五四时期是中国知识分子思想发生急剧变化的时期。经过学习、宣传马克思主义以及“与劳工为伍”的实践,一批先进知识分子相继从激进民主主义者转变为马克思主义者。正是这批知识分子成为中国共产党早期组织的重要成员。五四运动以后,中国知识阶层中的先进分子详细地介绍了马克思主义各组成部分的主要观点。在唯物史观方 May 4th period is a period of drastic changes in the thinking of Chinese intellectuals. After studying and publicizing Marxism and “practicing with labor,” a group of advanced intellectuals have been transformed from radical democrats to Marxists. It is these groups of intellectuals who became important members of the early Chinese Communist Party. After the May 4th Movement, the advanced elements in the Chinese intellectual class introduced in detail the main points of view of the various components of Marxism. In the historical materialism side