The Origin of Coral Reefs Paragraph 1: Coral reefs are natural structures formed from deposits of the calcium carbonate secretions of coral, a marine animal that lives in colonies. In general, coral reefs are grouped into one of three categories, atolls, barrier reefs, and fringing reefs. Atoll...
托福阅读真题第182篇TheOriginofCoralReefs(答案文章最后) The Origin of Coral Reefs Paragraph 1:Coral reefs are natural structures formed from deposits of the calcium carbonate secretions of coral, a marine animal that lives in colonies. In general, coral reefs are grouped into one of three categor...
1. 本场考试据不完全统计阅读出现了大约六套左右的试卷,而大多数考题在TPO中都出现过类似的话题文章,如Water >话题不仅重复TPO25的The surface of Mars还重复了多期真题话题2019.3.13考的Water and Life >以及The Origin of Coral Reefs话题高度重复TPO48 Coral Reefs。可见对于考生来说,无论考试的新题如何更替,...
in the years after the development of Darwin’s theory other explanations were offered, and the whole concept of the origin of atolls became embroiled in the controversy over the origin of coral reefs. If Darwin’s theory was correct, it must be assumed that drilling down through the...
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Murray, of the Challenger Commission, to publish a letter which has been addressed to him by Dr. Guppy from the Pacific. The importance of this communication will be recognised in the confirmation it supplies of the inference that coral reefs start upon a platform of limestone composed of the...
“The Origin of Coral Reefs”和TPO47 阅读第三篇“Coral Reefs”高度相似,练过的同学做起来应该是相当顺利。 2.词汇题多为TPO词汇题和近两年机经词汇,只要准备充分,都可以轻松拿到相应的分数。 3 考试预测 后面考试的文章依旧会围绕生物和人文历史这两大超高频话题,地质地理和天文话题也会涉及到,手头的TPO题目...
Since the current surface features of atolls give no evidence of a volcanic base, in the years after the development of Darwin’s theory other explanations were offered, and the whole concept of the origin of atolls became embroiled in the controversy over the origin of coral reefs. If Darwin...
already been printed as part of a doctor'sthesis submitted by Earl B. Millard to the Graduate School of theUniversityof Illinois.Washburn, J. Amer. Chem. Soc., 31, 322 (1909).2 Buckb6ck, Zs. physik. Chem., 55, 563(1906)THE ORIGIN OF CORAL REEFSBy W. M. DavisDEPARTMENT OF ...