共同进步.ppt

* * Unit 6 How long have you been collecting shells? Xu Yulian 1. How long did you sleep last night? 2. When did you start class today? 3. How long have you been in class today? I slept for … hours last night. We started class at … today. I have been in class for … hours today. Questions: I started teaching English in 1998. I am still teaching English now. I have been teaching English for over 12 years. since 1998. * He started teaching math when he was 20 years old. * He is 50 years old now and he is still teaching math. How long has he been teaching math? He has been teaching math 30 years ago. for 30 years. since he was 20 years old. I’ve been skating for five hours I skated for two hours I have been skating for five hours. 时态－现在完成进行时 have / has是助动词 been是be的过去分词 表示从过去开始一直持续到现在的动作， 并有可能持续下去． （一） 构成形式： have / has been + Ving 刘亦菲 1987: be born 2004~now: act He has been acting for 8 years. How long has Liu Yifei been acting? He has been acting since 2004 Yao Ming 1980: be born 1989 ~ 2011: play basketball He started playing basketball in 1989. He has been playing basketball since 1989. He has been playing basketball for 20 years. HanHong 1971: be born 1985 ~ now: singer How long has HanHong been a singer? HanHong has been a singer for 26 years. Zhang Yining 1982: be born 1997 ~ now: play table tennis How long did Zhang Yining play table tennis ? She played table tennis for 13 years. Li Yuchun 1984: be born 1987~ 2011: sing How long has she been singing? When did she start singing? She started singing in 1987. She has been singing for 22 years. since 1987. P . K What is / are …doing? How long has / have ...been…? Using since /for: 45 minutes half an hour 2 year 5 years 1 hour 2 hours 2 hours How long has she been reading ? She has been studying for 2 hours. She has been reading since2 hours ago. 2 hours half an hour How long has he been playing computer games? for half an h