1. Unit 6 How long have you been collecting shell? SectionA

2. Learning aims ： 1.Talk about how long you have been doing things. ( 学会谈论自己做某事持续的时间.) 2.Use “have/ has been doing” to talk about hobbies ( 爱好 ). 3. 学会 “since” 和 “for” 的用法. 4.Develop a healthy hobby.

3. 现在完成进行时 表示动作从过去某一时间开始一直延续到现在或离 现在不远的时间。其动作是否继续下去，由上下文而定。 这个时态多用于延续性动词。 构成： have / has been + V.ing +…… 时间状语 : 1. for + 一段时间 2. since + 过去的时间点 3. since + 一般过去时的句子

4. 现在完成进行时： have/has been doing I have been skating since nine o’clock. She has been skating for five hours. 一般疑问句 : Have you been collecting stamps since 1993? Has he been waiting for you for 30 minutes ?

5. 现在完成进行是的结构： 肯定句：主语 +have / has been +doing （现在分词） … 1.I have been writing the letter for two hours. 2.He has been sleeping for 4 hours. 否定句：主语 +have / has+not +doing （现在分词） … 1.I haven’t been writing the letter for two hours. 2.He hasn’t been sleeping for 4 hours. 一般疑问句： Have / Has + 主语 +been +doing ( 现在分 词） …? 1.Have you been writing the letter foe two hours? 2. Has he been sleeping for 4 hours?

6. ( )1. I’ve been skating __ three hours today. A. about B. for C. since ( )2. We’ve been studying English __ two years ago. A. for B. fromC. since ( )3. She started skating __ 9 o’clock. A. for B. at C. since ( )4. Sam __ collecting shells for five years. A. isB. started C. has been

7. How long have you been collecting stamps? I have been collecting stamps for ten years. I have been collecting stamps since I was twelve years old. Ask and answer

8. How long have you been collecting shells? I have been collecting shells for eight years. I have been collecting shells since I was a child.

9. How long have you been watching TV? I have been watching TV for two hours. I have been watching TV since seven o ’ clock.

10. How long have you been …ing … ？

11. Exercises ： 时态填空 : 1.How long _____you___________ (collect) stamps? For half a year. 2.How long ____he _________(skate)? Since I _______(be) ten years old. 3.When ____he ____(start) learning to dance? In 2002. 4.We______________(run) on the playground since 6 o’clock a.m. havebeen collecting hasbeen skating was didstart have been running

12. 翻译句子： 1.__________( 多长时间 )have you been collecting stamps? Since I was ten years old. 2.___________( 多久 )do you play tennis? Twice a week. 3.He has been collecting old coins___________________. ( 达三年 ) 4.________( 什么时候 )did you start to skate? Two years ago. 5.Bob 从八岁就开始收集邮票了. _________________________________________. 6. 这是你第一次进行滑冰马拉松比赛吗 ? _______________________________________________. How long How often for three years When Bob has been collecting stamps since he was eight years old.7 Was this your first skating marathon?

13. Please say out how long you and your family have been doing something. WhoHow long my motherShe has been teaching English for15 years. …… Homework: