【新東方考研數(shù)學長線基礎班】
既然出題側重考查文章結構，所以一定要熟悉行文模式。下面就Pant B涉及的七選五題型的文章特點展開說明。這部分的學術文章常見行文模式有以下幾種：層層遞進型，即文章的幾個段落是從抽象到具體、從簡單到復雜的過程，各段之間為遞進關系，有時這種文章的中心思想出現(xiàn)在層層遞進的最后一段。拋磚引玉型，即文章第一段通過噱頭或例子或反面觀點，引出文章的討論內(nèi)容，而真正的中心出現(xiàn)在第一段之后。問題回答型，即文章的第一段提出一個問題，隨后各段中提供該問題的答案。文章的中心思想就是該問題的直接答案。例如層層遞進型文章的開頭，我們可以參照下面的大綱例題進行分析。
Long before Man lived on the Earth, there were fishes, reptiles, birds, insects, and some mammals. Although some of these animals were ancestors of kinds living today, others are now extinct, that is, they have no descendants alive now. 41)__________________.
Very occasionally the rocks show impression of skin, so that, apart from color, we can build up a reasonably accurate picture of an animal that died millions of years ago. The kind of rock in which the remains are found tells us much about the nature of the original land, often of the plants that grew on it, and even of its climate.
42)__________________. Nearly all of the fossils that we know were preserved in rocks formed by w
