Re: [請益] TPO19-Discovering the ice ages

看板TOEFL_iBT (TOEFL_iBT托福)作者snark (影燕)時間14年前 (2012/03/24 07:57)推噓0(0推 0噓 1→)

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※ 引述《pandora8 (pandora*)》之銘言： : 想請問最後一題(28)的C選項: : Isotopic analysis of marine sediments showed that periods of glaciation and : deglaciation were more frequent, shorter, and more cyclic than previously : thought. : 這個選項為什麼不能選? 文章的最後一句講的不就是這意思嗎? : 原先是只有陸地的化石可以提供資訊, : 後來有了isotopic analysis 就可以從海洋化石得到資訊. : 因此有了與先前不同的結果. : 感覺這個選項也不是細節, 也是挺重要的一個結果. : 請大家幫忙一下. : 不好意思破解版TPO的選項無法複製, 麻煩大家自己看內文了~ 這個選項是正確的通常包含一個段落以上的內容就極有可能是答案 Discovering the Ice Ages 是一篇結構很簡單的文章有六段第一段最早發現的ice age 證據 Louis Agassiz was the first to note signs of glacial erosion and sedimentation in diverse regions of Europe and North America. 下面還要選3句話卻有五段可見一個選項不一定只代表一段第二段 Evidence of a pattern of glacier-like deposits eventually convinced most geologists that an enormous continental glacier had extended into the temperate zone 第三段說 became clear that there were multiple glacial ages during 所以選 Nineteenth-century geologists studying the layers of drift concluded that during the Pleistocene epoch several glaciations had occurred with war periods between them 剩下的兩段都有 shell. oxygen-16 ,Isotopic 所以要合併成一項 Isotopic analysis of marine sediments showed that periods of glaciation and deglaciation were more frequent, shorter, and more cyclic than previously thought -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 61.228.39.77