老托福阅读试题【98-05】.docx

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老托福阅读试题【98-05】

智课网TOEFL备考资料老托福阅读试题【98-05】 摘要: 老托福阅读一直以来受到广大学生的喜爱,不少学生在备考阶段总是通过各种途径搜查这些资料,为了便于大家下载,小编特别将小马老师整理的老托福阅读全套试题,分享给大家,希望对大家的托福阅读考试会有一定的帮助,最后祝愿大家在即将到来的托福考试中能够取得优异的成绩。 老 托福 阅读全套试题: 1995.08 The ocean bottom – a region nearly 2.5 times greater than the total land area of the Earth – is a vast frontier that even today is largely unexplored and uncharted. Until about a century ago, the deep – ocean floor was completely inaccessible, hidden beneath waters averaging over 3,6000 meters deep. Totally without light and subjected to intense pressures hundreds of times greater than at the Earths surface, the deep – ocean bottom is a hostile environment to humans, in some ways as forbidding and remote as the void of outer space. Although researchers have taken samples of deep – ocean rocks and sediments for over a century, the first detailed global investigation of the ocean bottom did not actually start until 1968, with the beginning of the National Science Foundations Deep Sea Drilling Project (DSDP). Using techniques first developed for the offshore oil and gas industry, the DSDPs drill ship, the Glomar Challenger, was able to maintain a steady position on the oceans surface and drill in very deep waters, extracting samples of sediments and rock from the ocean floor. The Glomar Challenger completed 96 voyages in a 15 – year research program that ended in November 1983. During this time, the vessel logged 600,000 kilometers and took almost 20,000 core samples of seabed sediments and rocks at 624 drilling sites around the world. The Glomar Challengers core samples have allowed geologists to reconstruct what the planet looked like hundreds of millions of years ago and to calculate what it will probably look like millions of years in the future. Today, largely on the strength of evidence gathered during the Glomar Challengers voyages, nearly all earth scientists agree on the theories of plate tectonics and continental drift that explain many of the geological processes that shape th

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