如何判断逻辑主语I saw him sitting on the grass.sitting是什么词性

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如何判断逻辑主语
I saw him sitting on the grass.sitting是什么词性

sitting 是现在分词作宾补,其逻辑主语是him.因为在该句中句子的主语是I,而sitting的动作则是him发出的,故叫sitting的逻辑主语,也就是说从逻辑上讲该动作是由谁发出的.
再问： My friend told me a story 这句话该如何理解，是否me和a story可以由我发出，我听故事，也可以构成逻辑主语
再答：这个句子中不行，因为 a story是名词而不是动词（或非谓语动词），而且没有含有动词的意义。故不行。逻辑主语一般是针对非谓语动词而言的。非谓语动词应该听说过吧，就是不能在句子独立作谓语的一种动词形式（如不定式，过去分词，现在分词及动名词）。
再问： Mom let me in.那这句话中me in为什么能构成逻辑主语
再答：因为in虽不是动词或不是非谓语动词，是副词，但它带有动词的意呀，“进去”之意。

where is she sitting she is sitting on the grass in the gard The boy was sitting there __ when I saw him.A.cry B.to cry C I saw a dog sitting on the road on my way to the competition When I went into the room,I saw Tim sitting on the floor sur when I visited him the other day,I found him sitting on an a Sitting on the moon I find him sitting(或sit) on the chair.句子对么? Tom' father saw him sitting on some eggs.(改为复合句)Tom's father i like sitting by the wayle on fine afternoons 英语翻译I'm sitting on the moonWatching planet blue,helloLooking i like sitting by the wayle on fine afternoons. I like sitting on the sofa and watching TV.