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1、延续性动词小结,制作人：刘宇松,现在完成时的持续用法表示过去已经开始，持续到现在的动作或状态。使用这一用法是须注意以下两点：注意时间状语的选择现在完成使得这种用法常于for+一段时间，或since+过去时间点或从句（从句一般用一般过去时）等连用。如：He has waited here for an hour.他在这里已等了一小时。We have studied in this school since 2001.自从2001年以来我们一直在这所学校学习。I have worked in this city since I finished middle school.自从我中学毕业就一直在这
2、个城市工作。,注意非延续性动词与延续性动词的转换 非延续性动词可用与现在完成时态，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。,Now lets do some exercise!,Which one is correct?Can you tell me?,He has joined the Party for two years.,He has been a Party member for two years.,I have bought this comp
3、uter for a month.,I have had this computer for a month.,Do this exercise!,I have been here for two years.,He has been in Beijing for three months.,My mother has been away from that factory for ten years.,We have learned English for 5 years.,The film has been on for 10 minutes,They have had a TV for 2 weeks.,I have kept a book for 3 weeks.,He has been dead for ten years.,I have had a cold for several days.,I have been a teacher for 3 years.,The baby has been asleep for half an hour.,The shop has been open for 100 years.,They have known each other for 2 years.,David has slept for 3 hours.,
