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(就素材號召同學(xué)們行動起來積極應(yīng)對地球變暖) Dear fellow students, It is reported that the average temperature within the Arctic Circle has risen by 2—3 degrees Celsius in the past ten years. At the Copenhagen Climate Summit 2009 all nations were required to reduce the greenhouse gas emission to save the earth. At the beginning of 2010, extremely cold weather hit Asia, Europe, and North America, which is the evidence of global warming. As is known to all, our environment has been worsening due to human activities. If we don’t take effective measures now, human beings will not be able to survive in the future. If we can save energy, recycle waste and plant more trees, we can make the earth a better place. So let’s take action from now on! let’s save the earth.作文八Ladies and Gentlemen,Good morning. I’m Li Hua from Fujian, China. It’s my great honor to be here to say something about the global water shortage and ways of dealing with it.As we know, the global water shortage is being increasingly sever mainly due to global warming, environmental pollution and the everincreasing population. Therefore, it’s high time we did something about it.Firstly, an effective way, I think, is to reserve water in a scientific way for future use. Secondly, new methods need to be developed to use the existing waster resources, for example, turning sea water into fresh water. Thirdly, we must stoop water pollution by law. Last but not least, it’s everyone’s responsibility to make good use of water, such as recycling and saving water in our daily life.In conclusion, people around the world should be aware of the real situation of water shortage, protect the present water resources and explore potential ones scientifically.作文九global warming and our lifeGlobal warming has quickly bee one of the most heated issues. With the development of the economy, the emission of the green house gas, consisting of about 70% carbon dioxide, has been increased, attributing greatly to the global warming.Global warming is the slow and stead