英语演讲-Environmental Protection.pptVIP

Environmental Protection Main Points: 1 Why we should protect the environment 2 The present situation of the environment 3 The measures to protect the environment We affect the world around us with science and technology as powerful tools. However it is true that the advancement of science and technology have brought us environmental pollution. 1.Why We Should Protect The Environment: Water is the source for lives.(水是生命之源) We can’t live without fresh water. Air and trees is indispensable to life. There is about one-fifth oxygen in the air. We consume oxygen, and release carbon dioxide. Without the air, we can’t live. Trees consume carbon dioxide and release oxygen, also it can beauty the world. Aspects said that We live in a closed interrelated system. all life is connected through the medium of water and 99 molecules out of a hundred ,in most living things is water . Animals, plants, and us water in constant motion. Contaminate(弄脏，污染) water ,contaminate the environment ,in the end we contaminate ourselves. As we only have one earth, we should try our best to protect the environment in order to protect the earth—our only home. 2.The Present Situation Of The Environment Due to massive pollution and over-development in recent years, the Earth has gradually lost its original characteristics. Climate changes, natural disasters and the greenhouse effect are regarded as the Earth’s response to this attack. Air Pollution: Nowadays as more and more cars are being produced and put into use, more and more harmful gases are released into the air, so the air is infected with noisome gases which are bad for humans’ health. Because there are more and more fac