FEMALE PROFESSOR: How's it going, Tom?

Para3

MALE STUDENT: Great. I was- oh! I wanted to tell you... y'know the guest speaker you brought into class last week, from the wildlife conservation center?

Para4

FEMALE PROFESSOR: Susan Brown, yes. She's an old friend from graduate school.

Para5

MALE STUDENT: Her talk, on wildlife-population modeling... well, it was very theoretical...

Para6

FEMALE PROFESSOR: Mmm. It was certainly a change of pace from what we usually do.

Para7

MALE STUDENT: Yeah, but I think I pretty much followed along. Plus, I like to see people get so passionate about ecology...

Para8

FEMALE PROFESSOR: Oh right... ecology's your major field of study, isn't it... yes, Susan Brown's certainly a lively speaker. What a shame she didn't go into teaching.

请问老师，这里的get如何理解，一般get +adj 理解成linking verb, 变得...。但是根据上下文，这里的get明显是have的意思，我查阅了字典没有找到这种用法。