菜鸟求助一道OG13 SC

太古

Paleontologists believe that fragments of a primate jawbone unearthed in Burma and estimated at 40 to44 million years old provide evidence of a crucial step along the evolutionary path that led to human beings.

(A) at 40 to 44 million years old provide evidence of
(B) as being 40 to 44 million years old provides evidence of
(C) that it is 40 to 44 million years old provides evidence of what was
(D) to be 40 to 44 million years old provide evidence of
(E) as 40 to 44 million years old provides evidence of what was

我就是纠结句子的结构 按理说应该是paleontologists believe that…and estimated…provide…
但是这个provide是做什么成分的

求大牛点醒

太古

小蘑菇开始打怪 发表于 2014-3-4 16:49
我觉得应该是unearthed和estimated并列，修饰fragments，然后believe that后面都是从句。
从句中的主语是fr ...

多谢 脑抽绕住了 唉 还是不够熟练啊

小蘑菇开始打怪

我觉得应该是unearthed和estimated并列，修饰fragments，然后believe that后面都是从句。
从句中的主语是fragments，从of到44 million years old全都是修饰语可以不看，谓语就是provide

holy0401

that引导的从句provide 是 fragments的谓语， 我看你标出来主语啦，主谓一致原则就排除了BCE了，再考的就是estimate to be 这个固定搭配了，据说古英文里有estimate at 但现在不用了。