还没有登录哦!

[Issue Essay]

试题详情

题目:

Analytical!

选项:

答案:

提问:

Years before the advent of plate tectonics―the widely accepted theory, developed in the mid-1960's, the holds that the major features of Earth's surface are created by the horizontal motions of Earth's outer shell, or lithosphere―a similar theory was rejected by the geological community. In 1912, Alfred Wegener proposed, in a widely debated theory that came to be called continental drift, that Earth's continents were mobile. To most geologists today, Wegener's The origin of Continents and Oceans appears an impressive and prescient document, containing several of the essential presumptions underlying plate tectonics theory: the horizontal mobility of pieces of Earth's crust; the essential difference between oceanic and continental crust; and a causal connection between horizontal displacements and the formation of mountain chains. Yet despite the considerable overlap between Wegener's concepts and the later widely embraced plate tectonics theory, and despite the fact that continental drift theory presented a possible solution to the problem of the origin of mountains at a time when existing explanations were seriously in doubt, in its day Wegener's theory was rejected by the vast majority of geologists. Most geologists and many historians today believe that Wegener's theory was rejected because of its lack of an adequate mechanical basis. Stephen Jay Gould, for example, argues that continental drift theory was rejected because it did not explain how continents could move through an apparently solid oceanic floor. However, as Anthony Hallam has pointed out, many scientific phenomena, such as the ice ages, have been accepted before they could be fully explained. The most likely cause for the rejection of continental drift―a cause that has been largely ignored because we consider Wegener's theory to have been validated by the theory of plate tectonics―is the nature of the evidence that was put forward to support it. Most of Wegener's evidence consisted of homologies―similarities of patterns and forms based on direct observations of rocks in the field, supported by the use of hammers, hand lenses, and field notebooks. In contrast, the data supporting plate tectonics were impressively geophysical―instrumental determinations of the physical properties of Earth garnered through the use of seismographs, magnetometers, and computers. 我选了E considerable overlap前面是despite XXX说明这个是个成就,他和后面的反对W的观点的事情是相反的。所以感觉D说用这个词的目的是解释为啥W理论。请老师辨析DE!谢谢!

解答:

点赞1
阅读268967
解答: 张慧雯

提问:

请问may老师此题思路

解答:

点赞0
阅读271153
解答: 徐小梅老师

提问:

想问一下c那个蓝色的解释是什么意思啊

解答:

点赞0
阅读270793
解答: 金栩竹老师

提问:

b为什么错了?c中to offer,不就没有谓语了吗

解答:

点赞0
阅读271114
解答: 金栩竹老师

提问:

想问一下这道题的a和b,enduring那块不是很懂

解答:

点赞0
阅读271438
解答: 金栩竹老师

提问:

想问一下e,car那个sell不应该是被动形式吗

解答:

点赞0
阅读271611
解答: 金栩竹老师

提问:

想问一下这个题什么意思?

解答:

点赞0
阅读271806
解答: 英吉老师

提问:

he 要和人一定要对应吗

解答:

点赞0
阅读272625
解答: 金栩竹老师

提问:

语法:想问一下这道题考点是什么? 我选b是因为我当时觉得bake alone 然后花时间更多的这两个说的是一件事,花时间多是bake alone的结果,所以没用and

解答:

点赞0
阅读272457
解答: 金栩竹老师

提问:

语法!b当中so不是连词,不会被当成两个句子吗? d哪里错了呢

解答:

点赞0
阅读272572
解答: 金栩竹老师

提问:

希望英吉老师批改一下寂静作文。

解答:

点赞0
阅读272176
解答: 英吉老师

问个问题

点我领取
免费专项课程
在线咨询