【正确答案】：
A MODERNISM TAKES THE IRRATIONAL PHILOSOPHY AND THE THEORY OF PSYCHO-ANALYSIS AS ITS THEORETICAL BASE. IT REJECTS RATIONALISM, WHICH IS THE THEORETICAL BASE OF REALISM.
B. MODERNISM EXCLUDES FROM ITS MAJOR CONCERN THE EXTERNAL, OBJECTIVE, MATERIAL WORLD, WHICH IS THE ONLY CREATIVE SOURCE OF REALISM.
C. BY ADVOCATING A FREE EXPERIMENTATION ON NEW FORMS AND NEW TECHNIQUES IN LITERARY CREATION, MODERNIST CAST AWAY ALMOST ALL THE TRADITIONAL ELEMENTS IN LITERATURE SUCH AS STORY, PLOT, CHARACTER, HOMOLOGICAL NARRATION.
D. MARK TWAIN PAYS MORE ATTENTION TO THE "LIFE"OF THE AMERICANS. HE IS KNOWN FOR HIS WONDERFUL CHARACTERIZATION OF THE PROTAGONIST, HUCK.
E. FAULKNER'S WORKS ARE SET IN THE AMERICAN SOUTH. HE FRAGMENTS THE CHRONOLOGICAL TIME, EMPLOYING THE MODEM STREAM-OF -CONSCIOUSNESS TECHNIQUE.
【题目解析】：本题考查的是基于马克·吐温和福克纳的作品分析现代主义和现实主义文学的区别。1.现代主义以非理性哲学和精神分析理论为理论基础。它反对理性主义，而理性主义是现实主义的理论基础。2.现实主义唯一的创作源泉是外部的、客观的、物质的世界，而这不属于现代主义文学的主题范围。3.现代主义作家主张对文学创作中的新形式和新技巧进行自由的尝试，抛弃了文学中几乎所有的传统元素，如故事、情节、人物、同源叙事等。4.马克·吐温更注重美国人的“生活”，以对他笔下的主人公哈克的精彩刻画而闻名。5.福克纳的作品主要设定在美国南部，他运用现代意识流手法，将时间按时间顺序进行分解。