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 is
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
admin
2020-06-05
30
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【C1】______unexplored and uncharted. Until about a century ago, the deep-ocean floor was completely【C2】______, hidden beneath waters averaging over 3,6000 meters deep.
Although researchers have taken samples of deep-ocean rocks and sediments(沉积物 ) for over a century, the first detailed global【C3】______of the ocean bottom did not actually start until 1968. Using techniques first developed for the offshore oil and gas industry, the DSDP’s drill ship called the Glomar Challenger, was able to maintain a steady position on the ocean’s surface and drill in very deep waters,【C4】______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 took almost 20,000 core samples of seabed sediments and rocks around the world. The Glomar Challenger’s core samples have allowed geologists to【C5】______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【C6】______ 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【C7】______processes that shape the Earth.
Deep-ocean sediments provide a climatic record【C8】______back hundreds of millions of years, because they are largely isolated from the mechanical erosion and the intense chemical and biological activity that【C9】______destroy much land based evidence of past climates. This record has already provided【C10】______into the patterns and causes of past climatic change — information that may be used to predict future climates.
A. stretching B. observation C. strength D. manufacture
E. investigation F. largely G. extracting H. available
I. geological J. insights K. drawing L. rapidly
M. physical N. reconstruct O. inaccessible
【C2】
选项
答案
O
解析
inaccessible,词义辨析题。根据词性,此处应当填入形容词。易混淆的选项是inaccessible“达不到的,难见到的”和available“可获得的;能找到的”,而根据后面的词汇线索hidden beneath(隐于下面)推断,处于水下36000米深的洋底是完全不可触及的。
转载请注明原文地址:https://kaotiyun.com/show/bFCK777K
0
专业英语四级
相关试题推荐
HarvardPresident’sAddress:aDifferentLife1.Students’wonderWhat【T1】wouldbelike【T1】______2.Whatshouldstudentsunder
Goodmorning,everyoneandwelcometotheEnglishforAcademicPurposesCenter.I’dliketobeginbybriefly【T1】______theservi
HeatStressThemostcommonhealthproblem【T1】______hotweatherisheatstress.The【T2】______ofheatstressincludewearing
A.forB.vocabularyC.numerousD.endlessE.graduallyF.activeG.rapidlyH.surprisinglyI.talkedaboutJ.result
A.disgracefulB.imperfectC.holdD.considerationE.approvedF.accordinglyG.nakedH.wanderingI.incorrectJ.ignora
Ifyouareasuccessfullanguagelearner,you______independently,actively,andpurposefully.
Obviously,theChairman’sremarksattheconferencewere______andnotplanned.
A、Spendmoretimeonthecollegepremises.B、Getusedtoworkingindependently.C、Workharderthantheydidatschool.D、Underst
(1)Whendoeshistorybegin?Itistemptingtoreply"Inthebeginning",butlikemanyobviousanswers,thissoonturnsouttobe
随机试题
按照防火墙保护网络使用方法的不同,防火墙可分为应用层防火墙和_____。
休克时细胞最易损伤的部位是________,主要改变为________。
心肌梗死后综合征
斜坡上的岩土沿坡内一定的软弱面(或带)作整体地向前向下移动的现象称为()。
某建设项目有甲、乙、丙三个实施方案,有关资料见下表,当总成本由大到小的排序是乙、甲、丙时,年产量区间是( )。
职业健康安全与环境管理体系文件的特点不包括( )。
《劳动合同法》的立法宗旨是:完善劳动合同制度,明确劳动合同双方当事人的权利和义务,保护()的合法权益,构建和发展和谐稳定的劳动关系。
我没有摘花的习惯。我只是伫立凝望,觉得这一条紫藤萝瀑布不只在我眼前,也在我心上缓缓流过。流着流着,它带走了这些时候一直压在我心上的焦虑和悲痛,那是关于生死谜、手足情的。我浸在这繁密的花朵的光辉中,别的一切暂时都不存在,有的只是精神的宁静和生的喜悦。
请从所给的四个选项中,选择最合适的一个填入,使之呈现一定的规律性()
SomecallittheSmartShooter,anewrifleforAmericaninfantrytroopsthatistwoweaponsinone,isaccurateupto1,000yar
最新回复
(
0
)