多媒体设备

4. 标签

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: AlexanderBell

　　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 carin 1885.

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

Ⅲ. Talking