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
For hundreds of millions of years, turtles(海龟) have struggled out of the sea to lay their eggs on sandy beaches, long before the
For hundreds of millions of years, turtles(海龟) have struggled out of the sea to lay their eggs on sandy beaches, long before the
admin
2017-11-14
43
问题
For hundreds of millions of years, turtles(海龟) have struggled out of the sea to lay their eggs on sandy beaches, long before there were nature documentaries to celebrate them, or GPS satellites and marine biologists to track them, or volunteers to hand-carry the hatchlings (幼龟) down to the water’ s edge lest they become disoriented by headlights and crawl towards a motel parking lot instead. A formidable wall of bureaucracy has been erected to protect their prime nesting sites on the Atlantic coastlines. With all that attention paid to them, you’d think these creatures would at least have the gratitude not to go extinct.
But Nature is indifferent to human notions of fairness, and a report by the Fish and Wildlife Service showed a worrisome drop in the populations of several species of North Atlantic sea turtles, notably loggerheads (红海龟) , which can grow to as much as 400 pounds. The South Florida nesting population, the largest, has declined by 50% in the last decade, according to Elizabeth Griffin, a marine biologist with the environmental group Oceana. The figures prompted Oceana to petition the government to upgrade the level of protection for the North Atlantic loggerheads from "threatened" to "endangered"—meaning they are in danger of disappearing without additional help.
Which raises the obvious question: what else do these turtles want from us, anyway? It turns out, according to Griffin, that while we have done a good job of protecting the turtles for the weeks they spend on land (as egg-laying females, as eggs and as hatchlings) , we have neglected the years they spend in the ocean. "The threat is from commercial fishing," says Griffin. Trawlers (which drag large nets through the water and along the ocean floor) and long-line fishers (which can deploy thousands of hooks on lines that can stretch for miles) take a heavy toll(损失) on turtles.
Of course, like every other environmental issue today, this is playing out against the background of global warming and human interference with natural ecosystems. The narrow strips of beach on which the turtles lay their eggs are being squeezed on one side by development and on the other by the threat of rising sea levels as the oceans warm. Ultimately we must get a handle on those issues as well, or a creature that outlived the dinosaurs (恐龙) will meet its end at the hands of humans, leaving our descendants to wonder how a creature so ugly could have won so much affection.
What constitutes a major threat to the survival of turtles according to Elizabeth Griffin?
选项
A、Their inadequate food supply.
B、Unregulated commercial fishing.
C、Their lower reproductive ability.
D、Contamination of sea water.
答案
B
解析
细节题。第三段倒数第二句援引Elizabeth Griffin的话指出,真正的威胁来自商业捕捞;最后一句又进一步补充说明:对于海龟来说,拖捞船和长线捕鱼对它们是沉重的打击。由此可见,B项为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/uaIZ777K
0
考研英语一
相关试题推荐
TheethicaljudgmentsoftheSupremeCourtjusticeshavebecomeanimportantissuerecently.Thecourtcannot【C1】______itsleg
Peopleare,onthewhole,pooratconsideringbackgroundinformationwhenmakingindividualdecisions.Atfirstglancethismigh
ShoppinghabitsintheUnitedStateshavechangedgreatlyinthelastquarterofthe20thcentury.【C1】______inthe1900smostAm
WhenPaulGorski,thefounderofanorganizationcalledEdChange,visitscollegesanduniversitiestoadvisethemoncampusdive
WhenPaulGorski,thefounderofanorganizationcalledEdChange,visitscollegesanduniversitiestoadvisethemoncampusdive
WhenPaulGorski,thefounderofanorganizationcalledEdChange,visitscollegesanduniversitiestoadvisethemoncampusdive
WhenPaulGorski,thefounderofanorganizationcalledEdChange,visitscollegesanduniversitiestoadvisethemoncampusdive
Bettingagainstanindustrywithaddictsforcustomerscarriesobviousrisks.【C1】______theseareuncertaintimesforBigTobacco
Bettingagainstanindustrywithaddictsforcustomerscarriesobviousrisks.【C1】______theseareuncertaintimesforBigTobacco
Thehighestanxietymomentintheholidayseasonmustbethemomentjustbeforeyourlovedonesunwraptheirgifts.Theribbonc
随机试题
经济法是调整国家在自由社会经济的过程中所发生的经济关系的法律的总称。
提出“文章合为时而著,歌诗合为事而作”这一主张的作家是()
将蛋白质类食物通过胃瘘直接放入胃内引起胃液分泌的特点是
A、利尿剂B、ACEIC、钙通道阻滞剂D、β受体阻滞剂E、ARB患者女性,65岁,无糖尿病,有支气管哮喘病史1年余,血压升高1年,最高达160/80mmHg,选择降压药物时禁用
A.脊髓B.延髓C.中脑D.下丘脑E.大脑皮层体温调节中枢位于
图示桁架结构杆①的轴力为:
背景资料在机电工程项目公开招标中,有A、B、C、D、E、F、G、H等施工单位报名投标,经监理单位资格预审均符合要求,但建设单位以A施工单位是外地企业为由不同意其参加投标,而监理单位坚持认为A安装单位有资格参加评标。评标委员会由5人组成,其中当地建
企业内部的审批通常是由()主持编制,报企业组织管理层批准,并报送项目监理机构核准确认。
甲、乙、丙、丁共同出资设立一普通合伙企业。两年后,甲、乙转变为有限合伙人。此前,合伙企业有20万元债务到期未还,至合伙企业因资不抵债而被宣告破产时仍未清偿。下列关于该债务清偿责任的表述中,符合合伙企业法律制度规定的是()。
编写如下程序:PrivateSubCommand1_Click()Dima(3,3)AsInteger,b(3,3)AsIntegerFori=1To3Forj=1To3a(i,j)=i+j:b(i,j)=a(i,j)+i*
最新回复
(
0
)