首页
登录
职称英语
The ocean bottom— a region nearly 2.5 times greater than the total land area of
The ocean bottom— a region nearly 2.5 times greater than the total land area of
游客
2023-10-26
39
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 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 [br] 【C9】
选项
答案
L
解析
rapidly,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/3130351.html
相关试题推荐
[audioFiles]2018m2s/audio_ezfj_020_201802[/audioFiles]UnionsNearly100
Ourassociation,whichhasconsistentlypressedforgreateremploymentopportuni
UniversitiesintheUSThereare【T1】______intheUnitedStates.Nearlyh
UniversitiesintheUSThereare【T1】______intheUnitedStates.Nearlyh
UniversitiesintheUSThereare【T1】______intheUnitedStates.Nearlyh
UniversitiesintheUSThereare【T1】______intheUnitedStates.Nearlyh
UniversitiesintheUSThereare【T1】______intheUnitedStates.Nearlyh
UniversitiesintheUSThereare【T1】______intheUnitedStates.Nearlyh
UniversitiesintheUSThereare【T1】______intheUnitedStates.Nearlyh
UniversitiesintheUSThereare【T1】______intheUnitedStates.Nearlyh
随机试题
Inmoderntimes,severalpeople______(在那瀑布上走过,他们大多数是有意的).havegoneoverthatf
[audioFiles]audio_eufm_j01_106(200910)[/audioFiles]A、She’llmakeabetterwebsi
把收集到的原始质量数据按照一定的目的加以分类整理,再据此进行质量分析的质量分析图
任何一家市场参与者在进行买断式回购交易时单只券种的待返售债券余额应小于该只债券流
在财产保险合同有效期内,保险标的的危险程度显著增加的,被保险人应当按照合同约定及
多台电动机启动时应()。 (A)按容量从小到大启动;(B)逐一启
某机械加工企业下设四个生产车间生产加工同种类型和型号的产品,并以人均产量评价劳动
下面给定的是纸盒外表面的展开图,右边哪一项能由它折叠而成?请把它找出来。
《中药大辞典》载药A.约1746种 B.1892种 C.365种 D.57
患者,男,40岁,体健,每日吸烟1包,诊断为慢性牙周炎,经牙周系统及配合袋内局部
最新回复
(
0
)