【正确答案】：
A.HERMAN MELVILLE USED SYMBOLS,THAT IS,OBJECTS OR PERSONS WHO REPRESENT SOMETHING ELSE.(1分) DIFFERENT PEOPLE ON BOARD THE SHIP ARE REPRESENTATIONS OF DIFFERENT IDEAS AND DIFFERENT SOCIAL AND ETHNIC GROUPS.(1分)
B.FACTS BECOME SYMBOLS AND INCIDENTS ACQUIRE UNIVERSAL MEANINGS; THE PEQUOD IS THE MICROCOSM OF HUMAN SOCIETY AND THE VOYAGE BECOMES A SEARCH FOR TRUTH.(2分)
C.THE WHITE WHALE，MOBY-DICK，SYMBOLIZES NATURE FOR MELVILLE，FOR IT IS COMPLEX，UNFATHOMABLE，MALIGNANT，AND BEAUTIFUL AS WELL.(1)THE WHALE REPRESENTS ONLY EVIL.(1分) IT IS LIKE A WALL，HIDING SOME UNKNOWN，MYSTERIOUS THINGS BEHIND.(1分)
D.AHAB WILLS THE CREW TO JOIN HIM IN THE PURSUIT OF THE BIG WHALE SO AS TO PIERCE THE WALL,TO ROOT OUT THE EVIL,BUT ONLY TO BE DESTROYED BY EVIL,IN THIS CASE,BY HIS OWN DESIRE,HIS MADNESS.(2分)
E. MOBY DICK IS A MYSTERY OF THE UNIVERSE AND THE VOYAGE OF THE MIND WILL REMAIN A SEARCH OF THE TRUTH.(1分) 
【题目解析】：50. A.赫尔曼·梅尔维尔使用符号，也就是代表其他事物的物体或人。船上不同的人代表着不同的思想，不同的社会和民族。 B.事实成为符号，事件获得普遍意义;裴廓德号是人类社会的缩影，航行成为对真理的探索。 C.白鲸《白鲸》对梅尔维尔来说是大自然的象征，因为它是复杂的、深不可测的、恶毒的，也是美丽的。鲸鱼只代表邪恶。它就像一堵墙，后面藏着一些未知的、神秘的东西。D.亚哈要船员们跟他一起去追击那条大鲸，以便击穿那堵墙，铲除邪恶，但结果却被邪恶所毁灭，在这种情况下，是被他自己的欲望，他的疯狂所毁灭。 E. 《白鲸记》是宇宙之谜，人类的心灵之旅仍将是对真理的探索。