Question

英语求助：一个句子的句子结构分析

帮忙分析此句子结构Whether it stems from the common ancestor that the species had 35 million years age is an unanswered question.

Answer 1

完整的句子应该是：However, whether such a sense of fairness evolved independently in capuchins and humans, or whether it stems from the common ancestor that the species had 35 million years ago, is, as yet, an unanswered question.
if（…or ）, whether（…or not）引导的名词从句是由一般疑问句或选择疑问句转化而来的，其功能和wh�从句的功能相同。翻译时，译为"是否"，采用顺译法
该句子为主系表结构。whether引导由or并列的两个主语从句whether such a sense of fairness evolved independently in capuchins and humans和whether it stems from the common ancestor that the species had 35 million years ago,译为"是……，还是……"

Answer 2

whether。。is an unanswered question这是主干句
it...ancestor是whether质疑的部分，是an unanswered question
that..age修饰前面的ancestor

一般长句和复杂句的翻译都是先要抽主干的。然后层层拨开。也不算太难的。主要找准各个衔接点。