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
89
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.
Withthefilmsprevalentacrossthewholeworld,however,mostcriticalplotpointsinHarryPotterandtheSorcerer’sStonecam
______maybesaidagainstTony,itcanhardlybearguedthatheishonest.
WhatwerethetwoenvironmentcampaignersclaimsagainstMcDonald’s?
Moreandmoreoftheworld’ssupplyofseafoodiscomingfromfarms.Although80%oftheworld’sseafoodcomesfrommarineha
Seafoodcouldbegoingoffalotofmenusastheworldwarms.Morethanhalfofagroupoffish【C1】______forthemarinefoodwe
Seafoodcouldbegoingoffalotofmenusastheworldwarms.Morethanhalfofagroupoffish【C1】______forthemarinefoodwe
Seafoodcouldbegoingoffalotofmenusastheworldwarms.Morethanhalfofagroupoffish【C1】______forthemarinefoodwe
Seafoodcouldbegoingoffalotofmenusastheworldwarms.Morethanhalfofagroupoffish【C1】______forthemarinefoodwe
随机试题
细菌性食物中毒中()主要引起神经症状。
某儿,6岁。麻疹初起,疹出不畅,身热头痛,咳嗽,目赤流泪,口渴,舌红苔薄而干,脉浮数。治疗当首选
使用超声波洗牙机时,工作头应与牙面成A.与牙面平行或小于20°角B.与牙面平行或小于15°角C.与牙面平行或小于30°角D.25°角左右E.80°角左右
公众参与式方法在社会评价中的具体运用包括参与式评价和( )两个方面。
下列选项中不属于消防安全重点单位的是()。
一般纳税人销售货物向购买方收取的包装物租金,应并入销售额计算增值税销项税额。()
关于火车和铁路,下列说法错误的是()。
甲想开设一个体打字店。急需资金。遂向其朋友乙提出借款1万元,双方约定,甲六个月内还本付息,并将甲家传一祖母绿宝石戒指出质于乙作担保。乙签约后即交给甲1万元。甲称祖母绿戒指在其乡下妻子处,过几天再交付。不久甲的打字店因生意清淡导致资金周转不灵,于是甲又向另一
“什么是社会主义。怎样建设社会主义”是邓小平同志在领导改革开放和现代化建设这一新的革命过程中,不断提出和反复思考的首要的基本理论问题。邓小平反复强调一定要把这个问题搞清楚,是为了
IfIaskyouwhatconstitutes"bad"eating,thekindthatleadstoobesityandavarietyofconnecteddiseases,you’relikelyto
最新回复
(
0
)