人教版新目标初中英语八年级下册《Unit 6 How long have you been collecting shells 》精品课件.ppt

unit 6 how long have you been collecting shells?,jay started practicing the piano when he was three years old. he has been playing the piano for more than twenty years.,task 1 - brainstorm: talk to your partner about something you like doing and how long you did it yesterday/last month/last weekend, etc. model: a: what do you like doing? b: i like playing soccer. a: how long did you play soccer last weekend? b: i played it for two hours.,i started teaching i have been teaching now for about 10 years - - in 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 1996,sb. has been doing something since sb. has been doing something for ,(a date or a clock time),(a certain number of minutes or hours),e.g. he has been riding to work for 7 years. we have been learning in this class for about 10 minutes.,e.g. he has been riding to work since 1999. we have been learning in this class since 10:55.,listening practice: a reporter is talking to the participants in a skating marathon. fill in the chart below.,skate v. 滑冰 marathon n. 马拉松,ive been skating for five hours.,i skated for two hours.,task 2 - memory challenge.,ding junhui played snooker since 8 years old for 12 years,wang meng skated since 10 years old for 11 years,guo degang performed cross talks (相声) since 13 years old for 20 years,li yong wrote in his own blog(博客) since last tuesday for only a week,listening practice: listen to the interview with the skating marathon winner and check() the questions you hear.,questions 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?,listen again. draw lines to match the questions with answers in activity 2a.,questions 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?,answers a. no, i skated in a marathon last year. b. yes, i do. c. for six hours. d. since i was seven years old.,pairwork- student a is the reporter. student b is alison. role play the interview.,a: how long have you been skating? b: ive been skating since i was seven years old ,groupwork: make a survey on students hobbies.,you may use the following sentence patterns to make your survey: whats your hobby? i like how long have you been doing that? i have been he/she has been ,since (时间点),for (时间段),since (时间点),for (时间段),summary: the differences between “since” and “for” for (prep.) 表示时间的持续，后面加时间段，表示一段时间，多与带数词的名词连用，其谓语需用延续性动词。 since (prep.) 表示“自从过去某一时间点以来”，后面接时间点，强调动作或状态一直延续到现在，一般用现在完成时或现在完成进行时。,.,exercises: fill in the blanks with for or since. the skating marathon has been going _ five hours. i have been skating _ 9 oclock. she has been listening to pop music _ she was nine years old. we have been leaning english _ two years. i have been collecting stamps _ ten years. he has been watching english movies _ 2002.,for,since,since,for,for,since,homework: 1. what do you collect in your spare time?