29.Young as he is,he has been honoured as an advanced worker many times,for having got great achievements in his teaching.
析:as引导的让步状语从句。
虽然他年轻,但由于他工作成绩卓著,多次被评为先进工作者。
30.On hearing that I failed in the contest,I could hardly hold back my tears.
析:on与带有动词性意义的名词或动名词连用,表“一……就……”。
听到我没有赢得竞赛，我忍不住流下眼泪。
