首页
登录
职称英语
Oceanography has been defined as "The application of all sciences to the stu
Oceanography has been defined as "The application of all sciences to the stu
游客
2024-01-26
8
管理
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. [br] This passage is mainly about_____.
选项
A、the beginnings of oceanography
B、the laying of the first undersea cable
C、the investigation of ocean depths
D、the early intercontinental communications
答案
A
解析
主旨题。通读全文可知,oceanography(海洋学)是全文的中心词,本文主要讲述海洋学是如何起步的,故答案为A。B、C只表述了原文中个别细节,并非主题;D跟全文无关。
转载请注明原文地址:https://tihaiku.com/zcyy/3396340.html
相关试题推荐
AnApplicationforFurtherStudiesDirections:Forthispart,youareal
Oceanographyhasbeendefinedas"Theapplicationofallsciencestothestu
Oceanographyhasbeendefinedas"Theapplicationofallsciencestothestu
Oceanographyhasbeendefinedas"Theapplicationofallsciencestothestu
Oceanographyhasbeendefinedas"Theapplicationofallsciencestothestu
Forthispart,youareallowed30minutestowriteanapplicationletter.Yoush
Forthispart,youareallowed30minutestowriteanapplicationletterfor
Femaleapplicantstopostdoctoralpositionsingeoscienceswerenearlyhalf
Femaleapplicantstopostdoctoralpositionsingeoscienceswerenearlyhalf
Femaleapplicantstopostdoctoralpositionsingeoscienceswerenearlyhalf
随机试题
Thereisabigdifferencebetweentownlifeand【D1】__________inEngland.
关于基本卫生保健的原则不正确的是()A.合理布局 B.综合利用 C.社
某大桥桥宽26m,与路基同宽。桥长1216m,两岸各接线500m,地势较为平坦(
患者因上唇红肿1周,发热3天就诊。查体温39℃,上唇肿胀呈紫红色,有脓,触痛,下
为昏迷患者进行口腔护理时,不需要准备的用品是( )A.棉球 B.血管钳 C
临床上最常见的类白血病反应的类型是A.中性粒细胞型B.嗜碱性粒细胞型C.嗜酸性粒
仲裁庭的组成人数为()。A:1 B:2 C:3 D:4 E:5
关于静脉补钾的浓度叙述正确的是A.静脉推注0.3‰氯化钾 B.静脉滴注0.3%
材料: 王老师从踏入讲台的第一天起,就立下了“当园丁培育百花,做黄牛无私奉献”
某系统由A、B两个部分组成,两部分工作相互独立,且两部分均失效才能导致系统失效,
最新回复
(
0
)