1、延续性动词和瞬间动词的转化1. 延续性动词表示能够延续的动作。如：study, 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。表示时间段的短语有:for+ 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。2. 终止性动词也称非延续性动词、瞬间动词或
2、短暂性动词，表示不能延续的动作，这种动作发生后立即结束。如open, close, finish, begin, come, go, arrive, reach, get to, leave, move, borrow ,buy ,die等。终止性动词又叫点动词，可用于现在完成时态，但由于动作是瞬时间完成的所以不能与for或since引出的时间状语连用。英语中常见的非延续性动词在完成时态中可改为相应的表示延续性的动词或短语，这时可与表示一段时间的的状语连用。、用相应的延续性动词； 瞬间动词延续动词Put on(穿上)Have/has wearborrow（借入）have/has keptbuy
3、(买)have/has hadcatch/get a cold(得了感冒)have/has had a coldcome/go/become(来/去/变成)have/has been、转换成 be名词; 瞬间动词延续动词go to school(去学校)have/has been a student、转换成be + adj./adv. :瞬间动词延续动词open sth(开)have/has kept sth openleave（离开） have/has been awaybegin/start(开始)have/has been on die（死）have/has been deadfinish（完成）have/has been overjoin(加入)have/has been on +组织机构have/has been a member of+组织机构,、转换成be + 介词短语 : 瞬间动词延续动词go to school(去学校)have/has been in school
