与美国小学生一起学英文第3册 第7期:淡水

 　　Fresh Water 淡水

　　Fresh water comes from ponds, lakes, rivers and streams. 淡水来自于池塘、湖泊、河流和溪流。

　　People use fresh water for drinking, farming¹ and so on. 淡水可用于饮用、耕种等等。

　　People can only drink fresh water. 人们只能饮用淡水。

　　People should drink 2 liters² of water every day to make their bodies healthy. 人们每天需要饮用2公升淡水来保证身体健康。

　　Believe it or not, 18 percent of the world's population does not have enough drinking water. 不管你相不相信，世界上18%的人口缺乏足够的饮用水。

　　Therefore, people should try to protect fresh water on Earth.  因此，人们要保护地球的淡水资源。

1 farming   

n.农事；耕作

参考例句：

• He lives by farming.他靠务农过活。
• He is farming in Africa.他在非洲经营农场。

2 liters   

n.升( liter的名词复数 )

参考例句：

• In the metric system, measurements are made in metres and liters. 在公制中，用米和升作计量单位。 来自《简明英汉词典》
• This can holds five liters of water. 这个容器可装五升水。 来自《简明英汉词典》