沪教牛津版(六三制三起)六年级上册Unit 10 Air优质课件ppt

这是一份沪教牛津版(六三制三起)六年级上册Unit 10 Air优质课件ppt，共28页。

Air has n ______ r _______.Air has n _______ r _______.We cannt ____ it, but we can ____ it.Air is __________.
What d yu think f air?
It is imprtant t all ______.It is als imprtant t ______ and _____.We all need it t keep us ____.
Why is it imprtant?
Lk at the _____ and the ______.Lk at the _____ and the _____.They all need it t.It keeps them _____ in the sky.
What abut ther things?
Is air imprtant? Why?
Think and say
Air, water and fd keep us alive.
We can live withut fd fr five weeks.
We can live withut water fr five days.
We can live withut air fr nly five minutes.
The air is dirty in sme places. We call this air pllutin.
Lk and read
Air pllutinAir keeps us alive. We get sick if the air is t dirty.
air pllutin
What makes the air dirty?Where is the smke frm?
What makes the air dirty?
Ask and answer
The smke frm cars, buses and factries.
Hw d Ben and Kitty feel abut the airin different places?
Hw is the air in the street?
Hw is the air in the park?
It's dirty.
It's clean.
What’s the matter, Kitty? Are yu crying?I’m nt crying. My eyes hurt. It’s the smke.Where is the smke frm? It’s frm the cars and buses. Lk at the black smke frm the factry. It makes the air dirty.Let’s g t the park, Ben. The air is clean there. OK.
What’s the matter with Kitty?
It’s the smke.
It’s frm cars, buses and the factry.
Her eyes hurt.
What hurts her eyes?
Where is the smke frm?
What abut the park?
The air is s fresh here. Yes. There are a lt f trees in the park. Trees keep the air clean.We shuld plant mre trees and keep the air clean.Yes! We shuld keep ur city clean.
The air n Earth is getting dirty.
We burn cal t make electricity(电). Factries give ut a lt f smke.
The smke frm
factriescarsbusesburning wdfire crackers
makes the air dirty.
Lk at the pictures. Talk abut them with yur classmates.
plant mre treesride ur bikes mre ftentake buses mre ftendirve ur cars less ftenuse bth sides f the papertell factries nt t pullute the air
What shuld we d t keep the air clean?
Which d yu want?
We nly have ne Earth! We must keep it healthy!
Think and write
Air pllutin is harmful!1 It’s harmful t the health f peple.2 It’s harmful t the nature.3 Air pllutin spreads easily.4 Air pllutin is a glbal prblem.5 Peple shuld stp using cal(煤).