人教版选修6Unit 4 Global warming reading(共45张PPT)

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名称 人教版选修6Unit 4 Global warming reading(共45张PPT)
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版本资源 人教版(新课程标准)
科目 英语
更新时间 2014-06-20 09:17:33

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课件45张PPT。Module 6 Unit 4
Warming-up and Reading
www.themegallery.com Is energy important to us? Why?
What do we use energy for?www.themegallery.comstove light things that use energy in your home micro-wave oven air conditioner mp4 television hairdryer video player fridge computer washing machine stove火炉brainstormingwww.themegallery.comFind out the related energywindmillswindWind energy is used as power to
produce electricity by windmills.www.themegallery.coma coal power station / coalFind out the related energywhere electricity is produced by burning coals.www.themegallery.comoil refinery(炼油厂)
/
oilFind out the related energyin which oil is refined and made pure. www.themegallery.comnuclear power plant(工厂) / nuclearFind out the related energyIt is designed to transform nuclear energy into electricity. www.themegallery.comsolar panels(太阳能电池板) / solar powerFind out the related energySolar panels on the roof of a house are used to collect solar energy, making your house warm or heating your water.www.themegallery.coma hydro-electric dam
(水力发电大坝) / waterFind out the related energyThey are used to keep back water and raise its level for irrigation or for producing electricity, etc.www.themegallery.comnon-renewablerenewablewww.themegallery.comRenewable or non-renewable?√www.themegallery.comRenewable or non-renewable?√www.themegallery.comFossil Fuel(矿物燃料)coaloil natural gas● ● ● ● ● ●www.themegallery.comVideo watchingwww.themegallery.comSkimmingSkim the title:
THE EARTH IS BECOMING WARMER – BUT DOES IT MATTER?What is the main topic?
The earth. B. Global warming.

C. Becoming warmer doesn’t matter.

?www.themegallery.com The first paragraph is in bold(粗体), which once again introduces
_________________________________. SkimmingSkim the first paragraph: the problem of global warming magazinewww.themegallery.comSkimmingWho wrote the article?What is the name of the magazine?Tip: In English, some nouns begin with a capital letter(大写字母), such as names of people and places, titles of magazines, newspapers, stories and books, people’s titles(头衔), etc..Skim the first paragraph: Sophie ArmstrongEarth Carewww.themegallery.comSkimmingThe organization of the article: IntroductionA titleBodywww.themegallery.comSkimmingSkim the body part(9 paras): Para. 1Para. 2-3IIIPara. 4-8IIIPara. 9IVIntroduction Body Conclusionwww.themegallery.comSkimmingListen and match the main ideas: Explain how global warming comes about. List two different attitudes among scientists towards the consequences of global warming. Introduce a debate over global warming. It’s up to readers to think and decide whether people should do something about global warming or not.I
(1)II (2-3)III (4-8)IV (9)www.themegallery.comScanningMatch the parts with the writing skills: Using a question, leaving readers to think over the issue Raising a question Giving examples, making contrast (comparison) Giving examples, using graphs, explanationI
(1)II (2-3)III (4-8)IV (9)www.themegallery.comA greenhouse is made of glass and is used for growing plants, especially during cold weather.What is a greenhouse made of and used for?Part II(Para2-3)www.themegallery.comtraps the heat from the sunkeeps it from escapingheat upA greenhouseHow does it work?www.themegallery.com Fill in the blanks with the proper words according to the first letters given.henomenon uantitiesuels rapped esultingPart II(Para2-3)www.themegallery.comTip: You can know somebody’s opinion through understanding his
or what he said. What do Dr. Janice Foster and the scientist George Hambley think about the results of global warming?
Do they agree with one another? quotations(引言)
Part III(Para4-8)www.themegallery.comDr. Janice Foster thinks the effects of global warming could be very serious.
George Hambley thinks global warming will be mild with few bad environmental consequences. They don't agree with each other.
Part III(Para4-8)www.themegallery.comgo upcatastrophe very seriouspositiveproducea greater range of animalsThe different ideas between Dr. Janice Foster & George Hambleywww.themegallery.com2. Does global warming matter?ScanningPositive effects Negative effects www.themegallery.comcause the sea level to rise
severe storms
droughts
famines
the spread of diseases
destruction of speciesPositive effects Negative effects www.themegallery.comwww.themegallery.comcause the sea level to rise
severe storms
droughts
famines
the spread of diseases
destruction of speciesPositive effects Negative effects make plants grow faster
crops will produce more
a greater range of animals
make life better George Hambleywww.themegallery.comIdea-sharingWhat will global
warming bring to us
in your opinion?www.themegallery.com
True or falseRead the article carefully and finish exercise 2 on page 27www.themegallery.com1.The temperature last century didn’t increase much.
2.Everyone believes that global warming is caused by the activities of humans.
3.Janice Foster believes that global warming is caused by burning fossil fuels. F FTp1: … it is a rapid increase compared to most natural changes… P2: … there is fierce debate over it… www.themegallery.com4.Natural gas is a greenhouse gas.
5.Carbon dioxide is a byproduct of burning fossil fuels. F TP3: Fossil fuels: coal, natural gas and oil. 6.People accept Charles Keeling’s data because he took accurate measurements. Twww.themegallery.com7.Flooding could be one of the effects of future global warming.
8.George Hambley believes scientists are just guessing about the effects of global warming.
9.George Hambley is worried about the effects of carbon dioxide on plant growth.
10.It is clear what the effects of global warming will be. T T F FP10: positive P11: No one knows… P10: speculationwww.themegallery.com1. What is the purpose of the paragraph that is in bold?
To introduce the topic.To illustrate(阐述) points by providing evidence.2. What are the diagrams for?Third Reading www.themegallery.com3. Why are there two quotes?
Because they are important or interesting points and quite different.
Their aim is to attract your attention and to make you read them.www.themegallery.comIt functions as a conclusion by asking the reader to review the major theme of the text and to predict what might happen in the future. 4. What is the purpose of the last paragraph of the article?www.themegallery.comGlobal WarmingGraph describingA. We know that the levels of carbon dioxide have
increased greatly over the last 100 to 150 years. (Para 5)B. He found that, between these years, the carbon dioxide
content of the atmosphere went up from around 315
parts per million to around 370 parts per million. (Para 5)The general trend or descriptionThe description of the detailWhat is the difference
between A and B??www.themegallery.comGlobal WarmingThe graph shows the changes of the tourist number from 1991 to 2,000. On the whole, the number increased steadily over this period. The number rose from 5000 in 1991 to more than 25,000 in 2001 when it reached its highest. It can be concluded from the graph that the town attracted more and more tourists during this period.Discovering topic general trend detailed information conclusion _________________________________________________________________
__________________________________________________________________________________________________________________________________
__________________________ _______________________________________
______________________________________________________________How is the graph described?www.themegallery.comGlobal WarmingHave a tryTopic: show, change
General trend: on the whole, increase steadily,
Detailed information: rise from…to…, reach its highest,
Coclusion: conclude, decrease fall lowestwww.themegallery.comWhat have you learned from the passage about global warming?
It is said that the climate is going to keep on warming for decades or century. Do you think that we should do nothing about it or not?Discussionwww.themegallery.comAssignment Prepare the language points of this passage and underline the important ones.
After remembering the vocabulary, do the exercise on Page 28.www.themegallery.comThank You !