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
The news about the world’s oceans in 2003 wasn’t that they’re in trouble—that much was already clear—but that the scale of devas
The news about the world’s oceans in 2003 wasn’t that they’re in trouble—that much was already clear—but that the scale of devas
admin
2015-11-16
56
问题
The news about the world’s oceans in 2003 wasn’t that they’re in trouble—that much was already clear—but that the scale of devastation is far greater than anyone had realized. A shocking study revealed that a full 90 percent of the species most desirable to fishmongers—tuna, halibut, sharks, swordfish, grouper—has been wiped out in the past half century. But there was hopeful news as well. An alternative to conventional fishing practices, while not a cure-all, could significantly restore ravaged fish populations.
The chilling centerpiece of last year’s marine research: just 50 years of industrial fishing has decimated(大批杀害)the world’s large predator fish species, according to a report published in Nature in May by biologists at Dalhousie University in Halifax, Nova Scotia. Irresponsible fishing practices have inflicted severe casualties: Shrimp trawling in the Gulf of Mexico, for example, a reckless process in which, for every ton of shrimp procured, three tons of finfish are destroyed and discarded—has shrunk large fish stocks a thousand-fold. "Across the board we’ve removed everything bigger than a bicycle from the ocean," says Steve Palumbi, a Stanford University biologist, "and that has almost certainly changed the ocean in fundamental ways. "
But the urgent need for large-scale conservation efforts is on a collision course with economic pressures to expand fishing even further, according to a 2003 report by the Pew Oceans Commission, an independent expert panel funded by the Pew Charitable Trust, as well as preliminary reports from members of the Bush-appointed US commission on Ocean Policy. Americans are eating more seafood than ever: Consumption was up 7 percent in 2002, to 4.5 billion pounds. Worldwide, more than 130 billion pounds of marine species are caught annually, and that doesn’t include the huge amount of sea life destroyed as by catch. More than a billion people rely on fish for protein. " We need to change the whole ethic of how we are viewing the oceans," says Andrew Rosenberg, a member of the Commission on Ocean Policy, "from a place that we use to a place we care for. "
In September marine biologists Fiona Gell and Callum Roberts of the University of York in England offered a solution, boldly asserting in the journal Trends in Ecology and Evolution that at least 30 percent of the world’s ocean habitat must become safe zones for marine life. It’s a practical, not a sentimental matter, they contend. After studying 60 no-fishing zones around the world, Gell and Roberts discovered that the fish there live longer, grow larger, and produce more young than those in unprotected areas. Significantly, as populations grow, many fish head into less crowded areas outside the reserve, where fishermen reap the benefits indefinitely. "It’s a no-brainer, really, isn’t it?" observes Roberts. "Like money in the bank producing interest. "
In the author’s opinion, how to deal with the serious danger for marine species?
选项
A、Limiting the quantity of fishing.
B、Not eating too much fish in our lives.
C、Offering at least 30 percent of the world’s ocean habitat as safe zones for marine life.
D、Using advanced tools to distinguish the aimed species.
答案
C
解析
根据第四段第一一句可知,世界上海洋至少30%的环境必须成为海洋生物的安全栖息地,因此,C)“世界海洋环境至少提供30%的海洋生物的安全栖息地”正确。
转载请注明原文地址:https://kaotiyun.com/show/0lQ7777K
0
大学英语六级
相关试题推荐
Ataneventwherealleyesareonnewcarsfromworld-classdesigners,buddingautomotivedesignersaregettingtheirfeetwetw
A、Sheisondietrecently.B、Sheloveseatingcupcakes.C、Shehastolosemoreweight.D、Shewillspendallhermoneyoncupcake
A、Childrenonlyhaveoneortwofriends.B、Childrenhavelessselectiontochooseafriend.C、Childrenhavemorefriends.D、Chil
Womenwhoexerciseinpregnancyboostthebraindevelopmentoftheirnewbornbabies,accordingtoresearcherswhoclaimtheeffe
Left-handershavebeenthesubjectofcuriosity,stigmaandevenfearoverthecenturies.Researchersnow,however,arerecogniz
ABritishstudyhasfoundthatBvitaminscanreducebrainshrinkageinolderpeoplewithmildmemoryloss.It【B1】______thatBv
Recently,anearlydecadeoldpaperontheeconomiceffectsofhumancloningbyaFrencheconomicsprofessorhasbeengettingso
A、Healreadyknowsalotaboutpainting.B、Hehopestobecomeapaintersomeday.C、He’snotveryfamiliarwithpainting.D、Heh
Whenanewmovementinartattainsacertainfashion,itisadvisabletofindoutwhatitsadvocatesareaimingat,for,howeve
ThinkorSwim:CanWeHoldBacktheOceans?A)Astheworldgetswarmer,sealevelsarerising.Ithasbeenhappeningatasnail’
随机试题
高钾血症的治疗措施包括:()
肝癌筛查首选的影像学检查是()
下列用来评价混悬剂的物理稳定性的是
A.由原发证部门吊销其执业证书B.由其所在医疗机构取消其麻醉药品和第一类精神药品处方资格;造成严重后果的,由原发证部门吊销其执业证书C.由其所在医疗机构取消其麻醉药品和第二类精神药品处方资格;造成严重后果的,由原发证部门吊销其执业证书D.由药品
下列判断中,正确的是()。
导游证的有效期为5年。()
“六十年像长河,有缓流也有急流;六十年像画卷,有暖色也有冷色;六十年像乐曲,有高音也有低音;六十年像史诗,有欢乐也有痛苦。”新中国建国六十年历程体现了()。
国务院是我国最高国家权力机关。()
关于真理与谬误的辩证关系,下列选项中正确的是()
Ididn’tknowhecameback______Imethiminthestreet.
最新回复
(
0
)