例：
During the opera's most famous aria the tempo chosen by the orchestra's conductor seemed __, without necessary relation to what had gone before.
(A) tedious
(B) melodious
(C) capricious
(D) compelling
(E) cautious
〖解答〗
本题空格后的"without necessary relation"作一反面陈述，代入空格的词汇应表达与necessary relation相反的内涵。答案为(C)。
〖词汇〗
aria: 曲调，咏叹调
tempo:速度，节奏
melodious: 旋律优美的，悦耳的
capricious: 变化无常的，任性(意)的
compelling：1.强制的 2.激发兴趣的 3.令人信服的
