现在进行时
now 现在正在进行的动作
now, this week, at this moment，right now 等 ；一个准确的现在时间；或者用look, listen。
He is watching TV. I am doing my homework. The children are flying kites.
动词的现在分词形式
Play work start visit learn clean look open walk finish jump ask talk cook wash watch
They are watching TV
He is playing basketball
She is cleaning the room
They are cooking dinner
use dance save make take come leave have write ride
My brother is saving money. She is dancing in the party
stop sit run get put shop cut
The couple are shopping
The artist is cutting papers
lie tie die
He is lying
I'm dying