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1、Lesson 1 Global Warming,Environmental problems?,air pollution,global warming,endangered animals,water pollution,soil pollution,sandstorm,forestation,noise pollution,desertification,warm-up,Question: What do you know about global warming?,Brainstorming,Raising the Earths temperature will cause substa
2、ntial melting of the polar ice caps which will then lead to a rise in the sea level and subsequent flooding of low-lying areas.,Global warming will also change countries climates and cause huge food and water shortages.,Most environmentalists agree that global warming is an unnatural phenomenon caus
3、ed by the emissions from burning carbon fuels such as coal, oil and petrol; they call this the “greenhouse effect”.,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 as this would cost them mone
4、y.,Which countries do you think contribute more to global warming?,a) developed countries b) developing countries,Developed countries more industry and technology.,Can we take the heat?,Guessing: Based on the title and the following pictures, can you guess whats the meaning of the word “take”?,Pre-r
5、eading,Question: What is global warming?,Global warming means an average increase in the Earths temperature which leads to climate change.,While-reading: Skimming,Read the text and find main idea of each paragraph.,A. Draw readers attention to the topic by asking questions. B. What should human bein
6、gs do. C. What is global warming. D. Consequences of global warming. E. What cause global warming,Para 1. Para 2. Para 3. Para 4. Para 5.,While-reading: Skimming,consensus, bounce, agriculture, coincidence, condemn, reservation, sacrifice, advocate,Scan the text below for these words and work out th
7、eir meanings.,Scanning:,Scan the text below for these words and work out their meanings.,consensus bounce agriculture coincidence,a remarkable concurrence of events by chance move quickly up, back, or away from a surface after hitting a general agreement the science or practice of farming,condemn re
8、servation sacrifice advocate,the action of reserving something to recommend or support publicly to give up (something important or valued) because of other considerations sentence to a particular punishment, especially death,1. What human activities are causing global warming? 2. By how much has the
9、 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 questions.,1) What human activities are causing global warming?,Industry, agriculture, the cutting do
10、wn 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 Fahrenheit).,3) Are greenhouse gases necessary for life on Earth?,Yes, they are, because they trap heat f
11、rom 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 public transport, recycling, using low-flow shower heads, and buying energy-efficient light bulbs to help sto
12、p global warming.,Post reading: Group work,Voice your opinions:,What will you do everyday to help reduce greenhouse gases?,take public transport like buses，trains and subways,Examples,The recycling symbol,buy the recycled products,use low-flow shower heads,buy energy-efficient light bulbs,Post readi
13、ng: Group work,Voice your opinions:,What will you do everyday to help reduce greenhouse gases?,Post-reading: vocabulary,Use the 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 into,speed up,bey
14、ond our control, pump into, as a result of, in large quantities, refer to, speed up,3.There is nothing more we can do .the 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 control,As a result of,referred to,in large quantities,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:,