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[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:

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解答: 张慧雯

提问:

请问may老师,这题该用什么思路来做?

解答:

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阅读146221
解答: 徐小梅老师

提问:

请问张老师,这道题为什么D不对?我有我觉得second paragraph最后一句话特别指向D

解答:

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阅读153329
解答: 张慧雯老师

提问:

请问老师,这道题为什么second part是”evidence”? 还有、不确定First part到底是background info还是premise?

解答:

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阅读155343
解答: 张慧雯老师

提问:

请问老师,这道quant题应该如何快速算?

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阅读155250
解答: 徐小梅老师

提问:

请问老师,这题我选E因为前面作者讲过 “asset sharing alliances aim at cost efficiencies”。我以为inference题目一般都要找原文来选答案。请问这个思路哪里不对了吗?

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解答: 张慧雯老师

提问:

怎么解出

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阅读191473
解答: 徐小梅老师

提问:

第二问里的most of 怎么界定啊,四个里有两个也能是most of 吗

解答:

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解答: 徐小梅老师

提问:

为什么答案是C啊,第二个式子取n=1是不对的吧

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解答: 徐小梅老师

提问:

1990-2005年 zyx的乡村地区能喝到干净水的人增加。很明显是国家提高了基础设施建设。寻找一个反对这个推理 感觉五个选项没有一个是对的,我选的b我知道它不对 但是d选项我推不出来,想听相关性解法

解答:

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解答: 张慧雯老师

提问:

能理解a 不知道b为什么也可以

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解答: 徐小梅老师

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