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
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
2015-10-30
43
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(不愿意)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(探测)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.
The 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 communication
答案
A
解析
通读全文可看出,文章中心与主题在首段首句。因此选A。其他三项均是细节,不能用细节作为主旨大意题的答案。
转载请注明原文地址:https://kaotiyun.com/show/bVYC777K
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
ArecentstudyshowsthatmoreandmoreAmericansarechoosingtoworkathome.Thereareseveralreasonsforthechange.On
ArecentstudyshowsthatmoreandmoreAmericansarechoosingtoworkathome.Thereareseveralreasonsforthechange.On
Thestudentwhowantsanewspapercareerhasmuchhardworkaheadofhimbeforehecanbecomeevenacub,orbeginningreporter.
Itwasaveryhappyfamily.Thelifewasfairlywell-off.Father,Leopold,wasamusicmasterinAustria.Motherwaswarm-hearte
Itwasaveryhappyfamily.Thelifewasfairlywell-off.Father,Leopold,wasamusicmasterinAustria.Motherwaswarm-hearte
Ihadjustgonetobedafteraveryharddaywhenthephonerang.Itwasaneccentric(怪癖)farmer.Ihadnevermethimbeforealt
Ihadjustgonetobedafteraveryharddaywhenthephonerang.Itwasaneccentric(怪癖)farmer.Ihadnevermethimbeforealt
Ihadjustgonetobedafteraveryharddaywhenthephonerang.Itwasaneccentric(怪僻的)farmer.Ihadnevermethimbeforeal
Ihadjustgonetobedafteraveryharddaywhenthephonerang.Itwasaneccentric(怪僻的)farmer.Ihadnevermethimbeforeal
随机试题
以调节气机升降为主要作用的脏腑是
维果茨基提出的关于教育和教学的重要问题不包括()。
甄选成员面谈时提出的主要问题不包括()。
小学生注意的特点有哪些?
2014年,全社会用电量55233亿千瓦时。分产业看,第一产业用电量994.亿千瓦时,同比下降0.2%;第二产业用电量40650亿千瓦时,同比增长3.7%;第三产业用电量6660亿千瓦时,同比增长6.4%;城乡居民生活用电量6928亿千瓦时,同比增长2.2
智力技能的特点是______。
外汇汇率的直接标价是指以一定单位的外国货币为标准来计算应付出多少单位本国货币。()
廉租房
国外某教授最近指出,长着一张娃娃脸的人意味着他将享有更长的寿命,因为人们的生活状况很容易反映在脸上。从1990年春季开始,该教授领导的研究小组对1826对70岁以上的双胞胎进行了体能和认知测试,并拍下了他们的面部照片。在不知道他们确切年龄的情况下,三名研究
Anewanalysisoffederalmoneythatpublicschoolsreceiveforlow-incomestudentsshowsthatarecordnumberofthenation’ss
最新回复
(
0
)