Mr Smith quit his job as an officer and took up a position as a research in an academy.
这句话中 as an officer 和 as a research in an academy 在句子里作什么成分？是做后置定语吗？
我个人学习的理解，理性参考。
1.as本质上就是信息补充。
2.至于是什么成分，我认为不能一棒子打死，如果你认为他是状语，可以看作约等于A quit his job，A is an officer，为了简约创造了介词as引导介词短语作为状语，至于2句子关系见仁见智。如果你认为是后置定语那就是说这个工作本身就是军官；后者同理。
