lsat test5/s2/q4

mzyzhu · 发表于 2003-5-10 23:11:00

Q4. A work of architecture, if it is to be both inviting and functional for public use, must be unobtrusive, taking second place to the total environment. Modern architects, plagued by egoism, have violated this precept. They have let their strong personalities take over their work, producing buildings that are not functional for public use.

Which one of the statements below follows logically from the statements in the passage?

(A) Unobtrusive architecture is both inviting and functional.

(B) Modern architects who let their strong personalities take over their work produce buildings that are not unobtrusive.

(C) An architect with a strong personality cannot produce buildings that functional well for the public.

(D) A work of architecture that takes second place to the environment functions well for public use.

(E) A work of architecture cannot simultaneously express its architect’s personality and be functional for public use.

答案是B, 但是按照充分条件必要条件来推理，B似乎也不对。

原文可简写为两个推理：
(1) if a architecture is both inviting and functional for public use, it is unobtrusive。推理可表示both inviting and function for public use是unobtrusive的充分条件。
(2) if modern architects let strong personality take over their works, their works will no be functional for public use. Strong personality take over the work是not functional for public use的充分条件。

对B的疑问关键在于推理（3）not public functional for public use 是否能推到not unobtrusive. 如果functional for public use 是unobtrusive 的充分条件，推理（3）是不成立的。

只有当推理(1)为必要条件时，B才成立。但是将(1)理解为必要条件将抵触if 引导充分条件从句这一原理。

lsat test5/s2/q4

lsat test5/s2/q4

所属分类: GMAT考试

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