Unit 5 A fine balance课时2 Understanding ideas 部分课时练习2026-2027学年外研版英语九年级上册

**基本信息** 本练习以“人与自然平衡”为主题，通过基础词汇→语法应用→语篇综合的三阶分层设计，实现语言能力与思维品质的协同培养，适配新授课知识巩固与适度提升需求。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |基础层|核心词汇（如drop, permit）、基础句型（条件句）|通过单词/词组默写、补全句子夯实语言基础，对应课时核心词汇与语法点| |进阶层|词形变化（如develop→development）、简单语篇填空|结合主题语境设计词形转换与单语篇填空，强化语法应用与初步语篇理解| |综合应用层|多体裁阅读（表格/记叙文/说明文）、完形填空、阅读综合|通过阅读还原、分层阅读（A-C篇）及完形填空，提升语篇逻辑分析与综合表达能力，渗透自然保护的文化意识|

2026-2027学年外研版九年级上 Unit 5 A fine balance 课时2 Understanding ideas 部分课时练习 一、单词默写（根据音标或中文写出英文单词） 1. ________ /drɒp/ v. 降低，下降 2. ________ /ˈtʊərɪst/ n. 游客 3. ________ /smɒɡ/ n. 烟雾 4. ________ /ədˈmaɪə/ v. 欣赏，观赏 5. ________ /mɑːk/ n. 痕迹，标记 6. ________ /ˈfɑːmlænd/ n. 农田，耕地 7. ________ /ˈræpɪd/ adj. 快速的，迅速的 8. ________ /pəˈmɪt/ v. 允许，使成为可能 二、词组默写（根据中文写出英文词组） 1. 从道路上消失 __________________________ 2. 在数量上增加 __________________________ 3. 与……相处，与……和谐共处 __________________________ 4. 砍伐 __________________________ 5. 重新开始，从头再来 __________________________ 6. 恢复平衡 __________________________ 三、根据要求完成句子（用所给中文提示补全英文句子，每空一词） 1. 如果人类消失了，自然界会发生什么？ If people are ______, what would happen to the natural world? 2. 没有人类，噪音会大大降低。 Without humans, the noise would ______ greatly. 3. 生态系统将开始重新恢复平衡。 Ecosystems would start to ______ again. 4. 自然奇观将再次展现它们的美丽。 Natural wonders would ______ all their beauty again. 5. 我们需要思考如何与自然和谐共处。 We need to think about how we ______ along with nature. 四、用括号内所给词的适当形式填空 1. Cars would ______ (appear) from the roads if humans were gone. 2. The ______ (develop) of human society has made us care less for nature. 3. The noise would drop greatly as traffic ______ (stop). 4. Trees would grow freely without the danger of ______ (cut) down. 5. The rapid ______ (grow) of cities has led to more pollution. 五、阅读短文，在空白处填入一个适当的词或用括号内所给词的正确形式填空 Have you ever imagined a world (1) ______ humans? It is (2) ______ interesting thought. In such a world, all human activities would stop. Streets would remain empty, (3) ______ factories would stop producing smoke. Animals would soon (4) ______ (increase) in number. Without the noise of traffic, they could hear each other (5) ______ (easy). Sea animals would not be troubled by tourists. Ecosystems would (6) ______ (balance) again. Trees would grow freely without (7) ______ (cut) down. The air would become cleaner, and natural wonders (8) ______ were hidden behind smog would appear again. However, we cannot wait (9) ______ imagination becomes reality. We need to think more about how to (10) ______ along with nature. We must protect our planet and permit nature to have her way. 六、阅读还原（从 A-F 六个选项中选出五个填入短文空缺处，使短文完整流畅） What Would Happen If Humans Disappeared? Have you ever thought about what would happen if humans suddenly disappeared from the earth? (1) ______ Let's explore some of the changes that would occur. First, cities would become empty. (2) ______ Without people to maintain them, buildings would gradually fall apart. Nature would slowly take back the cities. Second, animals would thrive. (3) ______ Sea animals would no longer be threatened by ships and plastic waste. Bird populations would increase as the skies become quieter. Third, the environment would recover. (4) ______ The air would become cleaner, and rivers would become clearer. The earth would become greener as forests spread. However, we don't need to disappear to help nature. (5) ______ By protecting our environment, we can create a better world for all living things. A. Pollution would slowly decrease. B. This is an interesting question to think about. C. We can make positive changes right now. D. Animals that were once endangered would return. E. The roads would have no cars, and the streets would have no people. F. Without humans, the earth would be a quieter place. (1) ________ (2) ________ (3) ________ (4) ________ (5) ________ 七、阅读理解（A篇为表格类，B篇为记叙文，C篇为说明文，每题仅有一个最佳选项） A    Human Activity Effect on Environment What Would Change Without Humans Traffic and transportation Air pollution, noise pollution Air would become cleaner, noise would drop Deforestation (森林砍伐) Loss of habitats, climate change Forests would regrow, wildlife would return Industrial production Water and air pollution Rivers would become cleaner, smog would disappear Tourism Disturbance to wildlife Animals would be less stressed Urban development Loss of natural spaces Nature would reclaim the land ( )1. What would happen to the air without traffic? A. It would become more polluted. B. It would become cleaner. C. It would stay the same. D. It would disappear. ( )2. What effect does deforestation have on the environment? A. It cleans the air. B. It creates more habitats. C. It causes loss of habitats and climate change. D. It makes rivers cleaner. ( )3. Without industrial production, rivers would become ______. A. cleaner B. dirtier C. deeper D. shorter ( )4. How does tourism affect wildlife? A. It helps animals grow. B. It disturbs wildlife. C. It gives animals more food. D. It protects animals. ( )5. If humans disappeared, cities would be ______. A. expanded B. modernised C. reclaimed by nature D. completely destroyed B    I recently read Alan Weisman's book "The World Without Us". It made me imagine what our world would be like if humans suddenly disappeared. At first, it seemed like a strange idea. But as I thought about it, I started to see the world differently. I took a walk in the park near my home. I imagined the same park without any people. The birds sang louder because they wouldn't be scared away by human noise. The trees grew taller because they wouldn't be cut down. The river was clearer because there was no pollution. I realised that we often take nature for granted. We don't notice the effects of our actions on the environment. But the book and my imagination showed me that we need to change our ways. When I got home, I decided to do something. I started recycling more, using less plastic, and walking instead of driving short distances. If we all make small changes, we can help nature without disappearing. ( )6. What did the writer do after reading the book? A. He wrote a book about nature. B. He took a walk and imagined a world without humans. C. He moved to the countryside. D. He stopped reading books. ( )7. In the writer's imagination, what happened to the birds? A. They disappeared. B. They sang louder. C. They flew away. D. They became quiet. ( )8. What did the writer realise during the walk? A. Humans are not important. B. We take nature for granted. C. Nature is not important. D. Animals are more important than people. ( )9. What did the writer decide to do after his experience? A. He decided to move to the countryside. B. He decided to start recycling and walk more. C. He decided to write a book. D. He decided to stop using cars completely. ( )10. What is the main message of this story? A. We should all disappear from the earth. B. Small changes can help nature. C. Books are not useful. D. Nature is not important to humans. C    Nature provides us with everything we need to survive—clean air, fresh water, food, and medicine. Yet, we often treat nature as if it is unlimited and replaceable. This is a dangerous way of thinking. When we cut down forests, we lose not only trees but also the habitats of countless animals. When we pollute rivers, we destroy the sources of drinking water for millions of people. When we use too much fossil fuels, we contribute to climate change, which affects the whole planet. But there is good news. It is not too late to change. Many people and organisations are working to protect the environment. We can all play a part by making more sustainable choices. We can reduce, reuse, and recycle. We can support products that are good for the environment. We can educate ourselves and others about the importance of nature. Caring for nature is not just about saving trees or animals. It is about saving ourselves. Our future depends on a healthy planet. We should remember the words of Montaigne: "Let us permit nature to have her way." ( )11. What is the main idea of the passage? A. Nature is not important for humans. B. We should take more from nature. C. We should care for nature because it sustains us. D. Nature cannot be damaged. ( )12. What happens when we cut down forests? A. Animals get more habitats. B. We lose animals' habitats and trees. C. The air becomes cleaner. D. The temperature decreases. ( )13. What does the author say about making changes? A. It is too late to make any changes. B. Only governments can make changes. C. We can all play a part by making sustainable choices. D. Changes are not necessary. ( )14. The phrase "reduce, reuse, and recycle" refers to ways to ______. A. make more products B. protect the environment C. use more resources D. destroy nature ( )15. According to the author, caring for nature is about ______. A. saving ourselves B. becoming famous C. making money D. finding new resources 八、完形填空（阅读下面的短文，从每题所给的A、B、C、D四个选项中选出最佳选项） Imagine a world (1) ______ humans. This is the question that Alan Weisman explores in his book “The World Without Us”. He (2) ______ that if humans disappeared, the environment would (3) ______ quickly. In the first few days, cars would stop (4) ______. The roads would become empty. The noise (5) ______ traffic would disappear. Animals would (6) ______ to explore the cities. Within months, plants would start to (7) ______ through the cracks in the pavement. In a few years, the forests (8) ______ were once cut down would (9) ______. Animals (10) ______ were endangered would return. The air (11) ______ become cleaner. The rivers would become clearer. The earth would become (12) ______ green again. However, we cannot wait (13) ______ nature to do everything on its own. We need to (14) ______ changes in our daily lives. We need to think about (15) ______ we get along with nature. It is time for us to act. ( )1. A. with B. without C. for D. by ( )2. A. thinks B. imagines C. says D. knows ( )3. A. recover B. disappear C. fall D. grow ( )4. A. moving B. running C. driving D. walking ( )5. A. for B. from C. with D. of ( )6. A. try B. start C. want D. refuse ( )7. A. cut B. disappear C. grow D. fall ( )8. A. who B. which C. whom D. whose ( )9. A. leave B. stay C. disappear D. return ( )10. A. who B. which C. whom D. when ( )11. A. would B. will C. shall D. should ( )12. A. very B. too C. much D. completely ( )13. A. for B. to C. at D. of ( )14. A. make B. take C. give D. have ( )15. A. why B. how C. when D. where 九、阅读综合（阅读下面的短文，完成表格并根据短文内容回答问题） A World Without Humans: The Return of Nature If humans disappeared from the earth, nature would gradually reclaim the world. In cities, buildings would start to decay (腐朽). Within 50 years, most wooden structures would have collapsed. Within 200 years, many stone buildings would also begin to fall. The city would slowly become a forest. In the oceans, without pollution and overfishing, fish populations would recover. Whales and dolphins, which are often disturbed by ship noise, would become more common. Coral reefs, which have been damaged by rising temperatures, would begin to regrow. In the air, the sky would become much clearer. Without the smoke from factories and vehicles, the air would be clean. The stars would be visible in the night sky as they were thousands of years ago. On the land, farms would turn back into forests and grasslands. The animals that once lived there would return. The earth would be a wild, beautiful place again—but there would be no one to enjoy it. This vision is both wonderful and sad. It reminds us that we have a responsibility to protect our planet. We do not need to disappear to make the world better. We just need to be more careful and caring. A. 完成下面的表格，每空一词。 Place Without humans, what would happen? In cities Buildings would (1) ______, and cities would become forests In the oceans Fish populations would (2) ______; coral reefs would regrow In the air The sky would become much (3) ______; stars would be visible On the land Farms would turn back into forests and (4) ______ B. 根据短文内容，回答下列问题。 5. What would happen to cities within 200 years without humans?   6. What does this vision remind us to do?   参考答案 一、单词默写 1. drop 2. tourist 3. smog 4. admire 5. mark 6. farmland 7. rapid 8. permit 二、词组默写 1. disappear from the roads 2. increase in number 3. get along with 4. cut down 5. start over 6. balance again / restore balance 三、根据要求完成句子 1. gone 2. drop 3. balance 4. present / show 5. get 四、用括号内所给词的适当形式填空 1. disappear 2. development 3. stopped 4. being cut 5. growth 五、阅读填空 1. without 2. an 3. and 4. increase 5. more easily 6. balance 7. being cut 8. that / which 9. till / until 10. get 六、阅读还原 1. B 2. E 3. D 4. A 5. C（F为多余选项） 七、阅读理解 A篇：1. B 2. C 3. A 4. B 5. C B篇：6. B 7. B 8. B 9. B 10. B C篇：11. C 12. B 13. C 14. B 15. A 八、完形填空 1.B 2. C 3. A 4. B 5. B 6.B 7. C 8. B 9. D 10. A 11.A 12. D 13. A 14. A 15. B 九、阅读综合 表格：1. decay / collapse 2. recover 3. clearer 4. grasslands 问答：5. They would begin to fall and become forests. 6. To protect our planet / To be more careful and caring. 学科网（北京）股份有限公司 $