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学员疑问：这句长难句的主干是什么？
The intersection of people’s desire to be fashionable and to be entertained with capitalism’s need to fine new markets and enhance profits has made mass media a major industry in the United States and other affluent nations.
老师解答：句子主干为：The intersection of people’s desire with capitalism’s need（主语）has made（谓语）mass media（宾语）a major industry（宾补）；其中to be fashionable and to be entertained 是不定式短语作后置定语，修饰desire；to fine new markets and enhance profits是不定式短语作后置定语，修饰need；in the United States and other affluent nations是介词短语作地点状语。
点评分析：这句话的主干是：主谓宾宾补。之所以比较难看出来，是因为中间含有不定式作后置定语，分别修饰了前面的名词，所以平时练习分析长难句时，要清楚主干是由五种基本句型组成的，同时也要了解修饰成分：定语和状语是如何扩句的。
