Unit 10 Air 第二课时课件

课件35张PPT。Oxford EnglishModule 4 The natural world10 AirAir has no ______ or _______.
Air has no _______ or _______.
We cannot ____ it, but we can ____ it.
Read and completecolourshapesmelltasteseefeelAir is __________.
It is important to all ______.
It is also important to ______ and _____.
We all need it to keep us ____.everywherepeopleanimalsplantsaliveRead and completeLook at the _____ and the ______.
Look at the _____ and the _____.
They all need it too.
It keeps them _____ in the sky.kiteballoonplanebirdhighRead and completeIt 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?
It is air.How to make a parachute?Think and say1. The parachute falls down slowly.2. The parachute is open.3. The parachute hits the ground gently.4. There is air in the parachute.Read and sayAir is very important!
Why?Think and sayThe air is dirty in some places.
We call this air pollution.
Look and readAir pollution is harmful!
1 It’s harmful to the health of people
2 It’s harmful to the nature.
3 Air pollution spreads easily.
4 Air pollution is a global problem.
5 People should stop using coal.What’s the matter?air pollutionAir pollution
Air keeps us alive.
We get sick if the air is too dirty.
Where does air pollution come from?Ask and answersmokeWhere does air pollution come from?It comes from the smoke.Ask and answerWhere is the smoke from?It comes from cars, buses
and factories.Ask and answerfactoryfactoryfactoriesWhat’s the matter with Kitty?
It’s the smoke.It’s from cars, buses and the factory. Her eyes hurt.What hurts her eyes?Where is the smoke from? What’s 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.How is the air?
dirtyHow is the air in the picture?
It’s dirty.How is the air in the picture?
cleanHow is the air in the factory?
It’s dirty.How is the air in the factory?
It’s clean.factorysmokedirtycleanRead and spellAPI and Health Implications (Daily Targets)
API Air Pollution
Level：
0 - 50 Excellent
51 -100 Good
101-150 Slightly Polluted
151-200 Lightly Polluted
201-250 Moderately Polluted
251-300 Heavily Polluted
300+ Severely Polluted
Homework1. Listen to and read Student’s Book page 70.
2. Read, copy and spell the words:
factory, factories, smoke, dirty, clean
3. Think about how to keep the air clean.
4. Finish Workbook pages 57 and 59.