Benedict's explorations are often dangerous，but he likes them. One of his favorite explorations was in 2001. He wanted to be the first person to travel alone across the ice from Siberia to Alaska. So he went to Siberia and lived with the Chukchi people. He learned how to live like the Chukchi people and drive a dog team. He traveled 622 miles with only a dog team. The weather was really bad. There was a lot of snow, wind and ice，so the journey was very difficult. Benedict almost lost the dog team，and he almost died，so he ended his journey early. It was scary, but he learned a lot.

    Nora was 16 years old. Her little brother Jim was sometimes naughty, but he made Nora1a lot. One afternoon2she was walking in the street, she saw a small boy3very fast to her. When he came near her, she was4to see it was Jim. "Hi, Jim," Nora shouted at him. "5are you running so fast?"6Jim didn't stop. He waved to his sister and shouted, stop two boys7fighting. Again. She laughed and 8important job for a little boy, isn't it? You don't do things like that very often. 9are the two boys?" "They are Tom and me," answered Jim when he10down the street very quickly.

    Zheng He was an amazing man. He was born in 1371. Eleven years later, he was caught by the army of a rich young man called Zhu Di and made to work for him. Over time the rich man saw that Zheng He was very clever and strong and they became close friends. In 1403 Zhu Di became the emperor of China and he asked Zheng He to join his government.

    The emperor wanted to learn more about the world and show other countries his power. He ordered many new ships to be built and made Zheng He their leader. Between 1405 and 1433, Zheng He led seven sea trips to different parts of the world. He certainly travelled to India, Africa and the Middle East. A few people think his ships have even reached South America and Australia.

    Each trip lasted between two and four years and it is believed that he sailed more than 50,000 kilometres during the years of his travels. Zheng He led a fleet with about 28,000 men and over 300 ships, such as boats for food, water and even soldiers' horses.

    On these trips he brought with him many Chinese goods like silk and medicine to give to foreign kings or to sell for local goods. He returned from each trip with boats which were filled with expensive things such as gold and treasure, foreign guests and strange animals like a giraffe.

    It is a pity that we may never learn everything about Zheng He's travels. The Columbus of the East, Zheng He, died in 1433. After that, the new emperor had these trips stopped and he burned almost all the books about Zheng He's travels, because he believed the trips were unlucky and too expensive. It is only in the last 50 years that historians have begun to carefully study the adventures of great Zheng He.

At 15:40 on December 9th, 2021, the "space teacher", Wang Yaping, made some experiments in the Tianhe Core Module of the Chinese Space Station.

"Welcome to the ‘Tiangong Classroom!' " said Wang Yaping.

Taking a "spacewalk" is difficult. Ye Guangfu was working hard to walk, but his body floated! Then he tried to turn around but he couldn't. "In space, astronauts are in a weightless environment. So we need to use nearby devices (装置) to move," he said.

The paper flower "blooms". In the "Tiangong Classroom", Wang Yaping made a beautiful water film (水膜). Then she took out a paper flower and placed it on the film of water. The pink flower slowly "bloomed"! "I hope your dreams can bloom in the huge universe!" she said.

"Space Happy Ball" rings fun. Wang Yaping asked the children on the ground to put their ping pong ball in the water. The density (密度) of the ball was less than that of the water, so it floated up. In space, when she put the ping pong ball into the water, it did not float up to the surface. It stopped in the center of the water! "The buoyancy (浮力) disappears in a weightless environment in space so the ping pong ball cannot float (漂浮)." Ms. Wang explained.

It was a Saturday afternoon. Mr Green was reading a newspaper when he heard his wife 1 in the next room. He hurried to her and asked, "What happened to you, my dear?"

"Oh, dear!" his wife called out. "My head hurts! 2 a doctor. Hurry up!" Their two children were both out at that moment and something was wrong with the telephone. Mr. Green had to go to a hospital himself. Bad luck! That day all the hospitals in the town were 3 . Mr. Green didn't know where to go. Just then a friend of his saw him and asked, "What is the matter?"

Mr. Green told everything. The man said, "Why not go to Mr Black? He can help you. "

Mr. Green remembered his friend 4 was a good doctor. He hurried to Mr. Black's. When he got there, Mr and Mrs Black were having their 5 meal. The doctor asked Mr. Green to drink with him. He was happy and sat 6 . After that they began to chat(聊天). And when Mrs Black asked," How is your wife?" "She is fine, thanks..."Mr. Green stopped at once-he remembered his wife was waiting for a doctor at home.