外研英语必修3Module4 Sandstorms in Asia Listening Speaking课件（共21张PPT）

(共21张PPT)
Listening Speaking
Module 4 Book 3
The snow man is melting.
Many factories are producing terrible chemicals！
Gases from the chimneys are polluting the atmosphere，which is also damaging the environment.
It’s possible that the coastal city could disappear under water someday.
Air pollution is being caused by more and more automobiles .

More trees， more oxygen .
Less trees， more carbon dioxide.
Garbage , some of which can be recycled, is surrounding the cities.
Go through the key words:
atmosphere(大气）
carbon dioxide（二氧化碳）
chemical（化学药品）
damage (v.& n.)（损坏）
environment（环境）
garbage（垃圾）
melt（融化）
take in （吸入）
pollution（污染）
recycle（再循环）
the Poles（极地）
coastal（滨海的）
concerned（关心的，担心的）
evidence（证据）
major（主要的，多数的）
urgent（紧急的）
in a nutshell(简而言之）
give out （发出光，热，气体）
Activity 2: listen to an environmental expert’s speech. Put the topics below in the order you hear them.
Checking your answers:
E
D
C
B
A
A garbage B trees C pollution from cars D melting ice at the poles E climate
Put the topics below in the order you hear them.
Activity 3: Listen again and answer these questions.
1. What is the most urgent problem of all?

2. What examples of coastal cities does David give?


3. Why is the climate getting warmer?
A population B education C climate
A New York and Hong Kong B Shanghai and New York
C Shanghai and Tokyo
A Because pollution is stopping the sun’s heat leaving
the atmosphere.
B Because there are too many people on the earth.
C because gases from cars make the heat leaving the atmosphere.
4. What does the most damage to the atmosphere?


5. What happens when we cut down a lot of trees?


6. How does the interviewer feel about the situation?
A chemicals given out by factories
B all the garbage that we produce
C carbon dioxide from cars.
A we have less land.
B There is more carbon dioxide .
C There is more oxygen.
A Optimistic. B pessimistic C sceptical
Activity 3: Listen and answer these questions.
1. What is the most urgent problem of all?

2. What examples of coastal cities does David give?


3. Why is the climate getting warmer?
A population B education C climate
A New York and Hong Kong B Shanghai and New York
C Shanghai and Tokyo
A Because pollution is stopping the sun’s heat leaving the atmosphere.
B Because there are too many people on the earth.
C because gases from cars make the heat leaving the atmosphere.
C
B
A
?
4. What does the most damage to the atmosphere?


5. What happens when we cut down a lot of trees?


6. How does the interviewer feel about the situation?
A chemicals given out by factories
B all the garbage that we produce
C carbon dioxide from cars.
A we have less land.
B There is more carbon dioxide .
C There is more oxygen.
A Optimistic. B pessimistic C sceptical
C
B
A
Speaking
Work in pairs. Complete the following tasks:
Task 1: List some bad behaviors in our school which do harm to the environment. You can also give some examples.
Bad behaviors:
Throwing things away after using them just once.
Leaving the lights on after leaving the classroom.
Leaving the water running after washing hands or something.
Using disposable chopsticks or bowls.
Producing too much garbage and litter about
……..
Task 2 : Discuss :
What can we do to stop these bad behaviors, and therefore take care of our environment?
Assignment:
Think about what you will do in the future to protect our environment and write it down.
You are to share it in class in the next period.
Thank you for being with us!
Goodbye!