首页
登录
职称英语
For hundreds of millions of years, turtles (海龟) have struggled out of the se
For hundreds of millions of years, turtles (海龟) have struggled out of the se
游客
2024-03-07
20
管理
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 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 turtles, notably loggerheads, 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 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 longline fishers (which can deploy thousands of hooks on lines that can stretch for miles) take a heavy toll 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 creature so ugly could have won so much affection. [br] 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 reproductively ability.
D、Contamination of sea water.
答案
B
解析
细节题。根据题干中的Elizabeth Griffin定位到原文第三段。该段第二句和第三句提到,根据格里芬的说法,虽然我们在保护海龟在陆地上度过的几周时间上做得很好,但我们忽略了它们在海洋中度过的岁月,威胁来自于商业捕鱼。故选B。
转载请注明原文地址:https://tihaiku.com/zcyy/3513007.html
相关试题推荐
A、Theychargethebatterytotravelhundredsofkilometers.B、Theychargetheba
Millionsofschool-leaversintherichworldareabouttobidatearfulgood
Millionsofschool-leaversintherichworldareabouttobidatearfulgood
Millionsofschool-leaversintherichworldareabouttobidatearfulgood
Millionsofschool-leaversintherichworldareabouttobidatearfulgood
Forhundredsofmillionsofyears,turtles(海龟)havestruggledoutofthese
Forhundredsofmillionsofyears,turtles(海龟)havestruggledoutofthese
[originaltext]Studentswhostruggledearlyonwithbasicreadingandmaths
Millionsofschool-leaversintherichworldareabouttobidatearfulgood
Millionsofschool-leaversintherichworldareabouttobidatearfulgood
随机试题
Formuchofitshistory,innumerableepigramshavebeencoinedaboutLondon
[originaltext]Weallscreamforwaterwhenthirsty.[9]Butdoyouknowinv
【教学过程】 (一)情境导入 1.教师给学生播放汶川地震与日本地震和核泄漏中解放军战士和各界人民携手救援的视频片段,提问学生:“通过观看视频,你有什么样
发生短路故障的具体原因()A.预防性试验不够仔细 B.鸟兽跨接在裸露的截流部
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性: A.如
从所给四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性: A.如图
以下墙面装修材料中燃烧性能为B2级的是()。A.天然木材、竹材、纸质装饰板、装
根据《土工合成材料应用技术规范》GB50290——98,当采用土工膜或复合土工
血吸虫卵主要栓塞于A.肺毛细血管 B.肾毛细血管 C.肝内门静脉分支 D.
单位活期存款账户中的一般存款账户不得办理()。 A.现金缴存B.借款业务
最新回复
(
0
)