The features of the floor of the Kasei Valles on Mars look just like those at the base of Antarctic ice streams, so it suggests that possibly it was flowing ice that carved the giant Martian channels previously attributed to cataclysmic floods.
所以我觉得prep语法笔记是不是搞混了同位语(appositive)和absolute phrase的关系。比如老prep sc2 中的一道题,以下是prep原文:122. (30985-!-item-!188;#058&005940) The features of the floor of the Kasei Valles on Mars look just like those at the base of Antarctic ice streams, so it suggests that possibly it was flowing ice that carved the giant Martian channels previously attributed to cataclysmic floods. (A) so it suggests that possibly it was flowing ice that (D) (B) a suggestion that flowing ice may have (C) to suggest flowing ice as possibly having (D) suggesting that flowing ice may have (E) which is suggestive of flowing ice having possibly
A. it没有指代对象 B. a suggestion不能概括前句话的含义 C. 不定式使用错误 D. 正确。 E. Which没有指代对象;形容词be suggestive不及动词有效。
句子结构: The features of … look just like those (指代features) at…, suggesting…. 前半句描述一个发现或者事实,后半句可以使用伴随状语、同位语等用法,说明该发现或事实的影响、意义。此句使用的为伴随状语,如果要使用同位语,则为,The features of … look just like those (指代features) at…, a finding/phenomenon/fact that suggests….逻辑表达(Logical Predication),
eg. The cat, a TABBY raised on a farm, took a nap.
这是manhattan上的例句,tabby引导同位语,修饰CAT(名词),而tabby后面的raised on a farm是tabby自己带的modifier。
而absolute phrase,修饰整个句子
eg. Scientists have found high levels of iridium in certain geological formations around the world, RESULTS that suggest the cataclysmic impact of a meteor millions of years ago.
有点不同看法大家讨论, 我觉得 suggestion 是不是不能算是 abstract word 去概括前面的句子啊,记得有一道题也是同样的错误,前面说一个协议 后面 , a deal that 同理deal 不是抽象名词所以不能概括前面的错误。 好像见过的抽象名词有:finding/phenomenon/fact/event/trend