答案:① A literary device developed by Dos Passos, which provides an autobiographical account of his life corresponding to the time of the fictionalNarrative. ② Written usually in a stream-of-consciousness style, they record the author’s activities and reflections at roughly the same time that events in the fictional narratives are taking place. ③ These impressionistic accounts recreate his changing moods in a turbulent age, showing that hisPrivate life is part of a greater Cultural complexity.