unit6howlonghaveyoubeencollectingshells

《unit6howlonghaveyoubeencollectingshells》由会员分享，可在线阅读，更多相关《unit6howlonghaveyoubeencollectingshells（15页珍藏版）》请在装配图网上搜索。

1、Unit 6How long have you been collecting shells?2000now(2011)started to teach Englishhave been teaching English11years Yao Mings sports life1980was born1989started playing basketballhas been playing16 years2006 playsHe started playing basketball in 1989.He has been playing basketball for 16 years.Mic

2、hael Jackson 1958:be born1963 2009:singerHow long has Michael Jackson been a singer?Michael Jackson has been a singer for 45 years.QuestionsAnswers DifferenceHow long did you do?I did forstopHow long have you been doing?I have been doing for since nine oclock since 1995.since ten year ago.since I wa

3、s years old.continueGrammar定义：定义：表示某动作从过去开始，一直延表示某动作从过去开始，一直延续到现在经历了多长时间续到现在经历了多长时间,常有可能持续常有可能持续下去下去,常和表示一段时间的状语连用。常和表示一段时间的状语连用。此时态包含现在进行时的含义，也包含此时态包含现在进行时的含义，也包含现在完成时的含义。现在完成时的含义。时间状语时间状语:1.for+一段时间一段时间 2.since+过去的时间点过去的时间点 3.since+一般过去时的句子一般过去时的句子构成：构成：have/has been+V-ing+Ive been studying Englis

4、h for two years.Ive been studying English since two years ago.He has been collecting shells since he was ten.He has been swimming since four oclock.他从四点起一直在游泳。他从四点起一直在游泳。(现在还在游现在还在游)He swam at four oclock.四点钟他在游泳。四点钟他在游泳。(不涉及现在是否还在不涉及现在是否还在游游)How long has she been dancing?She has been dancingfor 3 h

5、ours.since 3 hours ago.3 hours45 minutesHow long has she been learning?She has been learningfor 45 minutes.since 45 minutes ago.What is/are doing?How long has/have.been?Using since/for:45 minutes half an hour 2 year 5 years 1 hour 2 hoursforsince表示时间的持续表示时间的持续for+for+时间段时间段表示表示“自从自从以来以来”since+since+

6、时间点时间点 How long have you been learning English?I have been learning English for 2 years.I have been learning English since 2 years ago.I have been learning English since I was 13 years old.Fill in the blank with for or since1.Lana has been running _ 15 minutes2.Tom has been sleeping _ 9:00.3.He has

7、been living here _ 2001.4.She has been doing her homework _ two hours.5.I have been watching TV _10 minutes.6.How long has Mary been a teacher?_ two years ago.forsincesinceSinceforfor1.李明在都江堰住了李明在都江堰住了5年。年。1.李明曾经在都江堰住过李明曾经在都江堰住过5年。年。2.我们学英语两年了。我们学英语两年了。2.我们曾经学过两年英语。我们曾经学过两年英语。3.Tom滑冰滑了滑冰滑了3个钟头了。个钟头了。3.Tom滑冰滑过滑冰滑过3个钟头。个钟头。Li Ming has been living in Du Jiangyan for 5 years.Li Ming lived in Du Jiangyan for 5 years.We have been learning English for 2 years.We learned English for 2 years.Tom has been skating for 3 hours.Tom skated for 3 hours.Now,its time for us to relax!