Module 4 Sandstorms in Asia Listening and vocabulary课件（23张PPT）

课件23张PPT。Module 4
Sandstorms in Asia
Listening and Vocabularyatmosphere carbon dioxide chemical damage melt environment garbage Don’t forget to take out the ________ and throw it away.
Students in our school are taught in a safe, secure _____________.
3. ________ is a substance used in chemistry.garbageenvironmentChemical Stage 1 Reviewing the wordsComplete the sentences with the following words.4. The ice at the Poles is beginning to _________.
5. The restaurant offers a romantic __________. atmospheremelt6. Trees take in _____________and give out oxygen.
7. The earthquake caused great _______. carbon dioxidedamageStage 2 Leading-inThe average temperature has been __________
in china in the past 60 years.increasingdecreasingWhat’s the problem?Global WarmingThe average temperature is _____________ all
over the world.increasing1. The ice at the poles is beginning to melt due to global warming.
2. The sea may rise and cities on the coast may disappear.
3. Too much oxygen pollutes the atmosphere. Stage 3 Pre-listeningA quiz: how much do you know about global warming? Tell the following statements are T/F.4. Trees give out carbon dioxide and take in oxygen.
5. Burning garbage can pollute the atmosphere and it is an important reason for global warming. Read the listening text and finish the mind map.hotterwarmericeseacoastal citiesgaseschemicalstreesgarbagepollutionStage 6 Post-readingInt: David, what do you see as the main problems with the environment?
D.U: Well, in a nutshell, the most urgent problem of all is the climate. The world’s climate seems to be getting warmer.Guess the meanings of the these phrases.to explain something very difficultly
to explain something very simplyInt: It sounds very frightening.
D.U:I couldn’t agree with you more. It’s scary!
It’s frightening.
It’s interesting.Int: Can you explain why the climate’s getting warmer?
D.U: Well, I’ll do my best!
This is the best explanation.
I’ll try as hard as I can.Int: From what I understand, carbon dioxide from cars is a major problem.This is what I understand.
I think I understand.Discuss with your partner about what we should do to prevent global warming.
So we are supposed to take measures to prevent this. First of all,____________________
________________________. Besides,_______
_______________________________________. What’s more,____________________________
____________________________.
All in all, the most important thing is that we should ________________________________
___________to prevent global warming.
disposable goodsplastic bagsNowadays, with the development of economy the climate is becoming warmer and warmer. And this problem becomes more and more serious, which has some bad effects on our environment and our health. So we are supposed to take measures to prevent this. First of all,____________________
________________________. Besides,_______
_______________________________________. What’s more,____________________________
____________________________.
All in all, the most important thing is that we should ________________________________
___________to prevent global warming.
we should use clean energy instead of oil and coalgo to work by bus or on foot instead of drivingwe can we should plant more trees to reduce the carbon dioxide in the airreduce, reuse and recycle the resourceswe haveTo protect our earth is to
save ourselves.
Reduce, reuse, and recycle.Homework Write a composition whose title is How to Prevent Global Warming.