Unit6Whenwasitinvented学案1

1、Unit 6 When was it invented?Section B 1a-1e【教材内容分析】本节课是6单元Section B的一堂听说课，主要介绍了现代生活中的一项美食发明一一薯片。la-le是一个完整的任务链，la-lb要求学生观看几种常见的食物图片并能用形容词 描述它们的口感.然后根据形容词列举相应食物。lcld是对听力所输入的信息进行多层次 的处理。听的活动要求学生能运用反义词、涪息综合判断等，训练学生捕捉信息、处理涪息 的能力。最后进行的活动要求学生根据听力信息，模仿谈论薯片的发明，内化听力信息.【学悄分析】学生在5单元已经学了一般现在时的被动语态，而且6单元Section

2、A也学习了 4堂课关于过去时的被动语态，学生对于过去式被动语态的构成有了一定的掌握，大部分学生能够 用被动语态进行表达，为本节课的听说活动提供了基础。同时美食的发明故事又是贴近学生 生活的话题，能够激发学生的学习兴趣。【教学U标】1.学生掌握并能运用表味道的词:sour, salty, crispy, sweetf 了解 spicy* bitter）和新单词 customer2.通过听薯片发明的故事，训练学生听中捕捉信息和处理信息的能力3.学生听后能用被动语态谈论薯片的发明史。【教学重点】1.重点句型 J Did you know that potato chips were invented

3、 by mistake?They were invented by a cook called2. 用被动语态谈论薯片的发明史【教学难点】1.学生能听懂为什么薯片的发明是一次偶然2用被动语态谈论薯片的发明史【悄感态度】通过薯片发明的故事，让学生明0并不是每一个新事物的发明都需要高深的理论，更重要的是需要我们敢于尝试和创新，从而鼓励学生做生活的有心人，敢于尝试和创新。【教学策略选择与设计】情景教学法、任务型教学法。五.教学过程step I leadingL Tlie teacher shows a magic to students. Then ask 4 students to taste t

4、he taste of the fantasy water.2, Tlie four students write down the words about the taste that they just tasted on the blackboard.3. Teach the students the new words with some pictures.4. Ask students to write down some food with the following taste.sweet（甜的）:salty （咸的）：sour（酸的）:crispy （脆的）：other tas

5、tes:（引入通过让学生品一瓶魔术说，并说出或写下他们尝到的问道，主要是激起学 生上课的兴趣，同时也引出本节的重点单词。让学生以小组合作的形式讨论并 完成有相关味道的单词，主要是为了让学生把之前通过体验和图片中学到的表 味道的单词和生活中的食物联系起来，进一步加深理解）Step n：Ask students to use the words in task Ito describe the food they like or dislike.Example: I like sweet food, so I like eating cake*I dislike sour food, so I d

6、on't like eating lemons.（这个环节主要以说的形式展开，让学生讲述自己喜欢的味道以及食物，从而 达到对目标词汇sweet, salty, sour, crispy进行运用）Step III: Listening1 Ask student to listen and answer the following questions:1) -Where did the stoiy happen?A. ill a restaurantB. at homeC. ill a shop2) How many main characters iii the stoiy?Who ar

7、e they?3) What's George Crum's job?（这个环节主要是通过以上三个问题，让学生明白听故事要先搞清楚什么人在 什么地方发生了什么事。从而训练学生捕捉主要信息的能力，同时也引出新词 customer,问题3的设置又在为下一环节的引出做准备）2. students discuss: if you are a cook, how to make p otato cliips（fi'om a clean potato to crispy and salty potato chips)(这个环节的设置主要是为DskS听力的完成做准备)3 - List

8、en for the the second time and finish the three steps of making potato chipsthe potatoes really, really thinthem for a long time until they were crispy some salt on them（这个环节通过填出做薯片的三个步骤中三个关键动词，主要是为了训练学生捕捉和简单处理信息的能力，同时也教会学生要懂得把握题干中的关键信息）4. Listen for the the third time and finish Ic (Listen and circ

9、le T for tiiie or F for false.)1) , Potato chips were invented by mistake.2) . They were invented iii 1863.3) . The customer thought the potatoes were not thin enougli.4) . The customer said they were not salty enough.5) . George wanted to make the customer happy.6) . The customer was happy in the e

10、nd.（这个环节主要让学生通过完成T/F这项任务，训练学生精听，也就是听细节 的能力，听之前让学生先预测每个句子的关键信息，其实也是教学生做题前先 预测出题人的出题点可能在什么地方，这是对学生做正误判断题的方法指导也 是在为学生听前做准备）5 Listen for the the fbmlh time and finish IdTlie liistoiy of p otato chipsDo you know how potato chips were invented? Potato chipsby a cook called George Ciiim. They were invented

11、 inand then cooked Finally he put lots of saltGeorge Cnim cut the potatoes really, really them for a long time imtil they were on them so they were（这个环节学生已经听了 4遍了，对故事应该了解的比较清楚了，通过这个任 务主要是让学生对所听信息进行运用，从而对学生进行处理和运用信息的能力 进行训练和培养）6. discuss: Why the potato chips was invented by mistake?Listening materia

12、lBoyl: Hey, did you know that potato chips were invented by mistakes?Boy2: Really? What do you mean?Boyl: Well, here ou the bag it says that they were invented by a cookcalled George Cnim.Boy2: When was that?Boyl; Oh, it was back iii 1853.Boy2: So , why was it an accident?Boyl: Well, one day, a cust

13、omer came iuto the restaurant where George worked. He ordered a plate of fried potatoes. Wlien the potatoes came.he said they were cut too thick and sent them back to the kitchen.Boy2:So what happened?Boyl: Well, George was aiigiy, so he cut the potatoes really, really thin.and he cooked them for a

14、long time luitil they were crispy. And lie put lots of salt on them so they were really salty. He tliouglit the customer would hate them.Boy2:Aiid?Boyl: And the customer loved them and asked for more. He told the other customers about them, and soon eveiyoiie was ordeiiiig thiiily cut, crispy, salt

15、potato chips.Boy2:Aiid we are still eating them today. Wliat a cool stoiy!（通过读文本，让学生去弥补之前没听清楚的信息，并勾画出自己没理解的地 方，同时也为后面的复述做准备）whenwhyresultIll 1853a cook called George CrumThe potato chips byby mistake iii 1853. One day, a customerwent toand ordered. But lie thought the potatoestooSo they .to the kitchen.At the same time,the cook George wasaiigiy, so the potatoes. thin.andfoT .untilby himFinally he put on George Crum thought the customer would hate liim.The customer loved.-.and asked fbiHe told，so eveiyone ordered the.pota