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
67
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
DoYouHaveaSenseofHumor?Humorandlaughteraregoodforus.Thereisincreasingevidencethattheycanhealusphysica
SomeSleepDrugsDoMoreThanMakeYouSleepTheUnitedStatesFoodandDrugAdministration(FDA)hasorderedcompaniestopla
A.beforethecancercellsspreadelsewhereB.themorechancesofdyingofX-rayradiationhewillhaveC.whatismostrespons
KnowingYourRealPersonalityfromSleepingPositionsEveryonehasgottwopersonalities—theonethatisshowntotheworld
KnowingYourRealPersonalityfromSleepingPositionsEveryonehasgottwopersonalities—theonethatisshowntotheworld
AWondersMadebyOurSickbutCharmingLittleGirlBHelpingaDoctortoSucceedCHeartsSaddenedbyaRareDisorderofOur
Whichofthefollowingisnotlistedasafunctionofthespeechtherapist?Youmayinferthattheauthorfeelsthatoneofthe
OldandActiveItiswell-knownthatlifeexpectancyislongerinJapanthaninmostothercountries.A【C1】______reportals
Reliefworkerswereshockedbywhattheysaw.
Reliefworkerswereshockedbywhattheysaw.
随机试题
昆士兰热是由下列哪一种立克次体引起的
下列哪项是鹅口疮的口腔护理措施
A.涤痰汤合苏合香丸B.生脉注射液合参附注射液C.藿兰苍荷汤加减D.补阳还五汤加减E.酸枣仁汤加减急性一氧化碳中毒急性中毒期阴竭阳脱证的治疗方剂为
关于妊娠合并病毒性肝炎的说法.不正确的是
A.氢氯噻嗪B.米力农C.氯沙坦D.卡维地洛E.多巴酚丁胺
某办公楼工程招标发包,有多家符合相应资质条件的承包企业供建设单位选择。可供建设单位依法采用的发包方案有()。
使用家畜车或容积72立方米以下的40吨棚车,均按()吨计费。
在中国海域上,分布着众多岛屿,其中最大的为海南岛。()
自动消毒剂有红、黄、白三根管子,红色管子以每秒5克的流量流出浓度为20%的酒精溶液,黄色管子以每秒4克的流量流出浓度为25%的酒精溶液,白色管子以每秒6克的流量流出水。白管打开后开始8秒不流,接着流4秒;然后又停8秒,再流4秒……若将三管同时打开,1分钟后
黏膜下层无小唾液腺分布的是()。
最新回复
(
0
)