二零二三年 优质公开课新目标八下Unit6SectionA.ppt

Howlonghaveyoubeencollectingshells?Unit6Period1WhendidYaoMingstartplayingbasketball?HowlonghasYaoMingbeenplayingbasketball?YaoMing’ssportslife1980wasborn1989startedplayingbasketballhasbeenplaying20yearsYaostartedplayingbasketballin1989.Hehasbeenplayingbasketballsince1989.Hehasbeenplayingbasketballfor20years.2009plays成龙(JackieChan)1954:beborn1961~now:actHehasbeenactingfor48years.HowlonghasJackieChanbeenacting?Hehasbeenactingsince1961.DengYaping1973:beborn1978~1997:playtabletennisWhendidDengYapingstartplayingtabletennis?HowlongdidDengYapingplaytabletennis?197819972009startedplayingtabletennisstoppedplayingDengYapingplayedtabletennisfor19years.playedtabletennis1.现在完成进行时:表示从过去开始一直持续到现在的动作,这个动作可能刚结束,也可能还要继续下去,常与fortwohours,since1998,allthismorning等表示一段时间的状语连用。Explanation现在完成进行时的构成:have/hasbeen＋(现在分词)doing,否定形式为:have/hasnotbeendoing,一般疑问句构成:Have/Hassb.beendoingsth.?特殊疑问句形式(询问时间持续长短):Howlonghave/hassb.beendoingsth.?当我们谈论动作从过去某一时间开始一直延续到现在,并且有可能持续下去时，我们常常用现在完成进行时来表示:for+一段时间have/hasbeen+doingsthsince+过去的时间点since+从句(一般过去时)现在完成进行时eg.Howlonghaveyoubeenswimming?Ihavebeenswimmingfor3years.Howlonghasshebeenskating?Shehasbeenskatingsincenineo’clock.注意:for后跟时间段,表示一段时间,多与带数词的名词连用,谓语需用延续性动词。Hehasbeenlivinginthestreetforabout20years.since“自从过去某一时间点以来”,后接时间点,强调动作或状态一直延续到现在,since后可接表时间的名词或名词短语,也可接一个时间状语从句。I’vebeenstudyingEnglishsinceIwas4yearsold例1我整个早晨都在打扫房间Ihavebeencleaningtheroomallthismorning.2).自从四岁开始我一直在学习英语I’vebeenstudyingEnglishsinceIwas4yearsold.3).他在这条大街上已经住了20年了Hehasb