新目标八年级下册SectionA.pptx
Discussion1.How long did you sleep last night?2.When did you start class today?3.How long have you been in class today?第1页/共23页Look and sayHow long did she skate?She skated for three hours.I have been skating for five hours.How long have you been skating?第2页/共23页Listen.A reporter is talking to the participants in a skating marathon.Fill in the chart below.(1b)How long?AlisonSamVictor Celia Ive been skating for five hours.I skated for four hours.Ive been skating for five hours.I skated for two hours.第3页/共23页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.Ask and answer questions about the people in the picture.(1c)Pair work第4页/共23页 1.How long did you skate today?1.How long did you skate today?2.How long have you been skating 2.How long have you been skating today?today?3.Was this your first skating marathon?3.Was this your first skating marathon?4.Do you skate every day?4.Do you skate every day?5.When did you get your first pair of 5.When did you get your first pair of skates?skates?6.How long have you been skating?6.How long have you been skating?Listen to the interview with the skating marathon winner and check the questions you hear.(2a)第5页/共23页 Questions 1.How long did you skate today?3.Was this your first skating marathon?4.Do you skate every day?6.How long have you been skating?Answersa.No,I skated in a marathon last year.b.Yes,I do.c.For six hours.d.Since I was seven years old.Listen again.Draw lines to match the questions with answers.(2b)第6页/共23页定义：定义：表示过去某一时间开始一直延续表示过去某一时间开始一直延续到现在的动作。到现在的动作。时间标志时间标志: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+第7页/共23页Ive been studying English for six years.Ive been studying English since six years ago.Ive been studying English since I was ten.第8页/共23页否定句：否定句：在在have/has后后+not I havent been writing the letter for two hours.1.He hasnt been sleeping for 4 hours.一般疑问句：一般疑问句：Have/Has 提前，放句首。提前，放句首。1.Have you been writing the letter foe two hours?2.Has he been sleeping for 4 hours?第9页/共23页现在完成进行时与一般过去时的区别 这两种时态所表示的动作虽然都发生在过去,但是现在完成进行时强调的是动作的持续或进行,而一般过去时则只表示过去的动作或状态,和现在没有什么联系。例如：第10页/共23页He has been swimming since four oclock.他从四点起一直在游泳。(现在还在游)He swam at four oclock.四点钟他在游泳。(不涉及现在是否还在游)第11页/共23页How long has she been dancing?She has been dancingfor 3 hours.since 3 hours ago.3 hours第12页/共23页45 minutesHow long has she been learning?She has been learningfor 45 minutes.since 45 minutes ago.第13页/共23页What is/are doing?How long has/have.been?Using since/for:45 minutes 2 year 5 years第14页/共23页练习坊一、选择填空()1.Ive been skating _ three hours today.A.about B.forC.since()2.Weve been studying English _two years ago.A.for B.fromC.sinceBC第15页/共23页()3.She started skating _ 9 oclock.A.for B.at C.since()4.Sam _ collecting shells for five years.A.isB.started C.has been()5.How long have you _ today?A.swimming B.been swimming C.started swimmingBCB第16页/共23页二、用二、用 for或或since填空填空1.I have been practicing my oral English _ 10:30.2.Mary has been running _ 15 minutes.3.Sarah has been sleeping _ 9:00.4.Dale has been talking on the phone _ 5 minutes.sinceforsincefor第17页/共23页5.Louie has been studying Chinese _ he was 6 years old.6.I have been watching you _ 10 minutes.7.Lana has been running _ 15 minutes8.Tom has been sleeping _ 9:00.sinceforforsince第18页/共23页9.He has been living here _ 2001.10.She has been doing her homework _ two hours.11.I have been watching TV _10 minutes.12.How long has Mary been a teacher?_ two years ago.sinceSinceforfor第19页/共23页III.将下列汉语翻译成英语。将下列汉语翻译成英语。1.雨已经下了两个星期了。雨已经下了两个星期了。_2.你奶奶从年轻时就一直运动吗？你奶奶从年轻时就一直运动吗？是的，她一直运动。是的，她一直运动。_It has been raining for two weeks.Has your grandmother been doing sports since she was young?Yes,she has.第20页/共23页 Translate and write them down.1.他踢足球踢了多长时间了？他踢了五个小时了。2.你滑冰有多久了？我从七岁就开始滑冰了。-How long has he been playing football?-Hes been playing for five hours.-How long have you been skating?-Ive been skating since I was seven years old.第21页/共23页第22页/共23页谢谢您的观看！第23页/共23页
