植树节 Microsoft PowerPoint 幻灯片.ppt

1、The Arbor Day,The importance of planting trees,We are not alone in the world .We human beings could not survive without all the plants around us.As we all known,the forest is called as the lung of the earth.Forest can produce much oxygen.So we can breath.As results of severe deforestation by human b

2、eings,the greenhouse effect appears.The global warming becomes more and more serious,the sea level is rising and the ecological balance is damaged.So our security is threatened.,These phenomenons should be taken seriously .If we want to live a better life and have a bright future,we must take measur

3、es to protect plants.,The importance of planting trees,The Chinas Arbor Day,The Arbor Day is a festival that some countries make laws to publicized forests benefit and encourage people to join the tree planting activities. Many countries have traditions to hold a yearly tree or forest festival.In an

4、cient China,people cultivate plants during the Tomb-sweeping Day.The official Arbor Day in China is on march 12th,which is to commemorate the passing away of a great man in China,Sun Yat-sen,who made tremendous contribution to the democratic revolution in China.,Tomb-sweeping Day,Sun-Yat-Sen,The Ame

5、ricans Arbor Day,The Americans Arbor Day is on April 10th.It was observed in Nebraska in 1872.On Arbor Day,They celebrate it in many different ways. By planting trees in school grounds,along neighbouring streets or in city parks.,The Americans Arbor Day,By taking some activities,such as going on a v

6、isit to a bush area to learn the characteristics of plants species.A mericans treasured plants very much and everyone behaved with great enthusiasm during the Arbor Day.So the Americas forest coverage has a high rate.,The Americans Arbor Day,The Americans Arbor Day,celebrate the Arbor Day we are mak

7、ing the differences,People do a lot of activities to celebrate the Arbor Day in China.Every spring,they buy many saplings to plant around their houses or on the field.,Many schools organise the teacher and students to plant trees,what am I doing,I have been taught the importance of environmental pro

8、tection and the benefit of trees since I was in primary school. I had planted some trees with my father on Arbor Day and they grow well.,I am also doing,I also do a lot to save trees.I never use disposable chopsticks and use less papper.when I go to shoping. I always use my own bags which are made of cloth.,THE AMAZING FACT,Nowadays,many of the earth trees have already died out. With the development of industry and economy,people ignore the ecological balance and many tre