Unit1SavingtheEarth

air pollutionland pollution water pollutioncutting down . n. an article in a newspaper or magazinen that gives an opinon about a new book,play ,film etc.v. go over书评，影评Tony Ma wrote a review about the book.variousthreats save the Earth/vers/ adj. /ret/ n. The _ effectDamage to the _ layer O 3 层B_ _D_ of the forests (destroy)1 Threatsgreenhouseozone estructionad habits2 3 4n.温室 a glass building used for growing plants that need warmth,light and protection./zn/ n. /tmsf(r)/ n.The writers ask us to imagine that the Earth is inside a kind of greenhouse with the atmosphere around it. The atmosphere acts like the glass: it lets sunlight in and keeps warm from getting out. The atmosphere is essential for all living things. Without it, the Earth would be as cold and life as the surface of the moon.The trouble is that our atmosphere is changing because we are polluting it with chemicalsin the form of gasesand it is keeping in too much heat!1.Whats the use of the atmosphere? 2.Why is the atmosphere essential for all living things?3. Whats the problem with our atmosphere? Threat Causes Bad effectsThe Greenhouse effect chemicals- in the form of gases (mainly CO 2) 1.cause the level of the sea to rise2. flood cities and even whole countriesco2-carbon dioxide/k:bn daksad/factories , carsbe produced by burning fuels flood n. 洪水 v.（使）灌满水，淹没 Which threat makes ? Threat Causes Bad effectsDestruction of the forests forest fires cut down trees 1.make the greenhouse effect worse2.cause soil erosion and flooding3.destroy the homes of people and animals that live in the forestsTrees take in CO2. . Damage to the ozone layer part. a gas which occurs(1)_ to (2)_ km above the grounda (3)_ layer that prevents the Sun from (4)_ us up This is a (5)_ in the layer which is mainly caused by CFCs. They are used in (6)_ and spray cans, and to make (7)_ _ like fast food boxes.What information do you want to get from this part?Threat Causes Bad effectsDamage to the ozone layer use chemicals called CFCs 1.make holes in the ozone layer2.the sun would burn us up塑料物品 massive mountains of rubbish Bad habitsThreat Causes Bad effectsBad habit 1.use things once and then throw them away2. dont know what to do with the rubbish it pollutes our land and sea How can we save the Earth?The book is asking us to become green consumers. That means we should only buy and use environmentally friendly goods so that we can save the Earth. These goods will not damage the environment.Lets be green consumers and enjoy living a better life on the Earth! Threats Causes Bad effectThe greenhouse effect mainly CO 2 1.sea level2. flood cities, countriesDamage to the ozone layer CFCsplastic items 1.holes in the ozone layer2. .burn us upDestruction of the forests forest firescut down trees 1. make . worse2.soil erosion , flooding3. homelessBad habits waste.do with. pollute land ,seaWe should.Wed better (not ). 1. Read the text aloud at least three times and make sure to pronounce the words correctly. 2.Finish the poster “My green promise”and try to use the information from the text.My Green PromiseOur world is _. To change the s_ situation we must become_.I promise that I will always_,_ and _.I will _ instead of_._ is bad for our Earth. So I will never _._.In a word , I will t_ my b_ to save our Earth. I will only buy and use _ goods. These are my promises I will always keep. Sign here_