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
In terms of the evolution of life on Earth, human beings have just arrived. 【C1】______ their short time on Earth, however, peopl
In terms of the evolution of life on Earth, human beings have just arrived. 【C1】______ their short time on Earth, however, peopl
admin
2010-06-26
50
问题
In terms of the evolution of life on Earth, human beings have just arrived. 【C1】______ their short time on Earth, however, people have brought about enormous changes to the surface of the planet—changes far out of【C2】______to the interval of time they have【C3】______ it.
With the【C4】______ of intelligence and manual skill, people have found ways to use plant and animal resources, mineral ores, fuels, and so on. As the number of people on Earth increases, it becomes increasingly difficult for the population to survive【C5】______ the resources of the land. The amount of land is limited. Although agricultural production can be increased by use of【C6】______such as tractors and the addition of fertilizer, the land【C7】______can produce only so much food and no more. As the human population grows, people【C8】______ more.
People are only a very small 【C9】______of all the living things on the planet. Yet their numbers create a 【C10】______ on resources that can’t be 【C11】______. For example, the amount of water on Earth is limited; this water is 【C12】______ through natural processes. However, the natural processes for 【C13】______ water can clean only a certain amount of water.【C14】______, a limited amount of petroleum can be found under the Earth’s surface.
All natural systems tend toward 【C15】______ among opposing factors or forces. Human activities can cause or 【C16】______ permanent changes in natural systems. The【C17】______ smoke from thousands of factories has caused enormous air pollution. Cleaning this smoke has【C18】______ the protective ability of natural processes. The forests cannot clean the air fast enough. The twentieth century began with powerful countries competing to take【C19】______ of the Earth. As an outcome of their hunger, the Earth was abused. Now that people are no longer【C20】______ of the causes of the sickness of our planet, they seek ways to rescue the Earth.
【C7】
选项
A、ultimately
B、previously
C、currently
D、thereby
答案
A
解析
副词辨析题。句意为:虽然使用拖拉机等机械以及使用化肥可以提高农业产量,但是土地最终所能产出的粮食只有那么多,不会再增加。[A]ultimately“最终”;[B]previously“先前”;[C]currently“当前”;[D]thereby“从而,因此”。所以[A]是答案。
转载请注明原文地址:https://kaotiyun.com/show/X21K777K
0
专业英语四级
相关试题推荐
______,manypeoplestillvoteagainsttheuseofthedeathpenalty.
Theinventionofthecomputerissaidtohaveusheredinanotherrevolution______ithasgreatlychangedpeople’swayofliving
Man,nolessthanthelowerformsoflife,______theproductoftheevolutionaryprocess.
You______thatlettertoJames.However,youdidn’t.
Theevolutionofsexratiohasproduced,inmostplantsandanimalswithseparatesexes,approximatelyequalnumbersofmalesan
Fromthehealthpointofviewwearelivinginamarvelousage.Weareimmunizedfrombirthagainstmanyofthemostdangerousd
WhatwerethetwoenvironmentcampaignersclaimsagainstMcDonald’s?
Moreandmoreoftheworld’ssupplyofseafoodiscomingfromfarms.Although80%oftheworld’sseafoodcomesfrommarineha
Seafoodcouldbegoingoffalotofmenusastheworldwarms.Morethanhalfofagroupoffish【C1】______forthemarinefoodwe
Seafoodcouldbegoingoffalotofmenusastheworldwarms.Morethanhalfofagroupoffish【C1】______forthemarinefoodwe
随机试题
伤寒小结中的伤寒细胞来源于
颅内压增高的临床表现是
将中风分为真中和类中二大类的医家是()
【背景资料】A机电安装公司项目部总承包了某化工厂技术改造项目。在施工过程中,项目部将管道安装任务分包给了具有相应资质的B公司。建设单位提供设备,A机电安装公司提供主材。在项目部协助业主试生产期间,由于一个管道上的一个阀门突然出现砂眼泄漏,泄漏的无色、无味
在Windows中,要改变窗口的位置,可以用鼠标拖动窗口的()。
财务定期清查可以是全面清查也可以是局部清查。()
黄金圆环(如下图)是设计用来说明激励性的领袖与普通人在思考、行动和交流沟通方式上的区别。普通人是由外向内的,而激励性的领袖却是用从内到外的方式来思考、行动和交流。根据上述定义,以下选项中属于激励性领袖交流方式的是:
Inordertoworkheretheforeignerneedsaworkpermit,whichmustbe【C1】______forbyhisprospectiveemployer.Theproblemher
这个花园根本无人整理。
Whenyouspeakonthetelephone,youcannotuseyourfacial(面部的)expression,eyecontactandgesturestohelpcommunicateyourme
最新回复
(
0
)