Unit 6 When was it invented?

Unit 6 Section A 1 (1a-2d)

一、教学目标：

1. 语言知识目标：

1) 能掌握以下单词： heel, scoop, electricity, style, project, pleasure, zipper, daily, website, pioneer, list, mention

能掌握以下句型：

① -When was the telephone invented? -I think it was invented in 1876.

② -What are they used for? -They are used for seeing at night.

2) 能谈论物品被发明的时间、发明者，表达某发明的用途。

2. 情感态度价值观目标：

了解一些近现代发明的时间及用途，激发自己热爱发明的情感。培养想象力，善于观察事物。面对难题，用积极的态度去解决，发挥想象力，认识世界，改造世界。

二、教学重难点

1. 教学重点：

　1) 本课时的单词、词组和句型，学习运用一般过去时态的被动语态。

　2) 学会询问发明时间及用途的基本句型：

-When was the telephone invented? -I think it was invented in 1876.

-What are they used for? -They are used for seeing at night.

2. 教学难点：

运用一般过去时态的被动语态来讨论发明的发明时间及用途。

三、教学过程

I. Warming up

1. 展示一些近代发明的图片与近代发明的发明者，让学生们将图片与发明者相连。

　T: Do you know what these inventions are? S1: It's a car.

　S2: It's a telephone. S3: It's a television.

　T: Do you know who these inventors are? S1: Karl Benz

　S2: Alexander Bell S3: J. L. Baird

　Let Ss match the inventions and the inventors.

Ⅱ. Presentation

　引导学生们学习一般过去时态的被动语态结构。

让学生们看大屏幕的如果爱和发明者的图片,并将句子改为被动语态。

　如：T: Karl Benz invented the first car in 1885.

　　　　The first car was invented (by Karl Benz) in 1885.

Ⅲ. Talking

1. Look at the pictures in 1a. Discuss with your group, in what order do you think they were invented? Try to number them [1-4].

2. Ss discuss with their partners and number the pictures.

3. Talking about the inventions:

　A: I think the TV was invented before the car.

　B: Well, I think the TV was invented after the TV.

Ⅳ. Listening (1b)

1. T: Tell Ss look at the pictures and years on the left.

2. Play the recording for the Ss to listen.

3. Ss listen to the conversation and try to match the invention with the proper year.

4. Play the recording again.

5. Check the answers.

Ⅴ. Pair work (1c)

1. Ss try to remember the invention and the year.

2. Student B, cover the dates. Student A, ask Student B when the things in the picture in 1b were invented. Then change roles and practice again.

3. Let some pairs ask and answer in pairs.

　e.g. A: When was the telephone invented? B: I think it was invented in 1876.

...

Ⅵ. Learning the new words & Listening

Look at the pictures then learn the new words.

Work on 2a: