理查德·赖特是位隐喻大师,他继承了黑人文学中的隐喻性传统,在《土生子》中塑造了一个新黑人的形象——托马斯·别格,粉碎了白人主流文化中黑人的概念化形象——汤姆叔叔。文章根据隐喻理论和黑人文学中的隐喻性传统,分析小说中特定的意象、场景和结构,旨在揭示小说中的隐喻意义:在白人主流文化的挤压下,美国黑人的恐惧心理、艰难的生活处境和黑人文化身份的危机。 Richard Wright, a master metaphor, inherited the metaphorical tradition of black literature and shaped the image of a new Negro among “natives” - Thomas Beggar, smashing blacks in mainstream white culture Conceptual image - Uncle Tom. Based on metaphor theory and metaphorical tradition in black literature, the article analyzes the specific images, scenes and structures in the novel to reveal the metaphorical significance in the novel: under the squeeze of the white mainstream culture, Afro-American fear and hardship Living conditions and black culture identity crisis.