6．
阅读短文，判断正误。 Of all the things we eat and drink, water is the most important. Nature has a great water system. Water is everywhere. It is in the air. It forms (组成) lakes and rivers. Water is in every living thing. It is in the most part of all the animals, plants and human beings (人类).
People can use the water to carry goods and go around the world. People can also use the water to swim, have a bath, wash the food and clothes. Water is so important for every living thing, but man is polluting (污染) it. They throw rubbish into rivers. They pour waste water into lakes, rivers and seas. We must stop people from polluting the water right now. If not, the last drop of water will be our tear drop.
