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
Human and the Environment One of the most pressing challenges that the United States and indeed the world will face in the n
Human and the Environment One of the most pressing challenges that the United States and indeed the world will face in the n
admin
2011-01-05
61
问题
Human and the Environment
One of the most pressing challenges that the United States and indeed the world will face in the next few decades is how to alleviate (减轻点)the growing stress that human activities are placing on the environment. The consequences are just too great to ignore. Wildlife habitats (栖息地)are being degraded(使退化) or disappearing altogether as new developments take up more land. (46) As many as 30 percent of the world’s fish stocks are over-exploited. And the list goes on.
(47) Advances in computing power and molecular biology(分子生物学) are among the trem endows increases in scientific capability that are helping researchers gain a better understanding of these problems. Recent developments in science and technology could provide the basis for some major, and timely(及时的) actions that would improve our understanding of how human activities affect the environment.
One priority for research is improving hydrological(水文学的)forecasting. (48) Already, widespread water shortages have occurred in parts of China, India, North Africa, and the Arabian Peninsula. The need for water also is taking its toll (造成损失)on freshwater(淡水)ecosystems (生态体系)in the United States. Only 2 percent of the nation’s streams are considered in good condition, and close to 40 percent of native fish species are rare or extinct. Using a variety of new remote sensing tools scientists can learn more about how precipitation(降水量)affects water levels, how surface water is generated and transported, and how changes in the landscape affect water supplies.
To prevent outbreaks of infectious(传染性的)diseases in plants, animals, and humans, more study is needed on how pathogens (病原体), parasites(寄生生物), and disease-carrying species-as well as humans and other species they infect-are affected by changes in the environment. (49) Researchers can take advantage of new technologies in genetics and computing to better monitor and predict the effects that environmental changes might have on disease outbreaks.Humans have made changes to earth’s surface, such as tropical deforestation(砍伐森林), reduction of surface and ground water, and massive development, so dramatic that they approach the levels of transformation that occurred during glacial periods(冰川期). (50) Recent advances in data collection and analysis should be used to record and better understand the causes and consequences of changes in land cover and use.
A. It has been estimated that the world’s water use could triple in the next two decades.
B. Plant and animal species are becoming extinct at a greater rate now than at any time in earth’s history.
C. The overuse of antibiotics (抗生素) both in humans and in farm animals has contributed to the growth of antibiotic resistant micro-organisms (微生物).
D. Yet, there is reason to have hope for the future.
E. Until recently, very little information was documented about changes and consequences of land usage.
F. Such changes cause changes in local and regional climate, and will determine the future of agriculture.
选项
答案
A
解析
本题考查的是对上下文之间的意义关系的理解。空格(48)所在的段落主要是在讲全世界面临的严重缺水问题,而选项中只有A项是在谈世界用水问题,它与下文所谈到的世界淡水匮乏问题一起,分别从两方面论述了该段的主题句,也即第一句,故选A。
转载请注明原文地址:https://kaotiyun.com/show/l9Qd777K
本试题收录于:
职称英语理工类C级题库职称英语分类
0
职称英语理工类C级
职称英语
相关试题推荐
EbolaOutbreak1YouarelikelyawarethatseveralcountriesinWestAfricaarebattlinganEbolaoutbreak.Ebolaisadangerous
KnowingYourRealPersonalityfromSleepingPositionsEveryonehasgottwopersonalities—theonethatisshowntotheworld
TheGreatNewspaperWarUpuntilabout100yearsago,newspapersintheUnitedStatesappealedonlytothemostseriousread
Whichofthefollowingcanhelpapersonquitsmoking?Whichofthefollowingissaidtobethemostexpensiveandharmful?
WhatdoesStanFieldtakeatbreakfast?WhichofthefollowingdoesNOTindicatepeople’senhancedawarenessoftheimportance
ThepassageindicatesthatancienttreatmentsforinjuryanddiseasewereWhichofthefollowingstatementsisNOTtrue?
Acrowdgatheredtoseewhathadhappened.
Sheeventuallymarriedthemostpersistentoneofheradmirers.
Iamverygratefultoyouforyourassistance.
随机试题
二重积分(x+2y)dy=_______.
一女性患者,40岁,已婚,因月经淋漓不净20天来就诊。妇科检查:子宫6+周妊娠大小,两侧附件阴性。B超提示“粘膜下子宫肌瘤”。下列哪项临床表现不符合该诊断()
女性,24岁。发现心尖区Ⅲ级收缩期杂音3年,发热2周。可闻收缩中、晚期喀喇音,有杵状指,足底有无痛性小出血点。该病例心脏超声检查哪项表现对诊断最有意义
技术风险的防范可以根据业务需求建立完善的信息技术系统及相应的容错备份系统和灾难备份系统,其包括( )。
2015年8月15日,甲市税务机关认为本市乙公司有逃避纳税义务行为,既不提供纳税担保又有明显的转移、隐匿其应纳税的商品、货物等迹象,经甲市税务局局长的批准,遂将乙公司的一批货物扣押,乙公司认为自己没有问题,所以对此行为不服。2015年9月20日,乙向甲市人
A、 B、 C、 D、 C
萨特认为人的本质只有与他人和社会隔离开来才能显现。这种观点是
在包含1000个元素的线性表中实现如下各运算,哪一个所需的执行时间最短?
需求分析阶段的任务是()。
______ispopularinthesouth?______hasflowersofdifferentcolorsbetweensingleformanddoubleform?
最新回复
(
0
)