Ben: There is no wind. It's very hot today. Let's make some iced (冰的) juice.

Susan: All right. How do we make it?

Ben: Let's make some ice first. We can use water to make ice. Pour (倒) water into little boxes. Then put the little boxes in the fridge (冰箱). The water becomes ice.

Susan: That sounds funny.

Ben: After that we put the ice in the glasses. We must be careful. The ice is very cold. At last (最后), we pour some juice into the glasses. How does it taste?

Susan: Wow! It's very nice!

Water is very important to people. We must drink water every day. If there's no water, we can't live. Water is everywhere around us.

At home, we use water to wash clothes, clean the floor, cook food, brush our teeth, wash hands, wash vegetables and fruits and so on. Farmers use water to grow crops. Firemen use water to put out fires. Workers use water to make drinks. We can also swim in water. Water is very useful to us. We must save it.

Sometimes fire is our friend.  …

But sometimes it is very dangerous. It can…