It was very great last Saturday. I got up very early. Then I went shopping with my grandma. She bought me some ice-cream. That was so nice. I bought some interesting books for myself and bought some flowers for my mother. It was her birthday. In the afternoon, my father watched TV with me. The show was very funny. I had a great time last Saturday.

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    Dan and Kim are friends. Dan lives in an apartment downtown(市中心). It is very convenient to go to work or go shopping, but it's too noisy. There is a lot of traffic. Sometimes Dan can't stand(忍受). Kim has a house in the suburbs(郊区). It's not convenient to go to work or go shopping, but it's very quiet. There is not much to do. In fact, nothing ever happens.

    Dan and Kim have a good idea. They decide to trade(决定交换)places one week.

WuBinbin: Hello! I'm WuBinbin. I have a book, a pen and a big bag.

Chen Jie: Good afternoon. My name is Chen Jie. This is my pencil and this is my pen.

Sarah: Hi! I'm Sarah. I have a book.

    Jim and Tim are good friends. Jim is ten years old. He is tall and strong. And Tim is eleven years old. He is short and fat. They're pupils. Jim can ride a bicycle. He has a green and super bicycle. Tim can't ride, but he can swim and dive.

A: What time is it, Mingming?

B: It's eight o'clock.

A: OK. Let's count the rulers. How many rulers are there'?

B: One, two, three... Twelve rulers.

A: What colour are they?

B: They're yellow.

A: How many pens are there?

B: Two pens.

A: Good!

    It is March 12th. It's Tree Planting Day. There are many people on the hills. They're planting trees. People plant many trees today. Plants are important to us. They can make food from the air, water and sunlight. But animals and people can't do so. Animals and people can get food from plants. Without plants, life will not go on, Plants make the air clean, they can keep water from flowing away(流失). They can stop wind from blowing up sand and earth. But in some places people are cutting down too many trees. This brings floods(洪水) and sandstorm(沙暴). Now more and more people know that plants are important. They will plant more trees and grow more plants. They will try to protect the trees.