介词后面的即可说是介词宾语.,也可说是动词短语be+adj+prep的宾语.如
I am proud of my brother's grades.
He was surprised at his being late again.
We are concerned about your health.
http://wenku.baidu.com/view/67f3c3c758f5f61fb736661c.html介词后面在句中作表语
状语
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