人教版高二英语选修六课件:Unit4 Global warming reading(共22张PPT)

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名称 人教版高二英语选修六课件:Unit4 Global warming reading(共22张PPT)
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科目 英语
更新时间 2020-04-22 17:21:11

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课件22张PPT。Unit 4Global warming ----
Does it matter 预习检测I. Enjoy translation
try to sleep in spite of the noise.
Don’t get into the habit of smoking.
I think his success was due to his healthy life.
Have you decided on going to America for further education? II. Skim the passage on page 26-27 tofind the bold (黑体字) word or phrase that can complete the blanks.1. are opposed to 2. subscribed to
3. compared to 4. came about
5. states 6. even if
7. quantities of 8. kept on
9. build up 10. result inFast reading
What is mainly discussed in the text ?
A. Carbon dioxide
B. Water vapour
C. Gases in the atmosphere
D. Temperature increaseAccording to the text, which of the following statement is not true?
A. Carbon dioxide is a byproduct of the burning of fossil fuels
B. All the scientists agree that the burning of more and more fossil fuels leads to the increase of carbon dioxide
C. If we stop adding carbon dioxide and other greenhouse gases from now on, the temperature will stop going up
D. It is still not clear what the effect of global warming will be.
George Hambley thinks that more carbon dioxide _________
A. may lead to a catastrophe
B. will do good rather than harm to the earth
C. will cause the spread of diseases
D. will encourage a greater range of animals, thus threatening human beings.By asking the two questions at the end of the article, the writer implies that ___
A. we can do nothing about global warming
B. global warming is caused by human beings
C. we should not be too worried about global warming
D. human beings still have more worries about the effect of global warmingWhat will happen if we do nothing about global warming?
A. It would cause the sea level to rise, storms, droughts, famines and so on
B. The temperature will be surely lower
C. It doesn’t matter
D. It has nothing to do with me.Deep--reading 1. How has the global warming come about?
成果展示:①__________________________

___________________________

____________________________
Human activityGreenhouse effect--- greenhouse gasesHuge quantities of extra carbon dioxide---from 1957 to 1997---from around 315 parts per million to around 370 parts per million.2. What are the effects of global warming?
成果展示: ①
_____________________________

______________________________
The sea level to rise.Severe storms, droughts, famines, the spread of diseases, and destruction of species.Make plants grow faster. Crops will produce more. Encourage a greater range of animals.
III . The different ideas between Dr. Janice Foster & George HambleycatastropherisefloodDisappearance of speciesmildconsequencepositive IV. divide the passage into 4 parts
and match the main idea of each part. (1)llustrate how global warming comes about
(2)List two different attitudes among scientists towards
global warming
(3)Introduce a debate over the issue of global warming
(4)It’s up to readers to think and decide whether people
should do sth about global warming or notPart1 (para.1)Part2(para.2-5)Part3(para.6)Part4(para.7)Wind energy is used as power to
produce electricity . Windmillswhere electricity is produced by burning coals.The coal power stationsin which oil is refined and made pure. The Oil Refineriesa facility designed to convert nuclear energy into electricity. A nuclear power plant on the roof of a house on a bright sunny day are used to collect solar energy, making your house warm or heating your water.Solar panelsare used to keep back water and raise its level for irrigation or for producing electricity, etc.The Hydro-electric damsHow does it work?The glass traps the heat from the sun, making the air warm so that plants can grow better.Step V Summary The earth is becoming warming and all scientists _________ ____ the view that the increase in the earth’s temperature is due to the burning of fossil _______. Some _________ of this process are called ____________ gases, the most important one of which is __________________. We need these gases, but the problem begins when we add huge _______________ extra carbon dioxide into the atmosphere. It means that more heat energy ________ to be trapped in the atmosphere causing the global temperature to ___________.
A scientist called Charles Keeling found that the carbon dioxide in the atmosphere went up from around subscribe tofuelsgreenhousebyproductscarbon dioxidequantities oftendsgo up315 parts to around 370 parts __________ million in 40 years. All scientists accept the date and agree the burning or more and more fossil fuels that has _____________ this increase.
However, the attitude of scientists towards this rise is completely different. On the one hand, Dr. Foster thinks that the __________ which increases the temperature by 5 degrees would be a _____________. On the other hand, George Hambley, who are _________________ this view, believe that we should not worry about high levels of carbon dioxide in the air. They predict that any warming will be ________ with few bad environmental _____________. But no one really knows the effects of global warming.
perresulted in trendcatastropheopposed tomildconsequences有效训练CCBBA BCABB