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 l
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 l
admin
2009-08-13
64
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 accessible, hidden 【B1】 ______
beneath waters averaging over 3,600 meters deep. Totally without
light and subjected intense pressures hundreds of times greater 【B2】 ______
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 out space. 【B3】 ______
Therefore researchers have been taking samples of 【B4】 ______
deep-ocean rocks and sediments for over a century, the first
detailed global investigation of the ocean bottom did actually 【B5】 ______
start until 1968, with the beginning of the National Science
Foundation’s Deep Sea Drilling Project (BDSDP).
Used techniques first developed for the offshore, oil and 【B6】 ______
gas industry, the DSDP’s drill ship, the Glomar Challenger,
was able to maintain a steady position on the ocean’s surface
and drill very deep waters, extracting samples of sediments 【B7】 ______
and rock from the ocean floor.
The Glomar Challenger’s core samples have allowed
geologists to reconstruct that the planet looked like hundreds 【B8】 ______
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 with 【B9】 ______
the theories of plate construction and continental drift that
explain many of the geological processes that shape on the 【B10】 ______
Earth.
选项
答案
accessible→inaccessible
解析
首句指出海底面积广阔,至今大部分还未开发,未进行绘图。因此可以判断一个世纪之前,人们是无法到达深海海床的,accessible与上文语义矛盾,故改为其反义词。
转载请注明原文地址:https://kaotiyun.com/show/yBvO777K
0
专业英语八级
相关试题推荐
ArecentstudybytheCenterforEconomicPolicyResearchsaysthat,inordertoeaseimbalances,theEuropeanUnionneedstoma
Whatdoesthepassagemainlydiscuss?
WhyhavetheAmericansdevelopedspaceshuttleaccordingtothepassage?
MississippiisatypicalAmericansouthernstate.
WhatdidJimCantalupopromiseataWallStreetmeetingonApril7?
Whichcountryexertsmosteffortsineducationalreform?
WhatisthesimilaritybetweenDanoneandDeoleo?
Abluesedannearlysideswipesmycar.Thedrivergivesmeaweirdlook.Nowonder:I’matthewheelofaFordTaurus,withata
Howwelookandhowweappeartoothersprobablyworriesusmorewhenareinourteensorearlytwentiesthanatanyothertime
A、AlexatefruitforThanksgiving.B、Alexcamedowntoourhousefordinner.C、Alexwasabletogohomefortheholiday.D、Alex
随机试题
下列有关委付和代位求偿的表述,正确的是哪几项?()
建设项目经济评价的计算期是指()。
()是建设项目负责人在精神品德等方面的特征在具体行动中的体现。
道路交通事故中一次造成1-2人死亡,属于()事故。
立法体制主要是指( )。
"I’vebeenexpectingyou!"Marekrepeated,whenhehadseatedhisguestinacomfortableleatherchair.Nothingonearthwould
经过长期努力,中国特色社会主义进入了新时代,这是我国发展新的历史方位。中国特色社会主义进入新时代,意味着()
Pentium微处理器在实模式下,最小的段只有【】字节。
下列描述中正确的是
Iftheearthgetshotterinthenewcentury,whatwillhappentoanimalsandtheplantswhichanimalsdependonfor【B1】______?T
最新回复
(
0
)