初中英语人教新目标 (Go for it) 版九年级全册Unit 6 When was it invented?Section B图文课件ppt

自主学习方案

1.学生自学生词，并记住单词拼写和拼读。

2.预习课本，找出重点短语和句式。（见学案中预习检测的内容）

3.读记后完成预习检测作业。

课堂导学方案

Step 1    复习

简单复述茶是怎样被发现的。

Step 2    情景导入

T：Some inventions have changed our lives, such as telephone, car，computer and so on. They are helpful. But some inventions were invented by accident or by mistake. They are also helpful to us. Tea was invented by accident. And we will learn the inventions that were invented by mistake.

环节说明：教师用自己的知识导入新课，用学生未学的知识来激发学生的兴趣，同时巩固了语法点be invented…

Step 3     完成教材1a~1e的任务

1.阅读1a内容，完成相应任务。

2.要求学生完成1b部分的任务，然后找几名学生给出自己的答案。并把收集的答案列举在黑板上。

3.听第一遍录音，完成课本上1c部分的任务。

4.听第二遍录音，完成课本上1d部分的任务。

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对话。完成后要求若干学生给出自己的答案，以巩固对听力内容的理解。

Do you like potato chips? Do you know how the potato chips were invented? Now, let’s listen and fill in the blanks.

Potato chips were invented by mistake. They were invented by a cook called George Crum. One day a customer thought the fried potatoes weren’t thin enough and weren’t salty enough. So George cut them really thin and cooked them for a long time until they were crispy. And he put 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。

7.放下听力材料，要求学生模仿听力内容，利用1c、1d的信息分角色进行对话练习。然后邀请2~3对学生当堂演示，看哪一对的表现最佳。

环节说明：将听、说、读、写的任务结合起来，不仅锻炼了学生的语言综合运用能力，还巩固了学生对目标语言的学习、识记和运用。

Step 4     小结训练

1.对不起，我刚才错拿了你的字典。

Sorry, I took your dictionary _______________ just now.

2.薯条被炸了很久。

The potato chips ______________ for a long time.

3.它们不够咸。

They were not _____________________.

4.你知道薯条的历史吗？

Do you know ______________________ potato chips?

答案： 1.by mistake      2.were cooked       3.salty enough   4.the history of

Step 5     问题探究

1.那消息使我悲伤。

The news _________________ me _______________.

2.我终于让那位顾客满意了。

I made the ____________happy ____________________________.

答案： 1.makes,sad         2.customer,in the end

教学反思

本课时通过向学生讲述发明的意外性来导入新课，激发学生的学习兴趣和主动学习的积极性，这样可以使学习效果大幅度提升。另外，通过听力训练以及模仿对话练习，锻炼了学生的语言学习及运用的能力，同时也巩固了学生对目标语言的掌握。