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     Shu Pulong has helped at least 1000 people bitten by snakes. “It was seeing people with snake bites that led me to this career,” he said.

In 1963, after his army service, Shu entered a medical school and later became a doctor of Chinese medicine. As part of his studies he had to work in the mountains. There he often heard of people who had their arms and legs cut off after a snake bite in order to save their lives.

      “I was greatly upset when they told me the story of an old farmer I met. It was a very hot afternoon. The old man was pulling grass in his fields when he felt a pain in his left hand. He at once realized he had been bitten by a poisonous snake. In no time he wrapped（缠绕）a cloth tightly around his arm to stop the poison（毒）getting to his heart. Running home he shouted, `Bring me the knife' Minutes later the man lost his arm forever.”

“The heartbroken story touched me so much that I decided to devote myself to helping people bitten by snakes.” Shu added, “I worked very hard and tried my best to make a good snake doctor.” And at last he made it.

A 108-year-old Message in a Bottle

    On November 30, 1906, George Bidder dropped a bottle from a boat into the North Sea. The weighted glass bottle sank almost to the sea floor, and then it move slowly for 108 years and 138 days.

    Its journey ended when Marianne Winkler found the bottle in 2015. Winkler was then on vacation on Amrum Island. She picked up the bottle when it was washed up onto the beach. She saw a piece of paper inside, but didn't break it open. She could tell that the bottle was old. So she didn't want to damage it.

    Finally she got the piece of paper out of the bottle. She found that the paper was actually a postcard. On the back of the card there was this message: The Marine Biological Association（海洋生物学协会） would pay a shilling（先令） for the bottle. A shilling was a unit of money that was used in Great Britain before the early 1970s.

    Winkler filled out the card and posted it. The association was surprised to get a postcard addressed to George Bidder, the president of the association from 1939 to 1945. The workers of the association searched on the Internet to find a shilling. They found one and sent it to Winkler as a reward.

    The message in the bottle was the oldest ever re-discovered. For this reason Marianne Winkler got a place in  “Guinness World Records”（吉尼斯世界纪录）. She broke the record for the oldest message in a bottle.

    Winkler's bottle was not the only one Bidder sent to sea. Between 1904 and 1906, he spent away more than one thousand bottles. He placed postcards inside them. The bottles were part of a research  project to map currents（洋流） in the North Sea. This was the best method at that time. But whether the association could get the bottles back depended on the people who found them. The association reported that about 55 percent of the bottles were returned. They added that the experiment was a success as it showed the east-to-west flow of the North Sea's currents.

    In about 1503, during Christopher Columbus's fourth and final trip to America, his ship was seriously damaged in a storm. Columbus and his men had to live on a small island for several months while they tried to repair their ship and return to Spain.

    At first, the local people on the island were very kind to the European visitors, giving them all the food and clothes they needed to survive. However, as the months passed, the local people became more and more unhappy with their guests, who were tricking and stealing from them. Finally the locals decided to stop helping. Without food or any way to leave the island, Columbus's group was soon in serious trouble.

    Luckily for Columbus, he had a book about the stars and planets on his ship. It described the movements of all the objects in the night sky. The book, written by a well-known German scientist, said there would be a total lunar eclipse(月食)and how long it would last.

    Columbus worked out the difference in time between Germany and North America. He then had a meeting with the local leaders just before the eclipse would take place. In this meeting, Columbus told them his god was angry because the local people were no longer giving food. So his god would take away the Moon to punish them. At the moment Columbus finished talking, just as he had planned, the Moon began disappearing.

    The local leaders grew frightened and quickly agreed to provide Columbus with food and anything else he wanted. But first, Columbus's god had to return the Moon. Columbus told them he would have to discuss the idea with his god on his ship. Knowing the Moon would stay completely hidden for about 48 minutes, Columbus returned just before the Moon began to reappear. From that day on, until they finally left, Columbus and his men no longer had any trouble getting the food they needed.

My name is Steve. I'm thirteen years old. I'm a high school student. The girl in pink is my sister, Mary. And the girl in red is my sister, too. Her name is Jane. They look the same. They both(两者都) have big eyes and blond hair. The boy in white is my friend, Jack. He has a big nose and short hair. We are in the same class.

Amy's favourite writer released (发布) a new book last week. Amy was very excited because she had enough money to 1 it this weekend. She talked about the book with her online chat group (聊天群). A lot of the other children wanted to buy the book too.

Stephanie, one child from the group, sent Amy a(n) 2 . It said that Stephanie wanted to meet Amy at the bookstore to buy the new book together. Amy 3 her mum about it. Her mum asked, "Do you know Stephanie from school?"

"No," Amy answered. "We only talked online."

"Listen," Amy's mum said, "I want you to have 4 , but sometimes, people online aren't who they say they are. So I don't think it's a 5 idea for you to meet this person (人)."

"But, Mum," Amy said, " 6 Stephanie just wants to buy a book with me."

Amy's mum said, "Let's do this. Dad and I will go with you. If Stephanie is just a child and wants to make friends with you, that's great. 7 she is not, you'll be safe."

Amy didn't like that idea. It made her feel like a baby. But she knew her mum was 8 , so she said yes. Then she told Stephanie that she would go to the bookstore with her parents at 9:30 am.

The next day, Amy got to the bookstore on time. But she didn't 9 Stephanie. Amy then knew that her mum was right. She felt 10 that her parents were there to look after her and keep (保持) her safe.