《英语人教版八年级下册Grammar Focus -- 4c.ppt》由会员分享，可在线阅读，更多相关《英语人教版八年级下册Grammar Focus -- 4c.ppt（13页珍藏版）》请在taowenge.com淘文阁网|工程机械CAD图纸|机械工程制图|CAD装配图下载|SolidWorks_CaTia_CAD_UG_PROE_设计图分享下载上搜索。
1、 Gan Caiyan Gan Caiyan Unit 10 Ive had this bike for three years.Grammar focus-4c His son has owned the train and railway set since his since his fourth birthday.fourth birthday.His son has owned the train and railway set for ten yearsfor ten years-How longHow long has his son owned the train and ra
2、ilway set？.Warming Up2for for for for 其后只能接表示其后只能接表示“一段时间一段时间”的名词性短语，的名词性短语，表示动作或状态持续时间段长短。表示动作或状态持续时间段长短。e.g.e.g.I have lived in this city I have lived in this city forforforfor five years.five years.He usually sleeps He usually sleeps for for for for twelve hours every day.twelve hours every day.辨
3、析辨析for与与sincesince since 其后接表示“时间点”的短语或从句（过去时），可以表示为“一段时间一段时间+agolastagolast短语短语”常用于完成时态；还用于句型“It is It is+时间段时间段+sincesince+一般过去时的句子一般过去时的句子”表示过去某个时间发生并持续持续到说话时的动作或状态。e.g.e.g.She has worked hereShe has worked here for for for for five years.five years.=She has worked here since five years ago.=She
4、has worked here since five years ago.短暂性动词变延续性动词：晨起离家去购物 get up-be up go leave-be away buy-have出生入死搬回来 die-be dead move-be herethere return come back-be back东西一到开始用 comearrive-be herethere beginstart-be on用完未够方可借 end finish-be over borrow lend-keep 1.Becky _(has been,has become)a doctor for ten year
5、s.She likes her job bery much.2.We are late,.The movie _(has started,has been on)for ten minutes.3.I _(have bought,have had)this since I was ten,so I want to buy a new one.A:How long has Mary left?How long has Mary been away?BB:How long has he borrowed the book?How long has he kept the book?C:Maris
6、has come back since Monday?Maris has been back since Monday?They have not eaten for ten years.I have had a camera since 2009.I have known Anna for three years.Linda has been ill since Monday.have never beengohave never ownedhave always wanted have hadboughthavent beenmisshas been isGroup WorkSample
7、sentences:Sample sentences:A.A.Treature Island is Tonys favorite book.Treature Island is Tonys favorite book.He has had it for two years.He has had it for two years.B.B.Sam started to learn to play basketball when he was Sam started to learn to play basketball when he was ten.ten.Group WorkShow some things that you have owned,then introduce them to your partner -how long have you owned them?