He asked her whether she needed help dressing句子成分dressing此处为什么词性,做何成分?

He asked her whether she needed help dressing句子成分dressing此处为什么词性,做何成分?
He asked her whether she needed help dressing句子成分
dressing此处为什么词性,做何成分?

He asked her whether she needed help dressing句子成分dressing此处为什么词性,做何成分?
从结构看dressing此处应该是一名词.做help的宾语.整个句子he做主语,asked做谓语,her为直接宾语,whether she needed help dressing做宾语从句,whether为引导词.she做从句的主语,needed此处做情态动词和help一起做谓语,dressing就为help的宾语.

作动词吧，help后面用动名词

名词
宾语从句中help的宾语