Abstract: The novels of Chinua Achebe keep a record of secret history of African clan in the 20th century. He investigates the changes of the clan, especially the decline of rural ethics through the protagonists ethical identity, thus reflects the changes of the clan politics and social mechanism. This paper reads Achebes novel against the social background of ethics, religion and law when Africa was under the colonial force. Through the close reading and the historical context of text, Ezeulus ethical tragedy is analyzed from the perspective of identity crisis, thus the ethical mechanism of African clan is illuminated.

Key words: Arrow of God, identity crisis, ethical dilemma, ethical choice, ethical expression

摘要： 阿契贝的小说《神箭》记录了20世纪非洲部族社会的“秘史”。作家侧重于从人物的伦理身份出发，通过展现其被疏离的过程，考察部族社会的变迁，尤其是乡村伦理的衰微，进而折射出部族政治和社会机制的变化。结合小说创作的历史语境，以“身份危机”为切入视角，探究伊祖鲁的伦理悲剧，继而阐明该部作品所隐含的非洲部族社会的伦理机制。

关键词: 《神箭》, 身份危机, 伦理两难, 伦理选择, 伦理表达