首页
登录
职称英语
The ocean bottom— a region nearly 2.5 times greater than the total land area
The ocean bottom— a region nearly 2.5 times greater than the total land area
游客
2023-10-22
9
管理
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 researchern 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 [br] 【C9】
选项
答案
L
解析
词义辨析题。根据词性,此处应当填入副词。根据该句中的词汇线索intense“剧烈的”,可推断:剧烈的化学和生物活动能在很短时间内毁灭大片地域。而表示其速度之快的最佳选项是rapidly。
转载请注明原文地址:https://tihaiku.com/zcyy/3120794.html
相关试题推荐
It’s______thecaseintheregion;astoryalwayssoundsclearenoughatadist
Idon’tthinkit’ssensibleofyouto________yourgreaterknowledgeinfronto
(1)Althoughnumbersofanimalsinagivenregionmayfluctuatefromyearto
(1)Althoughnumbersofanimalsinagivenregionmayfluctuatefromyearto
Aspreviouslysuspected,theinhabitantsoftheregionhadbeenhunter-gatherers
A.sufficientB.marginsC.nearlyD.barelyE.a
A.sufficientB.marginsC.nearlyD.barelyE.a
A.sufficientB.marginsC.nearlyD.barelyE.a
Hawaii’snativeminorityisdemandingagreaterdegreeofsovereigntyoveri
PassageTwo[br]WhatdidtheU.S.fearnearlyacenturyago?Thethreatstocomp
随机试题
Todayourknowledgeoffoodandwhatitdoesforourbodiesisfarmoreadva
在世界的舞台上,中国已经成为了一个不容忽视的经济强国。自中国政府1978年启动改革开放政策以来,中国的经济一直快速发展。过去十年,中国排名提升了四位,成
管理者在控制工作中可采取的处理措施有两种,一是纠偏,二是()。A.控制势态
A.hb B.cb C.ab D.ac
境内IPO市场包括() Ⅰ.中小企业板 Ⅱ.主板 Ⅲ.创业板A.Ⅰ B
A.药用部位为带叶的茎枝,气无,味淡微涩B.为三白草科植物的全草,味微涩C.为小
房地产抵押对房地产估价的需要,包括( )。A.增加抵押贷款 B.抵押期间对抵押
推出融资融券业务对资本市场发展的积极影响包括( )。A:证券市场形成做空机制
文明礼貌的具体要求是()。 (A)仪表堂堂(B)装扮时尚 (C)举止大度
工程方案及配套工程方案中防震抗震编制的内容包括( )。A.建筑规划 B.编制
最新回复
(
0
)