时态语态(现在完成进行时).pptx

现在完成进行时现在完成进行时态的形式I’ve been waiting for you since eight o’clock in the morning. 我从早上8点钟一直在等你。It has been raining for three hours. 雨一直下了三个小时了。What book have you been reading recently? 最近你一直在读什么书？比较一下两种不同表达I have been reading this novel. 我一直在读这本小说。（我仍然在读）I have read two novels. 我已读过两本小说。（可能刚读过，也可能很久以前读的）I have been writing letters. 我一直都在写信。I have written three letters. 我已经写完三封信了。Now we have cleaned the room, we can move the things in. 既然我们已经打扫完房间，我们可以把东西搬进来了。We’ve been cleaning the classroom, but we haven’t finished yet. 我们一直在打扫教室，但还没干完。有关短暂性动词的用法有些动词不能用于现在进行时，如be, have, like, love, know, see, hear等，这些词同样也不能用于现在完成进行时。还记得有哪些词是短暂性动词？open, go, come, die, arrive, leave, lose, fall, buy, sell, close, join, finish我好久没见到你了。I haven’t seen you for ages. 我一直爱她。I have loved her for a long time.我认识他很久了。I have known him for a long time. 1）你整个早晨在学习什么？What have you been studying all the morning?2）你已经参加过期末考试了吗？Have you taken your final examination?3）学生们一直在为高考准备功课。The students have been preparing their lessons for the college entrance examination.4）我们从小就认识。We have known each other since childhood. 5）1949年以来，王先生一直在这所学校教物理。Mr. Wang has been teaching physics in this school since 1949.6）雨一直下了一个星期。It has been raining for a week.