The world is in danger. At one time there were 1,300 different plants, trees and flowers in Holland, but now only 860 remain(剩余). The others have been destroyed(破坏) by man. We are changing the earth, the air, the water and everything that grows and lives. We can't live without these things. If we continue doing like this, we will destroy ourselves.

    What will happen in the future? Perhaps it is more important to ask "What must we do now?" The people who will be living in the world of tomorrow are the young of today. A lot of them know that conservation(对自然环境的保护) is necessary. Many are helping to save our world. They plant trees and protect animals in forest. In a small town in the United States, a large group of volunteers cleaned the banks of their rivers. Young people may hear about conservation through a record called No One's Going to Change Our World. It was made by the Beatles, Cliff Richard and other singers. The money from it will help to protect wild animals.

David was a truck driver. Recently he was thought to be a great man.

Last Monday, he was driving along the road with his son and his friend. Suddenly he saw a car hit another truck (卡车) and catch fire. The accident was just in front of his truck. Without thinking, he stopped his truck, found a fire extinguish er (灭火器) and ran towards the broken car. But other car drivers still sat in their cars. David began to fight the fire. His action encouraged his friend. He also came and gave David a hand. Later, David's son and four other men came to help. Another five men pulled the car driver and her granddaughter, a three-year-old girl, out of the car successfully. They were all safe except that the driver's leg was hurt.

When people talked about David's brave action, David said, " I didn't think too much then. I just did what other people would do in that situation. When I first got out of the truck,I wished they wouldn't be dead. When I saw they were alive, it was really great!"

Li Hua and Wang Tao are two students of Class 4, Grade 7. They both like sports. Li Hua is a basketball fan. His favorite sport is playing basketball. Yao Ming is his favorite basketball player. He wants to be a basketball player like Yao Ming when he grows up. Li Hua is on the school basketball team now. Every Friday afternoon, Li Hua plays basketball with his classmates after class.

Li Hua's friend Wang Tao isn't good at basketball, but he is very good at soccer. Ronaldo is his favorite soccer player. Wang Tao is on the soccer team. He plays soccer with his teammates (队友) every Tuesday afternoon.

It was a cold winter morning. My 12-year-old granddaughter, Jayne, sent me messages on the phone every hour during her six-hour drive to our house.

"Grandma, can you put some snow in the fridge (冰箱)? That way, I can feel snow when I get there," she wrote. Jayne lives in the south of Georgia, the US with her parents, so she never saw snow before.

"Yes, I will," I wrote. "There is still some snow on the ground in the yard." And I sent her a few photos of it. However, the weather report brought me bad news. It said the weather would be sunny at noon. This made me feel concerned.

In the afternoon, they finally arrived. Jayne got out of the car first. She ran into the yard and put her hands in the snow. She looked so excited. It was great that the sun didn't come out that day.

"Grandma, the weather is so cold, but I enjoy playing with snow," Jayne said. Then she started to build a snowman. She made two large snowballs first. They were the head and the body. It looked nice. Jayne kept playing outside until her hands got wet and cold. Watching Jayne playing in the snow made me feel warm and thankful.

I still remember the lovely cold day. Small things in our lives can also make us happy.