Gray wolves have been absent from a large national park for decades. Park officials wish to reestablish the wolves without jeopardizing any existing species of wildlife there. Since the park contains adequate prey for the wolves and since the wolves avoid close contact with people, reintroducing them would serve the officials' purpose without seriously jeopardizing visitors' safety.
Each of the following, if true, strengthens the argument above EXCEPT:
(A) The park is so large that wolves will not need to venture into areas frequented by people.
(B) Rabies is very rare in wolves, and there have been no verified cases of serious human injuries from nonrabid wild wolves since records have been kept.
(C) Ranchers in the region near the park have expressed concern that gray wolves, if reintro-duced, would sometimes prey on their livestock.
(D) Predation by gray wolves on elk in the park is likely to improve the health and viability of the park's elk population as a whole by reducing malnutrition among the elk.
(E) Wolves do not prey on animals of any endangered species that currently inhabit the park.
這看到EXCEPT所以表示其他四個選項都是strengthens，可以藉此題去分析『強化』的選項特徵，而答案選項是要找非強化的，所以答案不一定是要找weaken，可能也可以是irrelevant twaddle，不具備連貫性(coherence)
logic gook style:
premise 1 : Gray wolves have been absent from a large national park for decades.
premise2 : Since the park contains adequate prey for the wolves
premise3: since the wolves avoid close contact with people, reintroducing them would serve the officials' purpose without seriously jeopardizing visitors' safety.
conclusion : Park officials wish to reestablish the wolves without jeopardizing any existing species of wildlife there
中文版本：
前提一：這算是背景現象交代，陳述一個事實，所以算是再說明為何會有這個argument出現，所以可以不太需要理會，喵過即可，狼短缺
前提二：since讓他成會前提，公園有食物
前提三：公園遠離人群
結論：在不傷人情況下重建狼窩
在配合強化的定義strengthens：就是讓 the argument要valid還要sound，所以你要確保前提所講的東西都是真的並且結論也是真的，因為valid arguments只有一個定義就是當前提是真的結論不可能是假的，意思就是說前提是假的也有機會是valid arguments ，但是如果讓前提變假的不就沒有加強的用意了，所以要保證前提為『真』，再來絕不能有『反例』去推翻結論，這裡的結論是不傷人情況下重建狼窩，反例：不傷人情況下『不能』重建狼窩，另外要注意有無連貫性。連貫性就是說你要加強的東西一定會在前提或是結論中找到有提過的內容，難度比較高得會考同意替換，不過一般還是會多少有點重複字樣方便找線索
看選項：
(A) The park is so large that wolves will not need to venture into areas frequented by people. 這個幫前提三加強他的真實正確性，完美加強
(B) Rabies is very rare in wolves, and there have been no verified cases of serious human injuries from nonrabid wild wolves since records have been kept. 狂犬病少，然後又沒有人類傷亡，這是強化前提三的後段
(C) Ranchers in the region near the park have expressed concern that gray wolves, if reintroduced, would sometimes prey on their livestock. 這個感覺有點擦棒球，Ranchers酪農業者確實是人，然後near靠近，最後在prey他們的牲畜，沒直接對人，但可以說對人有損失，這個不確定我先放著，這很有可能跟前提三唱反調。
(D) Predation by gray wolves on elk in the park is likely to improve the health and viability of the park's elk population as a whole by reducing malnutrition among the elk.吃掉送聖誕禮物的交通工具，這是可以的，證明郎有東西吃，強化前提二。
(E) Wolves do not prey on animals of any endangered species that currently inhabit the park. 這個有加強了前提二，因為它就證明他要吃的東西不會斷貨，有持續的通路。
所以綜觀以上，就決定是（Ｃ）
以上個人筆記希望有幫助到大家，有誤再請指教!!
托福TOEFL ibt (4)