.瞬间动词转换成持续性动词瞬间动词用于完成时态不能与一段时间状语连用，须转换成持续性动词。1.用相应的延续性动词替换的有：buy-have borrow-keep put on-wearcatch/get a cold-have a cold come/go/become-be 等。eg. 1.We have had the TV set for 3years. 2.I have kept the book for 2 weeks.2.转换成be+名词的有：join the army-be a soldier join the Party-be a Party membergo to school-be a student 等。eg. 1.He has been a soldier for 5 years.2She has been a student for 2 months.3.转换成be+adj/adv.diebe dead finishbe ov
