2015年11月23日 星期一

Dustin解題:CR-prep12-071

原文發表於PTT GMAT版

※ 引述《heystranger (卍曠世巨魯霸氣登台卍)》之銘言:

Electric utilities pay less for low-quality coal per ton delivered than for high-quality coal. Yet more low-quality coalthan high-quality coal must be burned to generate the same amount of electricity. Moreover, per ton of coal burned,low-quality coal generates more ash than does high-quality coal, and the disposal of ash is becoming more and more expensive.  The considerations above, if true, most strongly support which of the following claims?


不要以為看到support就是加強題~~~

 (A) A coal-burning utility might not be assured of benefiting economically by always adhering to the policy of keeping its overall coal purchasing costs as low as possible.

(B) In those regions where the cost of disposing of coal ash is negligible, it is more expensive for coal-burning utilities to use high-quality coal than low-quality coal.

(C) Transportation costs represent a smaller proportion of the cost per delivered ton for low-quality coal than for high-quality coal.

(D) It is no less expensive to dispose of a ton of coal ash that results from the burning of high-quality coal than it is to dispose of a ton of coal ash that results from the burning of low-quality coal.

(E) In regions where coal-ash disposal is the least expensive, reserves of low-quality coal are likely to decline at a faster rate than are reserves of high-quality coal.

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小弟資質愚鈍不解答案為何是A,這題做了快10分鐘...超難選擇答案最後選了E
再回過頭看A,我的理解A:購買低成本無法保證帶來經濟利益(不知道這大意對不對)
可是原文我找不到一個conclusion明確表明low quality就是不實用
只有隱性的自己心裡認為這個low quality不實用,
與其說support,我怎麼覺得這題更像assumption? 請大大指教!


這題不是support也不是assumption,而是推論題。
support跟assumption(以及weaken/evaulation)我們可以視作同一個家族的題型
特色就是:文章中會有一個明顯的conclusion
而選項則是新的外來資訊,要去朝conclusion做sup/wkn/assumption/eval
讓我們看看常見題幹的寫法,就知道了:

(加強)
“Which of the following, if true, most strengthens the argument?”
“Which of the following, if true, most strongly supports the statement above?”
“Which of the following, if true, does most to justify the conclusion above?”
有沒有發現都是下面(following)選項,去朝上面(above)的論點做加強?

回到今天這個題目,來看看題幹:

The considerations above, if true, most strongly support which of the following claims?

其實是上面(above)的資訊,要朝下面(following)加強,
也就是問你上面的資訊可以推出下面哪個一個資訊。

讓我們來看看其他的推論題題幹寫法:

“If the statements above are true, which of the following must be true?”
“Which of the following conclusions is best supported by the statements above?”
“The statements above, if true, best support which of the following assertions?”
“Which of the following can be correctly inferred from the statements above?”
“Which of the following is most strongly supported by the information above?”

是不是都是上面(above)朝向下面(following)?所以這其實是推論題。
推論題正好就是問你讀完上面所有資訊之後,心中所得到的綜合判斷。

所以這題你心中的隱姓判斷沒有錯,只是判斷題幹時錯了,
才會避開A不選。