隨著GMAT改革的深入越來越多的學員感到迷茫和困惑到底GMAT路在何方，到底最新的機考題目難度如何.基于這樣一個前提，我把GMATpre和OG真題按著題型進行逐題分析，找到最佳的考試考點。

GMAT的重點題型之一平行并列：

平行并列：見到平行看結構，形式功能要對稱.就GMAT而言，平行并列是考試中的重點也是難點，英語(Q吧)稱其為parallel structure: this is a little bit like making sure that the two sides of a mathematical equation are balance.就解題而言要求做到四個點。

形式對稱

概念對等

功能相同

含義單一

一)形式對稱：

指平行并列連接詞前后的詞形式上完全對稱

下面以GMATpre test 1為例：

例1：The airline company, following through on recent warnings that it might start reducing service, announced that it was eliminating jet service to nine cities, closing some unneeded operations, and it grounded twenty-two planes.

(A) closing some unneeded operations, and it grounded

(B) closing some unneeded operations, and grounding

(C) was closing some unneeded operations, while it grounded

(D) it closed some unneeded operations and grounded

(E) it was closing some unneeded operations, and grounding

譯文：航空公司遵照最近的警告它可能會開始減少服務而宣布它將會減少噴氣機服務到九個城市,關閉不需要的操作和停飛22架飛機。

分析：平行并列結構,形式要對稱.所以本題答案是B eliminating, closing and grounding 本題重點考查平行并列結構.都是航空公司做的三個動作。

例2 The list of animals that exhibits a preference of either using the right or the left hand (i.e., claw, paw, or foot) has been expanded to include the lower vertebrates.

(A) exhibits a preference of either using the right or the left hand (i.e., claw, paw, or foot) has been expanded to include

(B) exhibits the preference to use either the right or the left hand (i.e., claw, paw, or foot) has been expanded and includes

(C) exhibit a preference in either using the right or the left hand (i.e., claw, paw, or foot) has been expanded to include

(D) exhibit a preference for using either the right or the left hand (i.e., claw, paw, or foot) has been expanded to include

(E) exhibit the preference as to either using the right or the left hand (i.e., claw, paw, or foot) has been expanded and includes

譯文：動物展示出用左手或右手等的列表已經(jīng)進一步的擴大到了更為低等的脊椎動物

分析：定語從句的主謂一致取決于所修飾對象.前面出現(xiàn)的是animals 所以應該是復數(shù).答案只能在CDE中產(chǎn)生.either or 要求形式是要對稱. 而C和E選項中出現(xiàn)了either using or the left表達錯。

由此可見GMAT在考查平行并列過程中要求前后嚴格對稱。

二)概念對等：

平行并列過程中,要求概念要對等,就名詞而言,特指對特指,抽象對抽象,具體對具體.它們從來不相互對應進行并列。

New theories propose that catastrophic impacts of asteroids and comets may have caused reversals in the Earth’s magnetic field, the onset of ice ages, splitting apart continents 80 million years ago, and great volcanic eruptions.

A splitting apart continents

B the splitting apart of continents

C split apart continents

D continents split apart’

E continents that were split apart

譯文：新的理論提出小行星和慧星災難性的影響可能引地磁場的顛倒，冰川時代的到來，8千萬年前大陸的分裂以及火山的噴發(fā)。

分析：本題平行并列部分是. Reversals , the onset, …. And eruption顯然是由動詞的抽象名詞詞形的并列。所以動詞的抽象名詞表結果，只能和抽象名詞并列，而doing強調動做,就splitting apart而言，無名詞，所以只能用the splitting apart表達此意。

本題選的是B

來源: 新東方