Unit6 SectionB（1a-1e）教案
【教材版本与册数】新目标人教版九年级上册 【单元名称】Unit 6 When was it invented?
【课时】Section B 1a-1e（第4课时） 【课型】Reading and speaking（听说课） 教材分析 【本单元话题】 讲述各种发明的历史。 【本单元重点掌握目标】 一般过去时的被动语态。 【教材内容拆分分析】 1a-1e是一个完整的听说任务链。1a-1b要求学生观看几种常见食物图片并能用描述性形容词对其口感做出评价，还需要根据形容词写出相应食物，名称。 1c-1d根据听力所输入的信息进行多层次的处理，其内容是关于薯条发明的小故事，要求学生先听句子判断正误，然后根据对话内容改写语篇的填空。 【通过本单元的学习学生需掌握哪些综合技能】 通过本单元的学习使学生学会谈论各种发明的历史，熟练使用被动语态。 语言知识目标： 1.熟练使用以下词汇、短语和句型： 单词：crispy, salty, sour, custermer 短语： by mistake in the end 句型： Potato chips were invented by mistake. 教学目 George wanted to make the customers happy. 标 2.听说能力的训练，小组合作培养 情感态度价值观目标： 通过教师的引导，学生在学习中的讨论、总结，了解英语学习的方法。 教学重难点 教学重点： 1.掌握所有重点单词，短语和句型。 2.熟练运用一般过去时的被动语态。 教学难点： 熟练云用一般过去时的被动语态。 建议教法 情景交际法，任务型教学法，听说课的“3P”教学模式 ： P--呈现（语言输入） P--操练（1.机械操练2. 听力训练） P--运用（语言输出） 设置情景意义操练 设计听后活动任务，先模仿再迁移 总结，听后设置任务提升学生语言运用能力 教学流（详见相应教学活动设计） 程 教学评价 1.本课时的目标设计清晰可操作，活动的设计紧扣目标要求并与目标达成一致。 2.听中的活动设计遵循语言规律，由易到难逐层递进，充分体现语言输入到语言输出的完整过程。 3.听后的活动设计体现对文本内容的深度挖掘和文本再构，体现了对学生思维品格的训练与培养。
附：教学活动设计
步骤 DELC4 1 预备与激活先期知识 过程 Step 1 Greeting and Leading in ( 3mins ) 措施（教师活动与学生活动） 1. Greet the class. 目的 持续性评价 通过课前的预习，培养学生的“IIQEE”学习策略
利用IQEE策略利用旧的词汇来与本2. T: What kind of food do you like ? Sweet, sour, 堂课的话题词汇建立起记忆连接。简单有效的激活学生与此话题相关的bitter…? 背景知识激活学生的前期知识，培养Ss: I like …. 学生良好的预习习惯。 3: Look at these pictures, how will they taste?（归 纳）
DELC5 2 获取新知识 Step2 Pre- Listening （听前(5 mins) Step 3 While- listening （听中） (17mins) 1.T：Look at 1a and 1b . 1 ) Ss work with their partners and try to write some proper words under the pictures. 2) Let some Ss read their answers. Try to remember the new words. 2.T： Do you like eating potato chips? I am sure most of us like them very much. But do you know who invented them and how they were invented？Today let's learn together to know more about the history of the potato chips. 1. First, let one Ss read the sentences in 1c. Make sure they know the meaning of each sentence. 2. Play the recording for the Ss. Listen for the first time. Play the recording again and judge T or F. Answers:TFTFFT 3. Listen and answer the questions. 1). Who invented potato chips? 2). When were they invented? 通过合作学习完成1a ,1b.然后以学学生能否通过小组活动完成目标生们喜爱的薯条的发明为导入，引词汇。 起学生的学习兴趣，为听力做好铺 垫。 学生能否通过听通过听力训练，三步练习，让学力抓住文章关键 生熟悉目标语言，起到语言输入信息，获取目标语言。 的作用。 4). What did the custom think of the potato chips George cooked at first? 5). How did George cook the potatoes then? 3). What did the custom order at the restaurant? Answers:1)George Crum. 2)In 1853. 3)A plate of fried potatoes. 4)He thought they were cut too thick. 5)He cut the potatoes really, really thin and cooked them for a long time until they were crispy. And he put lots of salt on them so they were really salty. 4. Let Ss read the article in 1d first. Tell Ss to listen again and fill in the blanks with the right words. 5. Play the recording again for the Ss to listen and write the words. Answers: were invented, 1853,thin ,crispy, really salty
Step 4 Post- Listening（听后） (10mins) invented. 1. Work in pairs. Make a conversation about the invention of potato chips. Use the information in 通过对话形式再现听力，训练学生的学生能否用自己的语1c and 1d. 口语能力，通过复述文章再现听力，言讲述薯片的发明史。 2. Ask some pairs to act out their conversation in 训练学生的总结归纳语言的能力。 T: Now you have learned how potato chips were front of the class.
DELC6 3 深度加工知识 3. Ask some students to retell the invention of potato chips ,using their own words. Explain some key points. by mistake 错误地 eg: He took my umbrella by mistake. 他错拿了我的伞。 in the end 最后，最终，同义词组at last / finally eg: They won in the end/at last/finally. at the end of 在…的末尾 by the end of 到…末为止 DELC7 4 评价学生学习 Step 5 Summary （5 mins） 1. Let the Ss summarize what we have leaned in this class. 通过学生的自我归纳总结，再次对本堂课目标语言进行操练。 学生能否记住本堂课所学知识点。 3.Exercise 1).John took my umbrella________ mistake. A．to B．by C．about D．on 2).Though my grandfather is old，he is funny enough to make ________. A．us to laugh B．our laugh C．us laugh D．ours laugh 3).This book is written by a man________ Jack. A．call B．calls C．called D．calling 4).He puts too much salt into the noodles，so they are very ______. A．sweet B．crispy C．salty D．sour 根据首字母提示补全单词 1. The potatoes are c____ 2. Please add some s____ to the noodles. 3. Potato chips were invented by m . 4. C______ comes first. 5. The lemon is very s______. 4．Homework Tell the invention of potato chips to your parents , and write it down .