1）在下列情形下,动名词“语意上的主语”可以省略

1）在下列情形下,动名词“语意上的主语”可以省略
a.“一般性”的事情 x0b b.与主句主语相同
a.Keeping early hours is good for health.x0bb.He is ashamed of being careless.x0b (= He is ashamed that he is careless.)
比较:He insisted on my paying the money.x0b He insisted on paying the money.
注：a.语意上的主语是无生命物体时,不必用所有格,用主格即可
e.g.I am glad of the examination being over.
b.代/名词当主语时,必须用所有格,但当宾语时可用所有格或宾格
He insisted on my paying the money为什么是my paying
什么是语意上的主语?