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
考研
In the following text, some sentences have been removed. For Questions 1~5, choose the most suitable one from the list A~G to fi
In the following text, some sentences have been removed. For Questions 1~5, choose the most suitable one from the list A~G to fi
admin
2016-08-02
54
问题
In the following text, some sentences have been removed. For Questions 1~5, choose the most suitable one from the list A~G to fit into each of the numbered blanks. There are two extra choices, which do not fit in any of the blanks.
For the endangered North Atlantic right whale, these arc trying times. These leviathans who live and migrate in waters along the East Coast of North America teeter closer to the brink of extinction than perhaps any other whale species. Their population is tiny—less than 350—and continues to shrink.【C1】______
Yet for scientists and conservationists anxious about the future of these creatures, rays of hope are beginning to pierce an otherwise gloomy horizon. Thanks to a surge of scientific research and new tools for conducting it, they expect to learn far more about right whales, their interaction with the environment, and how to better protect them from their biggest threat: man.【C2】______
For the right whales, the leading causes of mortality are collisions with ships and encounters with fishing gear, researchers say. Females appear to have the toughest time surviving the range of human and natural threats. It’s these challenges scientists hope to address with a growing momentum in right-whale research.
【C3】______ Conservationists are working with governments and the shipping industry to move or control traffic on heavily used sea lanes that ships and whales share. And recent research is yielding potentially useful insights into the impact of factors ranging from water quality to shifts in climate.
"I’m not much of a Pollyannaj 1 can be very grumpy about the progress of right-whale biology and conservation," says Scott Kraus, director of research at the New England Aquarium in Boston. But "in the next couple of years we’re going to see a tremendous burst of very creative scientific energy" applied to fundamental biological and ecological questions surrounding the whales.
"When those questions get answered, we’ re going to have very specific ideas about what management strategies will reduce mortality and perhaps enhance reproduction," he says.
【C4】______ In principle, preventing "two female deaths a year would have a major impact on the prospects for the population," says Hal Caswell, a marine zoologist at the Woods Hole Oceanographic Institution in Woods Hole, Mass.
【C5】______
From 1500 to 1600, Basque whalers decimated right-whale populations in the eastern Atlantic, taking an estimated 25,000 to 40,000. In the late 1600s, by some accounts, it would have been possible to walk across Cape Cod Bay on the backs of whales. But by the mid-1700s, New Englanders had taken another 3,000, Mr. Kraus says. By the early 20th century, "only a few dozen whales survived in the western North Atlantic".
[A]If they can save a population this small, then it could boost hopes of saving other species from the unintended impact of humans on the environment.
[B]Yet achieving that means untangling a web of intertwined human and environmental factors that contribute to the whales’ plight. The one factor that weighs most heavily is human.
[C]In addition, researchers are exploring a number of acoustic approaches to avoiding ship-whale collisions. One technique scientists hope to test later this month involves the use of moored buoys that use passive sonar systems to listen for whales.
[D]To an outsider, the goal looks deceivingly within reach. The population is so small that it would take only modest pains in saving whales to help turn the situation around.
[E]That population had slowly rebuilt. Over the past 20 years, researchers have built an impressive collection of 250,000 photos—a catalog of some 460 North Atlantic right whales. Each animal bears unique growths of hardened skin, or callosities, in places where hair would appear on humans. The callosity patterns act as visual tags, allowing researchers to follow the whales’ life history.
[F]Later this month, for example, researchers are set to test new approaches to tracking the elusive whales in hopes of alerting ships to their presence. Meanwhile, chemists and engineers are developing whale-friendly commercial-fishing gear.
[G]By some estimates, if current population trends hold, the species will vanish within the next 200 years.
【C1】
选项
答案
G
解析
本题位于首段末尾,应从上文获取信息。前文的大意是露脊鲸当前的生存状况不佳,包括他们的生活区域环境不佳,物种数量正在减少,濒临灭绝。由此可以判断空白处应与上文相衔接,与露脊鲸的数量有关。因此选项G应为最佳选项。
转载请注明原文地址:https://kaotiyun.com/show/MboZ777K
0
考研英语一
相关试题推荐
Mostpeoplewoulddefineoptimismasbeingendlesslyhappy,withaglassthat’sperpetuallyhalffull.Butthat’sexactlythe
Manywilldoubttobaccoindustryclaimsthatitissharpeningitssciencetoevaluate"healthiercigarettes".Butthat’swhatwi
Perhapsthemostambitiouslong-termhealthstudyeverplannedbytheNationalInstitutesofHealth(NIH)hasbeenhitbyaNASA
A.EvaluateYourSystemB.DevelopaSystemofYourOwnC.MixBusinesswithPleasureD.NeverForgetYourResponsibilit
Don’ttalk:yourcellphonemaybeeavesdropping.Thankstorecentdevelopmentsin"spyphone"software,ado-it-yourselfspook
Aslongaspeoplehavelookedupatthenightsky,theyhavewonderedwhetherhumanityisaloneintheuniverse.ofplacesclose
Humanity’sgreatestaccomplishmentofthepastfivedecades,declaredBillGatesthisweek,isthereductioninthenumberofde
Anecdotalevidencehaslongheldthatcreativityinartistsandwriterscanbeassociatedwithlivinginforeignparts.Rudyard
Youarewhatyoueat,orsothesayinggoes.ButRichardWrangham,ofHarvardUniversity,believesthatthisistrueinamorep
Inresponsetoscandalsrockingthestudentloanindustry,theHousehasquicklypassedreformlegislationtorequiremorediscl
随机试题
男性,60岁。2年前曾因脑梗死住院治疗,此后常进食呛咳,1周前出现咳嗽、咳痰。体检:双下肺可闻及湿啰音,胸片示双下肺肺炎治疗上除抗感染等处理外,应
中药中存在较普遍的芳香族有机酸有
劳动者进入密闭空间作业时,用人单位应采取综合措施,消除或减少密闭空间的职业危害,下列关于密闭空间作业安全措施的说法中,错误的是()。
上海申申贸易公司从意大利进口一批“固本”牌钙片(保健品、预包装),则这批货物入境报检时,须出示的证件不包括( )。
甲公司2015年12月31口库存配件100套,每套配件的账面成本为12万元,市场价格为10万元。该批配件可用于加工100件A产品,将每套配件加工成A产品尚需投入17万元。A产品2015年12月31日的市场价格为每件28.7万元,估计销售过程中每件将发生销售
简述中学生语文学习的特点。
设z=f(x,y)二阶可偏导,,且f(x,0)=1,f’y(x,0)=x,则f(x,y)=_______.
[A]juice[B]friend[C]baby[D]sugar[E]guest[F]coffee[G]meatHe/Shepaysavisittoyourhouse.
Speech-acttheory*vasfirstdevelopedby______.
Everyprofessionortrade,everyart,andeverysciencehasitsowntechnicalvocabulary.The【C1】______ofthesetechnicalvocab
最新回复
(
0
)