現(xiàn)在進行時主要用于：
1 、表示現(xiàn)在或現(xiàn)階段正在進行的動作。
e.g. Listen, someone is crying.
What are you doing these days?
2 、代替一般現(xiàn)在時，表示經(jīng)常性動作或狀態(tài)，而含有某種感情色彩。
e.g. How are you feeling today?
你今天感覺怎樣?(顯得親切)
He is doing well in his lessons.
他的功課很好。(贊揚)
You are always boasting.
你老愛吹牛。(厭煩)
3 、動詞 go, come, leave, arrive 等表將要發(fā)生的動作時。
e.g. They are leaving for Shanghai.
與這種時態(tài)連用的時間狀語常有：
now, these days, recently, this week 等。