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Unit 1 Look it up Mark Twain was an American writer. He wrote many famous novels.He was born in the countryside in Florida in 1835. When he was 12, his father died. He began working and did many different jobs. Gradually, he began to write. The Adventures of Tom Sawyer is one of his most famous novels. Many people around the world like his works. From Mark Twain, I learn that our experience in the past will bring something new to us in the future. It is important for us to seize the time and be a better person. Dear John, It's great to hear from you. I feel proud to know that you are interested in Chinese history. As for my favourite figure in Chinese history, it must be Wei Yuan, a great thinker in the late Qing Dynasty. His major contribution was his book called Haiguo Tuzhi. In the book, he introduced the history and political system of many countries, and advised Chinese people to study the science and technology of the Western countries. I admire this man a lot because he used his knowledge to promote the progress of the society at that time. He also inspired me to be open to new ideas. If you want to know more about him, I will recommend some books to you! Yours, Li Ming Unit 2 Amazing numbers Last week,our school did a survey among 2,000 students about how they spent their time during the summer holiday.The results are as follows. According to the survey, 45% of the students studied during the holiday. They read books or did their homework. Besides, 30% of the students played phones. For example, some of them played online games and some surfed the Internet. And 20% of the students went travelling with their friends or families. Last, the rest 100 students did some voluntary work in the community. In my opinion, we should have a meaningful holiday. Don't spend too much time playing online games. We should make good use of the holidays. Last week, Miss Lin made a survey on doing housework in our class. According to the survey, 40 per cent of our classmates often do some washing, such as washing clothes, the dishes and vegetables. 35 per cent of students clean the house. They sweep the floor and clean the windows. 12 per cent of students do some shopping for their families. And 8 per cent of them do the cooking. However, 5 per cent of students hardly do any housework. I think as a member of the family, it's our responsibility to do housework. We should learn to do some simple housework. It's also helpful for us to learn some life skills from it. Unit 3 Our digital lives Computers are more and more useful in our lives. I think that they help us with our studies a lot. Firstly, we can look for some information about our studies on the Internet. What's more, we can watch different movies on the Internet. It's very convenient. However, some students spend too much time playing computer games or chatting online. It is not only harmful to their health, but it also affects their study. Their parents are worried about them. In my opinion, we shouldn't play computer games on weekdays, but we can surf the Internet for a while at weekends and during holidays. In a word, we shouldn't spend too much time playing computer games. Shopping online has been popular with many people because it has many advantages. First, shopping online is fast and convenient, so we can save a lot of time. Second, we can buy cheaper products. Besides, we can shop whenever we like because most online shops are open 24 hours a day. However, it has some disadvantages too. For example, we can't check the goods by ourselves before we buy it, so we don't know whether the quality of the goods is good or bad. What's worse, it is not always safe to pay online. In my opinion, we should learn how to keep safe while shopping online, and we must think twice before we decide to buy something. Unit 4 Inventions Technological inventions play an important role in our daily lives. Among all the technological inventions, I like the high-speed train best. The high-speed train has many advantages. First, it can save us lots of time. For example, it takes us only about 30 minutes to travel from Guangzhou to Shenzhen. Moreover, it's comfortable to take the high-speed train because it moves so smoothly that passengers can watch movies or have a sleep on it. As a student, I'm proud of our country's high-speed train. And I will study harder and make contributions to our society in the future. Dear Michael, I'm glad to receive your letter and get a chance to discuss artificial intelligence with you. I don't think you need to be too worried about it. AI brings great convenience to our life. First of all, AI can be used to do dangerous jobs and keep workers safe. If people don't want to repeat the same boring and tiring work day after day, they can use AI to help them as well. Therefore, people can spend their free time on what they are interested in. What's more, AI can also help farmers in growing crops. For example, it can accurately tell farmers how much water crops need. However, I don't think AI can take the place of human beings because they can't produce new ideas. In my opinion, you should learn more about how to use AI properly instead of worrying about its negative effects. I'm looking forward to your reply. Yours, Li Hua Unit 5 Going on an exchange trip Dear Manda, I'm writing to thank you and your family for everything you did for me when I lived with you in Britain. You and your family were amazing hosts, and you made me have a great time in the UK. Thank you for making me feel at home. Besides, I'm sure my English has improved a lot because you always give me a helping hand. What's more, because of living with you, I have learnt a lot about the culture of the UK. And it was nice of you to take me to the places of interest during the holidays. Now I know more about London and feel it is my second home town. I hope we can keep in touch with each other forever. If you have time, please come to China and I can show you around my city as well. Yours, Li Hua I want to sincerely thank you for your help with my studies. Your support has not only improved my grades but also taught me valuable lessons. When I met with difficult math problems, I saw how patiently you explained each step to me. Your patience taught me the importance of staying calm. Before the English oral test, I was very nervous, but you encouraged me and practiced with me until I felt confident. Your positive attitude showed me the power of encouragement. Through your actions, I learned to be more patient and supportive towards others. I feel deeply grateful and truly cherish our friendship. You are not just a helper but also a role model to me. Unit 6 Wisdom counts The story of "Borrowing Arrows with Straw Boats" shows how smart Zhuge Liang was. He needed many arrows for a battle, but he didn't have enough time to make them. So, he had a clever idea. He ordered his soldiers to put many straw men on boats. One foggy morning, he moved the boats near the enemy camp. The enemy could not see clearly because of the thick fog. They thought the straw men were real soldiers and started shooting arrows at them. Soon, the straw men were full of arrows. Zhuge Liang then sailed back with all the arrows he needed. From this story, I learn that being smart is better than being just strong. We should use our wisdom to solve difficult problems. This story about Cao Chong shows how a child can be very wise. One day, someone gave his father, Cao Cao, a huge elephant. Everyone wondered, "How can we weigh this giant animal?" No scale was big enough. Young Cao Chong came up with a brilliant idea. He had the elephant led onto a big boat in the river. He marked the water level on the boat's side. Then, he took the elephant off and filled the boat with stones until it sank to the same mark. The weight of the stones was equal to the weight of the elephant. People could then weigh the stones easily. From Cao Chong, I learn to think creatively. When faced with a big problem, we should look for a simple and smart solution. Unit 7 The secret of memory Dear Jack, I'm glad to give you some advice on how to improve your memory. First of all, in order to train your brain, it's a good idea to do some new things and change your daily habits. In this way, you can make your brain more active and creative. Besides, living a healthy lifestyle also makes sense. It requires a balanced diet and enough time for your brain to relax after a busy day. What's more, I advise you not to be too nervous and keep relaxed, or you can't focus on your study the next day. Last but not least, if you have any trouble, please talk to your friends and teachers anytime you need. I hope my advice can help you. I am looking forward to your improvement. Best wishes! Yours, Li Hua Hello, everyone! I think memory is very important in our lives. Here are some practical ways to improve our memory. First, we need to exercise our brain more often to keep it active. For example, we can try learning a new language or playing a new musical instrument. Besides, to better memorize something in a short time, we had better remember it again and again. In addition, if we want our brain to work well, living a healthy life is worth a try. We should have a balanced diet and get enough sleep. They are good for our brain. Last but not least, we need to stay relaxed so that we can memorize things more quickly. That's all. Thank you! Unit 8 Pets and us I think dogs are the perfect pets. They are very loyal and always happy to see you. A dog is like a best friend who will never leave your side. First of all, dogs are also great companions. They love to play and go for walks, which helps you stay active. Beside, they are also very comforting when you feel sad. Last but not least, dogs give us unconditional love. They don't care about anything but being with you. For all these reasons, I believe a dog is the perfect pet you can have. Many people like dogs or cats, but I think birds make the perfect pets. First, they are very beautiful with colorful feathers. It is nice to watch them. Second, birds are easy to look after so we don’t have to pay much attention on them. What’s more, they live in a cage, so they don't need a big space. This is perfect for people living in apartments. For all these reasons, I believe a bird is the perfect pet you can have. $