Unit 4 Global Warming Period 1

of Average Temperature of Jiangxi Province from graph

Unit 4 Global Warming

Predicting 1.What can you infer from the title? 2.What are the two graphs about?

Scanning 1.Look for people’s names. Circle them with a red pen. ① Who wrote the magazine article? ② What are the names of the three scientists mentioned in the article? 2. Para. 1 & 2 ① What has caused global warming? What has caused global warming? ② Which sentence tells us what the writer will talk about in the article?

…it is human activity that has caused this global warming rather than a random but natural phenomenon. : happening accidentally a random but natural phenomenon: random droughts floods catastrophes result in consequence s subscribe to be opposed to

Human activity: ____________ the ________ in carbon dioxide more ____from the sun will be ______ the increase in the earth’s temperature the burning of fossil fuels result in How has this come about? increase heat trapped Para. 3, 4 &5 coal, natural gas &oil evidence from Charles Keeling the greenhouse effect degrees min. or 5 degrees max.

Does it matter? Read in pairs. Make a dialogue with your desk mate. Fill in the blanks concerning your reading part. Exchange information with your desk mate. One will speak as Janice Foster while the other as George Hambley. Follow the example in your paper. Para. 6

Janice Foster& supporters George Hambley& supporters Attitude Temperature increase would be a __________. We shouldn’t _______. Prediction It could be very _______.Any warming will be _____ with _____ bad environmental consequences. Possible consequen ces More carbon dioxide is _________,because __________________ __________________. sea level rise severe storms, floods, droughts, famines spread of diseases disappearance of species catastrophe positive mild few worry serious plants grow quicker  crops produce more  a greater range of animals  human life easier and better

Para. 7: Does it matter? 1. The writer probably thinks ________. A. It matters. B. It doesn’t matter. 2. What probably does the writer want us to do by the last two questions? We should conserve energy and protect the earth.

Group discussion: What can/should we do? At home/work/school Clothing /food/ housing/ transportation Policies, laws, finance Media, transportation, design of buildings You may also refer to the pictures on Page 25.

Turn off the light when leaving a room. Don’t leave the tap on when washing hands. Turn off the TV instead of leaving it on standby. Take a shower instead of a bath. Separate garbage. Use environment-friendly shopping bags. Walk or ride a bicycle or use the public transport instead of driving. Carpool. Buy small, fuel-efficient cars Reduce, reuse and recycle. Wear warm clothes instead of turning on the air conditioner. Plant a tree. Make a poster to educate people to conserve energy. Make laws to limit carbon emissions. Stop deforestation. Promote new forest growth. Promote recycling. Deal with waste properly. Promote the development of renewable energies. Fund related researches. Encourage public transportation. Encourage production of energy- efficient vehicles. Designate bus-only or bicycle-only lanes. Encourage the use or development of renewable energies. Encourage the construction of green buildings.

Homework 1.Read the text again and finish Comprehending 1&2 on Page Choose sides and prepare for a mini debate on whether we should something about global warming. You may refer to the following websites. ① ② page=5 page=5 ③ warming-positives-negatives.htm 3. Underline important words and phrases.

Good Not caused by man: part of a 1,500-year cycle of warming Bigger storms, famine, plagues and disease in the Little Ice Age. Wildlife can adapt well. Sea-levels not rising dramatically Growing season lengthened. A political hoax( 骗局 ). Bad Rise of sea level Flooding of low-lying cities. Melting of ice caps. More droughts and storms. Less drinking water. Disappearance of species. Spread of diseases. Countries suffering from huge economic losses.