He had been up the two previous nights discovering a bug.
问题描述:
He had been up the two previous nights discovering a bug.
1,had been后应该接动词的呀?
2,discovering为什么要用现在分词的形式,它做什么成分?
答
1. 这里的up是一个形容词,起床的,没有睡觉的意思.柯林斯高阶双解词典的解释是If you are up, you are not in bed. 句子中间had been 后面跟一个形容词,表示一直没睡.2. discovering这里是动名词短语做状语修饰主句he...