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题库 / Prep2012-SC-55
Though widely used for decades to fuel home heating systems, utility boilers, and industrial furnaces, natural gas has still accounted for far less of the energy consumed in the United States than has oil.
natural gas has still accounted for far less of the energy consumed in the United States than has oil
natural gas has still accounted for far less of the energy consumed in the United States as oil
natural gas still has accounted for far less of the energy consumed in the United States as oil has
still far less of the energy consumed in the United States has been accounted for by natural gas as by oil
still far less of the energy consumed in the United States has been accounted for by natural gas than has oil
题目分析：
Though widely used for decades to fuel home heating systems, utility boilers, and industrial furnaces在句首做伴随状语，be used在字面上的主语和被修饰的句子的主语相同。在(A)(B)(C)中，be used的主语为natural gas；(D)(E)中其主语为far less of the energy。
选项分析：
A选项：Correct. 本选项在语法和逻辑上均是正确的。
B选项：more+than为习惯表达，不能写成more+as。
C选项：本选项错误同(B)。
D选项：在逻辑上，被作为能源用于房屋加热系统，热水壶，和工业熔炉的东西应该是“天然气（natural gas）”，而不是“在美国被消耗的能源（the energy consumed in the United States）”。
E选项：本选项错误同(D)。
has oil-->oil has 倒装，一样；
请注意伴随状语与主语之间发出动作是否关系正确
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