I caught the child just in time before he fell into the river.

题目

I caught the child just in time before he fell into the river.
just in time 和before he fell into the river的关系是并列的吗?是并列做句子的状语,还是
before he fell into the river修饰 just in time

答案

1.两者为并列关系,都做句子的时间状语.
严格讲,后来的这个时间状语从句是对just in time的详细说明.
2.如果用before he fell into the river修饰just in time,岂不是前者要做定语从句/同位语从句,但是before不可能做定语从句/同位语从句的引导词.