当 appreciate 单独接动名词时，表示动名词是子句的主词。但如果 appreciate 接的是所有格形容词 动名词，动名词就不是指子句的主词了。appreciate 也可以接名词。
举例
- i appreciate having time off work.
- i appreciate your giving me time off work.
- i appreciate time off work.
- we appreciate eating chocolate cake.
- we appreciate his eating our chocolate cake.
- we appreciate chocolate cake.