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1、Warming-up How long do they live? Match the items on the left with the average ages on the right.abcedmicetreestortoiseswhalespeopleiiiIiiivv70 years150 years40 years4,000 years3 yearsTrees are the oldest living things on Earth.In this unit, we are going to talk about another of In this unit, we are
2、 going to talk about another of mans best friends on Earth, trees.mans best friends on Earth, trees.Background knowledgeHow much do you know about trees? Try the short quiz below. fruitbranchleafrootPre-readingLook at the pictures on page 45. Then answer the question below. Do we need more or fewer
3、trees in Guangzhou? More?Pre-readingkeep the air cool and cleantake in harmful gases produce oxygen for people to breatheFewer?Before you readLook at the title of the interview on page 45. Then answer the question below. What can we get from trees?paperpencilschairsIn fact, we get a lot more from tr
4、ees.ReadingWhy are trees major fighters against air pollution?Comprehension They keep the air cool and clean. They take in harmful gases from the air. They produce oxygen for us to breathe.What can we get from trees? paperpencilsFruitOil Tea and furnitureHow many trees do people cut down every year?
5、People cut down millions of trees every year.air pollutioncool and cleanharmful gasesmore convenientcome from treesmade of woodD1 Read the interview on Page 47 and complete the notes below.Vocabularyproduce produce againstagainstfurniturefurnitureconvenientconvenientmajormajorFacts about treesTopic
6、sentencesTrees are really in our daily lives. They help us in many ways.Useful treesProducts from treesTrees in dangerFactsPeople cut down trees every year.What to do?We should stop so many trees.importantmillions ofcutting downfruit and oilpapers and pencilstea and furnitureoxygenPost-reading: Grou
7、p discussion Why does Rebecca say “I cant imagine a world without trees”？Because: * very important in our daily lives * keep * take in and produce * major fighters * make /come from * get fromPost-reading Imagine if we dont protect the trees, What will happen?Imagine if we dont protect the trees,Wha
8、t will happen? If we dont save the trees: Our environment will become bad such as air pollution. Lead to disaster such as sand storm and typhoon. People will get the disease. In a word, do not save the trees is polluting the earth and our home. If we love trees, protect environment. Our environment
9、will become better and better. Trees are good for our health.Plant more trees and cut Plant more trees and cut less trees.less trees.( (多植树多植树, ,少砍树少砍树) )To promote the protection To promote the protection of trees approach.of trees approach.( (向身边的人宣传保护树的向身边的人宣传保护树的方法方法) )What should we do to save
10、the trees?When you write can use When you write can use both sides of paper.both sides of paper.( (当你写的时候可以用当你写的时候可以用纸的纸的两面两面) )Not to use disposable Not to use disposable wooden products wooden products ( (不用一次性的木制品不用一次性的木制品) )Dont strip the bark and not Dont strip the bark and not scribble carving on the scribble carving on the trees.trees.( (不剥树皮不剥树皮, ,不能在树上不能在树上乱涂乱涂乱刻乱刻) )Pre-reading1 What can we get from the trees(plants)? Complete the spidergram（网状说明）（网状说明） below.Things we get from trees that we can usedrinkeatwear
