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1、Unit 6 When was it invented?Section A 1教学设计学校：久庆初级中学校教师：温雪誉内容分析本课是人教版九年级第六单元的教学内容。这是本单元的第一课时，是一节听说课，以“When was it invented?”为话题。Section A介绍了我们生活中的一些常见物品的发展史，介绍它们被发 明的时间，被什么人发明及其作用或发展等。从语言结构上学习一般过去时的被动语态。lalc是 整个Section A的基础。本部分输入了本单元的重要语言结构When was the telephone invented?It was invented in .。学情分析学生在
2、上一单元对被动语态的一般现在时形式已经有了初步的认识，这为学习本单元内容打 下了良好的基础。初三的学生求知欲望强，对于历史上的发明又有一定的了解，对本单元的话题 比较熟悉，便于话题的展开。一、教学目标：1 .语言知识目标：1）能掌握以下单词：invent invention inventor 能掌握以下句型： 一When was the telephone invented?1 think it was invented in 1876.2）能谈论物品被发明的时间、发明者，表达某发明的用途。2 .情感态度价值观目标：了解一些近现代发明的时间及用途，激发自己热爱发明的情感。培养想象力，善于观察事
3、 物。面对难题，用积极的态度去解决，发挥想象力，认识世界，改造世界。二、教学重难点.教学重点：1）本课时的单词、词组和句型，学习运用一般过去时态的被动语态。2）学会询问发明时间及用途的基本句型：When was the telephone invented?一I think it was invented in 1876.1 .教学难点：运用一般过去时态的被动语态来讨论发明的发明时间。三、教学过程Warming up1 .展示中国四大发明的图片引出本节课的语言目标。T: Do you know what these inventions are?51: Ifs a compass.52: If
4、s paper making.53: Ifs gun powder.S4:Ifs printing.2.展示近代发明的发明者，让学生们将图片与发明者相连。T: Do you know what these inventions are?51: Ifs a car.52: Ifs a telephone.53: Ifs a television.T: Do you know who these inventors are?51: Karl Benz52: Alexander Bell53: J. L. BairdLet Ss match the inventions and the invent
5、ors.II. Presentation引导学生们学习一般过去时态的被动语态结构。让学生们看大屏幕发明者和发明者的图片,并将句子改为被动语态。如：T: Karl Benz invented the first car in 1885.The first car was invented (by Karl Benz) in 1885.HL TalkingLook at the pictures in la. Discuss with your group, in what order do you think they were invented? Try to number them 1-4.
6、1. Ss discuss with their partners and number the pictures.2. lalking about the inventions:A: I think the TV was invented before the car.B: I agree ./I dont think so ./ the TV was invented after the TV.IV. Listening (lb)T: Tell Ss look at the pictures and years on the left.1. Play the recording for t
7、he Ss to listen.2. Ss listen to the conversation and try to match the invention with the proper year.3. Play the recording again.4. Check the answers, d ,a,c,b.V. Pair work (1c)Ss try to remember the invention and the year.1. Student B, cover the dates. Student A, ask Student B when the things in th
8、e picture in lb were invented. Then change roles and practice again.3 Let some pairs ask and answer in pairs., A: When was the telephone invented?B: I think it was invented in 1876.VI .Talk about the inventions.Which one do you think is the most helpful in our daily life?Why?Eg：think computer is the
9、 most helpful invention .Because it helps me get the information that I need.2.1 think compass is the most helpful invention .Because it can help me find directions.Homework说说你认为最有用的发明,介绍发明者,何时发明的,有何用途等写一段话。可用下面的提示:What9s the most useful invention?Who was invented it ?When was it invented ?What is i
10、t used for?教学反思本节课首先通过多媒体展示中国四大发明的图片引出本课的语言目标和词汇,让学生在情景 中理解本课的新词汇,同时提供听说训练。通过要求学生谈论发明的先后顺序引出一般过去时的 被动语态结构。然后通过听说活动让学生不断感知目标语言,逐渐学会使用一般过去时的被动语 态结构谈论发明。一般过去时的被动语态对学生表达来说有一定的难度,但是学生对发明话题都 较感兴趣,所以本课一开始从学生熟悉的话题导入,调动了学生的学习热情。本节课的不足之处在于,内容多,节奏快。口头练习不够充分,因时间有限,角色扮演准备 不足,进行不很流畅,有部分同学没有得到锻炼的机会。有些学生在使用被动句式时不够流畅, 准确性欠缺。