在GRE阅读考试中，转折关系词是把握文章大意的一个重要手段，那么，GRE阅读如何正确使用文章转折词？下面新航道小编和大家分享GRE阅读题的答题技巧。

在GRE阅读文章中常用的转折词有7个：but, however, yet, though, nevertheless, nonetheless, still。其中前四个为强转折词，后三个为让步式转折。读到这里，有的同学可能会疑惑：though不是让步连接词吗？没错，though一般情况下做连词，连接让步状语从句(句内转折)。但是如果是在两个逗号之间的though，则是副词，相当于however。

例如：About the same time, though, scientists realized comets might contain decaying radioactive isotopes that could have warmed cometary interiors to temperatures that caused the interiors to evolve.

此句表明科学家们完全不同意前一句的看法。让步式转折只要出现，必然是考点，同时也是容易丢分的点。

下面通过一篇GRE阅读文章，具体讲一下转折关系的重要性：

Astronomers who study planet formation once believed that comets—because they remain mostly in the distant Oort cloud, where temperatures are close to absolute zero—must be pristine relics of the material that formed the outer planets. The conceptual shift away from seeing comets as pristine relics began in the 1970s, when laboratory simulations revealed there was sufficient ultraviolet radiation reaching comets to darken their surfaces and there were sufficient cosmic rays to alter chemical bonds or even molecular structure near the surface. Nevertheless, astronomers still believed that when a comet approached the Sun—where they could study it—the Sun’s intense heat would remove the corrupted surface layer, exposing the interior. About the same time, though, scientists realized comets might contain decaying radioactive isotopes that could have warmed cometary interiors to temperatures that caused the interiors to evolve.

For the following question, consider each of the choices separately and select all that apply.

1. It can be inferred that the author would agree with which of the following statements about the “laboratory simulations”?

A. The simulations showed that despite the low temperatures in the Oort cloud, there was sufficient energy there to alter comet

B. Astronomers were initially reluctant to accept what simulation showed about the composition of comets

C. The simulations themselves did not eliminate the possibility that comets contain pristine relics of material from the early solar system.

这是一道不定项选择题。答案是AC，很多同学都选上了B选项，他们觉得 laboratory simulations这句话后马上出现了Nevertheless, astronomers still believed……..， 因为nevertheless一词, 所以有的同学会觉得astronomers不会接受前一句的laboratory simulations的结果的。

但是要知道，nevertheless和 nonetheless一样表示的都是让步式转折，也就是说天文学家接受前一句的实验结果，但是他们持不同的观点。所谓让步式转折就是接受前面的事实陈述部分，但是不接受观点。

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