首先更正一下,是grammar-based吧。
encouraging是个形容词,译为:"振奋人心的,令人鼓舞的",在这里不作encourage的进行时讲。
给你一些例句:
His encouraging words revived my drooping spirits.
他令人鼓舞的话使我颓丧的精神振作起来。
The prognosis for the future of the electronics industry is encouraging.
预测电子工业的前途一片大好.
It's encouraging to receive a favourable report on one's work.
工作得到好评是令人鼓舞的.
Looked at in isolation, these facts are not encouraging.
孤立地看,这些事实并不乐观。