A method is criticized, and an alternative is suggested
An illustration is examined, and some errors are exposed
An assertion is made, and a procedure is outlined
A series of examples is presented, and a conclusion is drawn
A hypothesis is advanced, and supporting evidence is supplied
本文的结构是结论解释型,因此为正确答案。
二. 结论-解释型
首先是结论-解释型文章。这类文章在开始有一个判断句,一般是文章的结论,也是文章的主题。这个判断句的谓语部分通常包含系动词或情态动词,而且含有表示态度的词汇。例如,
Because of its accuracy in outlining the Earths subsurface, the seismic-reflection method remains the most important tool in the search for petroleum reserves. In field practice, a subsurface is mapped by arranging a series of wave-train sources, such as small dynamite explosions, in a grid pattern
文章首句指出:由于地震反射法在勾划地球的地下层面这方面的准确性,该方法一直是探寻石油储备的最重要的工具。这是一个判断句,为结论。其中remains为系动词,而most important为态度词,表示作者对地震反射法持非常正面的评价。后文应解释地震反射法的具体过程。 第二句话对解释进行总的说明:在实地作业中,通过将一系列波列源,诸如小规模炸药爆炸,排列成一个网格模式,从而将地下层面标绘出来。接下来是地震反射法的详细过程。
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