Earth’s Water
美音、自然拼读、分级阅读与词汇复习
Water Everywhere Water fills oceans, lakes, and ponds.
到处都是水 水能填满海洋,湖泊和池塘.
It flows in rivers, streams, and underground.
它流于河流,溪流和地下.
It is even in the air.
它甚至还在空中。
Some parts of Earth have snow and ice, which are frozen water.
地上有些地方有雪和冰,是冻水.
Water covers most of Earth’s surface.
水覆盖了大部分地表。
Salt water in the oceans makes up much of Earth’s water.
海洋中的盐水构成地球的大部分水.
Earth has much less fresh water.
地球的淡水少得多。
Many plants and animals need this fresh water to survive.
许多动植物需要这种淡水来生存.
Some of this fresh water is aboveground, while other fresh water is underneath Earth’s surface.
其中一些淡水位于地上,而其他淡水则位于地表下方。
What are some ways you use Earth’s water?
你使用地球水的方式是什么?
Different Forms of Water Liquid water is the most common state of Earth’s water.
不同形式的水液水是地球水的最常见状态.
It takes the shape of the container it is in.
它的外形是它的容器。
Liquid water is always moving, even if you can’t see it move.
液体水总是在移动,
It flows in rivers and streams, and it crashes as ocean waves.
它会流入河流和溪流, 像海浪一样崩溃.
Not all water is liquid.
并非所有水都是液体。
When liquid water gets very cold, it freezes to form ice.
液态水变得非常冷后会结冰以形成冰.
Ice is another state of water—solid water.
冰是另一个水态——固水.
Ice can float on liquid water.
冰可以漂浮在液态水上.
People form ice into different shapes.
人们将冰形成不同的形状.
Artists even carve ice to make sculptures.
艺术家甚至雕刻出冰块来做雕塑.
Much of Earth’s frozen water is at the North and South Poles, Earth’s coldest areas.
地球大部分被冰冻的水都位于地上最寒冷的北极和南极。
Some of Earth’s water is in an invisible state as a gas called water vapor.
地球的一些水处于一种不可见的状态,是一种称为水蒸汽的气体。
While it’s always invisible, water vapor is all around us.
虽然水蒸气总是看不见,
Changing Water Earth’s water is always changing from one state to another.
地球水的改变总是从一个州变为另一个州。
When frozen water is heated, it melts and becomes liquid water.
被冷冻后被加热后会融化并变成液态水.
When liquid water is cooled, it freezes and becomes ice.
当液态水被冷却后会结冰并变成冰.
Liquid water can become a gas, too.
液体水也可以变成气体
Have you ever seen a puddle of water dry up on a hot day?
你见过热天有水被干涸吗?
Energy from the Sun changed the liquid to a gas in a process called evaporation.
来自太阳的能量在被称作蒸发的过程中将液体改为了气体.
Water evaporates from oceans, rivers, lakes, and puddles all over the world.
水从海洋,河流,湖泊中蒸发出,并遍布世界各地.
When water vapor in the air cools down, it changes from a gas to a liquid.
当空气中的水蒸发降温后,它会从气体变为液体.
This process is called condensation.
这个过程叫做收缩.
Clouds are made up of tiny drops of water formed by condensation.
云由收缩后形成的微小滴出水而成.
The tiny drops stick together, creating larger, heavier drops.
小滴会粘在一起,产生更大更重的滴.
Once they’re large enough, they fall to the ground as rain or another type of precipitation.
一旦它们足够大,它们会倒入地上,成为雨或另一种类型的降水.
Water Is Important Rain keeps plants alive and allows them to keep growing.
水是重要的雨能使植物活下来,并允许它们继续生长.
People and other animals need water to survive.
人们和其他动物需要水来生存.
We also use it for other purposes, such as fighting fires.
我们还将它用于其他目的,例如灭火。
It is important to take care of Earth’s water.
照顾地上水很重要。
Keeping waste and trash away from water keeps it from becoming dirty and unusable.
使废物和垃圾远离水,使其不至于变得肮脏和无法使用。
Polluted water makes people, plants, and animals sick.
被污染的水会使人们,植物,动物生病.
Would you want to drink and play in polluted water?
你想在被污染的水里喝酒玩吗?