Unit 6How long have you been collecting shells?Section A --period 1 1995started skating2011skates16 yearshas been skatingWangMeng started skating in 1995. She is still skating now.How long has she been skating?She has been skating for 16 years.WangMeng’s skating lifeskaterWangMeng 1999started skating2011skatesfor 12 years ZhouYang started skating in 1999. She is still skating now.How long has she been skating?She has been skating since 1999.ZhouYang’s skating lifeskater自从She has been skating for 12 years.ZhouYang My teaching life1993started teaching English2011teach EnglishI have been teaching English for I have been teaching English since 18 years 18 years.1993. 现在完成进行时概念 : 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。How long has she been skating?She has been skating for 16 years.How long have you been teaching?I have been teaching since 1993.for+ 一段时间since+ 过去时间点 have / has been + doing sth构成： 一、用 for 和 since 填空1. I have been teaching English _____ 18 years.2. We have been having class _____ 8:00 am.3. Alison has been skating ______ she was 7 years old. 4. I have been skating today ______ six hours.sincesinceforfor A: How long has YaoMing been playing basketball ?B: He has been playing basketball for 22 years. Jackie Chan1954: be born1961~2011: （ 50 ） actYao Ming1980: be born1989 ~ 2011: （ 22 ）play basketballtheyskate5 hourssince 1989. AlisonSkating Marathon 马拉松 How long?AlisonI’ve been skating for five hours.SamI skated for four hours.VictorI’ve been skating _______________.CeliaI skated _____________ .for five hoursfor two hours试比较：I’ve been skating for five hours 与 I skated for two hours有何区别？ A: How long has Alison been skating?B: She’s been skating ...
