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B6 unit 4 global warming-Using language (1)


1.知识目标
To get the general idea of the passage and understand what can we do about global warming.

2. 能力目标
To improve reading ability and writing skills.

3. 情感

目标
To know what the effects global warming has brought about and what we should do to protect our earth.

the causes

the effects

Global warming
A rising population
The use of energy Greenhouse gases

causes

Burning of fossil fuels Agricultural industry Destruction of forests

Global warming causes many extreme

weather events.
drought

flood

typhoon

Tsunami hits Indonesia

sandstorm

Desertification

droughts

What's the result severe storm of global warming rising of sea level
the spread of diseases destruction of species

famine

glaciers melt 冰川融化
sea level rises 海平面上升

species extinction 物种灭绝

Skim the letters and find who
the writers are and what their

purpose of writing the letters is.

The first letter is written by a student who is on behalf of his school, asking for suggestions for his project — global 代表 warming. The second letter is written by an editor of Earth Care magazine,who offers the student some suggestions on what to do about global warming.

Task: List Earth Care’s suggestions. 1.If you are not using electrical appliances, turn them off. 2.Put on more clothes instead of turning up the heat. 3.Walk or ride a bike if you can. 4.Recycle and buy things made from recycled materials. 5.Get your parents or friends to buy products that are made to save energy.

6.Plant more trees.
7.Talk with your family and friends about global warming and tell them what you’ve learned.

Have you found that in school...

Have you found that in school...

What’s your feeling?

Let's live in low-carbon way!

Writing—Make a poster

Make a poster for your school that tells students various ways they can reduce

the amount of cabon dioxide in the air.

The steps to write the poster ?Underline the most important parts of earth care's suggestions. ?List the ways to reduce carbon dioxide in the air. ?Use imperative sentences(祈使句) in your poster. ?Give your poster a large heading. ?Make a slogan at the end like the one at the end of the letter from Earth Care.

Sample poster
Fight global warming
Cut down on energy. Cut down on carbon dioxide.
? If not using an electrical item, turn it off.

? If you suddenly feel cold, don’t turn the

heat up, put on a jacket instead.

?Walk

or ride a bike and save fossil fuels.

?Recycle
?Buy ?Buy ?light ?Plant ?Tell

paper, cardboard and newspapers.

products made from recycled materials.

energy-saving products like low energy
bulbs. trees to absorb CO2. Every effort counts!

your friends about global warming.

1. Finish your poster after class; 2.Find out the expressions in the Text:

on behalf of... have little effect on... advocate improvements have a commitment individuals can make a difference put up with... leave an electrical appliance on so long as and so on turn up the heat refresh your spirit finally and most importantly


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