This is my good friend. Her name is Lily. She is tall and thin. She is quiet. She has big eyes and long hair. She is ten years old. She likes white and blue. She likes Chinese very much. She is very friendly too.

    Do you see the sea? The sea is blue，and it is very large(大的)．The sea looks beautiful in a sunny day. If(如果)you swim，in the sea，you know that the water is salty(咸的)．Do you like the sea?

    Miss Lin is our Art teacher. She likes telling us about her weekends. She usually gets up early on Sundays. She plays sport in the garden for about half an hour. Then she has her breakfast. She often plays with her cat for about two hours in the park. The cat is white and black. She likes her cat very much. She has lunch in a restaurant near her home. After lunch she enjoys walking down the street and saying hello to her neighbours. In the afternoon, she cleans her house. She often cooks dinner for herself. Then she watches TV. Sometimes she sees a film in the cinema at night. She enjoys her Sundays very much.

Yang Ling: Excuse me, what's that on the table?

Nancy: It's a toy car.

Yang Ling: Oh, how nice! Can I have a look?

Nancy: Sure. Here you are.

Yang Ling: Thank you. I like it very much. Is this your toy car?

Nancy: Yes, it is.

    Air is all around us. It is around us as we walk and play. From the time we were born, air is around us on every side. When we sit down, it is around us. When we go to bed, air is also around us. We live in air. We can live without food or water for a few days, but we cannot be alive for more than a few minutes without air. When we are working or running, we need more air. When we are asleep, we need less air. We live in air, but we cannot see it. How can we make air move? Here is one way. Hold an open book in front of your face, close it quickly. What can you feel? What you feel is air.