延续性动词和短暂性动词转换归纳瞬间动词可以用于现在完成时，但不能和表示一段时间的状语连用如:for 和since 所引导的时间状语都表示一段时间.那就要将瞬间动词转化为表延续的动词或者表状态的be+名词形容词或副词介词短语等。 leave been away from buyhave borrowkeep diebe dead get upbe up put onbe on / wear come / get backbe back go to townbe in town losebe missing catch a coldhave a cold closebe closed / not open open be open fall ill / asleep be ill / a
