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
Oceanography has been defined as "The application of all sciences to the study of the sea". Before the nineteenth century, s
Oceanography has been defined as "The application of all sciences to the study of the sea". Before the nineteenth century, s
admin
2017-11-17
31
问题
Oceanography has been defined as "The application of all sciences to the study of the sea".
Before the nineteenth century, scientists with an interest in the sea were few and far between. Certainly Newton considered some theoretical aspects of it in his writings, but he was reluctant to go to sea to further his work.
For most people the sea was remote, and with the exception of early intercontinental travelers or others who earned a living from the sea, there was little reason to ask many questions about it, let alone to ask what lay beneath the surface. The first time that the question "What is at the bottom of the oceans?" had to be answered with any commercial consequence was when the laying of a telegraph cable from Europe to America was proposed. The engineers had to know the depth profile (起伏形状) of the route to estimate the length of cable that had to be manufactured.
It was to Maury of the US Navy that the Atlantic Telegraph Company turned, in 1853, for information on this matter. In the 1840s, Maury had been responsible for encouraging voyages during which soundings (测探) were taken to investigate the depths of the North Atlantic and Pacific Oceans. Later, some of his findings aroused much popular interest in his book The Physical Geography of the Sea.
The cable was laid, but not until 1866 was the connection made permanent and reliable. At the early attempts, the cable failed and when it was taken out for repairs it was found to be covered in living growths, a fact which defied contemporary scientific opinion that there was no life in the deeper parts of the sea
Within a few years oceanography was under way. In 1872 Thomson led a scientific expedition(考察), which lasted for four years and brought home thousands of samples from the sea. Their classification and analysis occupied scientists for years and led to a five-volume report, the last volume being published in 1895.
"Defied" in the 5th paragraph probably means "_____".
选项
A、doubted
B、gave proof to
C、challenged
D、agreed to
答案
C
解析
词义推断题。当时的科学观点是海洋较深的地方不存在生命,而事实上在电缆表面发现了活的生物,由此可知这一事实对当时的科学观点提出质疑,故答案为C。
转载请注明原文地址:https://kaotiyun.com/show/zTa7777K
0
大学英语四级
相关试题推荐
A、Children’sfriends.B、Parentingstyles.C、Sleepinghabits.D、Learningconditions.B短文提到研究是在考虑一些因素之后才确定喝苏打水与侵略性行为有关联,其中提到家长的教养方
A、Itissignedbythestategovernment.B、Itcouldraisemoneyfromparents.C、Ithasbeendrawnuptoprotectchildren.D、Itco
Tasteissuchasubjectivematterthatwedon’tusuallyconductpreferencetestsforfood.Themostyoucansayaboutanyone’sp
HintsandTipstoSaveMoneyA)Spendless.Thisisnotoversimplifyingthebestwaytosavemoney!Itisessentialifyoua
Costly—sometimesabusive—creditcardsarebleedingmillionsofborrowerswhodidn’tknowwhattheyweregettinginto.Thebo
Intoday’seconomy,it’stoughenoughbeingarestaurantowner,butnowyouhavetosafeguardyourgarbage,too.FromCalifo
A、Hedidnotnoticeit.B、Hedrovetoofasttoreadit.C、Itsays45milesanhour.D、Itisnotclearlyvisible.A根据选项中的notnoti
Afewdegreescanmakeabigdifferencewhenitcomestofoodstorage.Foodscangobadiftheygettoowarm.Butformanyofth
HintsandTipstoSaveMoneyA)Spendless.Thisisnotoversimplifyingthebestwaytosavemoney!Itisessentialifyouar
随机试题
PASSAGEONE(1)WhenAndycametoShawshankin1948,hewasthirtyyearsold.Hewasashortneatlittlemanwithsandyhairan
什么叫拔缘?
社区医院最后一次访视时间为产后:
牙列缺失影响较小的是
设平面π的方程为2x一2y+3=0,以下选项中错误的是()。
期望5年内每年年初从银行提款10000元,年利率为10%,按复利计,期初应存入银行()。
下列关于信用期限的说法正确的有()。
毛泽东的诗词《卜算子·咏梅》中有“已是悬崖百丈冰,犹有花枝俏”的名句。这种写作方法被称为:
请说明为什么在定量研究中要进行定类、定序、定距、定比等变量的区分?在传播学研究中,请举例说明抽样调查、内容分析的研究对象分别有哪些。(北大2010研)
关于网络操作系统的描述中,正确的是()。
最新回复
(
0
)