|
Unit 2 Air
Read a poem
Air
Air has no smell.Air has no taste.
But when the wind blows,You feel it on gour face.
Look at a kite,Or a plane in the air.
How do they stay there? They ride on air.
How does a balloon Rise in the air,And lift people up?
It uses hot air.
We need air to breathe.
We need air to survive.
And when we breathe it,It keeps us alive.
page 9
Look and read
What's the matter,Kitty?
Why are you crying?
I'm not crying.My eyes hurt.
It's the smoke from the traffic.
There's a construction site.Look at the dust.
The workers are burning rubbish there.
Look at the smoke from the fire.
The air in Garden City is very dirty.
That's air pollution.
page 10
Look and think
Where does air pollution come from?
traffic/smoke
factories/smoke and dust
construction sites/dust
aeroplanes/smoke
power stations/smoke and dust
Look and say
The air in Garden City is very dirty.
That's air pollution.
Where does air pollution come from?
It comes from smoke from traffic.
page 13
Look and read
The first aeroplane
A hundred years ago,there were no aeroplanes.
Then Orville Wright and his brother,Wilbur,made the first aeroplane.
The Wright brothers lived in Kittyhawk,USA.
They made bicycles.
The brothers watched the birds.
They watched them fly through the air.
They wanted to fly like the birds.
Orville and Wilbur Wright made an aeroplane.
They called it FLyer 1.
On 17 December 1903,Orville Wright climbed into the aeroplane.
He started the engine.
The aeroplane rolled forward and flew.
Not many people saw this first flight.
Only four men and a boy watched it.
The aeroplane did not fly very far:only 36.5 metres.
It did not fly very hight:only 3.5 metres.
It did not fly very fast:only at 48 kilometres per hour.
It did not fly for very long:only for 12 seconds.
However,it was the first aeroplane to fly.
Tommy Target
quickly/slowly
gently/heavily
What's the matter?
The air is quite dirty.
The air is very clean.
Where does air pollution come from?
| 
