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1、Lesson 1 Global Warming第一页，共27页。Environmental problems?air pollutionglobal warmingendangered animalswater pollutionsoil pollutionsandstormforestation noise pollutiondesertification第二页，共27页。http:/ What do you know about global warming?Brainstorming第三页，共27页。Raising the Earths temperature will cause su
2、bstantial melting of the polar ice caps which will then lead to a rise in the sea level and subsequent flooding of low-lying areas.第四页，共27页。Global warming will also change countries climates and cause huge food and water shortages. 第五页，共27页。Most environmentalists agree that global warming is an unna
3、tural phenomenon caused by the emissions from burning carbon fuels such as coal, oil and petrol; they call this the “greenhouse effect”.第六页，共27页。There have been several summits of governments to discuss this problem but many countries dont want to make changes to their factories and industrial works
4、 as this would cost them money.第七页，共27页。Which countries do you think contribute more to global warming?a) developed countriesb) developing countriesDeveloped countries more industry and technology.第八页，共27页。Part IIPre-readingCan we take the heat?第九页，共27页。Guessing: Based on the title and the following
5、 pictures, can you guess whats the meaning of the word “take”? Pre-reading第十页，共27页。Question: What is global warming?Global warming means an average increase in the Earths temperature which leads to climate change.While-reading: Skimming第十一页，共27页。Read the text and find main idea of each paragraph.A.
6、Draw readers attention to the topic by asking questions. B. What should human beings do. C. What is global warming. D. Consequences of global warming. E. What cause global warmingPara 1.Para 2.Para 3.Para 4.Para 5.While-reading: Skimming第十二页，共27页。consensus, bounce, agriculture, coincidence, condemn,
7、 reservation, sacrifice, advocateScan the text below for these words and work out their meanings.Scanning:第十三页，共27页。Scan the text below for these words and work out their meanings.consensusbounceagriculturecoincidencea remarkable concurrence of events by chancemove quickly up, back, or away from a s
8、urface after hittinga general agreementthe science or practice of farming第十四页，共27页。condemnreservationsacrificeadvocatethe action of reserving something to recommend or support publiclyto give up (something important or valued) because of other considerations sentence to a particular punishment, espe
9、cially death 第十五页，共27页。1. What human activities are causing global warming?2. By how much has the global average temperature increased in the last 100 years?3. Are greenhouse gases necessary for life on Earth?4. How can we help solve the problem of global warming?Read the text and answer the questio
10、ns.第十六页，共27页。1) What human activities are causing global warming?Industry, agriculture, the cutting down of forests, the increase in transport and the burning of fuels are causing global warming.2) By how much has the global average temperature increased in the last 10 years?By 1F ( one degree Fahre
11、nheit).第十七页，共27页。3) Are greenhouse gases necessary for life on Earth?Yes, they are, because they trap heat from the sun in the Earths atmosphere. Otherwise the Earth would be cold and unsuitable for life.4) How can we help solve the problem of global warming?We can make small changes like taking pub
12、lic transport, recycling, using low-flow shower heads, and buying energy-efficient light bulbs to help stop global warming.第十八页，共27页。Post reading: Group workVoice your opinions:What will you do everyday to help reduce greenhouse gases?第十九页，共27页。take public transport like buses，trainstrainsand subway
13、s and subways Examples 第二十页，共27页。The recycling symbol buy the recycled products第二十一页，共27页。use low-flow shower headsbuy energy-efficient light bulbs第二十二页，共27页。Post reading: Group workVoice your opinions:What will you do everyday to help reduce greenhouse gases?第二十三页，共27页。Post-reading: vocabularyUse t
14、he expressions in the box in the correct form to complete the sentences.1 Water was the fish pond from the river.2 We all need to to finish in time!pumped intospeed upbeyond our control, pump into, as a result of, in large quantities, refer to, speed up第二十四页，共27页。3.There is nothing more we can do .t
15、he situation is now .4. the accident, she is now afraid of water.5. The scientist global warming at least three times in his speech.6. The factory was producing greenhouse gases _ .beyond our controlAs a result ofreferred toin large quantities第二十五页，共27页。Write a composition about how can we solve the problem of global warming? (120-150 words) (In your essay, it should include the reasons, the effect and measures of global warming)Homework:第二十六页，共27页。第二十七页，共27页。
