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 ocean bottom — a region nearly 2. 5 times greater than the total land area of the Earth — is a vast frontier that even today
The ocean bottom — a region nearly 2. 5 times greater than the total land area of the Earth — is a vast frontier that even today
admin
2017-04-09
28
问题
The ocean bottom — a region nearly 2. 5 times greater than the total land area of the Earth — is a vast
frontier
that even today is largely unexplored and uncharted. Until about a century ago, the deep-ocean floor was completely
inaccessible
, hidden beneath waters averaging over 3, 600 meters deep. Totally without light and subjected to intense pressures hundreds of times greater than at the Earth’s surface, the deep-ocean bottom is a hostile environment to humans, in some ways as forbidding and remote as the void of
outer space
.
Although researchers have taken samples of deep-ocean rocks and sediments for over a century, the first detailed global investigation of the ocean bottom did not actually start until 1968, with the beginning of the National Science Foundation’s Deep Sea Drilling Project (DSDP). Using techniques first developed for the offshore oil and gas industry, the DSDP’s drill ship, the Glomar Challenger, was able to maintain a steady position on the ocean’s surface and drill in very deep waters,
extracting
samples of sediments and rock from the ocean floor.
The Glomar Challenger completed 96 voyages in a 15-year research program that ended in November 1983. During this time, the vessel logged 600, 000 kilometers and took almost 20, 000 core samples of seabed sediments and rocks at 624 drilling sites around the world. The Glomar Challenger’s core samples have allowed geologists to reconstruct what the planet looked like hundreds of millions of years ago and to calculate what it will probably look like millions of years in the future. Today, largely on the
strength
of evidence gathered during the Glomar Challenger’s voyages, nearly all earth scientists agree on the theories of plate tectonics and continental drift that explain many of the geological processes that shape the Earth.
The cores of sediment drilled by the Glomar Challenger have also yielded information critical to understanding the world’s past climates. Deep-ocean sediments provide a climatic record stretching back hundreds of millions of years, because
they
are largely isolated from the mechanical erosion and the intense chemical and biological activity that rapidly destroy much land-based evidence of past climates. This record has already provided insights into the patterns and causes of past climatic change — information that may be used to predict future climates.
The word "inaccessible" underlined in Paragraph 1 is closest in meaning to________.
选项
A、unrecognizable
B、unreachable
C、unusable
D、unsafe
答案
B
解析
词义题型。inaccessible达不到的,难以接近的;unreachable不能达到的;unrecognizable未被承认的;unusable不能用的;unsafe不安全的,危险的。
转载请注明原文地址:https://kaotiyun.com/show/EEMO777K
本试题收录于:
CATTI二级笔译综合能力题库翻译专业资格(CATTI)分类
0
CATTI二级笔译综合能力
翻译专业资格(CATTI)
相关试题推荐
Cultureisactivityofthought,andreceptivenesstobeautyandhumanefeeling.【C1】________ofinformationhavenothingtodowit
Newtechnologylinkstheworldasneverbefore.Ourplanethasshrunk.It’snowa"globalvillage"wherecountriesareonlyseco
AfamilydoctorchargedtheNightHomeService(NHS)morethan£500,000insevenyearsfornightvisitsthathispatientsdidno
Thecentralprovinceshavefloodsinsomeyears,andothersdroughts.
Ithinktheexistingcompaniesusuallyencouragetheso-called"provenway",somethingthathasworkedbefore,insteadofinnov
A:Mr.Smith,it’sapleasuretotalkwithyouaswellasChineseandforeignfriendsaboutShakespeareandTangXianzu.Theset
A、Theauditoryregion.B、Theareatomakecomparisons.C、Theareaatthefrontofthebrain.D、Theareaattheleftsideofthe
A、正确B、错误A推理判断题。根据原文Politicallythewaterwaysystemunitedthenationinawayfewhadimaginedpossible,bythemid-1800s,faste
Smallcommunities,withtheirdistinctivecharacter—wherelifeis【C1】________andintenselyhuman—aredisappearing.Somehave【C2】
Aninitialsurveyof2,000UKemployeesrevealedthathalfregularlylistentomusic【C1】______.Someofthoseemployees’bosses
随机试题
ThedifferencesbetweenChineseandwesternsocietycan______misunderstandings.
对胆囊结石患者,目前最好的治疗方法是
桥体固定连接体
下面关于历史文化名城保护规划与城市总体规划的关系,下列表述不正确的是()。
对于水电站建筑物中的压力前池,下列说法正确的是()。
劳动合同
在WX模式中,经营者每年风险工资收入的(),应用于增加风险抵押金。
A:How’stheyoungman?B:______.
∫(x-1)/(2x2+x-1)dx.
在已建"职工"表中有姓名、性别、出生日期等字段,查询并显示所有年龄在50岁以上职工的姓名、性别和年龄,正确的SQL命令是
最新回复
(
0
)