1. When Tom was walking down the stairs, he fell.
2. Tom was walking down the stairs when he fell.
记忆里when引导的时间状语从句, when后既可跟延续性动词又可跟非延续性动词,但第2句翻译起来总有些变扭,不知是否正确,还请老师帮忙解答,谢谢!
When Tom was walking down the stairs, he fell.
这里的 When Tom was walking down the stairs 是时间状语从句。
Tom was walking down the stairs when he fell.
这里的 when 表示“这时(突然)”,Tom was walking down the stairs 和 when he
fell 是并列句。