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 the United States, the need to protect plant and animal species has become a highly controversial and sharply political issue
In the United States, the need to protect plant and animal species has become a highly controversial and sharply political issue
admin
2012-07-17
74
问题
In the United States, the need to protect plant and animal species has become a highly controversial and sharply political issue since the passage of the Endangered Species Act in 1973. The act, designed to protect species’ living areas, and policies that preserve land and forests competes with economic interest. In the 1990’s, for example, the woodcutters in the Western United States were challenged legally in their attempt to cut trees for timber in the Cascade Mountains. The challenge was mounted to protect the endangered spotted owl (猫头鹰), whose remaining population occupies these forests and requires the intact, ancient forest for survival. The problematic situation set the interests of environmentalists against those of corporations and of individuals who stood to lose jobs. After months of debate and legal battles, the fate of the woodcutters—and the owls—was still undecided in mid-1992.
Similar tensions exist between the developed and the developing nations. Many people in industrialized nations, for example, believe that developing nations in tropical regions should do more to protect their rain forests and other natural areas. But the developing countries may be impoverished (使穷困),with populations growing so rapidly that using the land is a means to temporarily avoid worsening poverty and starvation.
Many of the changes to Earth that concern scientists have the potential to rob the planet of its biological richness. The destruction of Earth’s ozone layer (臭氧层),for example, could contribute to the general process of impoverishment by allowing ultra-violet rays to harm plants and animals. And global warming could wipe out species unable to quickly adapt to changing climates. Clearly, protecting Earth’s biological diversity is a complex problem. But solutions to humanity’s current problems will come only through coordinated international efforts to control human population, stabilize the composition of the atmosphere, and preserve intact Earth’s complex web of life.
Among "humanity’s current problems" (Line 6, Para. 3), the chief concern of the scientists is______.
选项
A、the impoverishment of developing countries
B、the explosion of the human population
C、the reduction of biological diversity
D、the effect of global warming
答案
C
解析
本题问在人类面临的问题中,科学家主要关注的是什么。根据文章第三段第一句我们知道,目前科学家关注的人类给地球带来的所有变化都是在使这一星球丧失其生物的丰富性,而这种情况最终会导致物种的灭绝。由此可见,科学家最关注的问题是目前生物资源正在不断减少。因此,本题的正确答案应是选项C“生物多样性的减少”。
转载请注明原文地址:https://kaotiyun.com/show/lbXO777K
0
在职攻硕英语联考
相关试题推荐
Thedifferencebetweenaliquidandagasisobvious【C1】______theconditionsoftemperatureandpressurecommonlyfoundatthes
Sociologistsusethetermpowertorefertothecapacityofpeopleorgroupstocontrolorinfluencetheactionsofothers,whet
Sociologistsusethetermpowertorefertothecapacityofpeopleorgroupstocontrolorinfluencetheactionsofothers,whet
Thestatesmanwasevidently______thejournalist’squestionsandglaredathimforafewseconds.
ThecreationofUNwas,perhaps,themost______achievementofthe20thcentury.
Peoplethinkingabouttheoriginoflanguageforthefirsttimeusuallyarriveattheconclusionthatitdevelopedgraduallyas
Shouldwecareifover150knownspeciesofanimalshave【C1】______fromtheearthinthelastfiftyyears?Shouldwebeconcerned
ThehistoryofAfrican—Americansduringthepast400yearsistraditionallynarrated【C1】______anongoingstruggleagainst【C2】___
Withoutthefrictionbetweentheirfeetandtheground,peoplewould______beabletowalk.
PsychologistAlfredAdlersuggestedthattheprimarygoalofthepsyche(精神)wassuperiority.Although【C1】______hebelievedthati
随机试题
Ifyouarelooking【C1】________information,libraryshelvesareagoodplace【C2】________.Butifyouneedup-to-the-minutedatao
完全竞争企业所面临的需求曲线是一条水平线,它表示()
初次分配是指国民收入在()
测定骨中钙浓度,应选择的检测方法是
手术人员的准备与消毒顺序是
现在中国居留的甲国公民约翰被甲国刑事追诉,甲国向中国提出引渡约翰的请求,中国和甲国间无引渡条约。下列选项正确的是哪几项?()
根据《岩土工程勘察规范》,在采空区进行工程建设时,下列哪些地段不宜作为建筑场地?
下列各项,符合我国关税条例的有()。
刘老师家庭负担重,老人要看病,孩子要读书,于是用假名在培训机构上课,挣钱补贴生活。这种行为()。
下列哪些术语是指某一种操作系统的类型?()
最新回复
(
0
)