本册教材和第五册一起，构成整套教材的第三阶段，在单元设置及学习重点的安排上，这两册教材呈现出一种整体性。如本册教材中阅读部分设置的单元分别是：科技论文、语言学论文、《红楼梦》专题、《史记》专题，再看看第五册中阅读部分的编排（哲学论文、文艺学论文、鲁迅专题 Together with the fifth volume, this book forms the third stage of the whole set of textbooks. In the arrangement of units and the arrangement of learning priorities, the two volumes of textbooks present a kind of integrity. For example, the units set in the reading section of the textbook are: scientific papers, linguistics papers, the topic of “A Dream of Red Mansions” and the topic of “Historical Records”. Let’s take a look at the arrangement of the reading part in Volume 5 (Philosophical Theses, Literary Studies, and Lu Xun Topics