1.The journalist kept his word, and this is the first time the incident has been reported.
【参考译文】记者信守诺言,这次是这个故事首次被报道。
【结构解析】keep one's word意思是“信守承诺”,it/this is the first time 后面的动词用过去分词形式。
2.It would do you no good
【参考译文】它对你没什么用。
【结构解析】sth. do sb. good意思是“某物对某人有好处”。
3.Coolidge, knowing there was $ 80 in the billfold, persuaded the intruder to sit down and talk.
【参考译文】柯立芝知道钱包里有80美元,他劝飞贼坐下来谈谈。
【结构解析】“ knowing there...”是现在分词做状语。