名词性短语的中心词是名词,动词短语的中心词是动词.
名词性短语的功能相当于一个名词,动词短语的功能相当于一个动词.
动名词（动词+ing)属于名词,因此动名词短语属于名词性短语.如：
I hate her crying.（her crying）
I am used to swimming in the pool.（swimming in the pool）
His fatness results from his eating too much.(his eating too much)