初中《生物》第二册“淋巴的形成过程示意图”（见图1），虽能说明组织液的生成和回流，但未用文字在图中说明毛细血管动脉端和毛细血管静脉端；未用箭头标出毛细血管血流方向；组织液的生成与回流箭头标放位置也不够科学。因此，学生认图效果不理想。笔者对图1进行改进为图2， The junior middle school “Biology” Volume II “Schematic map of the lymphatic formation process” (see Figure 1), although it can explain the formation and backflow of tissue fluid, but did not use text to illustrate the capillary artery and capillary vein end; unused arrows The direction of capillary blood flow is marked; the formation of the tissue fluid and the position of the return arrow are not scientific enough. Therefore, the student’s figure recognition effect is not satisfactory. The author makes improvements to Figure 1 as Figure 2,