选修6 Unit4 Global Warming全单元PPT精选文档

1、1,Unit 3 Global Warming,2,What is energy? What do we use it for?,heat , light , power, etc.,3,Where does the energy come from?,Sources of energy,Renewable ?,Non-Renewable?,4,Energy is necessary in our life. Sources of energy are endless, so we dont have to worry about it. There is no trouble caused

2、when we produce energy from the sources. We can switch to other sources of energy if one is run out.,Do you agree?,5,What is greenhouse?What does it do?,Where else do we see “greenhouse” effect?,6,THE EARTH IS BECOMING WARMERBUT DOES IT MATTER?,INTRODUCTION: Author _ Magazine _ Problem discussed_ Wh

3、at questions will the author explores?,Sophie Armstrong,Earth Care,Global warming,How has it come about? Does it matter?,Para 1-4,Para 5-6,7,Part 1: How has it come about?,Para 1 Para 2 Para 3 Para 4,How has the temperature increased? Who has done it? How has the Co2 developed? What has caused it,th

4、e topics of each paragraph,Who has done it? What has caused it？ How has the C02 developed? How has the temperature increased?,8,Humans,Burn fossil fuels,energy,“greenhouse” gases,Trap heat from the sun,The earth gets warm,“Greenhouse” Effect,9,True or False,Greenhouse effect does damage to the earth

5、 by warming it up. Greenhouse effect is due to human activities. Humans make the greenhouse effect more serious and therefore cause global warming.,F,F,T,How?,10,What researches have been done?,About the researches: What are the results of each research? Are they related? How? What the future temper

6、ature will be like?,CO,/,CO2 went up. Temperature increased.,They are positively /directly related.,It is uncertain yet.,11,Part2: Does it matter?,Negative effects,Predictor_ _ temperature increase (maybe by_ degree.) Lead to _ A _future,Positive effects,Predictor_ _ warming; _ environmental consequ

7、ence; A_ future,Janice Foster,5,a catastrophe,George Hambley,mild,With few bad,Positive /better,great,Negative /worse,12,Thinking after reading:,Which idea do you believe about global warming and its effects? Why? Is there anything we can do about global warming? If the warming seems hard to slow do

8、wn no matter what we do, will you keep on saving energy or reduce CO2?,13,Films recommended:,难以忽视的真相 愚蠢年代 全球变暖大骗局,14,Useful language points,Useful phrases,Consume energy / Come about Explore the questions A random phenomenon Make accurate measurement of Result in/lead to Be opposed to (opposite, opp

9、onent) Even if(though) Keep on(carry on) On the one handOn the other hand,Useful words,Graph; data Subscribe to Fossil Fuel Byproducts Quantity/range Tend to Trend Catastrophe Consequence State Mild(反violent),15,Consume,Martha would consume nearly a pound of cheese per day. Some of the most efficien

10、t microwave consume 70 percent less electricity than traditional models. New information devices, like computer, Ipad or smart phone, have changed the way people consume books.,16,subscribe,vi. 持有或者同意（某种观点） Ive personally never subscribed to the view that either sex is superior to the other. vi. 订阅（

11、书报杂志服务等） My reason for subscribing to New Scientist is to keep step with advances in science. 翻译练习 有很多杂志你可以订阅来提高阅读能力。 There are many magazines to which you can subscribe to improve your reading ability.,17,fuel,n. 燃料；刺激因素 Running out of fuel, the car broke down . Her stress is also her fuel to push

12、her forward. v. 得到燃料; 供以燃料，加燃料 They stopped at the petrol station to fuel up. Winning the prize fueled his enthusiasm about photography. 同根词：refuel,18,Quantity,Doctors do encourage a quantity of exercises, but they also insist on a balanced diet. Now large quantities of shopping are made through the

13、 internet. You can be offered a lower price if you buy their goods in quantity.,19,tend,People subscribe to the view that the fat tend to eat more. Most people tend to be friends with those who are similar to themselves. As to whether global warming would lead to catastrophe, most people tend to/tow

14、ards the negative viewpoint. Kids have a natural tendency to believe their parents.,20,consequence,The consequence of long-term air pollution is that more people suffer from lung cancer. Parents and adolescents tends to hold different views. Consequently/As a consequence, they often argue with each

15、other. Dont think you can get drunk with few bad consequences. The storm died down, with the consequence that a whole city lay in ruins.,21,state,N. area or country N. Situation or condition V. to speak formally Leaders of the states are meeting in Louisville. The old house is in a risky state. The

16、police stated that he was arrested for abusing power. 派生词 statement,22,It 用法 （II）强调句,结构：It is that.(/who) 作用：强调句子中某成分：主语、宾语, 状语 特点：对原句结构时态和意义不产生影响。 It is human activities that have led to global warming.=_ It is the burning of fossil fuels that has resulted in the increase in temperature.= _,Human a

17、ctivities have led to global warming.,The burning of fossil fuels has resulted in the increase in temperature.,23,It is how we consume energy that has to be improved. It is the heat from the sun that we need to warm up. It was Linda that/who/whom I was talking to over the phone. It was beside the ri

18、ver that I last saw her alone. It was yesterday not last week that we had the meeting. Why do you forget it so fast? It was not until you grow up that you will understand you parents. It was where you took the photo that I had traveled last year. 书后练习page 29,24,强调句的疑问格式及回答,-Was it you that called th

19、e police?-_ Is it the greenhouse effect that has resulted in the temperature increase?-_ -Was it in the US that we met each other for the first time?-_,25,-Where was it that you got the watch?-_ How is it that the Global warming comes about ? -_ Who was it that you were talking to over the phone?-_ 句型转换练习：周报15-A3, A4,2020/7/8,26,强调句和定语从句的区别,1.It was ten oclock he came back. 2.It was at ten oclock he came back. A. that B. when C. so D. which 3. It is autumn leaves fall. 4. It is in autumn leaves fall. A. that B. when C. s