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GMAT邏輯推理易錯(cuò)題剖析

發(fā)布時(shí)間:2007-8-31 文字大。  打。打印此文

GMAT考試中邏輯推理題所占比重較大,考查范圍也早已超過英語(yǔ)語(yǔ)言本身,在平時(shí)與考生接觸中,普遍的反映就是這部分題型比較難,在進(jìn)行選擇時(shí)往往顧此失彼,理不清頭緒。我們給考生的建議是先去適應(yīng)出題者思路,也就是我們不需要先拿著大量的題目去做,而要先看翻譯好的題。其實(shí)對(duì)于邏輯推理題來說,總結(jié)出來的方法和步驟都是人為限定的,而我們的最終目的就是以自己的方法去快速地選對(duì)答案。
邏輯推理題本身并不難,但是在有限的時(shí)間內(nèi)平靜心情去解題并不是誰(shuí)都能做到的。一般情況下,出題者會(huì)把正確答案局限在兩個(gè)選項(xiàng)中,而其他的一般在讀懂題目后比較容易排除,怎么樣選出credited response就是我們要經(jīng)過反復(fù)的比較和總結(jié),對(duì)于那些ridiculously easy的題目,我們大可不必再看,而對(duì)于容易出錯(cuò)受迷惑的來說,就值得仔細(xì)斟酌一番了。

以下這個(gè)例題選自GMAT考生易錯(cuò)題之一,具有很高的借鑒價(jià)值,千萬(wàn)別錯(cuò)過哦~

A recent survey of all auto accident victims inDoleCountyfound that, of the severely injured drivers and front-seat passengers, 80 percent were not wearing seat belts at the time of their accidents. This indicates that, by wearing seat belts, drivers and front-seat passengers can greatly reduce their risk of being severely injured if they are in an auto accident.
The conclusion above is not properly drawn unless which of the following is true?
(A) Of all the drivers and front-seat passengers in the survey, more than 20 percent were wearing seat belts at the time of their accidents.
(B)Considerably more than 20 percent of drivers and front-seat passengers inDoleCountyalways wear seat belts when traveling by car.
(C) More drivers and front-seat passengers in the survey than rear-seat passengers were very severely injured.
(D) More than half of the drivers and front-seat passengers in the survey were not wearing seat belts at the time of their accidents.
(E) Most of the auto accidents reported to police inDoleCountydo not involve any serious injury.

這道題容易出錯(cuò)的原因在于distractors迷惑性大,中斷思路,最后只能糊里糊涂地隨便選一個(gè)完事,但恰恰就中了出題者的招。下面我們通過詳細(xì)的解析來分析一下出題者的意圖和相應(yīng)對(duì)策。

大多數(shù)人沒受重傷并沒有說明是因?yàn)榇蠖鄶?shù)人戴著安全帶才傷得不重,E對(duì)觀點(diǎn)支持并沒起到作用。而D的半數(shù)概念并沒有任何依據(jù),注意這一類與題目無(wú)關(guān)的選項(xiàng)也是出題者比較喜歡設(shè)置的。A中說所有的被調(diào)查人中,多于20%的人都系了安全帶,而嚴(yán)重受傷的人中只有20%系了安全帶,這就說明系安全帶所受的危險(xiǎn)要小一些,對(duì)論斷進(jìn)行了支持。C說的前座與后坐相比重傷人員更多,對(duì)是否佩帶安全帶也無(wú)影響。B說的20%值得引起我們注意,可是他們?cè)谄綍r(shí)開車系安全帶與坐飛機(jī)受傷其實(shí)也夠不上什么關(guān)系,那么正確答案就是A了。

經(jīng)過這樣的分析以后,可能您覺得這道題并沒有想象的那么難解。其實(shí)正因?yàn)檫壿嬐评眍}不涉及語(yǔ)言本身,所以它更具有客觀性。解題的時(shí)候切忌模棱兩可、憑感覺。對(duì)于繞彎較多的,一定要繞到底才行。

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