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第四课时Section B(1a~1e)
知识目标 __________________________________________
类别 课时要点 4.What would you most like to invent if you could?
重点单词 1.crispy(adj.)脆的;酥脆的
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2.salty(adj.)咸的
3.sour(adj.)酸的;有酸味的 环节说明:课前的师生问答互动不仅让学生回顾了上节课的
4.customer(n.)顾客;客户
内容,巩固了被动语态,同时,让他们知道创新和发明可以改善人
重点句式 1.—Did you know potato chips were invented by
类的生活,要勇于开拓、创新。
mistake?你知道土豆片是被错误地发明的吗?
—I didn’t know that.Who invented them?我不知道,是 Step 2完成教材1a-1e的任务
谁发明的?
【操作案例】
2.The customer thought the potatoes were not thin
enough.顾客认为土豆不够薄。 1.要求学生翻开课本P45,迅速阅读1a部分的内容。并按要
3.Finally he put lots of salt on them so they were salty 求完成课本上相应的任务,然后要求4名同学给出自己的答案,
enough.最后他在它们上面撒了许多盐以使他们足够
并进行个读、齐读。(2分钟)
咸。
课堂环节 2.要求学生完成1b部分的任务,然后邀请几名同学给出自
§自主学习方案 己的答案,并把收集的答案列举在黑板上。(4分钟)
【新词自查】 3.听第一遍录音,完成课本上1c部分的任务。(2分钟)
根据句意及首字母提示完成句子。 4.听第二遍录音,完成课本上1d部分的任务。(2分钟)
1.I don’t like lemons because they are too sour. 5.听力内容巩固训练。要求学生根据所听到的内容完成下列
2.Lucy and Lily are twins.People often mistake them for each other. 短文。完成后要求若干学生给出自己的答案。以巩固对听力内容
3.For a restaurant,customers are the most important. 的了解。(3分钟)
Do you like potato chips? Do you know how the potato chips
4.The fish was too salty because my mom put too much salt on it.
were invented? Now,let’s listen and fill in the blanks.
5.We often put the food into the fridge to keep it fresh in summer. Potato chips were invented by mistake.They were invented by a
§课堂导学方案 chef called George Crum.One day a customer thought the fried
potatoes weren’t thin enough and weren’t salty enough.So George cut
Step 1情景导入 them really thin and cooked them for a long time until they were
参考案例 crispy.And he sprinkled a lot of salt on them so they were salty.
6.听第三遍录音,并打开听力材料,全班逐句进行跟读。(2分
回顾:在前面的课程我们已经学习并了解了几种有用的发
钟)
明,它们在很大程度上改变了我们的生活,使我们的生活更丰富
7.放下听力材料,要求学生利用1c和1d的听力内容,模仿
多彩。教师可提几个简单的问题来回顾上节课的内容,然后邀请
几位同学就提出的问题给出自己的答案或见解。(4分钟)
1e方框所给的对话编造一个有关土豆条的发明的对话练习。然后
邀请2-3对同学当堂分角色演示。看哪一对的表现最佳。(5分钟)
Questions:
环节说明:将听、说、读、写的任务结合起来不仅锻炼了学生
1.When was the telephone invented?
的语言综合运用能力,还巩固了学生对目标语言的学习、识记和
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运用;薯条的发明的小故事有很强的趣味性,让学生体会到了英语
2.Can you imagine the life without telephones?
学习的乐趣。
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§当堂评价方案(详见当堂训练部分)
3.What do you think is the most helpful invention?