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[Issue Essay]

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题目:

Analytical!

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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!

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阅读269373
解答: 张慧雯

提问:

王文静老师您好!这道题目我看不出考点,我做题的思路一个是conclude后面跟by还是with,没想到可以to。然后impose不知道是哪个形式比较好?求老师指教

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解答: 王文静老师

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王文静老师您好,这道题目我做题的时候看到了and想到了可能是考平行,但是我记得之前做题好像and后面再加that的话句子算redudant,that..and that这种结构是固定结构吗?求老师指教,谢谢

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解答: 王文静老师

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请郭老师解答 谢谢

解答:

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解答: 郭培月老师

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请郭老师解答 谢谢

解答:

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解答: 郭培月老师

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请郭老师解答 谢谢

解答:

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解答: 郭培月老师

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请郭老师解答 谢谢

解答:

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解答: 郭培月老师

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请郭老师解答 谢谢

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解答: 郭培月老师

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请郭老师解答 谢谢

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阅读261298
解答: 郭培月老师

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请郭老师解答 谢谢

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阅读260994
解答: 郭培月老师

提问:

麻烦老师帮我解决一下这一题,看ABCD这个走向,它主要是想进一步说明一下w是怎么样的。A主要是错在where 不能修饰society CD主要错在就近修饰W的话,主谓不一致。E答案,犹豫了一下,就是living按照语法规则修饰到yellow也是合理的,所以E被排除掉的理由是从and这个并列上来看,是因为it 没有能指代的名词吗?因为前面不管是YJ 还是SPECIES 或 w都是复数的形式

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阅读261668
解答: 金栩竹老师

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