有个英语语法问题请教（万望解答，感激不尽）

1.Tom had been rushed to the hospital after being found lying in the snow near her home.请问句中being和lying为什么是-ing形态？

答：
after后面如果跟非谓语动词，我们只能把after看作介词，不能看作连词，非谓语动词中，只有动名词才可以做介词的宾语，因此要填being found.

lying在这里是现在分词，如果是句子的话它应该是宾语补足语或主语补足语。
如果我们把...after being found lying in the snow near her home.变成一个完整的句子的话，应该是这样的：after he was found lying in the snow near her home.
这句话是被动语态，lying充当主语he的补足语，叫主语补足语。
再把这句话变成主动语态:after we found him lying in the snow near her home.
lying就是宾语him的补足语，叫宾语补足语。

为了使句子显得简洁，生动，多变，本句采用了非谓语动词的形式，而不是从句的形式。

2.The person knew my parents and of my association with Tom.
为什么要加那个of？

答：
know表示“认识某人”可以直接在know后面加宾语
know表示“知道，了解；听说过某事”就一定要在know的后面加of.

1. Tom had been rushed to the hospital
after being found
lying in the snow near her/his home.

after+?
Tom was found lying in the snow

2.The person knew my parents
and [he or she knew] of my association with Tom.

he or she may not know me and/or Tom.

Good luck.

Only understand English in English, never in Chinese.

1 after后面接动名词短语所以是being；lying表示躺在雪地里的一种状态；
2 know of知道，了解，听说。其实我觉得也可以不加of，因为know既可作及物动词又可作不及物动词