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1、延续性动词与非延续性动词及其转换动词按其动作发生的方式、发生过程的长短可分为延续性动词 与非延续性动词。一.延续性动词 表示能够延续的动作 ，如：learn, work, stand, lie, know, walk, keep, have, wait, watch, si ng, 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+段时间,女口 : for 2 years; since从 句，女口 sin ce he came here; sin ce+过去时间点名词 ，女口 sin ce last year, si n
2、ee 5 days agoo例： He has lived here for 6 years.You can keep the book for 5 days.二非延续性动词 也称终止性动词、瞬间动词 ，表示不能延续的动作，这种动作 发生后立艮卩结束。 女口 :open, die, close, begin, finish, come, go, move, borrow, lend, buy 等。非延续性动词在肯定句中与表示时间点的状语连用，如:two years ago; at5 o'clock;例:He died 5 years ago.三.延续性动词与非延续性动词之间的转换：（考
3、试重点，学生易错。）例： He left five minutes ago. = He has been away for five minutes.这句话的意思是指他 离开的动作是5分钟之前发生的，是过去时。也就是 说从他离开到现在已经有五分钟了，这个动作是延续的，要用现在完成时，并 且要把原来的短暂性动词改为延续性动词。一些短暂性动词及相应的延续性动词arrive ( get to /reach ) be here (in) begin(start) be on die fbe deadcome here (back ) be here (back) leave -be away (fro
4、m) fall ill(sick, asleep)-be ill(sick, asleep)get up fbe upgo/ get out (there ) be out (there ) finish -be over put on -A/ear 或 be on open t be open (keep sth open ) join -4)e in 或 be a member of +组织机构 close fbe closedgo to school t be a student borrow keep buy/get have catch (a cold)have(a cold)get to know十nowbegin to study study come to work work move to t live in finish/endbe overcome to t be in sit down t be seated marrybe marrieddressbe dressedbecome f be