一、延续性动词与非延续性动词的特征
英语中,按动作发生的方式、过程的长短,可将动词分为延续性动词和非延续性动词。
延续性动词,也叫作持续性动词,表示能够延续的动作,这种动作发生后可以一直持续下去。如:learn, work, stand, lie, know, walk, keep, have, wait, watch, sing, read, sleep, live, stay等。
非延续性动词,也叫作终止性动词、瞬间性动词或短暂性动词,表示不能延续的动作,即动作从发生到结束所持续的时间非常短,且大多都是动作发生后也就马上结束。如open, close, finish, begin, come, go, arrive, reach, get to, leave, move, borrow,buy等。
二、延续性动词与非延续性动词的用法
1、延续性动词可以和表示"一段时间"的状语连用。表示"一段时间"的短语结构有:for two weeks, in/during the past three years, since 1990, how long, from Monday to Friday,between 8:00 to 11:00, all the year round等。如:
I have learned English since I was six years old.从六岁以来,我就学英语了。
It’s said that it will rain for three days.据说要下三天的雨。
2、非延续性动词表示的动作具有短暂性和不可持续性等特点,因此,其肯定句不可与表示“一段时间”的状语连用。但是非延续性动词的否定结构表示状态时,可以和表示“一段时间”的状语连用。如:
正确:He has bought some books.(没有表示“一段时间”的状语)
正确:He hasn’t bought any books for a long time.(否定句可与表示“一段时间”的状语连用)
错误:He has bought the books for 3 days.(肯定句不能和表示“一段时间”的状语连用)
3、while引导时间状语从句时,表示的是一个较长的时间或过程,属于“一段时间”,从句中的谓语动词用延续性动词。如:
What are you doing while I’m watching TV?我看电视时,你在干嘛?
三、非延续性性动词转延续性动词的规律
1、用意义相同或相近的延续性动词替代。如:
borrow→keep, buy→have, become →be, get up→be up, fall ill →be ill, put on→ wear, come here →be here, go there →be there, get to know → know, go (get) out →be out, fall asleep→ be asleep, get/catch a cold→have a cold
2、用“be+形容词”替代。如:
die→be dead, open→be open,end/finish → be over,
3、用“be+介词或副词”替代。如:
begin/start→ be on, join→be in/be a member of, leave→be away, come→be in/here, go→be away/out, reach/arrive/get to→stay/be in