air
英 [eə(r)]everywhere
英 [ˈevriweə(r)]alive
英 [əˈlaɪv]balloon
英 [bəˈluːn]factory
英 [ˈfæktri]smoke
英 [sməʊk]dirty
英 [ˈdɜːti]clean
英 [kliːn]hurt
英 [hɜːt]fresh
英 [freʃ]plant
英 [plɑːnt]keep alive
英 [kiːp əˈlaɪv]plant trees
英 [plɑːnt triːz]It keeps them high in the sky.
It has no colour or shape.
It has no smell or taste.
We cannot see it, but we can feel it.
It is everywhere.
It is important to all people.
It is also important to animals and plants.
We all need it to keep us alive.
Look 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.
What is it?
What' the matter, Kitty? Are you crying?
I'm not crying. My eyes hurt. It's the smoke.
Where is the smoke from?
It's from the cars and buses.
Look at the black smoke from the factory. It makes the air dirty.
Let's go to the park, Ben. The air is clean there.
OK.
The air is so fresh here.
Yes. There are a lot of trees in the park. Trees keep the air clean.
We should plant more trees and keep the air clean.
Yes! We should keep our city clean.