GWD-6-Q18

boreposuo · 发表于 2013-10-21 16:19:30

Unearthed in China, fossils of feathered dinosaurs offer the most dramatic evidence yet discovered of the close evolutionary relationship between dinosaurs and birds.

A. offer the most dramatic evidence yet discovered of the close evolutionary relationship between dinosaurs and birds
B. offer evidence more dramatic than what has yet been discovered of the close evolutionary relationship between dinosaurs and birds
C. offer more dramatic evidence of the close evolutionary relationship than any yet discovered between dinosaurs and birds
D. have offered the most dramatic evidence of the close evolutionary relationship between dinosaurs and birds
E. have offered more dramatic evidence than any that has yet been discovered of the close evolutionary relationship between dinosaurs and birds

大熊兄,此题各选项应该如何分析？尤其是yet 的用法，难以理解。求教！谢谢

boreposuo · 发表于 2013-10-21 16:27:54

boreposuo 发表于 2013-10-21 16:19
Unearthed in China, fossils of feathered dinosaurs offer the most dramatic evidence yet discovered o ...

能否这样理解：fossils of...提供了最生动的证据关于尚未发现(yet discovered)的恐龙与鸟类之间密切的进化关系？

D的have offered 为什么不可以使用？

[SC资料] GWD-6-Q18

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