人与自然的关系.ppt

Relationship between human and nature People come from nature Human evolution First, Human beings come from nature, This is a picture of human evolution, We should remember this, Without nature, there is no human The contribution of nature to human beings Air Water Besides, Nature provide us with all aspects of resources for the survival of mankind , Such as air, water, food and so on, we should appreciate it. The contribution of nature to human beings Trees Food Though nature give us a lot of things, what did we do with nature? Nowadays,our earth has been seriously polluted.Pollution has a long history.People have been polluting the earth from the time when they first made fire,washed his colthes in the river,and threw waste on theground.When the land was made thin and the water became dirty, people moved to another place. The destruction of nature At first,the problem was not so serious because there was plenty of clean air, land and water.There werent so many people back then and thier needs were fewer.All the dirty things could be absorbed by nature and recovered soon.But this is no longer true.The increasing population and the developing industry have changed it a lot.People are slowly poisoning the invironment. As we know, environmental pollution does great harm to human beings.It begins to attack our health,our happiness,and our lives,so it must attract our attention.Now more and more people have realized how seious the problem is. Fortunately,our goverment is doing its best to take measures to fight against pollution.We have done a great deal of work,but there is still a long way to go.We must keep on fighting until the environment improves and we get away from pollution.We are sure that we will win the battle. Every year on June 5, the world environment day. Dear classmates, protect the environment starts from the side! Through the ages, the earth mother with sweet milk feeding countless generations. But, now human to its own interest