大全987-33

[Pufa]

33. A substance derived from the Madagascar periwinkle, which has proved useful in decreasing mortality among young leukemia patients, is cultivated in China as part of a program to integrate traditional herbal medicine into a contemporary system of health care.

(A) A substance derived from the Madagascar periwinkle, which has proved useful in decreasing mortality among young leukemia patients,
(B) A derivative, which has proved useful in decreasing mortality among young leukemia patients, of the Madagascar periwinkle,
(C) A Madagascar periwinkle derivative, which has proved useful in decreasing mortality among young leukemia patients,
(D) The Madagascar periwinkle has a derivative which has proved useful in decreasing mortality among young leukemia patients, that
(E) The Madagascar periwinkle, a derivative of which has proved useful in decreasing mortality among young leukemia patients,

答案是E，但是我實在是沒有辦法苟同。
以下是大全的註解：
C) A Madagascar periwinkle derivative is cultivated意思不合理。
E) is best. The Madagascar periwinkle和 a derivative 比前者更可能被種植，因為M大寫表明這是個專有名詞，從文中看極有可能是一種植物，而a derivative 衍生物是不能被種植的，只能從植物中提煉，所以The Madagascar periwinkle is cultivated in China ，一樣東西被種植，正確。

我認為C才是比較正確的答案，
A：Madagascar periwinkle derivative=某個品種的衍生種。符合原句意，也沒有文法錯誤。
E：嚴重改變了句意。而且The Madagascar periwinkle, a derivative ..的同位語句型不也是承認了Madagascar periwinkle是a derivative （衍生種）？這更支持了C是對的。

請各位同學幫忙看看，
如果是我自己異想天開的話請笑小聲一點

[micht]

C 的卻不合裡 因為derivative 不是cultivated 出來的

derivative是從Madagascar periwinkle(某植物提煉出來的) 不是種植出來的

所以 C不合邏輯~~


再看後面句子 " is cultivated in China as part of a program to integrate traditional herbal medicine into a contemporary system of health care."

是講"Madagascar periwinkle" 不是derivative

只有E makes sense........

[cocaine]

E 正確壓..
derivative 本來就是從植物中提煉出來的..無法用種植或裁培出來..

某種植物 is cultivated in China 是重要關鍵地方

[Pufa]

這題我還要再想想....
我還是覺得C比較好，
不曉得有沒有大大feel me....

我再想想

[best555tw]

cultivate: if you cultivate land or crops, you prepare land and grow crops on it.

derivative 不能被cultivate

而且which 才是代表The Madagascar periwinkle
a derivative of which 不是同位語
同位語就不加of了
如果要加of， which 後面要用主詞
這裡用has
所以不是同位語

[小晃兄]

C 的卻不合裡 因為derivative 不是cultivated 出來的

derivative是從Madagascar periwinkle(某植物提煉出來的) 不是種植出來的

所以 C不合邏輯~~


再看後面句子 " is cultivated in China as part of a program to integrate traditional herbal medicine into a contemporary system of health care."

是講"Madagascar periwinkle" 不是derivative

只有E makes sense........

恍然大悟 ，原來還有這種考法喔，感謝。

[td91]

而且which 才是代表The Madagascar periwinkle
a derivative of which 不是同位語
同位語就不加of了
如果要加of， which 後面要用主詞
這裡用has
所以不是同位語[/quote]


請問一下a derivative of which 這一段是算插入句嗎，既然不是同位語也不是從屬子句，難道不需要用一個連接詞連結兩獨立句子媽??

[littlepeony]

而且which 才是代表The Madagascar periwinkle
a derivative of which 不是同位語
同位語就不加of了
如果要加of， which 後面要用主詞
這裡用has
所以不是同位語

請問一下a derivative of which 這一段是算插入句嗎，既然不是同位語也不是從屬子句，難道不需要用一個連接詞連結兩獨立句子媽??[/quote]


記得莫伯伯有講過 我忘記是不是在OG裡....
把兩個獨立句子串聯成一句
Ex.
1. Those scientists live in New York.
2. Many of those scientists are writers.
--> Those scientists, many of whom are writers, live in New York.
這題應該是類似這樣的句型.....我覺得啦 (有錯請指正)
不過例子太爛 真是不好意思
希望有解答到你的疑惑

[dibert8]

a derivative of which 好像真的不是同位語,我本來也以為是說,可以寫成以下這樣比較容易理解嗎?
The Madagascar periwinkle, of which a derivative has proved useful ..., is cultivated in China ... .
= The Madagascar periwinkle, where a derivative has proved useful ..., is cultivated in China ... .

原來 derivative 是不能種的,我現在才知. (A) 這樣寫,我就跟著這樣選,也選到(C). (E) 的意思拐很大一彎哩! (C) 還有哪裡不合理嗎? 不然這樣好像在考生物,我外行啦!

[dibert8]

GMAT 正確答案幾乎沒有 'N of which' 這樣的用法;正確的選項會用 'whose N'.
覺得選 (E) 不是很有把握.

[阿琪]

恩~

"'N of which"的用法應該是可以的~
只是它常會因為指代問題而形成非正確的選項，但如果能夠正確指出前面的主詞(The Madagascar periwinkle)是什麼的時候…"'N of which"是沒問題的！
例如：GWD 30-20; 大全426 ；還有本題！

但如果要快速解題，當然可以忽略有of which的選項(因為指代易指錯)，但並非就是絕對錯誤的選項！

附帶一提：
…"N of whom"也是正確的用法，只要能夠明確的指出前面要指代哪個詞(該詞為人)即可囉！

本題小解一下…~
只有The Madagascar periwinkle(某種植物)才可以被,_______, is cultivated............
其它主詞都不符合！

以上 參考