2010年6月16日 星期三

CR_PP1-21 難題解析


文章日期:2010-06-16 20:17
21.        (28551-!-item-!-188;#058&003690)

Traces of cultivated emmer wheat have been found among the earliest agricultural remains of many archaeological sites in Europe and Asia.  The only place where the wild form of emmer wheat has been found growing is a relatively narrow strip of southwest Asia.  Since the oldest remains of cultivated emmer wheat yet found are from village sites in the same narrow strip, it is clear that emmer wheat was first domesticated somewhere in that strip.

Which of the following, if true, most strengthens the argument?

(A) The present-day distribution of another wild wheat, einkorn, which was also domesticated early in the development of agriculture, covers a much larger area of southwest Asia.
(B) Modern experiments show that wild emmer wheat can easily be domesticated so as to yield nearly as well as traditionally domestic strains.
(C) At the time when emmer wheat was first cultivated, it was the most nutritious of all the varieties of grain that were then cultivated.
(D) In the region containing the strip where wild emmer wheat has been found, climatic conditions have changed very little since before the development of agriculture.
(E) It is very difficult, without genetic testing, to differentiate the wild form of emmer wheat from a closely related wild wheat that also grows in southwest Asia.



判定類型
根據:目前為止發現最古老的cultivated emmer wheat遺跡和目前的wild form of emmer wheat都在narrow strip----推論: emmer wheat was first domesticated in that strip

這裡的推論隱含意思是說:在同一個區域仍發現wild form of emmer wheat, 這些wild form of emmer wheat可能是源自目前發現最古老的cultivated emmer wheat

D選項是說: 若以前包含narrow strip這個區域的climate condition改變, 目前在narrow strip看到的wild form of emmer wheat就可能不是目前發現最古老的cultivated emmer wheat, 因為在同一個region不含narrow strip的其他地方可能才是最早種植的, 只是後來氣候改變找不到證據了

這裡走的是資料充分性的答案.也可以看成否定weaken, 否定字眼是little

這題推論關係不容易看出, 就算事後檢討很多人也要花時間才能想通, 更何況是有時間壓力下的考試?
像這種題目也沒有必要要求一定要對, 稍微了解概念就好了, 這裡的概念就是要有"公平的立論基礎", 比較像是美加老師講的"比較基礎相同"這個概念, 如果答案內容敘述像是在讓討論背景"公平化", 這種就有可能是正確答案