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
The 60th anniversary of the expedition that first took humans to the highest spot on earth—the peak of Everest—was widely celebr
The 60th anniversary of the expedition that first took humans to the highest spot on earth—the peak of Everest—was widely celebr
admin
2022-11-01
90
问题
The 60th anniversary of the expedition that first took humans to the highest spot on earth—the peak of Everest—was widely celebrated seven years ago. The 60th anniversary of the first expedition to its deepest point has gone almost unnoticed. Yet that trip to the bottom of the Challenger Deep, at the southern end of the Mariana Trench in the Pacific Ocean, was an equally remarkable feat and has rarely been repeated.
While thousands of climbers have since climbed Everest in the footsteps of Tenzing Norgay and Edmund Hillary, only two more people have followed the route of Jacques Piccard and Don Walsh, who reached the bottom in 1960. It was not until 2012 that film-maker James Cameron conducted a solo dive to the almost 11km-deep valley, collecting samples and video. Last year, explorer Victor Vescovo followed suit.
True, other reaches, not quite as distant, have been better explored. But though more than half the world is covered by ocean more than 200m deep—the point at which the sunlight fades and one enters the twilight zone—it was not until 1930 that humans reached the deep sea for the first time. Though scientists have since discovered extraordinary creatures and features, much remains to be discovered.
The reaches of the sea beneath 6km are known as the hadal zone, taking their name from the underworld of the ancient Greeks: the depth of the Mariana Trench ensures it is perpetually dark, and that temperatures are only just above freezing. Yet we are discovering that if it is an inhospitable space for humans, it is far from deserted. Four years ago, a live video feed from a remotely operated vessel allowed ordinary viewers to see the abundant, though "not very diverse", life to be found down there. The area now enjoys protection, escaping unscathed after it was listed as one of the 27 national monuments that Donald Trump placed under review in 2017.
Other parts of the deep sea are at immediate risk. Even as researchers increase their ability to explore this world, the race is on to exploit it. An analysis published last month in the journal One Earth warned of the threat to the oceans from "blue acceleration", the recent rise in marine industrialization, which includes seabed mineral mining.
Greenpeace warned last year that 29 ocean-floor exploration licences had been issued, covering an area totaling 1.3 million sq km—threatening to worsen the climate emergency by disrupting carbon stores in seafloor sediments, as well as destroying barely explored habitats that might offer extraordinary scientific insights and even new medicines. Though the UN is supposed to wrap up a global ocean treaty this year, many campaigners are pessimistic about the prospect of it offering the kind of protection they believe is needed. Governments must do better. To fall short would not only threaten the habitats and creatures of the deep, but humans too, however unlikely most of us are to ever venture down there.
Which of the following is true of the hadal zone?
选项
A、It is a liveable space for humans to live.
B、It allows people to see abundant life there.
C、Its name comes from the depth of the trench.
D、It fails to pass the national monuments review.
答案
B
解析
根据题干关键词the hadal zone定位至第四段。该段第三句提到a live video feed from a remotely operated vessel allowed ordinary viewers to see the abundant…life to be found down there.(一艘远程操控的船只通过一段实时视频,就让普通观众看到了海底丰富……的生物种类),由此可知,选项[B]It allows people to see abundant life there.“在这里人们可以看到丰富的生物”为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/zMMD777K
0
考研英语一
相关试题推荐
Skepticsofhighereducationoftencomplainthatuniversitiesoffertoomanyboringdegreeswithlittlevalueintheworkplace.【
SupposeyouarepreparingforCET-6andneedsomereferencebooks.Writeanemailtothesalesdepartmentofabookstore,to1)
Nobodyeverproteststhatanelementaryschoolshouldbedescribedas"manned"insteadof"staffed,"butdaretosuggesta"men
ManyAmericanshavebeenfeedingababyaspirinonceaday,believingitwouldprotectthemfromaheartattack,astroke,ande
Thinnerisn’talwaysbetter.Anumberofstudieshave【C1】________thatnormal-weightpeopleareinfactathigherriskofsomedi
SupposeyouareamemberoftheStudents’Unionandyouruniversitywillholdanexperiencesharingmeetingaboutthepostgradua
Ifsustainablecompetitiveadvantagedependsonworkforceskills,Americanfirmshaveaproblem.Humanresourcemanagementisn
Ifsustainablecompetitiveadvantagedependsonworkforceskills,Americanfirmshaveaproblem.Humanresourcemanagementisn
Justsevenyearsago,theTexasLegislatureprescribedthatallhighschoolersmustpasstwomathcoursesandgeometrytogradua
Doesthelanguagewespeakdeterminehowhealthyandrichwewillbe?NewresearchbyKeithChenofYaleBusinessSchoolsuggest
随机试题
一般来说,元认知策略可分为()
论述俄国1861年农奴制改革的原因、内容和意义。(南京大学1999年世界近现代史真题;南开大学2002年世界近现代史真题;华中师范大学2002年世界近现代史真题;南京大学2003年世界史真题;华南师范大学2004年世界近现代史真题;南京大学2005年世界史
关于砌体基础施工技术,下列说法正确的有()。
一般代理指的是()
Fromthebeginningrivershaveplayedanimportantpartinthelifeofman.Manoftheearliesttimesusedtheriversasameans
诊断腹腔内实质性脏器损伤的主要依据是
【2012年第3题】题1~5:某小型企业拟新建检修车间、办公房屋和10/0.4kV车间变电所各一处。变电所设变压器一台,车间用电负荷及有关参数见下表。为了限制并联电容器回路的合闸涌流,拟在低压电容器组的电源侧设置串联电抗器,请问此时电抗率应该选择下列
在这个图形中共有多少个正方形?
《学记》
Thetraditionalappealoftheincometaxhascomefromitswideacceptance,asafairtax,closelyrelatedtoanindividual’sa
最新回复
(
0
)