自己満英文解釈〜阪大〜

The social experiences and values of the old and the young have always been in conflict; if younger people did not question the advice and beliefs of their parents, little change of　‘progress’ would ever occur.  But with the accelerating speed of change in modern times, the conflicts between members of different generations, or between those people anxious to adjust to change and those less inclined to do so, were in danger of becoming more harmful than helpful. Furthermore, the very phrase by which these conflicts are described, the ‘generation gap’, was becoming out of date.

A or, BがAすなわちBは頻出なので覚えておきたい。あとは助動詞の過去形を見たら仮定法を想定することも忘れず。