TTGWD4-Q39,到底考什么呢？C为何不对？

lala974

Some general statements. There are times in a sentence when you could choose to use either present or present perfect. goel is right that D indicates that the dinosaurs and birds are somehow being modified by the "that have yet been discovered," which does unacceptably muddle the meaning. Or, logitech, if you want to say that the "have yet been discovered" modifies relationship, that also is the wrong thing. So, either way, the words no longer indicate the right meaning: that we're talking about the most dramatic evidence that has been discovered.


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sonic623

yet在這裡指的是「迄今為止」，等同於until now/then以及so far，必須與最高級連用，「後位」修飾比較級。Longman字典是這樣解釋的：

the biggest/worst etc (something) yet
used to say that something is the biggest, worst etc of its kind that has existed up to now: This could turn out to be our biggest mistake yet.
Nordstrom’s latest novel looks like his best yet.



補充yet的另一個用法，當yet與比較級連用時，yet=even=still，「前位」修飾比較級表示「更為」、「還」
Longman字典是這樣解釋的：


yet more/bigger/higher etc
used to emphasize that something is even more than it was before or is in addition to what existed before SYN still:
He got a call from the factory, telling of yet more problems.
Inflation had risen to a yet higher level.
yet another reason to be cautious
The meeting has been cancelled yet again (=one more time after many others).



回到題目中，A選項的yet不是表示already，因此與現在完成式無關，BDE的時態改成現在完成實屬畫蛇添足，此句型沒有明顯的時間副詞提示要用現在完成。何況yet是與否定、疑問中才會表示already。

jay871750293

这道题在曼哈顿论坛上有另一个版本：
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 that have yet been discovered
E. have offered more dramatic evidence than any that has yet been discovered of the
close evolutionary relationship between dinosaurs and birds

其实差别就在D上，此版本多了一个定语从句“that have yet been discovered ”
我觉得GMAT语法题里面一般不会有选项因为漏掉信息而错误的，所以我猜测可能TN上的版本里D可能漏掉了后面那部分，
而这个版本应该才是正确的版本，如果是这样的话，那D选项就没什么争议了，定语从句修饰对象错误...

ajcaesar

不知道翻成中文有没有帮助到你

A）有羽毛的恐龙化石出土提供了戏剧性的证据，然而仍未发现恐龙与鸟类相似的演化关系

C）有羽毛的恐龙化石出土提供了较多"相似演化关系的戏剧性证据"比任何未发现的"恐龙和鸟类"还多

除了可以用比较级的概念，另外一个我觉得是比要的东西不一样，C选项完全比错

希望有帮到你

其他文法问题不赘述，这里只以比较和语意作判断

duankou

这个解释好，不纠结了

windbear

我本来也选的D，可是现在觉得不对。yet discovered不能去掉。因为没有人知道目前发现的evidence是不是真正most dramatic，可能以后还会有更加dramatic的evidence这个谁都说不好，A选项能够表达这个意思，D选项没有这个意思，把在中国发现的这个fossil确认为最dramatic的evidence。所以，意思还是有差别的，不能说A意思重复

supershuang

赞成如下：
yet
(與最高級連用)表示到目前(或當時)為止(最...)