10Module 4 The natural world AirAirairfactoryfactorysmokeballoonballoon圆圆的球在天上dirtycleanThink and sayIt has no colour or shape
It has no smell or taste
We cannot see it, but we can feel it
It is everywhere
every + whereDoes it have any colour or taste
What is it
Can you see or feel it
It is air
No, it doesn’t
I cannot see it, but I can feel it
It is important to all people
It is also important to animals and plants
We all need it to keep us alive
live-aliveLook at the kite and the balloon
Look at the plane and the bird
They all need it too
It keeps them high in the sky
It keeps them high in the sky
It keeps kites high in the sky
It keeps balloons high in the sky
It keeps planes high in the sky
It keeps birds high in the sky
kiteIt keeps kites high in the skyballoonbirdplaneIt keeps balloon