He asked her whether she needed help dressing句子成分

问题描述:

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.