When was it invented教案
b: i don’t know.
a: when was it invented?
b: it was invented in tang dynasty.
a: what is it used for?
b: it is used for the war,
2.a: what do you think is the most important invention?
b: that is compass.
a: when was it invented?
b: it was invented in war dynasty.
a: who was it invented by?
b: it was invented by chinese people.
a: what is it used for?
b: it is used for knowing the direction.
3.a: what do you think is the most important invention?
b: that is printing.
a: when was it invented?
b: it was invented one thousand three hundred years ago.
a: who was it invented by?
b: it was invented by bi sheng.
a: what is it used for?
b: it is used for printing.
任務(wù)ⅳ.
1.yes, it can.
2.yes, it can.
3.the computer.
4.your personal card.
5.yes, i can.