九年级Unit 13 We're trying to save the earth! Section B (3a-Self Check)课件（17张PPT）

Section B (3a-Self check)
Unit 13 We're trying to save the earth!
Language goals
By the end of the class, you will be able to
1.Master the words and sentences of Unit 13.
2.Talk about pollution and environmental protection.
3.Write a passage about The world and the environment
Lead in
What is the problem?
The earth is in danger.
Think about the environment in your town/city and complete the chart below.
Good
environment
Why？
Bad
environment
Why？
Which parts of the town/city have a nice environment？Why are they nice？Which parts need to be improved？Why?
Good environment
Why?
Bad environment
Why?
park
the air is clean
streets
so many trees
restaurants
clean and tidy
river
a lot of rubbish
so many cars
air
too many factories
streets
3a Think about the environment in your town/city and
complete the chart below.
Which parts of the town/city have a nice environment？
Why are they nice？Which parts need to be improved？Why?
3b Write a letter to the city mayor about the problems and your suggestions.
In your letter，describe the environmental problems in your town/city.
·What are the problems?
·Where are they?
·What or who is causing these problems?
Then，give suggestions or possible ways to solve the problems.
I think that...
We should/could...
I suggest...
What caused the environmental problems?
Problems
pollution
waste of
energy
break the balance
of ecosystem
waste water
waste gas
plastic bags
…
forget to turn off the light
or shower
…
cut down too
many trees
kill the animals
…
the environment around us is becoming
worse and worse…,we can't see…,the air is so…
How to save the earth
should/
can …
had
better ...
It’s necessary /
important to …
Save the energy
Cut down the pollution
other
ways
ride bikes or walk instead of…
…
turn off the light /shower
…
keep the balance of ecosystem,
plant more trees, …
the little things in
daily lives
government
and public
1. Write different forms of the words. Then add more to each group.
v.— n.
pollute ---
act ---
protect---
inspire ---
build ---
create ---
pollution
action
protection
inspiration
building
creation
n.— adj.
fame ---
wood ---
science---
health ---
south ---
care ---
famous
wooden
scientific
healthy
southern
careful
Self Check
adj.— n.
different ---
important---
difference
importance
adj. — adv.
slow ---
wide ---
sudden ---
real ---
slowly
widely
suddenly
really
Self Checkc
2. Match each statement with the grammar structure.
Statement
Grammar
The river used to be so clean.
Present progressive
We have seen many changes in the environment.
Modal verbs
People should take public transportation more.
Passive voice
The river is polluted by factories.
used to
The air pollution is getting worse and worse.
Present perfect
3. Write ways to cut down on these kinds of pollution.
Kinds of pollution
Ways to cut down
water pollution
land pollution
noise pollution
air pollution
Stop factories from throwing waste into rivers.
Try not to use plastic bags when shopping.
Cut down the number of cars.
Reduce the number of factories that burn coal.
从方框中选择合适的选项补全短文。
Recycling is actually a very easy thing to do.You simply leave your recyclable things out with your rubbish to be picked up each week.(1)________ If just one household recycled everything they could，that would make a big difference in protecting the environment.(2)________Besides recycling，people need to properly get rid of chemicals.(3)________ That can pollute both the air and the water.You need to remember anything you pour on the ground will be in your drinking water in the end.That is how the water cycle works.(4)________ This keeps the air and water safe and clean.
By recycling just one can，you are making a huge difference in protecting the planet.(5)________ That is something you can really be proud of.
Exercises
Exercises
A.So,by recycling all that you can, you are helping to save the earth.
B.By doing this your reduced waste makes a difference to the environment.
C.You should always bring dangerous waste to a rubbish bank so it can be recycled or properly dealt with.
D.If every household recycled everything they could，it would greatly help the planet.
E.Too many people throw their dangerous waste into their rubbish or pour it on the ground.
从方框中选择合适的选项补全短文。
Recycling is actually a very easy thing to do.You simply leave your recyclable things out with your rubbish to be picked up each week.(1)________ If just one household recycled everything they could，that would make a big difference in protecting the environment.(2)________Besides recycling，people need to properly get rid of chemicals.(3)________ That can pollute both the air and the water.You need to remember anything you pour on the ground will be in your drinking water in the end.That is how the water cycle works.(4)________ This keeps the air and water safe and clean.
By recycling just one can，you are making a huge difference in protecting the planet.(5)________ That is something you can really be proud of.
Exercises
B
D
E
C
A
Homework
1. Memorize all the language points of Unit 13.
2.Review Unit 14-Section A (1a –2d).
Bye-bye!