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
Is there a population problem? My answer【C1】______the question is "YES", there is a problem. The scale of human activities is no
Is there a population problem? My answer【C1】______the question is "YES", there is a problem. The scale of human activities is no
admin
2010-12-02
38
问题
Is there a population problem? My answer【C1】______the question is "YES", there is a problem. The scale of human activities is now so【C2】______that we are appreciably【C3】______the climate and ecosystems in our country, the U.S. and the world.
The total【C4】______of people on the environment is【C5】______to each of two factors:
A) The number of people, and
B) The【C6】______impact of each person.
If we are to【C7】______the total impact of people on the global environment, we must address the first, or preferably both, of these【C8】______
There are many strong forces that will cause【C9】______growth of the average impact of each person on the global environment. To the extent that people in【C10】______countries【C11】______increase their material standard of living to levels more like ours, material consumption per capita will grow. So we are left with the imperative of【C12】______population growth, and then of studying the question, "Can this【C13】______population be sustained?’
To gain a better appreciation of the seriousness of the problem, let us review some very elementary【C14】______Let us consider a【C15】______that is experiencing steady growth【C16】______such as 5% per year.
First we note that this growing quantity will double【C17】______in a fixed time. This doubling time is found by【C18】______70 by the percent growth per year. For example, the doubling time for a steady growth rate of 5% per year is 70/5=14 years.
Second, we note that a few doublings can give enormous numbers. It is convenient to remem-ber【C19】______ten doublings causes the growing quantity to increase in size by a factor of approximately 1000; twenty【C20】______will cause an increase by a factor of 1,000,000, etc.
【C4】
选项
A、effect
B、influence
C、affection
D、impact
答案
D
解析
名词辨析题。effect是“结果、影响,作用”;influence是“影响,作用,感化力”,一般强调某人对他人或事物的影响;affection是“喜爱”;impact是“冲击,碰撞,作用”,一般指不良影响。根据句意,人口对环境造成了不良影响,所以选择impact。
转载请注明原文地址:https://kaotiyun.com/show/if1K777K
0
专业英语四级
相关试题推荐
In58millionhomes,theVCRhasbecomenearlyasmuchasthefamilycar.ButdespitetheVCR’sadvantages,videobuffscomplain
______madeherparentsverydisappointed.
Ifwehangtogether,wecanovercomeanyobstacle,______greatitis.
Ourmanager______araiseinsalaryforages,butnothinghashappenedyet.
RogerRosenblatt’sbookBlackFiction,inattemptingtoapplyliteraryratherthansociopoliticalcriteriatoitssubject,succe
2003FeatureEveningPerformances!Here’swhat’sinstoreforFridayandSaturdayEvenings!Thisissubjecttochange!March7th
Theworld’sgovernmentshavedone______nothingtocombatthethreatofnuclearaccidents.
Theyneedn’thavemadesomuch______overatriflelikethis.Itwasreallymuchadoaboutnothing.
He______ice-creamonbeachffhisfather______lastyear,leavingnothingbutdebts.
I’minParis,andastrangelyquietParisitis.Nothingisgoingnowhere.Ifthey’renotonstrikehere,they’restuckinatra
随机试题
关于片剂包衣目的下列说法错误的是()。
甲与乙签订房屋买卖合同,将一幢房屋卖与乙。双方同时约定,一方违约应支,付购房款35%的违约金。但在交房前甲又与丙签订合同,将该房卖与丙,并与丙办理了过户登记手续。下列说法中正确的是()。
下列各项中,按“财产转让所得”项目计征个人所得税的有()。
蔡邕创制了中国四大名琴之一的()。
下列有关《中华人民共和国宪法修正案》中土地政策的说法,不正确的是()。
节能:减排:环保相当于()。
以下社会组织属于财团法人的是()。
设L为从0(0,0)沿曲线到点A(1,1)的曲线,则曲线积分,2y)dy=
_彼が左利きかどうか、もしそうなら間違いなく彼が本当の犯人だ。
Whyisariversorich?
最新回复
(
0
)