5、语动词一般为延续性动词。例:He has been away from Beijing for two years. = He left Beijing two years ago. When did the train arrive here? B. How long ____ the train ____ here?2.在现在完成时的肯定句中,非延续性动词作谓语动词时,不能和表示一段时间的状语连用。但可以用其他句式来表示同一个意思。例:Lucyhascomeback.The old man died 4 years ago. =Th
6、e old man has been dead for 4 years. He has been away from Beijing for two years. = He left Beijing two years ago. = It is two years since he left Beijing. = Two years has passed since he left Beijing. 3.非延续性动词可以在现在完成时的否定句中作谓语,并可以与for,since引导的时间状语连用,表示动作的延续过程。例如: She
7、 hasn’t bought any new clothes since last year.I haven’t borrowed the book for a long time. 巩固习题: 1. When he arrived at the bus stop, the bus ________ for 20 minutes. A. has left B. had left C. has been away D. had been away 2. I ______ the League for 5 years so fa
8、r. A. joined B. have joined C. have been in 3. The factory _______