当场抓住小偷后，这个有道德的青少年收获了欢呼与掌声，让他感觉似乎是某个励志故事的男主角。(greet)

After catching the thief on the spot, the ethical teenager was greeted with cheers and applause, making him feel like the hero of some inspirational story.

考查非谓语动词、介词短语、动词时态语态和形容词。“在……之后” 是介词after，后面用动名词作宾语，“抓住小偷” 是catch the thief，“当场” 是介词短语on the spot，“有道德的” 是形容词ethical，作定语修饰名词 “青少年” teenager，主语teenager和谓语 “收获了” greet with是被动关系，表示过去发生的事用一般过去时，宾语是 “欢呼与掌声” cheers and applause，“让某人做某事” 是make somebody do，和谓语动词之间没有连词，用现在分词表主动，“感觉似乎” 是feel like，“某个励志故事的男主角” 表示为the hero of some inspirational story，形容词inspirational作定语。故翻译为 “After catching the thief on the spot, the ethical teenager was greeted with cheers and applause, making him feel like the hero of some inspirational story.”。