假设你是李华，福建某中学高中生，今年暑假将前往澳大利亚参加主题为“water for life”的交流活动。请你以参访代表的身份，写一篇发言稿。
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.
【参考译文】
水是生命的摇篮。有时人们几天不吃饭还可以生存，可是没有水就不行了。植物和动物也需要水。田里的庄稼得不到足够的水就会死亡;森林里的动物要是找不到水喝也会死亡。
世界上有大量的水，但海水不能饮用，因为里面混有许多盐分。于是，人们尽力储水。现在，世界上的人越来越多，这样就需要越来越多的水。
在一些人尽力储存并控制水的同时，让我们大家更好地节约用水吧。