导语：水是生命之源，这的确是最中肯的评价，自从生命在水中形成的第一天起，水在生命体中起的作用就没有发生过改变。下面是yuwenmi小编为大家整理的优秀英语演讲稿，欢迎阅读与借鉴，谢谢!
The role of water
Water is very important to us. if you dont have water for three days, you will die. we can use water for flowers, swimming, washing and many different things. we use it to cook, make electricity, put out fires and so on. we use millions of liters of water every day.
Do you know how does the water come to your home? it travels through water pipes. some are long and wide but some are short and narrow. then the water travels through the water pipes to the reservoirs. then it travels through the water pipes to the river and to the special factories that purify the water. when the water is purified, we can drink it. please dont leave garbage in the water on which we line, and keep the water clean.
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水的作用
水对我们很重要。如果你没有水三天，你会死。我们可以用水来花，游泳，洗涤和许多不同的东西。我们用它做饭，发电，扑灭火灾等。我们每天使用数百万公升的水。
你知道水是怎么来你家的吗?它穿过水管。有些长而宽，有些短而窄。然后水通过水管流向水库。然后它通过水管到河流和特殊工厂净化水。水净化后我们就可以喝了。请不要把垃圾放在我们系的水里，保持水的清洁。