2016年5月6日的托福考试马上就要开始了,同学们是否已经准备充分了呢?今天智课网给大家整理的内容是2017年5月6日托福阅读机经小范围预测,包括对托福阅读考情的分析,考题趋势预测以及一些题目。

  点击获得2017年全年托福考试机经预测汇总

  托福阅读最新考情分析:

  根据智课网考试对每场托福考试的跟踪研究,从2017年3月4日以来,托福阅读呈现出了改革新趋势。3月之后,托福阅读以多卷形式出现,每位考生遇到的题目都不完全一致,一场考试中所出现的阅读总篇数甚至多达20篇。为帮助考生们应对托福阅读趋势,智课网退出了托福神预测版机经资料,帮助考生们有针对性的备考。

  托福阅读规律总结:

  近两年来,托福阅读文章的题材类型、题目数量、题型比例与往年相比均无太大变化。最大变化体现在新体数量增加。与2015年之前大量旧题拼盘的情况不同,2016年之后托福阅读出现大量新题。三篇阅读重复整套旧题的情况几乎没有了,多义新题和新旧题拼盘为主。从旧题重复规律来看,托福阅读以重复近两年内的考题为主。最热门题材依然是生物类,占总数的三分之一。地质、考古、社会、历史、经济等题材也是考察的重点,同学们平时要重点备考这样的题材,多积累相关素材。

  本文是2017年5月6日托福阅读机经小范围预测。下面的内容是托福阅读题目预测内容:

  类别:地质类

  Title:Early Theories of Continental Drift

  The idea that the past geography of Earth was different from today is not new. The earliest maps showing the east coast of South America and the west coast of Africa probably provided people with the first evidence that continents may have once been joined together, then broken apart and moved to their present positions.

  During the late nineteenth century, Austrian geologist Eduard Suess noted the similarities between the Late Paleozoic plant fossils of India, Australia, South Africa, and South America. The plant fossils

  comprise a unique group of plants that occurs in coal layers just above the glacial deposits on these southern continents. In this book The Face of the Earth (1885), he proposed the name “Gondwanaland” (called Gondwana here) for a supercontinent composed of the aforementioned southern landmasses. Suess thought these southern continents were connected by land bridges over which plants and animals migrated. Thus, in his view, the similarities of fossils on these continents were due to the appearance and disappearance of the connecting land bridges.

  The American geologist Frank Taylor published a pamphlet in 1910 presenting his own theory of continental drift. He explained the formation of mountain ranges as a result of the lateral movements of continents. He also envisioned the present-day continents as parts of larger polar continents that eventually broke apart and migrated toward equator after Earth’s rotation was supposedly slowed by gigantic tidal forces. According to Taylor, these tidal forces were generated when Earth’s gravity captured the Moon about 100 million years ago. Although we know that Taylor ‘s explanation of continental drift is incorrect, one of his most significant contributions was his suggestion that the Mid-Atlantic Ridge—an underwater mountain chain discovered by the 1872-1876 British HMS Challenger expeditions—might mark the site at which an ancient continent broke apart, forming the present –day Atlantic Ocean.

  However, it is Alfred Wegener, a German meteorologist, who is generally credited with developing the hypothesis of continental drift. In his monumental book, The Origin of Continents and Oceans (1915), Wegener proposed that all landmasses were originally united into a single supercontinent that he named “Pangaea.” Wegner portrayed his grand concept of continental movement in a series of maps showing the breakup of Pangaea and the movement of various continents to their present-day locations. What evidence did Wegener use to support his hypothesis of continental drift? First, Wegener noted that the shorelines of continents fit together, forming a large supercontinent and that marine, nonmarine, and glacial rock sequences of Pennsylvanian to Jurassic ages are almost identical for all Gondwana continents, strongly indicating that they were joined together at one time. Furthermore, mountain ranges and glacial deposits seem to match up in such a way that suggests continents could have once been a single landmass. And last, many of the same extinct plant and animal groups are found today on widely separated continents, indicating that the continents must have been in proximity at one time. Wegener argued that this vast amount of evidence from a variety of sources surely indicated the continents must have been close together at one time in the past.

  Alexander Du Toit, a South African geologist was one of Wegener’s ardent supporters. He noted that fossils of the Permian freshwater reptile “Mesosaurus” occur in rocks of the same age in both Brazil and South Africa. Because the physiology of freshwater and marine animals is completely different, it is hard to imagine how a freshwater reptile could have swum across the Atlantic Ocean and then found a freshwater environment nearly identical to its former habitat. Furthermore, if Mesosaurus could have swum across the ocean, its fossil remains should occur in other localities besides

  Brazil and South Africa. It is more logical to assume that Mesosaurus lived in lakes in what are now adjacent areas of South America and Africa but were then united in a single continent.

  Despite what seemed to be overwhelming evidence presented Wegener and later Du Toit and others, most geologists at the time refused to entertain the idea that the continents might have moved in the past

  Paragraph 2

  During the late nineteenth century, Austrian geologist Eduard Suess noted the similarities between the Late Paleozoic plant fossils of India, Australia, South Africa, and South America. The plant fossils comprise a unique group of plants that occurs in coal layers just above the glacial deposits on these southern continents. In this book The Face of the Earth (1885), he proposed the name “Gondwanaland” (called Gondwana here) for a supercontinent composed of the aforementioned southern landmasses. Suess thought these southern continents were connected by land bridges over which plants and animals migrated. Thus, in his view, the similarities of fossils on these continents were due to the appearance and disappearance of the connecting land bridges.

  1.According to paragraph 2, Eduard Suess believed that similarities of plant and animal fossils on the southern continents were due to

  A.living in the southern climate

  B.crossing the land bridges

  C.fossilization in the coal layers

  movements of the supercontinent

  以上的内容是2017年5月6日托福阅读机经小范围预测,同学们将考前机经认真分析一下吧,对大家正式考试可能会有帮助的。

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