九年级英语上册《Unit 4 Amazing Science》Topic2 SectionB 教案 仁爱版

用心 爱心 专心 1 九年级英语上册九年级英语上册 Unit Unit 4 4 AmazingAmazing Science Topic2Science Topic2 SectionBSectionB 教教 案案 仁爱版仁爱版 The main activities are 1a and 3a 本课重点活动是 1a 和 3a TeachingTeaching aimsaims andand demandsdemands 教学目标教学目标 1 Learn some new words clone experiment 2 Go on learning the simple past passive voice 1 Do you know when it was invented 2 It was invented in 1879 3 Learn some information about the clone technology 1 Cloning is famous throughout the world 2 There is DNA in most living things including human beings 3 No doubt cloning can help save those animals in danger 4 And it can also benefit human beings TeachingTeaching aidsaids 教具教具 录音机 多媒体课件 图片 Five fingerFive finger TeachingTeaching PlanPlan 五指教学方案五指教学方案 StepStep 1 1 ReviewReview 第一步第一步 复习复习 时间 6 分钟 做游戏 复习一般过去时被动语态的用法 导入新课 1 用上节课的作业做一个链式游戏 以小组为单位 就计算机 MP3 CD 手机 数码相 机或学习用具等进行对话 操练 be made of be made in be made from be used for 的用法 让每一小组的第一个同学回过头去问下一位同学 依次接着往下问 T Boys and girls Let s play a game Ask questions one by one S1 What s your favorite invention S2 An MP3 What s it made of S3 It s made of steel and plastic When was it developed S4 It was developed around 1998 What s it used for S5 It s used for helping us to improve our English 2 用多媒体出示图片 导入新课 T You did very well There are many important technologies and inventions in the world today Look at this invention 展示灯泡图片 It s a bulb Do you know about it 板书并要求学生了解 bulb Ss Yes a little T OK who invented it Ss Thomas Edison T When was the light bulb invented Do you know Ss No T OK let s come to 1a and learn about it StepStep 2 2 PresentationPresentation 第二步第二步 呈现呈现 时间 17 分钟 用心 爱心 专心 2 通过谈论各种发明及其发明者和发明的时间 呈现 1a 和 3a 的内容 继续学习一般过去时 的被动语态及生词 1 让学生听 1a 录音并根据听力内容判断正误 T In this lesson we will learn something about other inventions and technologies please listen to 1a and mark True T or False F 1 The light bulb was invented in 1879 2 The radio was invented by Thomas Edison in 1895 3 The airplane was invented by Wilbur and Orville Wright in 1903 听后核对答案 1 T 2 F 3 T 2 用图片继续谈论上述发明 引入 3a T Now let s go on talking about the inventions Look at the picture 出示收 音机的图片 Who invented it T It was invented by Guglielmo Marconi 呈现收音机的发明年份和发明者的名字 T And when was it invented Ss It was invented in 1895 T Very good And look at this picture 展示一幅飞机的图片 Who invented it 同时呈现飞机发明年份和发明者的名字 Ss It was invented by Wilbur and Orville Wright T And when was it invented Ss It was invented in 1903 T We have talked about so many inventions Now we are going to learn something new about a great technology 拿出图片 Now look at this picture What animal is it Ss It s a sheep T Yes it is a sheep and it is a cloned sheep Have you ever heard of clone 教师释义并领读 clone 要求学生掌握 clone Ss Yes of course T That s very good Cloning is a famous experiment throughout the world So far scientists have cloned many animals to save those animals in danger The cloning technology has been used in human organs It can benefit human beings 板书并让学生掌握生词 experiment 了解 benefit 和 organ experiment organ benefit T Then what s the name of the first cloned sheep Ss Dolly T Yes now let s read 3a and answer the following questions 3 指导学生阅读 3a 回答下列问题并核对答案 为完成 3b 作铺垫 同时画出文中的关 键词及短语 为下一环节的课文复述作准备 板书下列问题 1 When and where was the cloned sheep created 2 What other things has man cloned 用心 爱心 专心 3 3 What s used in cloning 4 What are advantages and disadvantages of cloning 板书关键词及短语 要求学生理解 AIDS Dolly be created famous throughout the world DNA in every part of your body be similar to save benefit human beings explore more ways to heart disease AIDS and cancer however 4 让学生听 3a 并跟读 画出重点词组 教师板书 T Please listen to 3a and read after it Find out the important phrases 板书 要求学生掌握 so far be similar to the same as no doubt 学生听完录音后 与教师板书的内容对照 并朗读 3a 课文 教师讲解本课重要词组 StepStep 3 3 ConsolidationConsolidation 第三步第三步 巩固巩固 时间 9 分钟 通过角色表演 复述等形式巩固 1a 和 3a 内容及一般过去时的被动语态 1 两人一组分角色表演 1a T Please act out 1a in roles 2 再读 1a 完成 1b 3 让学生再读 3a 并讨论 3b 中的问题 完成 3b 4 指导学生用刚才自己所画的 3a 中的关键词 以接龙的方式复述 3a T Just now we ve learned something about cloning Can you say something about it S1 Dolly a cloned sheep T Yeah It s well known S2 Cloning is known as a great experiment all over the world T Good S3 Dolly was created in Scotland more than ten years ago S4 So far scientists have cloned rabbits sheep cows mice pigs and some other animals T Excellent Now repeat what you have said just now one by one and you will get the whole paragraph 让刚才抢答问题的学生重复一遍自己所说的那些话 教师不再提示关键词 让学生按同样 的方式继续进行接龙 为激发学生的兴趣 可分组竞赛 看哪组复述的句子又快 又多 又准确 StepStep 4 4 PracticePractice 第四步第四步 练习练习 时间 8 分钟 设置情景 继续操练一般过去时的被动语态 完成 2 和 4 1 利用 1a 中有关发明的图片 让学生用一般过去时的被动语态讲述三项发明的情况 T Now look at the pictures and try to say something about the inventions we have learned just now 教师逐一呈现图片 S1 The light bulb was invented by Thomas Edison in 1879 S2 The radio was invented by Guglielmo Marconi in 1895 S3 The airplane was invented by Wilbur and Orville Wright in 1903 2 让学生先看 2 的内容 然后播放录音 T Boys and girls do you want to know something about other inventions 用心 爱心 专心 4 Let s listen to the tape carefully and complete 2 on Page 87 听后检查部分学生答案 视情况需要 可再播放一遍录音 然后就听力内容提问 T Who was the car invented by Ss Karl Benz T When was it invented Ss In T What about the telephone Ss It was invented by Alexander Graham Bell in T What did John Baird invent Ss He invented the television T When did he invent it Ss He invented it in 让学生分成三组分别讨论这三项发明 并用自己的话复述 2 中的部分内容 完成 2 T Now please talk about the inventions in your own words Group 1 please tell us something about the car G1 The car T Now Group 2 would you like to talk about the telephone or the television G2 We d like to talk about T Group 3 It s your turn to talk about 3 用多媒体展示一些图片 并要求学生用过去时的被动语态造句 巩固本课的语言点 完成 4 T Make up sentences according to the example and practice more Example 展示电脑图片并板书生词 laptop 要求学生了解 laptop S4 Where were laptops invented S5 They were invented in Japan S4 When were lap