28-9: Early in the twentieth century, Lake Konfa became very polluted. Recently fish populations have recovered as release of industrial pollutants has declined and the lake’s waters have become cleaner. Fears are now being voiced that the planned construction of an oil pipeline across the lake’s bottom might revive pollution and cause the fish population to decline again. However, a technology for preventing leaks is being installed. Therefore, provided this technology is effective, those fears are groundless. The argument depends on assuming which of the following? A: Apart from development related to the pipeline, there will be no new industrial development around the lake that will create renewed pollution in its waters. B: Other than the possibility of a leak, there is no realistic pollution threat posed to the lake by the pipeline’s construction C: There is no reason to believe that the leak-preventing technology would be ineffective when installed in the pipeline in Lake Konfa. D: Damage to the lake’s fish populations would be the only harm that a leak of oil from the pipeline would cause. E: The species of fish that are present in Lake Konfa now are the same as those that were in the lake before it was affected by pollution. 这题答案是B, 可是我对A有点疑问 乍看之下觉得好像在讲差不多的东西 A是错在industrial development跟pipeline’s construction无关 ? 那其他选项要麽删掉, 有甚麽明确的方法吗? 靠感觉真的很不可靠... 在有时间压力的情形下, 要怎麽快速把混淆的选项揪出来啊? 作CR常会剩下两个选项, 然後就选错的那个= = assumption的诀窍是甚麽我还是拿不稳, 有没有好心的大大或牛牛能指点迷津.. 希望考前能有机会被点醒QQ -- --

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