英语教学课件-U6period1.pptVIP

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* Unit 6 Period 1 How long have you been collecting shells Deng Yaping Be born 1973 Started to play 1978 Finished playing 1997 How long did she play ping-pong ? She played ping-pong for 19 years. Zhang Yining Be born 1982 Started to play 1987 How long has she been playing ping-pong ? She has been playing ping-pong since 1987. She has been playing ping-pong for 21 years. Interviewing Liu xiang Be born 1983 Started to run 1995 The best score 12.91 seconds 现在完成进行时表示过去某一时间开始一直延续到现在, 并且有可能持续下去的动作,也用于表示经常反复的动作。 我们常常用以下句型来表示: for +一段时间 have / has 助动词 been + doing since +过去的时间点 since + 从句 一般过去时 现在完成进行时 15 minutes How long have they been waiting for the bus ? They have been waiting for the bus for 15 minutes. They have been waiting for the bus since 15 minutes ago. 8:00 How long has he been riding a bike ? He has been riding a bike since 8 :00. 2 hours 10 minutes ago 11:oo an hour half an hour Work in pairs What is she doing ? She is... . How long has she been …ing …. ? She has been …ing … for /since … . *

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