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Cassy made a plan for her and Emmeline. No one wanted to go to the attic（阁楼）in Legree’s house because everyone thought it was full of ghosts and Legree was afraid of ghosts. Cassy’s room was under it. One day, Cassy moved all her furniture to a room very far from it. When Legree asked why, she replied, “I can’t sleep. There were noises in the attic, every night, from midnight until the morning.”

“Noises in the attic?” said Legree, worried, “Who is up there?”

“I don’t know,” said Cassy and she went to her room.

Then she put things in the attic that made strange noises when the wind blew. The slaves heard them and started talking about ghosts. Legree became scared of passing near the stairs to the attic.

Then one night Cassy and Emmeline ran away. They stayed near the house and waited. When Legree left to look for them with his slaves and dogs, Cassy and Emmeline went into the attic.

Legree was angry when he came back and he was sure that Tom knew something.

“Tom,” said Legree, “tell me where those two are, or I will kill you. Speak!”

“I have nothing to say,” said Tom.

“Are you telling me that you don’t know?”

“I know, Master, but I can’t tell you.”

Legree hit Tom and kicked him again and again, until he thought Tom was dead. Then he left. But Tom was not dead.

Cassy and Emmeline stayed in the attic for days, until Legree stopped looking for them. Then one night they escaped again and nobody followed them. They were free.

Two days later, a young man arrived. He was George Shelby. When he received the letter from Miss Ophelia, he went looking for Tom to buy him back, but it took a long time to find him.

Legree took George to see Tom. Tom was lying on the floor, waiting to die. When George saw him, he felt sick.

“Uncle Tom, my poor, poor friend!”

Tom opened his eyes. “Master George! You remembered me! It’s going well.” said Tom and then he closed his eyes forever.

When George turned, Legree was standing behind him. “Who cares about a dead slave!” said Legree. George hit Legree so hard that he fell to the ground. Then ________.

Have you ever heard of ChatGPT? It’s an AI (人工智能) language model and is developed by Open AI. It’s designed to understand and produce human-like texts.

ChatGPT, or “Chatbot Generative Pre-trained Transformer”, is an advanced language model which is created with cutting-edge (尖端) artificial intelligence (AI) techniques. It’s designed to understand and produce texts like how humans do. ChatGPT is based on the GPT series of models, and it’s the fourth form that is known as GPT-4.

ChatGPT is trained on an extremely large amount of text data (数据) from books, websites, and other sources. It learns to understand the structure of the language, grammar, and context. When you provide key words about a text, ChatGPT organizes the information in a special order and makes a response, which is based on its knowledge.

The model has been trained to use a technique called “unsupervised learning”, which means it’s unnecessary to tell it what to do and how to do. It learns by observing patterns and relationships in the data. This helps ChatGPT to be highly creative and more suitable.

As a middle school student, you may find ChatGPT an excellent resource for different kinds of tasks. If you’re stuck on a problem or need help to understand a concept (概念), ChatGPT can provide explanations and examples. It can help you brainstorm ideas, make outlines, and even proofread your articles to improve your writing skills. If you’re learning a new language, it can help you practice by making conversations or translating phrases. It can also be a source of entertainment, creating stories, jokes, or even taking part in friendly conversations.

ChatGPT is undoubtedly a powerful tool. However, it is important to note that ChatGPT is not perfect and may sometimes make responses that are not appropriate or correct. We should use critical thinking skills and evaluate the responses which are generated by ChatGPT to ensure that they are appropriate and helpful.

Do you like travelling? Have you heard of volunteer travel? 1．

The main purpose of volunteer travel is to take part in service opportunity to help others. During the trip, volunteer travelers often provide services like teaching, cooking, animal caring, and cultural activities. The volunteers may get free or cheap accommodation (住处), meals and clothes-washing, activities, or classes-because of their help.

2． However, volunteer travel dates back to the 1960s, when Alec Dickson and his wife Mora from the UK founded Voluntary Service Overseas (VSO), an international volunteer organization,

3． But now, more volunteer trips have taken place within the volunteers’ own countries in recent years. Volunteer projects in the countryside are now attracting more visitors living in the cities as a break from the fast and stressful city lives.

By doing voluntary work while traveling, travelers may make a real, positive influence on the world. 4．Another advantage of volunteer travel is that it helps people living in cities experience the life in the countryside. For those who are tired of city life but can’t move to the countryside, volunteer travel can be a way. On the one hand, travelers can relax themselves from their busy lives. 5．