八年级英语Howlonghaveyoubeencollectingshells.ppt

Unit 6,How long have you been collecting shells?,shell,collect shells,收集贝壳,New words,marathon,skate,a pair of skates,She is skating.,She is a skater.,I started teaching English in 2000.,I am still teaching English now.,How long have I been teaching English?,I have been teaching English,for 8 years.,since 2000.,since: (prep)自.以来,How long has she been skating?,1999-2008,She has been skating for nine years.,关颖珊,She is skating.,滑冰,2 hours,How long has she been reading ?,She has been reading for 2 hours.,since2 hours ago.,an hour,How long have they been swimming?,They have been swimming,for an hour.,since an hour ago.,15 minutes,How long has he been drawing a picture?,He has been drawing a picture for 15 minutes. since 15 minutes ago.,Yaoming is playing basketball.,2003-2008,Yaoming,has been playing basketball,for five years.,How long has Yaoming been playing basketball?,since five years ago,成龙（ Jackie Chan ） 1954:be born 1961now: act,He has been acting for 47 years.,How long has Jackie Chan been acting?,He has been acting since he was 7 years old.,He has been acting since 1961.,Miss Li 1975: be born 20012008:teach Chinese,How long has Miss Li been teaching Chinese?,She has been teaching Chinese for 7 years. She has been teaching Chinese since 2001.,She has been teaching Chinese since 7years ago.,Deng Yaping 1973: be born 1978 1997: play table tennis,How long did Deng Yaping play table tennis ?,She played table tennis for 19 years.,（二）,引导时间的介词for与since的区别,for,since,表示时间的持续,for + 时间段,表示“自从过去某一时间点以来”,since + 时间点,强调一段时间,强调动作或状态 一直延续到现在,( for与since引导的短语用how long提问 ),1b Listen. A report is talking to the participants in a skating marathon. Fill in the below.,Ive been skating for five hours.,I skated for two hours.,1c PAIRWORK Ask and answer questions about the people in the picture.,A: How long has Alison been skating? B: Shes been skating for five hours. A: How long did Sam skate? B: He skated for four hours.,Listening 2a & 2b,Questions,Answers,_ 1. How long did you skate today? _ 2. How long have you been skating today? _ 3. Was this your first skating marathon? _ 4. Do you skate every day? _ 5. When did you get your first pair of skates? _ 6. How long have you been skating?,No, I skated in a marathon last year. b. Yes, I do. c. For six hours. d. Since I was 7 years old.,现在完成进行时,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，我们常常用以下句型来表示: for +一段时间 have / has been + doing sth + since +过去的时间点 since + 从句 (一般过去时),have / has是助动词,been是be的过去分词,eg. How long have you been swimming? I have been swimming for 3 years. How long has she been skating? She has been skating since nine oclock.,Yao Mings sports life,1978,1997,2008,started playing table tennis,stoppedplaying,1989,2008,has been playing basketball,started playing basketball,Deng Yaping played table tennis for 19 years.,Yao Ming has been playing basketball for 19 years.,played table tennis,Grammar focus,How long have you been skating?,Ive been skating since nine oclock.,Ive been skating for five hours.,How long did you skate?,I skated for two hours.,用for和since填空,They have been learning Chinese _they came to China. 2. I havent seen her _ a long time. 3. He has been living here _ 2001. 4. She has been doing