策略：正确答案常常依据段落中所占篇幅较多或作者要强调的观点来归纳
例：Building big commercial buildings underground can be a way to avoid distinguishing or threatening a beautiful or ‘environmentally sensitive’ landscape. Indeed many of the buildings which consume most land - such as cinemas, supermarkets, theatres, warehouses or libraries - have no need to be on the surface since they do not need windows.
分析：此段总共包含两个句子，但各句表明不同的观点。前者认为修建大型地下建筑可以避免破坏城市风景，而后者则强调很多建筑因为不需要窗户可以被建在地下。Indeed(确实，甚至)的出现，正好表明本段的重心是要突出强调后者观点，即有些建筑不需要窗户(自然采光)。所以毫无疑问地选择Some buildings do not require natural light。
