PPT预览
Firemen use water to put out fires.Farmers use water to grow crops.
How do we use water?
We use water to wash our hands.We use water to wash vegetablesand clothes too.
Ms Guo: Where does water come from?
Joe: It comes from the sea.
Alice: It comes from the rain.Peter: It comes from the tap too.
Ms Guo: All of you are right. How do we use water?
Jill: We use water to wash our hands. We use water to wash vegetables and clothes too.
Alice: Farmers use water to grow crops. Firemen use water to put out fires.
Ms Guo:Verg good. Water is very useful.
