首页
登录
职称英语
In terms of the evolution of life on Earth, human beings have just arrived.
In terms of the evolution of life on Earth, human beings have just arrived.
游客
2023-11-17
60
管理
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. [br] 【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://tihaiku.com/zcyy/3196109.html
相关试题推荐
Whydidhumanbeingsbegintogrowcropsandraiselivestock?[br][originaltex
Whydidhumanbeingsbegintogrowcropsandraiselivestock?[originaltext]W
Humanbeingshaveusedtoolsforaverylongtime.Insomepartsofthewor
Friendshipisforeveratopicforhumanbeings.Howdoyouview"friendship"?
Theevolutionofsexratiohasproduced,inmostplantsandanimalswithse
Theevolutionofsexratiohasproduced,inmostplantsandanimalswithse
Theevolutionofsexratiohasproduced,inmostplantsandanimalswithse
Likeotherformsoflifeonthisplanet,humanbeingsfaceabasictask:to
Likeotherformsoflifeonthisplanet,humanbeingsfaceabasictask:to
Likeotherformsoflifeonthisplanet,humanbeingsfaceabasictask:to
随机试题
Forthispart,youareallowed30minutestowriteashortessay.Youshouldsta
关于CT机工作原理的叙述,错误的是A.计算机将模拟信号变成数字信号再重建图像
男性不育因素不包括A.不射精 B.精液异常 C.勃起障碍 D.不明原因不育
在原发性免疫缺陷病中,存在不同程度免疫球蛋白/抗体缺陷的大致比例是A.80%
小篆的基本运笔方法是()。A.侧锋用笔 B.蚕头燕尾 C.运笔如草
迈克尔?波特认为在一个行业中,存在着哪些基本的竞争力是。() Ⅰ.潜在
女性,60岁。反复低热半年,伴双手小关节肿痛。血白细胞9.8×10/L,血红蛋白
引起婴幼儿急性胃肠炎的主要病原体是A.新型肠道病毒 B.志贺菌 C.Norw
男,56岁。糖尿病患者,用胰岛素治疗,晚10时突起心慌、多汗、虚弱,继而神志不清
经过银行存款余额调节表调节后的存款余额,是企业可动用的银行存款实有数。()
最新回复
(
0
)