Unit 5 A fine balance Presenting ideas & Reflection 同步练习2026-2027学年外研版英语九年级上册

**基本信息** Unit 5 A fine balance（九年级上册新外研版）同步练，通过“基础-提升”分层设计，以环保主题为线索，实现从词汇句型到语篇应用的渐进式知识巩固，培养语言能力与思维品质。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |练基础|词汇（首字母填空、词形变化）、句型转换、补全对话|融入“印象安徽”新情境与学科融合，通过基础题型夯实语言能力，强化文化意识| |练提升|阅读理解、语法填空、任务型阅读|以海洋清理等环保语篇为载体，考查信息提取与综合应用，提升思维品质与学习能力|

Unit 5 A fine balance Presenting ideas & Reflection2026-2027学年九年级上册新外研版 练基础 Ⅰ. 根据首字母及汉语提示填空。 1. We had to c______（取消）the outdoor concert because of the sudden storm. 2. The library rules don't p______（允许）readers to eat or drink inside. 3. More students are beginning to care about e______（自然环境的）problems such as waste pollution. 4. Everyone should take part in the p______（保护）of cultural relics when travelling. 5. With enough food and water, the chance of s______（幸存）in the wild will be much higher. Ⅱ. 用方框中所给词的正确形式填空。 endanger easy tour logo 6. The blue whale is an ______ species, and we must act now to save it. 7. It is much ______ to understand the text if you read the background information first. 8. Many international brands design their ______ to be simple and easy to remember. 9. 【新情境·印象安徽】During the holiday, thousands of ______ visited the ancient village of Xidi. Ⅲ. 根据所给汉语意思完成句子。 10. 我们老师帮我们成立了一个帮助老年人的小组。 Our teacher helped us ______ ______ ______ to help the old people. 11. 【新交汇·学科融合】地球大约是月球的49倍大。 The earth is about ______ ______ ______ ______ the moon. 12. 政府每年都为这个村子里的贫困儿童提供免费书籍。 The government ______ the poor children in this village ______ free books every year. 13. 截至目前，濒危动物的数量仍在增加。 ______ ______, the number of endangered animals is still increasing. 14. 【新交汇·安全教育】遵守交通规则有助于保证我们的安全。 Following the traffic rules ______ ______ ______ our safety. Ⅳ. 补全对话。 根据对话内容，从方框内的选项中选出能填入空白处的最佳选项，其中有两个为多余选项。 A: Hi, Sarah! I haven't seen you for a long time. 15. ______ B: Hi, Mark! I went to a summer camp in the countryside. A: Sounds interesting! 16. ______ B: We planted trees, cleaned up the river, and learned about organic farming. A: That's amazing! 17. ______ B: Yes, I made many new friends who also care about the environment. A: 18. ______ We should organize a similar activity at our school. B: Good idea! 19. ______ A: Let's meet at the school gate this Saturday morning and discuss the plan. A.What did you do there? B. Where have you been? C. Did you enjoy yourself? D. I can't agree more. E. How was the weather there? F. When and where shall we meet? G. Who did you go with? 练提升 Ⅴ. 阅读理解。 Every year, millions of tons of plastic waste end up in the ocean, harming marine life and polluting the water. To solve this problem, a 19-year-old Dutch inventor named Boyan Slat came up with a brilliant idea: the Ocean Cleanup Project. The project uses a long, floating barrier that is placed in the ocean to collect plastic waste. The barrier is shaped like a "V" and moves slowly with the ocean currents. As plastic floats on the water's surface, it is guided into the center of the barrier and collected. Special ships then come to take the plastic away for recycling. The first successful test of the system took place in the Great Pacific Garbage Patch, an area in the ocean where plastic waste has gathered for many years. During the test, the system successfully caught plastic pieces as small as 1 centimeter. This was an important step forward because most systems can only catch large pieces of plastic. Boyan Slat started the Ocean Cleanup Project when he was only 16 years old. Now, his team has hundreds of engineers and volunteers working together to clean the oceans. They hope to remove 90% of the ocean plastic by 2040. However, Slat also says that cleaning the ocean is not enough. We must also stop plastic from entering the ocean in the first place. He calls on people to reduce single-use plastics and support recycling programs. "Technology can help," he says, "but everyone's effort is needed to truly solve this problem." 20. What is the purpose of the Ocean Cleanup Project? A. To catch fish in the ocean. B. To collect plastic waste in the ocean. C. To test new ships in the ocean. D. To study ocean currents. 21. How does the floating barrier collect plastic waste? A. It uses special ships to push plastic into the center. B. It moves quickly to catch plastic before it sinks. C. It uses a "V"-shaped barrier to guide plastic into the center. D. It attracts plastic with magnets. 22. Where did the first successful test of the system take place? A. In the Atlantic Ocean. B. In the Indian Ocean. C. In the Great Pacific Garbage Patch. D. In the Mediterranean Sea. 23. What does Boyan Slat call on people to do besides cleaning the ocean? A. To stop using all kinds of plastic. B. To stop plastic from entering the ocean in the first place. C. To build more barriers in the ocean. D. To become engineers and join his team. 24. What is the main idea of the passage? A. A young inventor's project to clean up ocean plastic. B. The dangers of plastic waste to marine life. C. How to recycle plastic waste. D. The life story of Boyan Slat. Ⅵ. 语法填空。 阅读下面短文，在空白处按要求填入适当的单词或括号内单词的正确形式。 Green Roofs: Gardens in the Sky Have you ever seen a garden on the roof of a building? These are called "green roofs", and they are 25. ______ (become) more and more popular in cities around the world. A green roof is a roof that is partly 26. ______ fully covered with plants. It is not just beautiful to look at, but also good for the environment. Green roofs help to reduce the temperature in cities. In summer, normal roofs can become very hot, 27. ______ makes the whole city warmer. This is called the "urban heat island effect". Green roofs, however, absorb heat and provide a cooling effect. They can make the air around 28. ______ (they) 3 to 4 degrees cooler. Another benefit is that green roofs can absorb rainwater. In heavy rain, normal roofs let water run off quickly, which can cause floods. Green roofs hold the rainwater in the soil and release it 29. ______ (slow). This helps to prevent flooding and reduces the pressure on the city's drainage system. Plants on green roofs also help to clean the air by absorbing carbon dioxide and producing oxygen. They provide habitats for birds and insects, 30. ______ (bring) more biodiversity to the city. To build a green roof, engineers need to make sure the building is strong enough 31. ______ (support) the extra weight of the soil and plants. They also need to choose plants that can survive in harsh conditions, such as strong winds and little water. Many schools have started building green roofs to teach students about environmental protection. Students can grow vegetables, observe insects, and learn about the importance of nature. As one student said, "It's like having a small piece of nature right above our heads!" Scientists believe that if more buildings have green roofs, our cities 32. ______ (be) healthier and more sustainable. It's a simple idea with a big impact. Ⅶ. 任务型阅读。 The Amazon Rainforest is often called the "lungs of the Earth" because it produces about 20% of the world's oxygen. It is home to millions of species of plants and animals, many of which cannot be found anywhere else. However, the rainforest is disappearing at an alarming rate. Every minute, an area of rainforest the size of 20 football fields is cut down. The main reasons for this destruction are cattle farming, soybean farming, and logging. When trees are cut down, not only do animals lose their homes, but also the carbon stored in the trees is released into the atmosphere, contributing to global warming. In recent years, several countries have taken action to protect the Amazon. Brazil, for example, has increased patrols in the rainforest to stop illegal logging. The government has also made stricter laws to punish those who destroy the forest. As a result, the rate of deforestation has slowed down in some areas. International organizations are also helping. They work with local communities to provide alternative ways of making a living, such as eco-tourism and sustainable farming. This way, people can earn money without cutting down trees. Education is another important part of the effort. Schools in Brazil now include environmental education in their curriculum. Students learn about the importance of the rainforest and how to protect it. Some students even take part in tree-planting activities. Many experts believe that saving the Amazon is not just about protecting one forest—it is about saving the whole planet. As the famous saying goes, "The Amazon is not just Brazil's heritage, it is humanity's heritage." 33. Why is the Amazon Rainforest called the "lungs of the Earth"?（不超过10个词） ____________________________________________________________ 34. What are the main reasons for the destruction of the Amazon Rainforest?（列出至少两点，不超过15个词） ____________________________________________________________ 35. How has Brazil's government tried to protect the Amazon?（列出至少一点，不超过15个词） ____________________________________________________________ 【参考答案】 Ⅰ. 根据首字母及汉语提示填空。 1. cancel2. permit3. environmental4. protection5. survival Ⅱ. 用方框中所给词的正确形式填空。 6. endangered7. easier8. logos9. tourists Ⅲ. 根据所给汉语意思完成句子。 10. set up a group 11. 49 times as big as 12. provides; with 13. So far / Up to now 14. helps to ensure / helps ensure Ⅳ. 补全对话。 15. B16. A17. C18. D19. F Ⅴ. 阅读理解。 20. B21. C22. C23. B24. A Ⅵ. 语法填空。 25. becoming 26. or 27. which 28. them 29. slowly 30. bringing 31. to support 32. will be Ⅶ. 任务型阅读。 33. Because it produces about 20% of the world's oxygen. 34. Cattle farming, soybean farming, and logging. 35. By increasing patrols to stop illegal logging. / By making stricter laws to punish forest destroyers. (答出其中一点即可) 1 学科网（北京）股份有限公司 $