九年级英语上册Unit6Whenwasitinve教案新版人教新目标版 4页

Unit 6　When was it invented?‎ Section A (1a－2d) ‎ ‎1．重点单词：heel，scoop，electricity，style，project，pleasure，zipper，daily，website，pioneer，list，mention ‎2．重点短语：be used for，think of，have a point ‎3．重点句式：—When was the telephone invented?‎ ‎—I think it was invented in 1876.‎ What are they used for?‎ Can you help me think of an invention?‎ Is it really such a great invention?‎ Think about how often it's used in our daily lives.‎ The pioneers of different inventions were listed there.‎ At that time，it wasn't used widely.‎ ‎1．重点短语和句型 ‎2．一般过去时态的被动语态 一般过去时态的被动语态 一、预习课本P41－42新单词并背诵，完成下面的汉译英。‎ ‎1．鞋跟________　　　　2.铲子________‎ ‎3．电能________ 4.样式________‎ ‎5．项目________ 6.高兴________‎ ‎7．拉链________ 8.日常的________‎ ‎9．网站________ 10.先锋________‎ ‎11．名单________ 12.提到________‎ 二、认真预习1a－2d找出下列短语和句型。‎ ‎1．被用来……________________________________________________________________________‎ ‎2．考虑________________________________________________________________________‎ ‎3．有道理________________________________________________________________________‎ ‎4．—电话是什么时候发明的？‎ ‎—我认为它是1876年发明的。‎ ‎________________________________________________________________________‎ ‎________________________________________________________________________‎ ‎5．它们是用来干什么的呢？________________________________________________________________________‎ ‎6．你能帮我考虑一种发明吗？‎ 4‎ ‎________________________________________________________________________‎ ‎7．它真的是如此伟大的一项发明吗？‎ ‎________________________________________________________________________‎ ‎8．考虑一下它在我们的日常生活中使用的多么频繁。‎ ‎________________________________________________________________________‎ ‎9．不同发明的先锋都被列了出来。‎ ‎________________________________________________________________________‎ ‎10．在那时，它还没有被广泛地应用。‎ ‎________________________________________________________________________‎ Step 1　情景导入 Teacher：We have inventions everywhere.Inventions make us live easily and happily.Without inventions，our lives will be much more difficult.Today，we will know about a few inventions and talk about the history of them.(Show the pictures of four inventions on the screen：a car，a TV set，a telephone，and a computer.)‎ When was the telephone invented？It was invented in 1876.Please pay attention to“was”．Now please practice the conversations like this according to the information on the screen.‎ 环节说明：根据教师提供的发明及其被发明的时间为素材，采用对话练习的方式引入新课。通过问答操练，加深学生对对话内容的理解，使学生很快的投入到学习中去。‎ Step 2　完成教材1a－1c的任务 ‎1．1a中的四种发明，你认为哪个是最早发明的，依次标出序号，小组内可交流。(3分钟)‎ ‎2．认真听录音，将1b中的物品和它们发明的年代匹配。(4分钟)‎ ‎3．再听一遍录音，并跟读对话。(4分钟)‎ ‎4．两人一组互相利用1b中的物品和发明年代，仿照1c的对话形式编练新的对话，完成后邀请几组学生展示。(5分钟)。‎ 参考案例 A：When was the telephone invented?‎ B：I think it was invented in 1876.‎ ‎5．小结训练。(3分钟)‎ ‎(B)1.—The book ________ to you by Jim，so you can ask him.‎ ‎—Thank you.I will ask him.‎ A．gave　　　　　　　　B．was given C．was giving D．had given ‎(D)2.—________invented the telephone?‎ ‎—Sorry，I don't know.Let's ask the teacher.‎ A．What　　B．When　　C．Where　　D．Who ‎(D)3.These kinds of shoes ________ well.‎ A．were not sold B．won't be sold C．are not sold D．don't sell ‎(B)4.—When ________ the telephone ________？‎ ‎—In 1876.‎ A．did；invent B．was；invented 4‎ C．were；invented D．do；invented 环节说明：听说结合，第一时间向学生传达语言目标，通过结对对话练习和小结训练，使语言目标得以强化。‎ Step 3　完成教材2a－2c的任务 ‎ ‎ 1.认真观察2a中的图片，然后听录音，根据听到的顺序为图片标号，集体核对答案。(3分钟)‎ ‎2．再认真听一遍录音，完成2b中的表格，完成后集体核对答案。(3分钟)‎ ‎3．听第三遍录音，学生跟读。(3分钟)‎ ‎4．两人一组利用2b中的信息，仿照2c的形式两人一组编练新的对话，邀请几组学生表演对话。(5分钟)‎ ‎5．小结训练。(3分钟)‎ ‎(C)1.The knife ________ things.‎ A．used for cutting B．is used for cut C．is used to cut D．use to cut ‎(C)2.The thing ________ by Jim under the bed is a teapot.‎ A．invented B．discovered C．found D．found out ‎(A)3.The teachers ________ how to use computer in our class yesterday.‎ A．were taught B．taught C．was taught D．teach 环节说明：通过听、说、读、写学习训练让学生掌握了一般过去时态的被动语态；同时学生的口语表达能力在这一环节得到提升。‎ Step 4　完成教材2d的任务 ‎1．学生自读对话，完成下面的问题。(5分钟)‎ ‎1)判断正误 T或F；2)根据对话内容填空；3)回答问题。‎ ‎1)Is the subject for Paul's school project “inventions that changed the world.”？(F)‎ ‎2)Roy advise Paul to talk about the_zipper．‎ ‎3)When was the zipper invented？And who invented it?‎ The_zipper_was_invented_by_Whitcomb_Judson_in_1893.‎ ‎2．大声朗读2d中的对话，读熟后与同伴结对练习，分角色表演对话。(3分钟)‎ ‎3．邀请三组学生来表演对话。(3分钟)‎ ‎4．小结训练。(3分钟)‎ 连词成句 ‎1．it，invention，is，great，really，a，such Is_it_really_such_a_great_invention?‎ ‎2．did，popular，when，become，it When_did_it_become_popular?‎ ‎3．think，lives，about，daily，how，our，often，in，it，used，is Think_about_how_often_it's_used_in_our_daily_lives．‎ ‎4．can，invention，you，an，help，of，think，me Can_you_help_me_think_of_an_invention?‎ 环节说明：将对话问题化，既能锻炼学生的思维能力又能加深对课文的理解。小结训练又对对话中的重要句型进行了巩固加深。‎ 4‎ Step 5　问题探究 ‎ ‎1．一般过去时态的被动语态 我们的教学楼是去年建成的。(汉译英)‎ Our_class_building_was_built_last_year.‎ ‎①一般过去时的被动语态的结构为： 主语(动作接受者)＋was/were＋动词的过去分词＋(by＋动作执行者)；‎ ‎②否定句：主语＋wasn't/weren't＋动词的过去分词＋(by＋动作执行者)；‎ ‎③一般疑问句：Was/Were＋主语＋动词的过去分词＋(by＋动作执行者)?‎ ‎④特殊疑问句：特殊疑问词＋be＋主语＋动词的过去分词＋(by＋动作执行者)?‎ ‎(　)2.Pens are used ________ writing.‎ A．in　　　B．to　　　C．for　　　D．at 答案选择C，be used for doing sth.＝ be used to do sth.被用来做某事(是被动语态)。 ‎ 请学生们做前面课时训练部分。‎ 4‎