Unit 3 Grammar教学详案--牛津译林版中学英语八年级下

Unit 3　Online tours Grammar 设计说明 首先通过一首英文歌《See you again》导入新课。通过在歌词中划出含有现在完成时的句子，引出现在完成时。通过一段文字让学生分辨出哪些是一般过去时的句子，哪些是现在完成时的句子，让学生对这两种时态有直观的认识。接下来，呈现一般过去时和现在完成时的用法和区别，并通过一些练习进行巩固，让学生对这两种时态有更深入的理解。通过大量情境练习，让学生巩固所学语法知识，提升语言运用能力。 教学目标 通过本课节的教学，让学生达成以下目标： 1.知识目标 掌握词汇：dream, passport, dream of/about 2.能力目标 (1)了解一般过去时和现在完成时的区别； (2)能组织含有一般过去时和现在完成时的句子。 3.情感目标 了解一般过去时和现在完成时的区别，培养学生热爱生活、感恩社会的情感。 重点难点 1.重点：了解一般过去时和现在完成时的区别。 2.难点：能组织含有一般过去时和现在完成时的句子。 教学准备 PPT 课件；《See you again》的音频。 授课时数 1课时 教学过程 Step 1　Lead-in Play an English song See you again and show the lyrics on the screen. Then underline the sentences about the present perfect tense. It’s been a long day without you my friend And I’ll tell you all about it when I see you again We’ve come a long way from where we began Oh I’ll tell you all about it when I see you again When I see you again … Answers: It’s been a long day without you my friend We’ve come a long way from where we began Step 2　Presentation 1. Pre-task Find out the sentences which use the simple past tense and present perfect tense in the passage. Millie had a dream last night. She dreamt of travelling to the USA. Millie has been to the USA once. She went there in 2017. She had a wonderful time there. Her uncle is in the USA. He has lived there for three years. Answers: Simple past tense: 1. Millie had a dream last night.　2. She dreamt of travelling to the USA.　3. She went there in 2017.　4. She had a wonderful time there. Present perfect tense: 1. Millie has been to the USA once.　2. He has lived there for three years. 2. Show the concept of the simple past tense and present perfect tense. (1)一般过去时表示在过去某个时间发生的动作或存在的状态，也表示过去经常或反复发生的动作。 He came here yesterday. 他昨天来这了。 (2) 现在完成时表示过去的动作（或者状态）对现在产生的影响或结果。 He has broken the glass. 他打碎了玻璃。 3. Show the differences between the simple past tense and present perfect tense. (1)构成不同 一般过去时：动词的过去式。 现在完成时：“助动词have/has +过去分词”。 ①Tom went to London last year. 汤姆去年去了伦敦。 ②Lily has been to London twice. 莉莉去过伦敦两次。 (2)用法不同 ①I had supper an hour ago. 我一小时前吃的晚饭。（表示过去的动作） ②I have just had supper. 我刚刚吃过晚饭。（强调对现在的影响———我不饿） ③He was a teacher then. 他那时是个教师。（表示过去的状态） ④He has been a teacher since then. 他从那时起就一直当教师。（他现在还是教师） (3)具体的时间状语 ①一般过去时的时间状语：yesterday, the other day, last week，...ago, in 1980，in October, just now等。 ②现在完成时的时间状语：for, since, so far, ever, never, just, (not)yet, recently, up to n ... ...