麻烦想请教下大家，OG13的65题C和D选项
Digging in sediments in northern China, evidence has been gathered by scientists suggesting that complex life-formsemerged much earlier than they had previously thought.
(C) scientists have gathered evidence suggesting that complex life-forms emerged much earlier than
(D) scientists have gathered evidence that suggests a much earlier emergence of complex life-forms than that which was
1. scientists have gathered evidence suggesting that complex life-forms emerged much earlier than (life-forms that has been) previously thought. 比较的是主语，但是没有宾语，所以可以去掉名词和助动词。省略在于不影响歧义尽量简约，你在SC专区里找找有人发的RON关于省略的讲解看看吧。
好久不搞GMAT生疏的不行。
正常的英文语境，如果用evidence that...是描述这个evidence suggests bla bla bla。如果用suggesting，则是描述scientists have gathered evidence这个动作，首先这不符合文章要表达的意思。并且如果非要这么用，evidence和suggesting中间一般要有逗号
1. C 中省略了动词。 life-forms emerged much earlier than (they were) previously thought ( to have emerged).
3 that 是指代emergence, 但是这里不符合逻辑， 因为 a much earlier emergence.... than (the emergence) which was previously thought, 读起来是好像有2个emergence,以前被认为的emergence 和现在被证明的。 我也刚接触SC，也不确定这样理解对不对。
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发表于 2015-1-4 23:14:44
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