Unit 6 SectionB 培优作业 2025-2026学年人教版（2012）九年级英语全册

U6 SectionB 培优作业 基础巩固 一、用括号内所给单词的适当形式填空 1. As a ______ (profession) dancer, she performs on stage every week. 2. The ______ (popular) of this app has increased a lot recently. 3. We must ______ (prevent) children from playing near the river. 4. After ______ (complete) the project, we had a celebration. 5. Our teacher encourages us ______ (practice) speaking English every day. 6. The number of books in the library ______ (be) over ten thousand. 7. A strong wind ______ (blow) yesterday, causing some damage. 8. The scientist ______ (discover) a new species last month. 二、根据句意及汉语提示填写单词 9. Remember the saying: “Don’t put all your eggs in one ______ (篮子)”. 10. Those firefighters are true ______ (英雄) for saving people in the fire. 11. Please ______ (分开) the toys into different groups for the kids. 12. He is from ______ (加拿大), but he studies in China. 13. It’s our duty to keep the park ______ (干净的). 三、句型转换 14. People grow rice in the south of China.（改为被动语态） Rice ______ ______ in the south of China. 15. She finished her homework. Then she went to bed.（合并为一句） ______ ______ her homework, she went to bed. 16. We will hold the meeting in the hall.（对划线部分提问） ______ ______ we hold the meeting? 17. He often plays basketball after school.（改为否定句） He ______ often ______ basketball after school. 18. She is good at singing.（改为同义句） She ______ ______ ______ singing. 阅读拔尖 四、阅读理解 The history of the bicycle is a fascinating journey of innovation. In the early 19th century, the first bicycle-like device was invented. It had no pedals, and people had to push it with their feet. It was called a “draisine”. In the 1860s, pedals were added to the bicycle, making it easier to ride. This design was called the “velocipede”. However, it was still quite uncomfortable. In the 1880s, the modern bicycle with two same-sized wheels and a chain drive was invented. This made riding much smoother and more efficient. By the 20th century, bicycles had become a popular form of transportation and recreation. Today, bicycles come in many types, such as mountain bikes, road bikes, and electric bikes. They are not only a means of transport but also a way to stay fit and protect the environment. 根据短文内容，选择最佳答案。 19. What was the first bicycle-like device called? A. Velocipede B. Draisine C. Modern bicycle D. Electric bike 20. When were pedals added to the bicycle? A. In the early 19th century B. In the 1860s C. In the 1880s D. In the 20th century 21. What made the modern bicycle smoother? A. Pedals B. Different-sized wheels C. Chain drive and same-sized wheels D. Electric power 22. Which type of bicycle is NOT mentioned? A. Mountain bike B. Road bike C. Folding bike D. Electric bike 23. What is one benefit of bicycles today? A. They are only for transport. B. They help people stay fit. C. They are not environmentally friendly. D. They are uncomfortable to ride. 五、完型填空 The invention of the light bulb has transformed our lives. Before light bulbs, people used candles or oil lamps, which were dim and dangerous. Thomas Edison is famous for ______24______ the practical light bulb. He tried thousands of materials for the filament. Finally, he ______25______ a carbon filament that worked well. The first practical light bulb was ______26______ in 1879. It could stay lit for about 1200 hours. This was a great ______27______ . Soon, light bulbs were used in homes, streets, and factories. Over the years, light bulbs ______28______ greatly. LED bulbs, which are more energy-efficient, ______29______ widely used today. They last much ______30______ than traditional bulbs and save more electricity. Light bulbs have changed how we live. They let us work and play ______31______ dark. Without them, our modern life ______32______ be very different. Even small inventions like this can have ___33____ huge impact on the world. 24. A. inventing B. invented C. invents D. invent 25. A. find B. found C. finds D. finding 26. A. invent B. invented C. was invented D. is invented 27. A. success B. successful C. succeed D. successfully 28. A. improve B. improved C. were improved D. are improved 29. A. is B. are C. was D. were 30. A. long B. longer C. longest D. the longest 31. A. in B. on C. at D. for 32. A. will B. would C. shall D. should 33. A. a B. an C. the D. / 六、首字母填空 The history of the computer is full of amazing progress. The first computer was invented in the 1940s. It was huge, filling a whole room, and very slow. It was mainly used for military and scientific purposes. Later, computers were i______34______ many times. In the 1970s, personal computers were introduced. They were smaller and more affordable, making them accessible to ordinary people. Today, computers are an essential part of our d______35______ lives. We use them for work, study, entertainment, and communication. Smartphones, which are like small computers, are even more popular. They allow us to surf the Internet, take photos, and stay in touch with others wherever we go. The development of computers has changed the way we live and work. It has made information more accessible and communication more convenient. It's hard to imagine life without them. They have truly changed the world in many w______36______ . In the future, we can expect more a______37______ in computer technology. Maybe we will have computers that can think like humans or computers that are even smaller and more powerful. Computers also help with scientific r______38______ . They can process large amounts of data quickly, which helps scientists make new discoveries. From space exploration to medical research, computers play a key r______39______ . As technology advances, we must also remember to use computers wisely. We should protect our personal information and avoid spending too much time online. After all, technology is meant to i______40______ our lives, not control them. Whether it’s a simple calculator or a supercomputer, the invention of computers has shaped the modern world. It’s exciting to think about what new i______41______ will come next and how they will change our future. 答案 基础巩固 一、1. professional 2. popularity 3. prevent 4. completing 5. to practice 6. is 7. blew 8. discovered 二、9. basket 10. heroes 11. divide 12. Canada 13. clean 三、14. is grown 15. Having finished 16. Where will 17. doesn’t; play 18. does well in 阅读拔尖 四、19. B 20. B 21. C 22. C 23. B 五、24. A 25. B 26. C 27. A 28. C 29. B 30. B 31. A 32. B 33. D 六、34. improved 35. daily 36. ways 37. advances 38. research 39. role 40. improve 41. inventions 学科网（北京）股份有限公司 $