瞬间性动词的转换问题专题一 . 延续性动词 1. 表示能够延续动作的动词，如：learn, work, stand, lie, know, walk, keep, have, wait, watch, sing, read, sleep, live, stay 等。延续性动词可以与表示时间段的状语连用。 2. 表示时间段的短语有: for+ 一段时间, for 2 years; since 从句, since he came here; since+ 时间点名词, since last year, since 5 days ago; how long; for a long time 等。 例: He has lived here for 6 years.You can keep the book for 5 days.I stayed there for 2 weeks last year.How long did you stay there last year? 二 . 非延续性动词 1. 非延续性动词也称终止性动词、瞬间动词，表示不能延续动作的动词
