改变生活的发明

　　Describe a new invention that is popular in all time/ has changed our life (new)

　　You should say:

　　What it is

　　How it changed our life

　　How popular it is among different age groups

　　And explain how you feel about it.

　　Part 3

　　1. Why do people invent new things?

　　2. Do new inventions make people lazy?

　　3. Is it good to use new technology in education?

　　4. Do you think it good to play movie in history class?