Sentence Correction
试题详情
题目：
The widely accepted big bang theory holds that the universe began in an explosive instant ten to twenty billion years ago and has been expanding ever since.
选项:
A、that the universe began in an explosive instant ten to twenty billion years ago and has been expanding
B、that the universe had begun in an explosive instant ten to twenty billion years ago and had been expanding
C、that the beginning of the universe was an explosive instant ten to twenty billion years ago that has expanded
D、the beginning of the universe to have been an explosive instant ten to twenty billion years ago that is expanding
E、the universe to have begun in an explosive instant ten to twenty billion years ago and has been expanding
答案:
A
提问：
我纠结了A、C选项
A选项的Began和 has been expanding 我觉得时态没有很平行，麻烦老师讲解一下has been doing 这种形式。C选项我也觉得时态不平行。我理解的意思是：地球的起源是来自于10-20billion之前的爆炸，而且这个爆炸从来都没有这么扩大。那么并列的对象就是：爆炸的时间和爆炸的范围，就是主语比较。所以我想请问一下老师，就是做比较的时候怎么判断比较对象。主要是靠意义吗？谢谢～～
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提问：
DE 错在哪里呢？为什么用to have ？选项都 说宇宙起源是爆炸，后加instant ten to twenty billion years ago 要怎么翻译，才对？我无法理解这里的句意。我选C ，因为它说了宇宙起源是什么然后说宇宙 已经has 膨胀expanded ,感觉读起来最通顺的一个选项。我错在哪里，为什么A 对？
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