spread of plants and animals into new regions. Sometimes deliberately, sometimes unconsciously. He is covering huge areas with new kinds of plants, or with houses, factories, slagheaps and other products of his civilization. He gets rid of some species on a large scale, but favors the multiplication of others. In brief, he has done more in five thousand years to alter the biological aspect of the planet than has nature in five million years.
Many of these changes which he has brought about have had unforeseen consequences. Who would have thought that the throwing away of a piece of Canadian waterweed would have caused half the waterways of Britain to be blocked for a decade? Or that provision of pot cacti for lonely settlers’ wives would have led to Eastern Australia being covered with forests of prickly pears?
Who would have predicted that the cutting down of forests on the Adriatic coast, or in parts of Central Africa, could have reduced the land to a semi-desert with the very soil washed away from the bare rock? Who would have thought that improved communications would have changed history by the spreading of disease-sleeping sickness into East Africa, measles into Ocean, AIDS around the whole world?
These are spectacular examples, but examples on a smaller scale are everywhere to be found. We made a nature sanctuary for rare birds, providing absolute security for al1 species; and we may find that some common and hardy kind of birds multiplies beyond measure and drive away the rare kinds in which we are particularly interested. We see, owing to some little change brought about)by civilization, the starting spread over the English countryside in hordes. We improve the yielding capacities of our cattle; and find that how they exhaust the pastures which were sufficient for less demanding stock. We gaily set about killing the carnivores that disturb our domestic animals, the hawks that eat our fowls and game-birds; and find that in so doing we are also removing the brake that restrains the multiplication of mice and other little rodents that gnaw away the farmers’ profits.
The author’s concern with the balance of nature, as evidenced by this passage, is best defined as
选项
A、intense and objective
B、conscientious but humorless
C、sincere and subjective
D、deep but dry
答案
A
解析
作者开篇即提出了人类以前所未有的速度打破了自然平衡的观点之后,就紧紧围绕这一论点,列举了大量客观发生的事例集中阐述,从中可以看出,作者的论述是客观的,选项A很好地表达了作者这一态度,其他三个选项B“尽责的但缺乏幽默感”;C“真挚主观”;D“深入枯燥”在原文中都找不到依据。
转载请注明原文地址:https://kaotiyun.com/show/6iQd777K
本试题收录于:
职称英语理工类B级题库职称英语分类
0
职称英语理工类B级
职称英语
相关试题推荐
Someabnormalhumanbehaviormaybecausedbyeatingsubstancesthatupsetdelicatechemicalbalancesinthebrain,
TheWorker’sRoleinManagementTraditionally,ithasbeentheworkers’roletoworkandmanagement’sroletomanage.Mana
TheWorker’sRoleinManagementTraditionally,ithasbeentheworkers’roletoworkandmanagement’sroletomanage.Mana
Theyaretryingtoidentifywhatiswrongwiththepresentsystem.
OldandActiveItiswell-knownthatlifeexpectancyislongerinJapanthaninmostothercountries.A【C1】______reportals
EatingPotatoesGivesYourImmuneSystemaBoostEatingpotatoesisnotonlygoodforbowelhealth,butalsoforthewholei
EatingPotatoesGivesYourImmuneSystemaBoostEatingpotatoesisnotonlygoodforbowelhealth,butalsoforthewholei
EatingPotatoesGivesYourImmuneSystemaBoostEatingpotatoesisnotonlygoodforbowelhealth,butalsoforthewholei
随机试题
A、失血性休克B、诊断性腹腔穿刺抽出不凝固血液C、两者均有D、两者均无外伤性脾破裂大出血可有
肾小管有两极,分别称为_______和_______,前者有_______和_______进出,后者与_______相连。
案情:赵某拖欠张某和郭某6000多元的打工报酬一直不付。张某与郭某商定后,将赵某15岁的女儿甲骗到外地扣留,以迫使赵某支付报酬。在此期间(共21天),张、郭多次打电话让赵某支付报酬,但赵某仍以种种理由拒不支付。张、郭遂决定将甲卖给他人。在张某外出寻找买主期
下列()的成功标准是项目管理团队能够高效率运转并能对其实现有效的领导。
矽肺分布最广、发病人数最多,危害最严重。采矿、建材、铸造、石粉加工工业中的各种接尘工种均可发生。下列粉尘引起的矽肺,具有发病率高、发病工龄短、进展快、病死率高等特点的是()。
下列项目中,影响现金流量表中的“购买商品、接受劳务支付的现金”项目的有()。
外铄论者一般强调人的发展主要依靠环境的刺激和要求、他人的影响、学校的教育等外在的力量。其典型代表之一是美国的行为主义心理学家______。
奥苏伯尔提出的学习理论是
TheGardenFieldsWheredreamsdocometrue!Celebratelife’sspecialmoment
Televisionisanattractiveadvertisingmediuminthat______.Directmailisaneffectiveformofadvertisingforbusinessesto
最新回复
(
0
)