(共43张PPT)
What cause global warming?
smoke from factories
smoke from cars
deforestation
heat our homes with oil or natural gas
Ouyang Guang and the editor of Earth Care.
Skim and find out who are the writers of the letters.
Reading and writing
What’s the purpose of Ouyang Guang’s letter?
To get some suggestions for what he can do about global warming.
Read the first letter and answer the questions.
What are Ouyang Guang’s two concerns?
The first is that he feels that individual cannot have effect on huge environmental problems.
The second is that he is not sure where to start with his project.
He is doing a project on global warming.
B. He feels individuals can affect huge environmental problems.
C. He isn’t sure where to start with his project.
D. He wants to get some suggestions from Earth Care.
Which is not the reason why Ouyang Guang writes the letter?
B
Does Earth Care agree with Ouyang
Guang’s opinion that individuals can
have no effect?
Read the second letter and answer the questions.
No, Earth Care doesn’t agree.
Which is not true according to the editor’s letter?
Together, individuals can make a difference to environmental problems.
B. Individuals must put up with pollution.
C. Many activities individuals do can
produce carbon dioxide.
D. Individuals can save energy to slow down global warming.
B
Read the text carefully and fill in the blanks.
What can we do about global warming?
◆ Turn a(n) _________________ off when you’re not using it.
◆ Put on more clothes instead of turning up the _____.
◆ Walk or _________ instead of taking motor vehicles.
◆ ________ cans, bottles, plastics and newspapers.
electrical appliance
heat
ride a bike
Recycle
◆ Buy things made from __________
__________.
◆ Buy products that are made to save ________.
◆ __________ in your garden or your school yard.
◆ Talk with your family and friends about _______________.
recycled
materials
energy
Plant trees
global warming
Do you agree with Quyang Guang that individuals can’t have any effect on huge environmental problems? Give your reason.
Would you talk with your family and friends about global warming and tell them what you’ve learned? Why or why not?
Some examples of using energy and polluting the air:
Turning on a light
Watching T.V.
Listening to a stereo
Washing or drying clothes
Using a hair dryer
Riding in a car
Heating a meal in the microwave
Using an air conditioner
Playing a video game
Using a dish washer
I am doing a project on behalf of my
school about global warming.
on behalf of 代表，为了
I am appealing on behalf of the famine victims.
My husband could not be here tonight, but l want to thank you on his behalf.
Language points
2. … can have little effect on such
huge environmental problems.
have little effect on 对……不起多大作用
Punishment has little effect on him.
have an effect on 对……有影响/起作用
This had a great effect upon the future of both mother and son.
3. Together, individuals can make a
difference.
make a difference 有影响，起(重要)作用
make some / no difference to对……有些/没有关系
That medicine makes no difference to me.
Exercise can make a great difference to your health.
put up with 忍受；容忍
She could hardly put up with that fellow any longer.
That woman, as a housewife, has a lot to put up with.
We have to put up with her bad temper.
4. We do not have to put up with pollution.
put aside 节省(钱、时间)；储蓄；把……放在一边
put away 收拾起来；储存(钱)；喝掉
put back 放回原处；拖延
put down 写下；记下；控制
put forward 提出(意见、建议)；推荐
put off 延期；推迟
put on 穿上；增加；上演
put out 熄灭；使忧虑；扑灭；出版
put up 举起；张开(伞)；张贴；为……提供食宿
put的常用短语
so long as / as long as 只要，如果
As long as there is life, there is hope.
You can go out, as / so long as you promise to be back before 11 o’clock.
I don’t care about the price, so long as the car is in good condition.
5. It is OK to leave an electrical
appliance on so long as you are using
it – …
在用as / so long as连接的从句中，当其谓语为be，而主语和主句的主语相同时，则从句的主语和be可以省略。
I’m sure we are safe as long as (we are) in his care.
我深信只要在他的保护下，我们就会平安无事。
6. Do not be casual about this.
casual adj. 漫不经心的；随便的；
偶然的；非正式的
She is casual about winning the prize.
Jeff has a very casual attitude towards his schoolwork.
Such casual dress would not be correct for a formal occasion.
A casual reader of the library may not need a computerized ticket.
irregular, casual, informal这些形容词均有“非正式的、非正规的”之意。
irregular: 指不按常规、固定模式或计划做事；或指不隶属于任何机构或组织。
casual: 指不太注意场合、仪表等，随意性强。
informal: 指语言、穿着等随便，也指不举行任何形式或仪式的活动。
random, casual这两个形容词均含“随便的，任意的”之意。
random: 指无明确的方向或目的、方法与系统，暗示没有指挥或控制。
casual: 指非正式的，轻松随便的，强调随和性。
7. Recycle cans, bottles, plastic bags and
newspapers if circumstances allow
you to.
circumstance n. 环境，(pl.) 境况
He was forced by the circumstances to do this.
Due to circumstances beyond our control the lecture was cancelled.
In normal circumstances I would have resigned immediately.
condition, state, status, situation, circumstance这些名词均有“状况、情况”之意。
condition: 一般强调产生影响的原因或环境，复数形式指笼统的情况。
state: 普通用词，指人或物在环境、外表、心灵以及健康方面的状况，或指在某一阶段的状态或形式。
status: 指一个人在政治、社会、经济、法律上的地位或身份，暗含地位显要意味。也可用于指政治等事态的状况。
situation: 指明确具体的环境情况或处境。
circumstance: 多指周围的情况或某事发生时的情况。
In pairs make a poster for your school that tells students various ways they can reduce the amount of carbon dioxide in the air.
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 paper, cardboard and newspapers.
Buy products made from recycled materials.
Buy energy – saving products like low energy light bulbs.
Plant trees to absorb CO2.
Tell your friends about global warming.
Every effort counts!
Sample poster
Write a short passage to tell others how to solve the problem of global warming based on the suggestions you have collected. You can add more suggestions if you like. Make a presentation to the class.
Discuss in groups. What else should our government do to slow down global warming?
Listening and speaking
Give money to green the surroundings and protect the forests.
Make laws to protect rare plants and animals.
Encourage people to find and use more renewable energy.
1. We should stop depending on fossil fuels for our energy.
2. 90% of our energy comes from fossil fuels.
3. We can replace fossil fuels with cleaner sources of energy.
4. Nuclear power is a good source of energy.
Listen to Part 1, and decide which statements Professor Keeling does NOT agree with.
agree
agree
disagree
disagree
Listen to Part 1 again and tick the energy sources
that are mentioned. Complete the notes on them.
produce carbon dioxide
Cheap and concentrated form of energy
clean
not practical: need huge areas of land to provide enough energy.
clean
not very practical with present technology
does not produce carbon dioxide
dangerous
Sources of energy Notes
Fossil fuels
Wind power
Energy from the sun
Nuclear power
First we must try to find ways to use fossil fuels
that does not put carbon dioxide into the air.
Second we must produce products that are
economical with energy.
Third we must ask people to cut down on the
energy they use.
Listen to Part 2 and then list three things we can do to save energy.
Listen to Part 2 again and fill in the blanks.
factories
energy
problem
global
developed
developing
developing
dioxide
blame
Suggested answers:
Do you have any good ideas of being green in daily life?
7 ways to go green in life
账单
