(单词翻译:单击)
Although the world is hungry, it is even thirstier.
虽然世界充满了饥饿,但是它更加缺水 。
While nearly 3/4 of the earth is covered with water, we are still short of drinking water.
尽管地球的四分之三都覆盖着水,我们依然缺少饮用水 。
This is because about 97% of the water on the earth is sea water.
因为地球上97%的水都是海水 。
So we can't use it for watering plants or drinking directly.
所以我们不能用它来灌溉植物或直接饮用 。
Humans can only drink and use fresh water from places including rivers, lakes and underground.
人类只能饮用来自河流、湖泊和地下的新鲜水 。
How can we avoid a serious water shortage?
我们怎样能避免严重的水资源短缺呢?
First, we should save water and not waste it.
首先,我们应该储存水源,不再浪费 。
Second, we should protect our water resources and not pollute them.
其次,我们应该保护水资源并且不再污染它们 。
Third, we should discover ways to reuse water.
第三,我们应该寻找循环利用水源的方法 。
Scientists have made some progress in this field.
科学在已经在这一方面取得了进步 。
Today, some large cities are reusing their water.
现在,有些大城市的水源是重复利用的 。
But people's need for water is increasing day by day.
但是人类对水资源的需求量与日俱增 。
We still don't have enough water.
我们依然没有足够的水源 。
What else can we do?
我们还能做什么呢?
The sea seems to have the best answer.
海洋似乎有最好的答案 。
There is plenty of water in the sea.
大海有足够的水分 。
But we need to take the salt away from the sea water.
但是我们需要把盐从海水中分离开来 。
This is very expensive.
这花费很高 。
If scientists can find cheaper ways to do it, we can solve the problem of the shortage of water.
如果科学家们能找到更便宜的方法,我们就能解决水资源短缺的问题 。
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