3. Unit6 Unit6 How long have you been collecting Unit6 How long have you been collecting shells? shells? Period One Unit6 How long have you been collecting shells? Period One

4. shell collect shells 收集贝壳 marathon

5. skate a pair of skates She is skating. She is a skater.

6. When did Yao Ming start playing basketball? How long has Yao Ming been playing basketball? 姚明 1980:b e born 1989 ~now: basketball player He started playing basketball in 1989. He has been playing basketball since 1989. He has been playing basketball for 17 years.

7. Yao Ming’s sports life 1980 was born 1989 started playing basketball has been playing 17years He started playing basketball in 1989. He has been playing basketball since 1989. He has been playing basketball for 1 7 years. 2006 plays

8. Zhang Yining 1981: be born 1987 ~ now: play ping-pong How long has she been playing ping-pong ? She has been playing ping-pong for 19 years. She has been playing ping-pong since 1987. When did Zhang Yining start playing ping-pong? She started playing ping-pong in 1987.

9. 成龙（ Jackie Chan ） 1954:b e born 1961~now: act He has been acting for 45 years. How long has Jackie Chan been acting? He has been acting since 1961. When did Jackie start acting? He started acting in 1961.

10. Miss Li 1975: be born 2001~2006:teach Chinese How long has Miss Li been teaching Chinese? She has been teaching Chinese for 6 years. She has been teaching Chinese since 2001. She has been teaching Chinese since 6 years ago. When did Miss Li start teaching? She started teaching in 2001.

11. 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

12. (The Present Perfect Progressive Tense) 表示动作从过去某一时间开始，一直延续到现在，可能还要延续 下去。常和表示一段时间的状语连用。 They have been working for two hours. 他们已工作两小时了。 for 和表示一段时间的词组连用 They have been running since six o’clock. 从 6 点起他们一直在跑。 since 和表示过去某一时刻的词或词组连用 I have been waiting for you since I came here. 自到这儿以来我一直在等你。 since 后可跟句子，句子时态多用一般过去时

13. 用 for 和 since 填空 1.They have been learning Chinese _____ they came to China. 2. I haven’t seen her _____ a long time. 3. He has been living here _____ 2001. 4. She has been doing her homework ____ two hours. 5. It’s 5 years _____ we left school. 6. – How long has Mary been a teacher? – _____ two years ago. since for since for since Since

14. 2 hours How long has she been reading ? She has been reading for 2 hours. She has been reading since2 hours ago.

15. half an hour How long has he been playing computer games? He has been playing computer games for half an hour. He has been playing computer games since half an hour ago.

16. 15 minutes How long has he been drawing a picture/painting? He has been drawing a picture /painting for 15 minutes. since 15 minutes ago.

17. 45 minutes How long have they been playing soccer? They have been playing soccerfor 45 minutes. since 45 minutes ago.

18. an hour How long have they been swimming? They have been swimming for an hour. since an hour ago.

19. Pair work Linda/30 minutes Harry/45 minutes Lana/an hour Alice four hours Alan /three hours Sam two hours A: What is … doing now? B: She/He is … A: How long has she/he been … ? B: She/ he has been… for… since…

20. 1b Listen. A reporter is talking to the participants in a skating marathon. Fill in the chart below. How long? Alison Sam Victor Celia I’ve been skating for five hours. I skated for four hours. I’ve been skating for five hours. I skated for two hours.

21. 1c PAIRWORK Ask and answer questions about the people in the picture. A: How long has Alison been skating? B: She’s been skating for five hours. A: How long did Sam skate? B: He skated for four hours.

23. Marathon A contest to see who can do something the longest without stopping. (run ;dance ; swim or skate) running

24. skating marathon swimming marathon dancing marathon