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
专升本
Many theories about the origin of the ocean have been proposed by scientists. The most widely accepted one is that the earth at
Many theories about the origin of the ocean have been proposed by scientists. The most widely accepted one is that the earth at
admin
2011-05-26
32
问题
Many theories about the origin of the ocean have been proposed by scientists. The most widely accepted one is that the earth at some time in its very early history became hot enough to melt the materials from which it was formed. While in this molten state, lighter rock-forming materials (造岩材料) floated on the surface of the heavier ones. Then, between four and a half four billion (十亿) years ago, the molten earth cooled sufficiently to form a crust of rock that was many miles thick.
Surrounding the earth was an unbroken canopy of clouds miles thick and made up mostly of water vapor. Rain falling toward the still-hot earth was heated to steam and rose to the clouds again. After many millions of years, as the earth continued to cool, its surface temperature fell below the boiling point of water. Rainwater could now remain on the earth, covering its whole surface except for the higher places on earth that had been formed from the lighter rock materials.
In 1970, scientists had pieced together evidence that the lighter rock materials had formed one huge continent by a vast ocean. Then, about 200 million years ago, the great continent began to break up, the pieces moving slowly apart.
The onrushing waters of the single huge ocean now entered and filled the spaces between the separating continents--and became the several oceans and seas we know today.
In the last sentence of the second paragraph, "the higher places on earth" refers to ______.
选项
A、the high mountains
B、the lighter rocks
C、the vast ocean
D、the great continent
答案
D
解析
根据第二段最后一句及第三段第一句,covering its whole surface except for the higher places on earth that had been formed from the lighter rock materials.In 1970,scientists had pieced together evidence that the lighter rock materials had formed one huge continent by a vast ocean可知“较高的地方”不可能指选项B和C;选项A文中未提及。
转载请注明原文地址:https://kaotiyun.com/show/tqqC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
阅读《米龙老爹》中的作品片段,回答问题。他一旦动手杀了那个骑兵以后,就念念不忘,一直想着:“杀普鲁士人!”他恨他们。他对他们怀着一个既贪财而又爱国的农民才会有的那种阴狠的、强烈的仇恨。正像他自己说的,他有他的主意。他等了几天。他对战胜者
Forthispart,youaresupposedtowritealetterin100-120wordsbasedonthefollowingsituation.假设你刚刚得到一份工作,但因某种原因不能按规定
Thisstorymentionscollegegraduatesat_______.Whichofthefollowingthingsdidnothappeninthefouryearsthattheclass
WhichofthefollowingstatementsisTRUE,accordingtotheauthor?ThenewFordcarsarecitedasanexampletoshowthat____
WhichofthefollowingstatementsisTRUE,accordingtotheauthor?Accordingtotheauthor,whoofthefollowingwouldbelabe
Thecaseforcollegehasbeenacceptedwithoutquestionformorethanageneration.Allhighschoolgraduatesoughttogo,says
IntheU.S.,peoplepreferwaitingforatabletosittingwithpeopletheydon’tknow.Thismeansahostessmaynotseatasmall
Therewasonceamanwhospentallhistimeinhisglasshouse.Flowerswashisname,andflowerswerehismainjoyinlife.Heg
Therewasonceamanwhospentallhistimeinhisglasshouse.Flowerswashisname,andflowerswerehismainjoyinlife.Heg
Thefood______delicious.
随机试题
陶渊明《饮酒》(其五)是一首()
下列关于水肿的说法,不正确的是
A.中央前回B.黑质一纹状体C.颞叶D.枕叶E.小脑帕金森病病损在
下列选项中,不属于“狭义法”范围的是()。
某企业拟投资兴建一生产项目。预计该生产项目的计算期(生命周期)为12年,其中建设期为2年,生产期为10年。项目投资的现金流量部分数据见表1.1。项目的折现率按照银行长期贷款年利率6.72%计算(按季计息)。短期贷款利率为5%。问题:(计算
属于施工质量控制中的事后控制工作的是()。
(2013年)周某与甲公司签订书面劳动合同,双方在合同中约定:劳动合同期限为1年,试用期3个月;劳动合同期限内,未经甲公司同意,周某不得单方面解除合同。入职时,甲公司还扣押了周某的身份证。某日下班后,周某在处理收尾性工作时,不幸被工场内的吊灯砸伤,住院治疗
甲公司为增值税一般纳税人,主要从事化妆品生产和销售业务。2020年10月有关经营情况如下:(1)进口一批美容面膜(市场售价30元/片),海关审定的货价为210万元,运抵我国关境内输入地点起卸前的包装费11万元、运输费20万元、保险费4万元;支付境内运费2万
下列说法中,所含光学知识原理达两种以上的是()。
Manytheoriesconcerningthecausesofjuveniledelinquency(crimescommittedbyyoungpeople)focuseitherontheindividualor
最新回复
(
0
)