Many parts of the world have four seasons. They are spring, summer, autumn and winter. In spring, the weather becomes warmer and the days get longer. Plants begin to grow and many animals have babies. Summer is the hottest season. Plants grow fast. In autumn, the weather turns cool. Trees may lose their leaves. Some birds fly to warmer places. Winter is the coldest season. Plants stop growing and many trees are bare(光秃秃的).

    Mr Carter is an Englishman. He's in China now. It was the Mid-Autumn Day (中秋节) last Sunday. Mr Li invited (邀请) Mr Carter to spend the festival with his family.

    Mr Carter was very glad. He had a big dinner in Mr Li's house. After dinner, they sat outside. They watched the moon Mr Carter told Mr Li that he had a good time in China.

    Today is the first day of the week. Liu Tao and his friend are at the Sports Club. They're talking about their weekends. Liu Tao is from Beijing. He can speak Chinese and English. He often plays football at the weekend. Sometimes he rows a boat with his parents. David is from the USA. But he lives in China with his parents now. He speaks English and French. He often looks for something on the Internet at the weekend. Sometimes he helps his mother do some cleaning and washing at home.

    Dinosaurs lived long ago. One kind of dinosaurs lived in a desert (沙漠). One of these dinosaurs wanted to lay eggs. It made a hole in the sand (沙子) and put the eggs inside. It covered them with sand. A strong wind started to blow. It blew and blew. More sand blew over the eggs. Soon the eggs were buried (埋) in the sand.

    A long, long time went by. There were no more dinosaurs. But there was still a desert. And the eggs were still there. But they changed. They turned to stones!

    Some people came to the desert. They were looking for old things. They found the stone eggs. Before that, no one knew how dinosaurs were born. But now we know that.

    It is Sunday today. The weather is fine. Bob and Jane are in the park. It is a big park. They can see many people there. They come here to have a rest after a week's hard work and study. Some boys are playing chess on the grass. Some girls are singing and dancing. An old woman is reading a newspaper under a tall tree· A young man and his little son are playing with a toy car. How happy they are!