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
About 3 billion people live within 100 miles of the sea, a number that could double in the next decade as humans flock to coasta
About 3 billion people live within 100 miles of the sea, a number that could double in the next decade as humans flock to coasta
admin
2020-03-31
52
问题
About 3 billion people live within 100 miles of the sea, a number that could double in the next decade as humans flock to coastal cities like gulls. The oceans produce $ 3 trillion of goods and services each year and untold value for the Earth’s ecology. Life could not exist without these vast water reserves—and, if anything, they are becoming even more important to humans than before.
Mining is about to begin under the seabed in the high seas—the regions outside the exclusive economic zones administered by coastal and island nations, which stretch 200 nautical miles offshore. Nineteen exploratory licences have been issued. New summer shipping lanes are opening across the Arctic Ocean. The genetic resources of marine life promise a pharmaceutical bonanza: the number of patents has been rising at 12% a year. One study found that genetic material from the seas is a hundred times more likely to have anti-cancer properties than that from terrestrial life.
But these developments are minor compared with vaster forces reshaping the Earth, both on land and at sea. It has long been clear that people are damaging the oceans—witness the melting of the Arctic ice in summer, the spread of oxygen starved dead zones and the death of coral reefs. Now, the consequences of that damage are starting to be felt onshore.
Thailand provides a vivid example. In the 1990s it cleared coastal mangrove swamps to set up shrimp farms. Ocean storm surges in 2011, no longer cushioned by the mangroves, rushed in to flood the country’s industrial heartland, causing billions of dollars of damage.
More serious is the global mismanagement of fish stocks. About 3 billion people get a fifth of their protein from fish, making it a more important protein source than beef. But a vicious cycle has developed as fish stocks decline and fishermen race to grab what they can of the remainder. According to the Food and Agriculture Organization(FAO), a third of fish stocks in the oceans are over-exploited; some estimates say the proportion is more than half. One study suggested that stocks of big predatory species—such as tuna, swordfish and marlin—may have fallen by as much as 90% since the 1950s. People could be eating much better, were fishing stocks properly managed.
The oceans are about to be explored because______.
选项
A、marine life has more medical value than land life
B、human beings have the right to explore the nature
C、they are unknown and mysterious to human being
D、the exploration will bring great economic benefits
答案
A
解析
根据题干中的oceans,about to be explored等信息定位到第二段第一句:Mining isabout to begin under the seabed in the high seas…其中mining…under the seabed对应oceans tobe explored。而人们探索海洋的原因出现在该段最后两句:The genetic resources of marine lifepromise a pharmaceutical bonanza.One study found that genetic material from the seas is a hundredtimes more likely to have anti—cancer properties than that from terrestrial life.即便看不懂The ge-netic resources of marine life promise a pharmaceutical bonanza这一句,我们至少能知道原因是因为marine life,而四个选项中唯有选项[A]出现了这个词,从而可以推断该项为答案。该句的pharmaceutical表示“制药的”,bonanza表示“富矿,财源”,总体上来说pharmaceutical bonanza相当于medical value,故选项[A]为答案。
转载请注明原文地址:https://kaotiyun.com/show/7I1Z777K
0
考研英语一
相关试题推荐
Nowondertheyarecalled"patients".Whenpeopleenterthehealth-caresystemsofrichcountriestoday,theyknowwhattheywil
Drones,originallydevelopedformilitarypurposes,weren’tapprovedforcommercialuseintheUnitedStatesuntil2013.Whenth
Mentionpricecartelsandmanypeoplewillthinkofbig,overtonesliketheoneOPECrunsforoilandthenow-extinctoneford
InJanuarycommutersvotedBirminghamNewStreetoneofBritain’sworstrailwaystations.Eachdaynearly150,000peoplemoveth
Readthefollowingtextandmatcheachofthenumbereditemsintheleftcolumntoitscorrespondinginformationintherightco
Theterme-commercereferstoallcommercialtransactionsconductedovertheInternet,includingtransactionsbyconsumersandb
Youarepreparingforyourgraduationthesisandareinurgentneedofsomereferencematerials.WritealettertotheNational
Whenpeopletalkaboutthedigitaldivide,theyusuallymeanthe【C1】______betweenpeoplewhoarebenefitingfromtheinformation
Whenpeopletalkaboutthedigitaldivide,theyusuallymeanthe【C1】______betweenpeoplewhoarebenefitingfromtheinformation
随机试题
《断魂枪》中描写眼睛“黑的像两口小井”“像两个香火头”的人物是()
具有润肺止咳、灭虱杀虫功效的药物是
一般中、小城市干道网密度的建议值是()km/km2。
常用的投标策略中,()是指一个工程项目总报价在基本确定后,通过调整内部各个项目的报价,以期既不提高总报价、不影响中标,又能在结算时得到更理想的经济效益。
静态炉窑与动态炉窑砌筑的不同点有()。
阅读下列材料,回答问题。“Myfriends”教学设计片段教材依据:PEP小学英语(四年级上册)Unit3PartBLet’stalk。知识目标:(1)让学生初步掌握Let’stalk中的句子
毛泽东同志毕生最突出、最伟大的贡献,就是领导我们党和人民()。
辛亥革命的历史意义是
已知向量β=(α1,α2,α3,α4)T可以由α1=(1,0,0,1)T,α2=(1,1,0,0)T,α3=(0,2,一1,一3)T,α4=(0,0,3,3)T线性表出.求α1,α2,α3,α4应满足的条件;
Thebuildingcollapsedbecauseitsfoundationwasnotstrongenoughto______theweightofthebuilding.
最新回复
(
0
)