老师拍了拍他的肩膀，表扬他考试取得了进步。

The teacher gave him a ___pat-on-the-back for improving his test scores.

老师在班上表扬了小明，给了他一个鼓励的轻拍后背。

The teacher gave Xiao Ming a ___pat-on-the-back for his excellent presentation in class.