Question

16．你叔叔离开家乡多久了？
How long has your uncle been away from his hometown？．

Answer 1

分析 How long has your uncle been away from his hometown？

解答 答案：How long has your uncle been away from his hometown？离开leave的动作发生在过去，并持续到现在用现在完成时have/has+过去分词，这里是一个特殊疑问句，特殊疑问词how long多久，后加一般疑问句语序，主语是your uncle，故用has，故How long has your uncle，leave是短暂性动词，与how long连用需用持续性动词，这里用be away from表状态，be的过去分词been，后加地点his hometowm，故答案是How long has your uncle been away from his hometown？

点评 常见的短暂性动词转化成持续性动词：buy-have           borrow-keep     die-be  dead      get  up-be  up    put  on-be on/wear    come/get back-be  back     go to town-be in town    lose-be  missing   catch a  cold-have  a  cold    close-be  closed/not  open  open-be  open    fall  ill/asleep-be  ill/asleep    begin/start-be  on    return--be back  marry---be married   finish--be over      become--be