unit6 A2.ppt
(共18张PPT)
Where does … come from
It comes from … .
1.A sprout can become a plant.
2.An apple flower can become
an apple.
3.The water can become
vapour.
How can the water become vapour
The sun shines and the water becomes vapour.
When the sun shines, what happens about water
The water becomes va...