陕西省安康市石泉县池河镇八级英语下册 Unit 10 I’ve had this bike for three years（第4课时）Section A（Grammar focus4c）教案 （新版）人教新目标版.doc

unit 10课题unit 10 section a (grammar focus -4c)授课类型语法课课标依据 理解附录“语法项目表”中所列语法项目并能在特定语境合作使用;了解常用语言形式的基本结构和常用表意功能;在实际运用中体会和领悟语言形式的表意功能。教学目标知识与技能1.总结本单元语法现象，然后一起学习语法部分2.掌握现在完成时的用法过程与方法正确区分现在完成时与一般过去时 正确运用for 和since的用法情感态度与价值观正确处理并充分利用自己的废旧物品。教学重点难点教学重点1)复习巩固section a 部分所学的生词和词组，达到熟练运用的目标。2) 熟练掌握和运用询问困难和提建议的表达方式。教学难点1) 总结询问问题和提出建议的句型，掌握规则。2) 练习运用所学的句型。教学媒体选择分析表知识点学习目标媒体类型教学 作用使用方式所得结论占用 时间媒体来源介绍知识目标图片ag拓展知识2分钟自制讲解过程与方法图片ae熟练运用句型5分钟自制媒体在教学中的作用分为：a.提供事实，建立经验；b.创设情境，引发动机；c.举例验证，建立概念；d.提供示范，正确操作；e.呈现过程，形成表象；f.演绎原理，启发思维；g.设难置疑，引起思辨；h.展示事例，开阔视野；i.欣赏审美，陶冶情操；j.归纳总结，复习巩固；k.其它。媒体的使用方式包括：a.设疑播放讲解；b.设疑播放讨论；c.讲解播放概括；d.讲解播放举例；e.播放提问讲解；f.播放讨论总结；g.边播放、边讲解；h.设疑_播放_概括.i讨论_交流_总结j.其他教学过程设计师生活动设计意图step 1 group work 出示下面的典型例句，让学生们先自己观察句子结构，对比现在完成时和一般过去时的不同。1. how long have you had that bike over there? 那边的那辆自行车你买了多长时间了？ ive had it for three years. 我买了三年了。2. how long has his son owned the train and railway set? 他的儿子拥有这套轨道火车多长时间了？ hes owned it since his fourth birthday. 自他四岁生日起，他就拥有了它。3. have you ever played football? 你曾经踢过足球吗？ yes, i did when i was little, but i havent played for a while now. 是的，当我很小时就踢过，但是现在我有好长一段时间没有踢了。step 2 精讲点拨 现在完成时表示从过去已经开始持续到现在的动作或状态，可以和表示“从过去某一时刻延续到现在的一段时间状语”连用，如“for + 时间段”、“since + 过去时间点”、“since + 过去时的从句”、“since + 一段时间 + ago”。且for与since引导的时间状语可以相互转换。e.g. my uncle has worked at this factory for ten years.= my uncle has worked at this factory since ten year ago. ivelivedheresince1990自从1990年以来我就住在这里。 ihaventseenhimforthreeyears.我三年没有看见他了。shesbeenatthisschoolsincefiveyearsago. 自从五年前以来她就在这个学校。歌诀：含有for，since的现在完成时的用法歌诀: 过去的动作或状态，一直持续到现在，for、since把时间带句中动词的特点此种用法中表示持续性的动作或状态的动词必须是延续性动词（否定句除外）1. 这本书我买了5年了。 i have bought the book for five years. ( ) ive had the book for five years. ( )2. 你哥哥参军多长时间了？ how long has your brother joined the army? ( ) how long has your brother been in the army/been a soldier? ( )非延续性动词和延续性动词之间的转换1. 转换为相应的延续性动词，用于现在完成时。 borrow keep buy have put on wear catch a cold have a cold get to know know get to sleep sleep2. 转化为“be + 形容词/副词/介词/名词” begin / start be on go out be out close be closed open be open get to/arrive/reach be (in) die be dead leave be away finish be over fall sleep be asleep join be in/be a member of become be make friends be friends come/go be + 相应的介词短语step 3 4a rewrite the sentences using for or since1. jim is in japan. he arrived there three years ago.jim has been in japan for three years.2. they are very hungry. their last meal was ten hours ago. they have been hungry for ten hours/since ten hours ago.3. i have a camera. i bought it in 2009. i have had a camera since 2009.4. i know ann. i first met her three years ago. i have known ann for three years/since three years ago.5. linda is ill. she became ill on monday. linda has been ill since monday.step 4 4b fill in the bla