【正确答案】He has been promoted to the position of department manager for his excellent performance.

【答案解析】[解析] 本句翻译时要注意英汉表达上的差异。英语中习惯先说果后表因，“提升”一词英文中用“promote”表示。“由于他工作表现出鸟”可译为“for his excellent performance”。