And the demand that rose in those societies of entry to higher education extended to groups and social classes that had not thought of attending a university before the war.
断句：
① And the demand that rose in those societies of entry to higher education
② extended to groups and social classes
③ that had not thought of attending a university before the war.
各部分结构：
① And +主语(the demand )+定语从句(that rose in those societies of entry to higher education )
② 谓语(extended to)+并列宾语( groups and social classes)
③ 定语从句(that had not thought of attending a university before the war.)
参考译文：这些社会中对获得高等教育的需求，延伸到战前从未考虑过上大学的人群和社会阶层中。