Here are some more ways we use the present continuous:
1 To take abbot ongoing changes
You are getting fatter and fatter.
He is becoming a responsible young man.
2 To talk about repeated actions
That boy is kicking the back of my chair.
The cat is scratching that sofa to pieces.
3 To talk about background events in a story
Then she goes to the door and opens it and the monster is standing there!
She is doing her homework and the phone rings.