资源介绍：压缩包内含9个课时的教案，共9份。教师可直接下载使用，无需加工。

一、 导入（启发探究  3分钟）
 通过课件呈现中国古代的发明:
gun powder/compass/paper making/printing
然后问学生:What are they?
Help the students to say :They are four inventions of China.
Get the students to repeat.
叫学生列举一些他们知道的发明,如car,telephone,computer,TV等。
Then show some inventions on the screen to the students:
Telephone, calculator, car, personal computer, TV, light bulb, alarm, clock, microwave oven, electric slipper.
Teacher: There are many useful things in the world. They help us a lot in life. (Show some pictures on the screen)