There is a pair of glasses on the desk. 分析一下句子成分,是主谓宾的那种.

问题描述:

There is a pair of glasses on the desk. 分析一下句子成分,是主谓宾的那种.

there be 结构实际上是一种倒装语序,1,There is 2.a pair of glasses 名词短语一副眼镜,中心词是pair 3.on the desk 在课桌上,是介词短语.
a pair of glasses is on the desk.那on the desk 是不是作为后置定语呢?