Words and expressions
invent invention inventor calculator be used for v. 发明；创造 n.发明；创造 n.发明人；创造者 n.计算器 用来做……
Do you know?
What are the Four Great Inventions in ancient China?
four great inventions
A: When was the … invented? B: It was invented in _____.
light bulb 1879
When was it invented? It was invented in 1879. Who was it invented by ? It was invented by Edison. What’s it used for?
It’s used for helping people see in the dark.
When was it invented? It was invented in 1885. Who was it invented by ? It was invented by Benz. What is it used for?
It is used for traveling.
When was it invented? Who was it invented by ? What is it used for?
? What do you want to invent? ? What’s it used for?
used for driving and flying used for walking and singing
Thank you ！