186. (32899-!-item-!-188;#058&007188) (GWD-6-Q41) The greatest road system built in the Americas prior to the arrival of Christopher Columbus was the Incan highway, which, over 2,500 miles long and extending from northern Ecuador through Peru to southern Chile.
A. Columbus was the Incan highway, which, over 2,500 miles long and extending B. Columbus was the Incan highway, over 2,500 miles in length, and extended C. Columbus, the Incan highway, which was over 2,500 miles in length and extended D. Columbus, the Incan highway, being over 2,500 miles in length, was extended E. Columbus, the Incan highway was over 2,500 miles long, extending
选项分析： A 选项中which后没有动词； B 中was和extended对应不一致，中间不能用连词； C DE选项都有GMAT语法优选的同位语标志，C选项没有主语， D 中the Incan highway搭配was extended错误，同时being词组一般是错误选项标志 E 选项正确，同位语正确选项标志，成分完整而且分词修饰准确。
A和C我知道那里错了，A 是which后没有动词，C是没有主语；D是有being错；对于B选项，解释说was和extended对应不一致，中间不能用连词，是不是因为主语是The greatest road system ，谓语是was, extend只能以现在分词的形式来做 the Incan highway的伴随状语，而不能用and联结谓语was和extended，这样就有歧义，即为The greatest road system extended了？所以选E
188. (28112-!-item-!-188;#058&002759) (GWD-7-Q33)
The health benefits of tea have been the subject of much research; in addition to its possibilities for preventing and inhibiting some forms of cancer, the brewed leaves of Camellia sinensis may also play a role in reducing the risk of heart disease and stroke.
A. in addition to its possibilities for preventing and inhibiting B. in addition to its possibilities to prevent or inhibit C. besides the possibility that it prevents and inhibits D. besides the possible preventing and inhibiting of E. besides possibly preventing or inhibiting
选项分析： A GMAT简洁原则，besides优于in addition to，排除A； B 同上 C 而优选原则中，形容词副词优于名词，C选项显累赘排除， D 中preventing和inhibiting of比E繁琐 E 正确
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发表于 2010-6-7 05:43:37
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