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 balloons high in the skyIt keeps birds high in the skyIt keeps planes high in the sky课堂笔记1.has no 没有eg: It has no colour or shape.2.can+V 原eg:I can walk.3.It is important to… 对…是重要的4.Need to do 需要做…They need to study hard.5.It keeps…high in the sky.eg: It keeps balloons high in the sky.Ben: What’ s the matter, Kitty ? Are you crying ?Kitty: I’m not crying. My eyes hurt. It’s the smoke.Ben: Where is the smoke from ?Kitty: It’s from the cars and buses.Ben: Look at the black smoke from the factory. It makes the air dirty.Kitty: Let’s go to the park, Ben. The air is clean there. Ben: OK.The smoke in the street comes from the _______,________ and a _______.The air is ______ in the street.carsbusesfactorydirtyKitty: The air is so fresh here.Ben: Yes. There are a lot of trees in the park. Trees keep the air clean.Kitty: We should plant more trees and keep the air clean.Ben: Yes!...