银川九中高二2班_unit4_global_warming_来冬梅

1、Unit 4Warming up and readingGlobal warmingWarming up 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. things that use ener

2、gy in our life heating hairdryer fridge televisionthings that use energy in our life washing machine electromagnetic oven electric fanDo you know how energy is produced?How many sources of energy can you list?Wind energy is used as power to produce electricity. windmillsElectricity is produced by bu

3、rning coals.coal power stationsOil is refined and made pure. oil refineriesNuclear energy is converted into electricity.nuclear power plantpieces of equipment on a roof that collects energy from sunlight in order to heat water and produce electricity solar panelsWater are kept back and raised its le

4、vel for irrigation or for producing electricity.hydro-electric damsgeothermal (地热的地热的) energy plantElectricity is generated from hot dry rocks.Are they renewable or non-renewable?wind energy renewablesolar energy renewable hydroelectric power renewablegeothermal energyrenewable tidal energy renewabl

5、e biomass energyrenewablenuclear power plant non-renewablean oil refinery(精炼厂精炼厂) non-renewablecoal power station non-renewablenatural gasnon-renewableuranium Ore (铀矿石铀矿石)non-renewableWhat is the building made of and what is it used for? It is made of glass and plants can grow in it when the weather

6、 is cold outside.Have you ever seen a greenhouse?How does it work?The air inside is warm because the glass trap the heat from the sun and keeps it from escaping. This makes the greenhouse heat up and so the plants can grow throughout the cold period.What are the “greenhouse gases”? What do you think

7、 greenhouse gases do?Whats greenhouse effect?Greenhouse gases perform the same function as the glass in a greenhouse - they trap the heat of the sun and keep the air surrounding the earth warm.greenhouse effectGlobal warming / The warming of the earth.Skim the text and find out the main topic of the

8、 article.Read the text and answer the questions:1. Who wrote the magazine article? What is the name of the magazine?2. What are the names of the three scientists mentioned in the article?3. What do they think about global warming? Do they agree with one another?4. What are the two graphs about?5. Wh

9、at is the main topic of the article?Sophie Armstrong wrote the magazine article. The name of the magazine is “Earth care”.2. What are the names of the three scientists mentioned in the article?They are Dr. Janice Foster, Charles Keeling and George Hambley.1. Who wrote the magazine article? What is t

10、he name of the magazine?3. What do they think about global warming? Do they agree with one another?There are some very different attitudes among scientists towards this issue. Some think the effects will be terrible, while some others believe that we should not worry about it. 4. What are the two gr

11、aphs about?Graph 1 shows the temperature increase of one degree Fahrenheit between 1860 to 2000.Graph 2 shows the carbon dioxide content in the atmosphere from 1957 to 1997.Choose the best answers.1.Who found out the amount of carbon dioxide in the atmosphere from 1957 to 1997?A. Dr. Janice Foster.

12、B. Charles Keeling.C. George Hambley. D. Sophie Armstrong.2. The author probably agrees that _. A. actually global warming is good for manB. we should do nothing about the global warmingC. catastrophes will happen if the globe keeps on warmingD. a lot remains to be found out about the effects of glo

13、bal warming.1. The temperature last century didnt increase much.2. Everyone believes that global warming is caused by the activities of humans.3. Janice Foster believes that she can measure the future global rise in temperature.True or false 4. The rise in carbon dioxide is causing a steady increase

14、 in global warming.5. George Hambley believes that global warming will do good rather than harm to the earth.6. It is clear what the effects of global warming will be. Construction Introduce a debate over the issue of global warming. Main idea of each partHow global warming comes about.List two diff

15、erent attitudes among scientists towards global warming.Its up to readers to think and decide whether people should do something about global warming or not.A: We shall do something about global warming.B: We shall do nothing about global warming.DebateIt has a title, a first paragraph that runs acr

16、oss the page and is in bold, the main text in two columns, graphs /diagrams, two quotes.What is the structure of a magazine like this and how is the text organized? What is the purpose of the first paragraph?To introduce the topic.What are the diagrams for?To illustrate points by providing evidence.

17、Global warmingUnit 4Ouyang Guang and the editor of Earth Care.Who are the writers of the letters?Whats the purpose of Ouyang Guangs letter? To get some suggestions from Earth Care about global warming.Read the first letter and answer the questions.What are Ouyang Guangs two concerns? The second is t

18、hat he is not sure where to start with his project.The first is that he feels that individual cannot have effect on huge environmental problems. Which is not the reason why Ouyang Guang writes the letter?A. He is doing a project on global warming.B. He feels individuals can affect huge environmental

19、 problems.C. He isnt sure where to start with his project.D. He wants to get some suggestions from Earth Care.Does Earth Care agree with Ouyang Guangs opinion that individuals can have no effect? Why?Read the second letter and answer the questions.Which is not true according to the editors letter?A.

20、Together, individuals can make a difference to environmental problems.B. Individuals must put up with pollution.C. Many activities individuals do can produce carbon dioxide.D. Individuals can save energy to slow down global warming.Earth Care s suggestionsCan you carry it out?ReasonsIn pairs make a poster for your school that tells students various ways they can reduce the amount of carbon dioxide in the air.Fight global warmingCut down