分析一下if it were to do so中it的指代,(to do so是指melt during summer) 1 如果it 指代little of the polar ice, 则意思与原句意相反 2如果it指代the polar ice, 因为没有说明how much polar ice融化,是大量,中等,还是少量,这直接影响到是否能得到结果the water levels of the oceans would rise 250 feet and engulf most of the world’s great cities. 因此用otherwise更准确,little的反面是large amount,只有在large amount of polar ice融化的时候,才能有上述结果出现 therefore, 如果此题中is so reflective中is该省,而or else=otherwise, 则答案应该是C |