一、动名词相当于名词,在句子中作及物动词和介词的宾语,现在分词不能。如:
We enjoy watching TV in the evening.(动名词watching作及物动词enjoy的宾语)
He loves living with his grandparents.(动名词living作及物动词loves的宾语)
I'm thinking about going to Shanghai for a trip next week.(动名词going作介词about的宾语)
She spends lots of time in learning English every day.动名词learning作介词int的宾语)
二、动名词(短语)作主语,现在分词不能。
Living in the countryside is a pleasant thing now.
三、动名词(短语)作表语,现在分词不能。
The boy's hobby is painting.
四、现在分词作谓语,用在进行时态中,这时,其前要加be动词。动名词则不能。
They were playing volleyball when we found them.
五、现在分词作后置定语,动名词则不能。