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
79
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
F
解析
本题考查的是对上下文之间的意义关系的理解及对文章逻辑关系的把握。空格(50)所在的段落是在讲人类的活动使地球表面发生了变化,并且该段谈论的焦点是land(土地),根据这一线索,我们发现选项中只有F项是与土地使用有关的,并且F项的开头两个词是such changes,这正好连接上了上文的意思,故选F。
转载请注明原文地址:https://kaotiyun.com/show/v9Qd777K
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
KnowingYourRealPersonalityfromSleepingPositionsEveryonehasgottwopersonalities—theonethatisshowntotheworld
WalkingBarefootCanHelpPreventSomeInjuriesWalkingbarefoothelpstoimprovebalance,postureandpreventcommonfootin
A.BreakthenewsascalmlyaspossibletochildrenB.BreakthenewsatyourownpaceC.Sharethegoodnewswithyourfriends
AWondersMadebyOurSickbutCharmingLittleGirlBHelpingaDoctortoSucceedCHeartsSaddenedbyaRareDisorderofOur
AMakingfriendswithnewacquaintancesBCloselinkbetweencompanionshipandbelongingnessCHowtosatisfyotherpeople’s
Kanwasabductedbecausehewastheonlywitness.
1.Cancerisadiseaseinwhichcellsmultiplywithoutcontrol,destroyhealthytissue,andendangerlife.About100kindsofca
A.alonglifeexpectancyformostpeopleB.artistsareadroitindealingwiththeirpaintingsubjectC.engageinthemedica
OldandActiveItiswell-knownthatlifeexpectancyislongerinJapanthaninmostothercountries.A【C1】______reportalso
GunRightsintheUSImmediatelyaftertheshootingatVirginiaTechUniversity,Americansgatheredtomournthedead.Thepresi
随机试题
下列哪项对哮与喘的鉴别诊断无意义
A.草绿色溶血环B.清晰透明的溶血环C.无溶血环D.形成菌膜E.出现沉淀细菌在血琼脂上三种类型溶血的特征为β溶血为菌落周围形成
关于先天性甲状腺功能减低症的治疗,以下哪项是错误的
信息的特点包括( )。
信托投资公司自1999年9月1日起不再从事股票承销业务。()
李某放假回老家,在乘坐客运汽车的途中,被车窗外飞进的一块小石头击中左眼球,当场出血,被送往就近医院治疗,但因伤情严重导致失明。李某要求运输公司赔偿,但运输公司拒绝赔偿,理由是:李某的伤是外来的原因造成的,运输公司没有过错。对于李某的伤,应该由谁来承担赔
瓷都:景德镇
有三个关系R、S和T如下:则由关系R和关系s得到关系T的操作是()。
HowardJohnson______abetterbrandoficecreamandanewwaytosellit.
A、ChildrenandTV.B、TVchildrenandtheirteachers.C、TVchildren’seducation.D、TVchildren’swork.C
最新回复
(
0
)