请教刘老师：
He is more a worker than a teacher.与其说它是老师，不如说他更像一名工人。
She is more diligent than wise.与其说她聪明，不如说她勤奋。
第二句话的more为副词是无疑的， 学生想问的是第一句话中的more是不是是代词 为 more of a worker结构的省略？ more并非起修饰用途。
He is more a worker than a teacher. 与其说它是老师，不如说他更像一名工人。
这句话，more 由 much 变来。much 是“程度副词”。假如后面接了of ，much 或 more 就是“代词”。
以下3种表达都正确，只不过结构不同：
He is more a worker than a teacher.
He is more of a worker than a teacher.
He is more like a worker than a teacher.
再举几个没 of 的例句：
1. The book seems to be more a dictionary than one on grammar.
与其说这是本语法书，倒不如说是一本词典。
来自《现代汉英综合大词典》
2. It wasnt actually a holiday , more a working break, if you like.
这事实上不是假日，可以说是工作间歇吧。
来自《简明英汉词典》
3. Current thinking holds that obesity is more a medical than a psychological problem.
目前的看法觉得，肥胖更多的是医学问题而非心理疾病。
来自柯林斯例句
4. He is more a sprinter than a swimmer.
他是短跑健将，而不是游泳选手。
来自辞典例句
5. If Margaret Thatcher wins, she will be more a Leader than a Prime Minister.
假如玛格丽特·撒切尔获胜，她将成为领袖，而不是首相。
来自著名人物的演讲
6. The arrangement was more a formality than a genuine partnership of two nations
这一协定与其说体现了两个国家之间真的的伙伴关系，还不如说是一种形式。
《柯林斯高阶英汉双解学习词典》
7. The exhibition at Bostons Museum of Fine Arts is more a production than it is a museum display
波士顿美术博物馆的展览与其说是一次博物馆展出，倒不如说是一场精心设计的展演活动。
《柯林斯高阶英汉双解学习词典》