我们知道，和现在都是由动词+ing构成的，而且构成的方式完全一样。那么如何区分动名词和现在分词的用法呢什么是现在分词？
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。
Swimming is my fvorite in summer.
Living in the countryside is a pleasant thing now.
三、动名词(短语)作表语，现在分词不能。
My favorite sport is diving.
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。
I am reading a storybook now.
They were playing volleyball when we found them.
五、现在分词作后置定语，动名词则不能
There is boy standing at the door now.
I saw a car running through the forest.