The water cycle shows how water moves and changes on the Earth. It is a cycle, because it doesn’t have a beginning or an end. It is important, because it gives us water to drink. It also water plants for our food.
The warm air comes up and becomes cold. Then it comes down-it rains. Then little wet drops change into millions of drops of water and become clouds. When the clouds cover/go up the sky it may rain.When the air becomes colder, more drops of water are formed. When there are very many drops of water, they are so heavy that the clouds cannot hold them, so they fall down on the ground. This is rain. When it is very cold these drops make little crystals of ice and fall down on the ground. This is snow. When and why does the wind blow? When the air becomes warm, it goes up in the air and the cold air moves down. So the air moves and the wind blows and all the trees shake
Объяснение:
1. Two years ago I visited my old aunt in a small old town.
2. He has finished his work yesterday,thanks God finally he can take a beak and relax.
3. Last year Bill wanted to become a pilot. This year he wants to be a doctor or writer.
4. What did you do a minute ago? I saw you rummaging about among the pile of my dress.
5. Last night they have gathered about the fire in order to discuss the plans of the future.
6. We saw him the day before yesterday, he was very depressed about something.
7. Her son broke the window, therefore we must buy the other windowpane.
8. The other day she has knocked on the door just to greet us with her beautiful smile.
9. Where have been you last week? did you attend the lectures? Did you attend the lectures on history or did you play truant?
10. How long ago did you understand the meaning of life?
c) The Air and the Water
The water cycle shows how water moves and changes on the Earth. It is a cycle, because it doesn’t have a beginning or an end. It is important, because it gives us water to drink. It also water plants for our food.
The warm air comes up and becomes cold. Then it comes down-it rains. Then little wet drops change into millions of drops of water and become clouds. When the clouds cover/go up the sky it may rain.When the air becomes colder, more drops of water are formed. When there are very many drops of water, they are so heavy that the clouds cannot hold them, so they fall down on the ground. This is rain. When it is very cold these drops make little crystals of ice and fall down on the ground. This is snow. When and why does the wind blow? When the air becomes warm, it goes up in the air and the cold air moves down. So the air moves and the wind blows and all the trees shake