假設你是李華，福建某中學高中生，今年暑假將前往澳大利亞參加主題為“water for life”的交流活動。請你以參訪代表的身份，寫一篇發言稿。
Global water shortage
What can we do?
Ways of reserving water
Turn sea water into fresh water
范文一：
Ladies and gentlemen,
Good morning. I ‘m lihua from Fujiang, 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 all know, the global water shortage is becoming increasingly severe mainly due to global warming,environment pollution and the ever-increasing population. Therefore, it is 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 water resources,for example,turning sea water into fresh water. Thirdly, we must stop water pollution by law. Last but not least, t’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 ware of the real situation of water shortage,protect the present water resources and explore potential ones scientifically.
That’s all. Thank you.
范文二：
ater is the cradle of life. Sometimes people can live without food for several days. But nobody can live without water. Plants and animals also need water. When plants in the fields do not get enough water, they die. When animals in the forest can't fine water to drink, they also die.
There is a lot of seawater in the world, but it can't be used for drinking, because it is mixed with much salt. Then, people try to keep water. Now, there are more and more people in the world. So, more and more water is needed.
While some people try to keep water and control it, let all of us try to save water.
【參考譯文】
水是生命的搖籃。有時人們幾天不吃飯還可以生存，可是沒有水就不行了。植物和動物也需要水。田里的莊稼得不到足夠的水就會死亡;森林里的動物要是找不到水喝也會死亡。
世界上有大量的水，但海水不能飲用，因為里面混有許多鹽分。于是，人們盡力儲水。現在，世界上的人越來越多，這樣就需要越來越多的水。
在一些人盡力儲存并控制水的同時，讓我們大家更好地節約用水吧。