高中英语 unit 4 reading课件 新人教版选修6

1、Unit 4Global warming -Does it matter预习检测预习检测 I. Enjoy translation try to sleep in spite of the noise. Dont 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

2、体字黑体字) 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 atmospher

3、e D. Temperature increase According to the text, which of the following statement is not true？A. Carbon dioxide is a byproduct of the burning of fossil fuelsB. All the scientists agree that the burning of more and more fossil fuels leads to the increase of carbon dioxideC. If we stop adding carbon d

4、ioxide and other greenhouse gases from now on, the temperature will stop going upD. 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 catastropheB. will do good rather than harm to the earthC. will cause the spread of dis

5、easesD. 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 warmingB. global warming is caused by human beingsC. we should not be too worried about global warmingD.

6、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 onB. The temperature will be surely lowerC. It doesnt matterD. It has nothing to do with me.Deep-re

7、ading1. How has the global warming come about? 成果展示：成果展示：_ _ _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：成果展示： _ _The sea

8、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 Hambley Dr. Janice FosterGeorge HambleyThe trend

9、would be a _ A _ of several meters in the sea level,or sever storms, _, droughts, famines, the spread of diseases and the _Any warming will be _ with few bad environmental _. More carbon dioxide is actually a _thing, .all of which will make life for human beings better. catastropherisefloodDisappear

10、ance 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)Its up to reade

11、rs 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

12、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 irr

13、igation 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 earths temperature is due

14、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 te

15、mperature 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 o

16、r 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 wo