人教版高中英语选修六UNIT4reading

1、会计学1人教版高中英语选修六人教版高中英语选修六UNIT4readingenergy sources We depend on energy to do many things in our daily lives. For example, energy lights our cities and heats our buildings. Make a list of things that use energy in your home, in your school, or any other places you can think of. stove light things tha

2、t use energy in your home micro-wave oven cassette player heating television hairdryer video player fridge computer washing machine stovethings that use energy in our life heating hairdryer fridge televisionthings that use energy in our life washing machine electromagnetic oven electric fanDo you kn

3、ow how energy is produced?How many sources of energy can you list?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 energ

4、y 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 dams Di

5、scussionRenewableAre they renewable or non-renewable?wind energy renewablesolar energy renewable hydroelectric power renewablegeothermal energyrenewable tidal energy renewable biomass energyrenewableFossil fuels Non-renewablenuclear power plant non-renewablean oil refinery(精炼厂精炼厂) non-renewablecoal

6、power station non-renewablenatural gasnon-renewableuranium Ore (铀矿石铀矿石)non-renewable1. Have you ever seen a greenhouse?is made of glass used for growing plants, especially during cold weather.2. How does the greenhouse work?4. Greenhouse EffectGlobal warmingGreenhouse gases trapped the heat from the

7、 sun, which causes the temperature of earth goes up. The Earth Is The Earth Is Becoming Warmer Becoming Warmer But Does It But Does It Matter?Matter? Scanning Reading tips skim the title and Para 1: Title: THE EARTH IS BECOMING WARMER BUT DOES IT MATTER?Para 1: how has this come about and does it ma

8、tter?What are the two graphs about?Graph 1 shows the temperature difference (温度差温度差异异) from 1860 to 2000.Graph 2 shows the carbon dioxide content(二二氧化碳含量氧化碳含量) in the atmosphere from 1957 to 1997.Graph 1:Graph 2:1) How many paragraphs does the reading text consist of? Please find out the topic sente

9、nce of each para.Read the passage quickly (3)2) Make a division of the text.Fast-Reading1. the topic sentences of each paragraph. So how has this come about and does it matter? that it is human activity that has caused this global warming rather than a random but natural phenomenon. All scientists s

10、ubscribe to the view that the increase in the earths temperature is due to the burning of fossil fuels like. the levels of carbon dioxide have increased greatly over the last 100 to 150 years. it is the burning of more and more fossil fuels that has resulted in this increase in carbon dioxide. the a

11、ttitudes of scientists towards this rise are completely different. No one knows the effects of global warming. Does that mean we should do nothing? agreeled tohappenParagraph 1Paragraphs 2&5Paragraph 6Part1Part2Part42.Main idea of each partPart3Paragraph 7How global warming comes about? (全球变暖是怎样

12、产生的全球变暖是怎样产生的)Two different opinions about global warming.The earth is becoming warmer.Should we do anything? Reading tips: In English, some nouns begin with a capital letter(大写字母大写字母), such as names of people and places, titles(标题标题) of magazines, newspapers, stories and books, peoples titles(头衔头衔)

13、, etc.global warmingPara.2 Human activity has caused global warming.Para.3 The increase of temperature is due to the burning of fossil fuels.Para.4 The levels of carbon dioxide have increased greatly.Para.5 The burning of more and more fossil fuels has resulted in the increase of carbon dioxide.=Thi

14、s increase in carbon dioxide has resulted from the burning of more and more fossil fuels.Dr Foster George HamblyAttitudeReasonsThe trend which increase the temperature by 5 degrees would be a catastrophe.They are opposed to the view and believe that we should not worry about high levels of carbon di

15、oxide in the air.There may be a rise of several meters in the sea level, or predict severe storms, floods droughts, famines, the spread of disease and the disappearance of species.It will make plants grow quicker; crops will produce more; It will encourage a greater range of animals- all of which wi

16、ll make life for human beings better.Choices: to do sth. or not1. It is the burning of more and more fossil fuels like coal, natural gas and oil that is resulting in this increase in the earths temperature. 2. The earth is becoming warmer. 3. An increase of five degrees in the amount of warming woul

17、d be a catastrophe .4. Any warming will be mild with few bad environmental consequences. 5. Greenhouse gases continue to build up in the atmosphere.Fact or Opinion?( O )( F )( O)( O )( F )Choose the best answers.1.Who found out the amount of carbon dioxide in the atmosphere from 1957 to 1997?A. Dr.

18、Janice Foster. B. Charles Keeling.C. George Hambley. D. Sophie Armstrong.2.What is NOT true according to the passage?A.The rise in carbon dioxide is causing an increase in global warming.B. Everyone believes that global warming is caused by the activities of human.C. George Hambley believes that glo

19、bal warming will do good to the earth.D. It is clear what the effects of global warming will be.Step V Summary The earth is becoming warm and all scientists _ _ the view that the increase in the earths temperature is due to the burning of _. Some _ of this process are called _, the most important on

20、e 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 atmo

21、sphere went up from around subscribe tofuelsgreenhouse gasesbyproductscarbon dioxidequantities oftendsgo upfossil315 parts to around 370 parts _ million in 40 years. All scientists accept the date and agree the burning of more and more fossil fuels 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 _ this view,