Unit5单元测试C卷2026-2027学年人教版英语八年级上册

**基本信息** 本单元卷以野生动物保护为主题，融合语法、阅读与综合运用，适配八年级上册Unit5复习，突出语言能力与环保意识培养，贴合核心素养中“人类命运共同体”与“思维品质”要求。 **题型特征** |题型|题量/分值|知识覆盖|命题特色| |----|-----------|----------|----------| |单项选择|10/10|条件句、定语从句、倒装等语法|基础语法与环保情境结合，如“保护野生动物”语境中考查unless用法| |阅读理解|15/30|北极熊、猎豹、重新野化等主题|信息提取与推理能力考查，语篇贴合“气候变化”社会热点，培养环保责任感| |任务型阅读|5/10|珊瑚礁保护|综合语言运用，需概括共生关系、保护措施，提升分析问题能力| |短文填空|10/10|东北虎监测|语法填空结合科学研究情境，如现在进行时、形容词最高级，渗透“可持续发展”理念|

2026-2027学年八年级上册英语Unit5单元测试 满分：100分 时间：90分钟 注意事项：  1. 全卷共八道大题，满分100分。 2. 请将答案写在答题卡上。 3. 选择题用2B铅笔涂黑，非选择题用黑色签字笔书写。 一、单项选择(共10小题；每小题1分，满分10分) 从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。 ( ) 1. ______ you protect the environment, many wild animals will continue to lose their habitats. A. IfB. BecauseC. UnlessD. Although ( ) 2. The tiger, ______ is one of the most powerful predators in the animal kingdom, is now facing extinction. A. thatB. whichC. whoD. whom ( ) 3. Not until the last panda was born in the reserve ______ the significance of the breeding program. A. did we realizeB. we realizedC. we did realizeD. realized we ( ) 4. The number of elephants in this area ______ dramatically over the past decade. A. has decreasedB. have decreasedC. is decreasingD. are decreasing ( ) 5. It is recommended that the government ______ stricter laws to prevent illegal hunting. A. passesB. passedC. passD. would pass ( ) 6. The reason ______ so many species are endangered is that their natural habitats are being destroyed. A. becauseB. whichC. for whichD. why ( ) 7. She is ______ a passionate conservationist that she spends all her free time protecting wildlife. A. soB. suchC. veryD. too ( ) 8. Only after years of conservation efforts ______ the population of Siberian tigers begin to recover. A. didB. hadC. haveD. has ( ) 9. I would rather you ______ in the nature reserve, where the animals can live freely. A. releaseB. releasedC. have releasedD. will release ( ) 10. — I’m worried about the endangered species we saw in the documentary. — ______. We can all do something to help. A. That’s not the pointB. I know the feelingC. Don’t worry about itD. That’s too bad 二、语法选择(共10小题；每小题1分，满分10分) 阅读下面短文，从各题所给的A、B、C、D四个选项中选出最佳选项。 Wildlife conservation is [11] ______ urgent issue that requires global attention. Many species are on the [12] ______ of extinction due to human activities. [13] ______ we do not take immediate action, we may lose these animals forever. One effective approach is the establishment of protected areas. These reserves provide a safe [14] ______ for animals to live and reproduce. In these areas, hunting and deforestation [15] ______ strictly prohibited. The success of these reserves depends on [16] ______ enforcement and community support. In addition to reserves, conservationists are using technology to [17] ______ wildlife. Satellite tracking and camera traps help scientists monitor animal [18] ______ and behavior. This data is crucial for developing [19] ______ conservation strategies. Education also plays a key role. By raising [20] ______ about the importance of biodiversity, we can inspire people to take action and protect the natural world for future generations. 11. A. an B. a C. the D. / 12. A. point B. edge C. side D. line 13. A. If B. Unless C. Although D. Because 14. A. habitat B. shelter C. home D. place 15. A. is B. are C. was D. were 16. A. effective B. effectively C. effect D. effectiveness 17. A. protect B. protecting C. protected D. protection 18. A. population B. populations C. popular D. popularize 19. A. effect B. effective C. effectively D. effectiveness 20. A. aware B. awareness C. awaring D. awared 三、完形填空(共15小题；每小题1分，满分15分) 阅读下面短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项。 In the heart of the Amazon rainforest, a team of conservationists has been [21] ______ tirelessly to protect the jaguar. This magnificent creature, once [22] ______ across South America, now faces a [23] ______ future. Its habitat has been [24] ______ by deforestation and human encroachment. The team has been using camera traps to [25] ______ the jaguar population. These cameras capture images of the animals, [26] ______ researchers to track their numbers and movements. The data [27] ______ has been gathered reveals a worrying trend: the jaguar population has decreased by 30% over the last decade. To [28] ______ this decline, the team has been working with local communities. They have [29] ______ education programs to teach farmers about sustainable land use. They have also helped establish [30] ______ areas where jaguars can roam freely. One of the [31] ______ challenges has been changing the attitudes of people who see jaguars as [32] ______. Despite the difficulties, there have been some [33] ______. In one area where conservation efforts were [34] ______, the jaguar population has stabilized. The team [35] ______ that with continued effort, it is possible to protect this iconic species for future generations. 21. A. working B. sleeping C. playing D. traveling 22. A. common B. rare C. extinct D. endangered 23. A. bright B. uncertain C. certain D. clear 24. A. expanded B. reduced C. protected D. preserved 25. A. monitor B. ignore C. hunt D. feed 26. A. allowing B. forcing C. ordering D. preventing 27. A. what B. that C. who D. whom 28. A. accelerate B. reverse C. ignore D. accept 29. A. created B. destroyed C. avoided D. delayed 30. A. protected B. urban C. agricultural D. industrial 31. A. smallest B. biggest C. easiest D. simplest 32. A. friends B. threats C. pets D. partners 33. A. failures B. successes C. challenges D. setbacks 34. A. abandoned B. implemented C. delayed D. ignored 35. A. fear B. hope C. doubt D. regret 四、阅读理解(共15小题；每小题2分，满分30分) 阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项。 A The Arctic is warming faster than any other region on Earth. This rapid warming is having a devastating impact on polar bears, which depend on sea ice for hunting, breeding and traveling. As the ice melts, polar bears are forced to swim longer distances and spend more time on land, where they have less access to food. Scientists have observed a decline in polar bear populations in several regions. In some areas, bears are thinner and have lower reproductive rates. The loss of sea ice also means that polar bears are coming into contact with humans more frequently, leading to increased conflict. Conservation efforts are focused on reducing greenhouse gas emissions and protecting critical habitats. Some organizations are working to establish protected areas where sea ice is expected to persist. Others are focusing on research to better understand how polar bears are adapting to changing conditions. However, the future of polar bears remains uncertain. If current warming trends continue, scientists predict that the polar bear population could decline by 30% by 2050. The fate of the polar bear is a stark reminder of the impact of climate change on wildlife. ( ) 36. What is the main threat to polar bears mentioned in the passage? A. Hunting.B. Climate change and sea ice loss.C. Pollution.D. Disease. ( ) 37. What is one effect of sea ice loss on polar bears? A. They have more food.B. They can breed more easily.C. They have to swim longer distances.D. They stay on ice all year. ( ) 38. What is one conservation effort mentioned in the passage? A. Relocating polar bears to zoos.B. Reducing greenhouse gas emissions.C. Feeding polar bears.D. Building more ice. ( ) 39. What is the predicted decline in polar bear population by 2050? A. 10%.B. 20%.C. 30%.D. 40%. ( ) 40. What is the main idea of this passage? A. Polar bears are adapting well to climate change.B. Climate change is threatening polar bears and conservation efforts are needed.C. Polar bears are dangerous to humans.D. The Arctic is not warming. B The cheetah is the fastest land animal, capable of reaching speeds of up to 120 kilometers per hour. However, speed alone cannot protect them from the threats they face. Cheetah populations have declined by over 90% in the last century, with only about 7,000 individuals remaining in the wild. One of the primary threats to cheetahs is habitat loss. As human populations expand, cheetahs are losing their hunting grounds. They are also increasingly coming into conflict with farmers, who sometimes kill cheetahs to protect their livestock. Additionally, the illegal pet trade and poaching for their skins pose significant threats. Unlike many other big cats, cheetahs have low genetic diversity. This makes them more vulnerable to disease and less adaptable to environmental changes. Conservation efforts are focusing on protecting habitats, establishing wildlife corridors, and working with local communities to reduce conflict. Innovative approaches are also being used. Some organizations are using trained dogs to guard livestock, reducing the need for farmers to kill cheetahs. Others are working to educate communities about the importance of cheetah conservation. While the future of the cheetah is still uncertain, there is hope that these efforts can prevent their extinction. ( ) 41. What is a primary threat to cheetahs mentioned in the passage? A. Lack of speed.B. Habitat loss and conflict with farmers.C. Climate change.D. Overpopulation. ( ) 42. Why do cheetahs have low genetic diversity? A. They are a new species.B. They have gone through population bottlenecks.C. They live in isolated groups.D. The passage does not say. ( ) 43. How are trained dogs used in cheetah conservation? A. To hunt cheetahs.B. To guard livestock and reduce conflict.C. To track cheetahs.D. To breed cheetahs. ( ) 44. What is the writer’s attitude towards the future of cheetahs? A. Certain that they will survive.B. Hopeful but uncertain.C. Highly pessimistic.D. Unconcerned. ( ) 45. What is the main purpose of this passage? A. To describe the cheetah’s speed.B. To explain the threats to cheetahs and conservation efforts.C. To encourage people to adopt cheetahs.D. To compare cheetahs with other big cats. C In recent years, the concept of rewilding has gained traction among conservationists. Rewilding involves restoring ecosystems to their natural state by reintroducing species that have been lost and allowing natural processes to resume. This approach goes beyond simply protecting existing habitats; it aims to create self-sustaining, biodiverse ecosystems. One of the most famous rewilding projects is the reintroduction of wolves to Yellowstone National Park in the United States. Wolves were eliminated from the park in the early 20th century. Their absence led to an overpopulation of elk, which overgrazed the vegetation, causing a cascade of ecological changes. When wolves were reintroduced in 1995, the ecosystem began to recover. The wolves controlled the elk population, allowing vegetation to regenerate. This in turn benefited other species, including birds, beavers and fish. Rewilding is not without its challenges. It can be controversial, as some people worry about the impact of reintroduced predators on livestock and human safety. It also requires significant investment and long-term commitment. However, proponents argue that rewilding is essential for restoring the health of our planet. As human activities continue to degrade natural habitats, rewilding offers a hopeful vision for the future. It reminds us that nature has the power to heal itself if we give it the chance. ( ) 46. What is rewilding? A. Protecting existing habitats.B. Restoring ecosystems by reintroducing lost species.C. Creating new species.D. Eliminating predators. ( ) 47. What effect did the reintroduction of wolves have on Yellowstone? A. It caused the elk population to increase.B. It led to overgrazing.C. It helped the ecosystem recover.D. It had no effect. ( ) 48. What is one challenge of rewilding mentioned in the passage? A. It is inexpensive.B. It is not effective.C. It can be controversial and requires investment.D. It is always successful. ( ) 49. What is the writer’s overall view of rewilding? A. It is a waste of time.B. It is essential for restoring the health of the planet.C. It is only for wealthy countries.D. It is too difficult to implement. ( ) 50. What is the main idea of this passage? A. Rewilding is a controversial idea.B. Rewilding is an important approach to ecosystem restoration.C. Wolves are dangerous animals.D. Yellowstone is a successful national park. D When we think of endangered species, we often think of iconic animals like pandas, tigers and elephants. However, there are many lesser-known species that are also facing extinction. One such species is the pangolin, a small mammal found in Asia and Africa. Pangolins are the most trafficked mammal in the world. They are hunted for their scales, which are used in traditional medicine, and for their meat. All eight species of pangolins are threatened with extinction. Despite being protected by international law, illegal trafficking continues. Conservationists are working to protect pangolins through a combination of measures. These include anti-poaching patrols, raising public awareness about the plight of pangolins, and working with local communities to provide alternative livelihoods. Technology is also being used: thermal imaging drones are being used to detect poachers at night. The pangolin’s story highlights the challenges of wildlife conservation in the modern world. It also reminds us that every species, no matter how small or obscure, plays a vital role in its ecosystem. Protecting pangolins is not just about saving one species; it is about preserving the health of the entire ecosystem. ( ) 51. Why are pangolins hunted? A. For their fur.B. For their scales and meat.C. For their bones.D. For their teeth. ( ) 52. How many pangolin species are threatened with extinction? A. All eight species.B. Five species.C. Three species.D. One species. ( ) 53. What technology is being used to protect pangolins? A. Satellite tracking.B. Thermal imaging drones.C. Camera traps.D. GPS collars. ( ) 54. What does the pangolin’s story remind us? A. Only large animals matter.B. All species play a role in their ecosystem.C. Conservation is easy.D. Pangolins are not important. ( ) 55. What is the main purpose of this passage? A. To describe the pangolin’s habits.B. To explain the threats to pangolins and conservation efforts.C. To encourage people to eat pangolin meat.D. To compare pangolins with other mammals. 五、用所给词的正确形式填空(共5小题；每小题1分，满分5分) 根据句意，用括号内所给单词的正确形式填空。 56. The ________ (survive) of many species depends on the protection of their natural habitats. 57. She is a devoted ________ (environment) who spends all her time on conservation projects. 58. The ________ (extinct) of the dodo bird was caused by human activity. 59. The government has implemented ________ (measure) to reduce deforestation. 60. Wolves are ________ (adapt) animals that can survive in a variety of climates. 六、选词填空(共10小题；每小题1分，满分10分) 阅读下面短文，从方框中选择适当的单词填空，使短文完整、通顺。每词限用一次。 biodiversity endangered coexistence ecosystem predators conservation sanctuaries deforestation poaching sustainable The preservation of wildlife is essential for maintaining the balance of our planet. [61] ______, the variety of life on Earth, is being threatened by human activities such as [62] ______, pollution and climate change. Many species are now [63] ______ with extinction. To address this crisis, [64] ______ efforts have been intensified. Protected areas and wildlife [65] ______ have been established to provide safe refuges for animals. These places allow species to thrive without the threat of hunting or habitat loss. However, [66] ______ remains a serious problem in many parts of the world, driven by the demand for illegal wildlife products. In addition to protecting species, it is important to maintain healthy [67] ______. Every organism, from the smallest insect to the largest [68] ______, plays a role in the web of life. Creating a harmonious [69] ______ between humans and wildlife is crucial. We must adopt [70] ______ practices that allow us to use natural resources without destroying the habitats that animals depend on. 61. ______ 62. ______ 63. ______ 64. ______ 65. ______ 66. ______ 67. ______ 68. ______ 69. ______ 70. ______ 七、任务型阅读(共5小题；每小题2分，满分10分) 阅读下面短文，根据短文内容回答问题。 Protecting Coral Reefs Coral reefs are often called the “rainforests of the sea.” They support about 25% of all marine species, despite covering less than 1% of the ocean floor. However, coral reefs are facing a serious threat: coral bleaching. Corals live in symbiosis with microscopic algae called zooxanthellae. These algae provide corals with food through photosynthesis and give them their vibrant colors. When water temperatures rise, corals become stressed and expel the algae. This causes the corals to turn white — a process called coral bleaching. If the stress continues, the corals can die. Coral bleaching is caused primarily by climate change, which raises ocean temperatures. Other factors include pollution, overfishing and ocean acidification. The frequency and severity of bleaching events have increased dramatically in recent decades. Scientists are working to protect coral reefs in several ways. Some are breeding corals that are more tolerant of higher temperatures. Others are working to reduce local stressors like pollution. Marine protected areas are also being established to give reefs a chance to recover. Individuals can help by reducing their carbon footprint and using reef-safe sunscreen. The health of coral reefs is crucial not just for marine life but also for humans. Over 500 million people depend on reefs for food, livelihoods and coastal protection. Protecting coral reefs is a global responsibility. 71. What percentage of marine species do coral reefs support? 72. What is the symbiotic relationship between corals and zooxanthellae? 73. What causes coral bleaching? 74. What are scientists doing to protect coral reefs? (Give two examples) 75. Why is protecting coral reefs important for humans? 八、短文填空(共10小题；每小题1分，满分10分) 阅读下面短文，在空白处填入一个适当的单词或括号内所给单词的正确形式。 In the Siberian wilderness, a group of scientists [76] ______ (monitor) the movements of a family of Amur tigers. These tigers, also known as Siberian tigers, are the [77] ______ (large) of all big cats. They are also one of the most endangered, with only about 500 [78] ______ (individual) remaining in the wild. The scientists use GPS collars to track the tigers’ movements. This data helps them understand [79] ______ the tigers live, hunt and breed. One of the tigers, [80] ______ (name) Boris, has been tracked for over three years. His territory [81] ______ (cover) an area of about 800 square kilometers. The main threat to Amur tigers is habitat loss. [82] ______ (Log) and human development have reduced their habitat to a fraction of its former size. Poaching is [83] ______ a serious problem. The scientists are working with the Russian government to [84] ______ (establish) new protected areas and anti-poaching patrols. Despite the challenges, there is hope. The Amur tiger population has shown signs of [85] ______ (recover) in recent years. The scientists are optimistic that with continued conservation efforts, these magnificent creatures will survive for generations to come. 76. ______ 77. ______ 78. ______ 79. ______ 80. ______ 81. ______ 82. ______ 83. ______ 84. ______ 85. ______ 参考答案 一、单项选择(1-10) 1. C   2. B   3. A   4. A   5. C   6. D   7. B   8. A   9. B   10. C 二、语法选择(11-20) 11. A   12. B   13. A   14. A   15. B   16. A   17. A   18. A   19. B   20. B 三、完形填空(21-35) 21. A   22. A   23. B   24. B   25. A   26. A   27. B   28. B   29. A   30. A 31. B   32. B   33. B   34. B   35. B 四、阅读理解(36-55) 36. B   37. C   38. B   39. C   40. B 41. B   42. D   43. B   44. B   45. B 46. B   47. C   48. C   49. B   50. B 51. B   52. A   53. B   54. B   55. B 五、用所给词的正确形式填空(56-60) 56. survival   57. environmentalist   58. extinction   59. measures   60. adaptable 六、选词填空(61-70) 61. Biodiversity   62. deforestation   63. endangered   64. conservation   65. sanctuaries 66. poaching   67. ecosystems   68. predators   69. coexistence   70. sustainable 七、任务型阅读(71-75) 71. About 25%. 72. The algae provide food and color to corals; corals provide a home for the algae. 73. Rising water temperatures (climate change), pollution, overfishing, and ocean acidification. 74. Breeding heat-tolerant corals and reducing local stressors like pollution. 75. Over 500 million people depend on reefs for food, livelihoods and coastal protection. 八、短文填空(76-85) 76. are monitoring   77. largest   78. individuals   79. how   80. named 81. covers   82. Logging   83. also   84. establish   85. recovery 学科网（北京）股份有限公司 $