Unit10 I've had this bike for three years现在完成时的用法教案

教师姓名 单位名称 填写时间
学科 英语 年级/册 八年级下册 教材版本 人教版
课题名称 Unit 10 I have had this bike for three years.
难点名称 现在完成时表示持续性动作用法
难点分析 从知识角度分析为什么难 区分第八单元学过的现在完成时用法 短暂性动词和延续性动词的转换 For 和since用法区别
从学生角度分析为什么难 学生难以区分短暂性动词和延续性动词 学生对时间段和时间点容易混淆
难点教学方法 通过图示法直观的呈现时间段和时间点 通过讲解和图示区分短暂性动词和延续性动词
教学环节 教学过程
导入 Teacher asks students:Have you ever been to ... Have you ever been to a yard sale Teacher shows a video about yard sale and invites students to yard sale hold by herself.
知识讲解 （难点突破） Teacher shows something on sale and a time line to ask: How long have I had it I bought the bike in 2014, now i still have it. So i have had it for 6 years. Students look and understand a long time and learn to use for. Teacher shows another picture and teach students how to use since. I have had this soccer ball for 2 years. We can also say i have had this soccer ball since 2018/2 years ago. In the third picture, teacher leads students to review first, then teaches them I have had this toy bear since I was little. Teacher gives the explanation of for and since.
课堂练习 （难点巩固） 用since或for填空 1. Amy has had her favorite bike_____ three years. 2. Lucy’s mother has been away_____ she was ten. 3. We have been here _____ last year. 4. Mark’s brother has been in the army _____ half a year ago.
小结 现在完成时表示持续性动作连用的时间状语有以下几种： 1.for +一段时间 e.g: for 8 years 2.since +过去的时间点 e.g: since 1999\ last spring 3.since + 一段时间+ ago e.g: since 23 years ago 4.since + 从句（一般过去时态） e.g:Since I came here four weeks ago.