Unit4 The wonders of nature 单元语法专项训练-2025-2026学年人教版八年级英语下册+答案

这是一份Unit4 The wonders of nature 单元语法专项训练-2025-2026学年人教版八年级英语下册+答案，共9页。
人教版八年级英语下册Unit4 The wonders of nature 单元语法专项训练满分100分一、选出不同类的一项（5分）( )1. A. glacier B. canyon C. phenomenon D. waterfall( )2. A. erupt B. exist C. amazing D. flow( )3. A. because B. though C. unless D. therefore( )4. A. had discovered B. has been exploring C. will have seen D. is wondering( )5. A. whatever B. whichever C. whoever D. however二、单项选择题（共15分）The scientists ______ the mysterious deep-sea ecosystem for over a decade and they're still collecting vital data.A. study B. studied C. have studied D. have been studying—Could you tell me ______ the ancient rock formations took shape?—It's estimated to be over 10 million years.A. how far B. how long C. how often D. how soonHe told his teammates that he _ the rare plant species in the rainforest the following month.A. will search for B. searches for C. would search for D. has searched forBefore the environmental report was released, the researchers ______ the impact of climate change on glaciers for five years.A. studied B. have studied C. had studied D. will studyThey ______ the source of the underground river since dawn, but the harsh terrain keeps delaying their progress.A. explore B. explored C. have explored D. have been exploring“We have never encountered such a spectacular natural wonder,” they exclaimed. They exclaimed that they ______ never ______ such a spectacular natural wonder.A. have; encountered B. had; encountered C. were; encountering D. would; encounterI doubt ___ the newly found cave is safe for tourists to visit without professional guidance.A. that B. if C. what D. whichOur geography teacher reminded us that the Pacific Ocean ____ the largest ocean on Earth.A. is B. was C. will be D. has beenFor the past eight years, the team ______ efforts to protect the endangered species in the nature reserve.A. makes B. made C. has made D. has been making“I will submit the research paper on natural wonders next week,” she said. She said that she ______ the research paper on natural wonders the next week.A. submits B. submitted C. will submit D. would submitDo you know ______ ancient people managed to build such magnificent structures in harmony with nature?A. when B. how C. what D. whereThe guide asked if we ______ any experience in hiking through mountainous areas before.A. have B. had C. will have D. has hadOver the past century, the global temperature ______ significantly, affecting many natural wonders.A. rises B. rose C. has risen D. is risingI'm curious ______ the Northern Lights usually appear in the polar regions.A. why B. that C. which D. whoShe has been ______ the unique rock patterns in the desert for hours, trying to capture their beauty in her sketchbook.A. looking up B. looking after C. looking for D. looking at三、用括号里单词的正确形式填空（共20分）The explorer ______ (investigate) the origin of the volcanic island for four years and is about to publish his findings.I wonder if the team ______ (complete) the survey of the coral reef by the end of this year.The traveler said he ______ (visit) seven natural wonders around the world before he came to China.They ______ (monitor) the water level of the lake since the start of the rainy season.Do you know ______ (whose) camera was used to take these amazing photos of the waterfall?He asked me how long I ______ (be) fascinated by the mysteries of nature.The teacher told us that the force of gravity ______ (keep) the planets in their orbits.She has been ______ (wait) for the perfect moment to take a photo of the sunrise over the mountain.“I will organize a volunteer activity to clean up the natural reserve,” Mike said. Mike said that he ______ (organize) a volunteer activity to clean up the natural reserve.I don't know ______ (when) the next total solar eclipse will occur in our region.The researchers ______ (work) on a project to preserve the ancient forest all year round.He asked me ______ (if) I had ever witnessed the formation of a rainbow after a thunderstorm.She said she ______ (can) describe the beauty of the snow-capped mountains in great detail.I have been ______ (learn) about different types of natural disasters and their impacts since last semester.Do you know ______ (where) the deepest freshwater lake in Asia is situated?By the time we arrived at the national park, the rangers ______ (already/guide) three groups of visitors through the forest.The reporter asked the expert what steps we ______ (take) to prevent the damage to natural wonders.They ______ (not find) the rare bird species in the wetland yet, but they are still searching.“I am studying the migration patterns of whales,” the marine biologist said. The marine biologist said that he ______ (study) the migration patterns of whales.Could you tell me ______ (how) we can balance economic development with the protection of natural wonders?四、按要求改写句子（共20分）She said, “I have finished my research on the Amazon rainforest.”（改为间接引语）She said that ______ ______ finished ______ research on the Amazon rainforest.I want to know. Will they launch the expedition to the Arctic next spring?（合并为宾语从句）I want to know ______ they ______ ______ the expedition to the Arctic next spring.The students have been preparing for the “Natural Wonders” exhibition for two weeks.（对划线部分提问）______ ______ have the students been preparing for the “Natural Wonders” exhibition?“We can protect the coral reefs by reducing ocean pollution,” the experts said.（改为间接引语）The experts said that ______ ______ protect the coral reefs by reducing ocean pollution.Do you know? What leads to the formation of the unique stone pillars in this area?（合并为宾语从句）Do you know ______ ______ the formation of the unique stone pillars in this area?The geologists have been studying the volcanic activity in this region since 2018.（改为一般疑问句）______ the geologists ______ studying the volcanic activity in this region since 2018?“I will participate in the international conference on natural wonders next year,” he said.（改为间接引语）He said that he ______ ______ part in the international conference on natural wonders the next year.I don't know. Which natural wonder should we choose for our group project?（合并为宾语从句）I don't know ______ natural wonder ______ ______ choose for our group project.They have been traveling through the savanna for a week to observe wild animals.（对划线部分提问）______ ______ they been traveling through the savanna for a week?“I saw a rare meteor shower over the mountain last night,” Lily said.（改为间接引语）Lily said that she _____ _____ a rare meteor shower over the mountain ______ ______ night.五、连词成句（共10分）the, Great Barrier Reef, one of, the, most, spectacular, is, natural wonders, of, the world (.)we, how, can, the, balance, protection, of, natural wonders, with, human development (?)the, power, of, nature, more, is, than, we, imagine, powerful, could (.)when, visiting, natural reserves, we, the, follow, must, rules, strictly, to, avoid, causing, damage (.)understanding, of, natural phenomena, help, can, us, better, protect, the, wonders, of, our planet (.)六、完形填空（共10小题，每小题1分，计10分）The connection between humans and the wonders of nature is profound and timeless. For centuries, people have sought to understand and communicate with the natural world, drawing inspiration and 1.______ from its beauty and mystery.When we immerse ourselves in nature, we experience a sense of calm that is hard to find in busy urban life. The rustle of leaves in the forest, the roar of waterfalls, and the glow of stars in the night sky—all these elements speak to us in their own unique way. To truly connect with nature, we need to be attentive 2.______. We must put aside our distractions and focus on the sights, sounds, and smells around us.Many scientists and explorers 3.______ the secrets of nature for generations. From studying the migration of birds to exploring the depths of the ocean, their work has helped us understand how the natural world functions. Their efforts remind us that nature's wonders are not just beautiful—they are also complex and fragile systems that require our care.Respect is another key aspect of communicating with nature. When we visit natural wonders, we should act as guests, not masters. We should not pick flowers, disturb wildlife, or leave behind trash. These small acts of respect 4.______ preserve nature's beauty for future generations.Some people argue that in the digital age, we are losing touch with nature. While it's true that many of us spend more time indoors, 5.______ with screens, the desire to connect with the natural world remains strong. More and more people are choosing to spend their weekends hiking, camping, or exploring national parks, seeking to rekindle their bond with nature.In essence, communicating with nature is a two-way process. It requires us to listen as much as we observe, and to give as much as we take. By 6.______ this connection, we not only enrich our own lives but also contribute to the preservation of the planet's most precious treasures.The wonders of nature are gifts that should be cherished. They teach us about patience, resilience, and the interconnectedness(相互联系，相互依存) of all living things. 7.______ we continue to nurture our relationship with nature, we will ensure that these wonders endure for centuries to come.Whether we are standing at the foot of a towering mountain, walking along a quiet beach, or simply watching a sunset, we are engaging in a form of communication with the natural world. This communication 8.______ us humility, reminding us that we are part of something much larger than ourselves.In a world facing environmental challenges, our connection with nature is more important than ever. It inspires us to take action to protect the planet and its wonders, ensuring that future generations can also experience the joy and awe of 9.______ with nature.So, let us embrace the opportunity to connect with the wonders of nature. Let us listen to its voice, respect its power, and work together to protect it. In doing so, we will find not only peace and fulfillment but also the strength to build a more sustainable future for all.( )1. A. knowledge B. confusion C. chaos D. sadness( )2. A. listeners B. speakers C. observers D. performers( )3. A. have been exploring B. explore C. explored D. will explore( )4. A. help B. helps C. helped D. will help( )5. A. engage B. engaging C. engaged D. to engage( )6. A. nurturing B. breaking C. ignoring D. ending( )7. A. Unless B. If C. Though D. Because( )8. A. bring B. brings C. brought D. will bring( )9. A. communicating B. fighting C. competing D. struggling( )10. A. fragile B. strong C. rigid D. temporary七、阅读理解（共10分）（一）The Aurora Borealis（北极光）, also known as the Northern Lights, is one of the most breathtaking natural wonders on Earth. This celestial phenomenon occurs in the polar regions, where charged particles from the sun collide with gases in the Earth's atmosphere, creating a dazzling display of colored lights that dance across the night sky.Experiencing the Northern Lights is a once-in-a-lifetime event for many people. To fully appreciate this wonder, it's important to approach it with patience and an open mind. The lights are unpredictable—they may appear suddenly and fade away just as quickly, or they may linger for hours, painting the sky in shades of green, purple, and pink.Communicating with this natural wonder means more than just watching it. It involves feeling the cold air on your skin, listening to the silence of the Arctic night, and marveling at the sheer power of the sun's energy. Many who have witnessed the Northern Lights describe it as a spiritual experience, one that makes them feel connected to the universe in a profound way.Protecting the Northern Lights and their habitat is crucial. Light pollution from cities and human activities can dim the visibility of the lights, making it harder to see them. By reducing light pollution and preserving the Arctic environment, we can ensure that future generations will also have the chance to witness this amazing natural phenomenon.( )1. What causes the Northern Lights?A. Collisions between charged particles and atmospheric gases.B. Volcanic eruptions in the polar regions.C. Lightning storms in the Arctic.D. Human activities in the polar areas.( )2. Why is patience important when experiencing the Northern Lights?A. Because the lights are always visible.B. Because the lights are unpredictable.C. Because the Arctic is very cold.D. Because the trip to see them is long.( )3. What does communicating with the Northern Lights involve?A. Taking photos only.B. Feeling, listening, and marveling.C. Talking to other visitors.D. Studying astronomy books.( )4. What threatens the visibility of the Northern Lights?A. Climate change.B. Light pollution and human activities.C. Wildlife in the Arctic.D. Lack of snow.( )5. What is the main idea of the passage?A. The history of the Northern Lights.B. How to photograph the Northern Lights.C. The experience and protection of the Northern Lights.D. The best time to see the Northern Lights.（二）Natural wonders are not only sources of beauty but also vital to the health of our planet. From rainforests（热带雨林） that produce oxygen to oceans that regulate the climate, these wonders play a crucial role in maintaining the Earth's ecological balance. Communicating with and protecting them is essential for our survival.Rainforests are often called the “lungs of the Earth” because they absorb carbon dioxide and release oxygen. They are also home to millions of plant and animal species, many of which are found nowhere else on Earth. However, rainforests are being destroyed at an alarming rate due to deforestation for agriculture and logging. This destruction not only threatens biodiversity but also contributes to climate change.Oceans are another vital natural wonder. They cover over 70% of the Earth's surface and support countless marine species. Oceans also help regulate the planet's temperature by absorbing heat from the sun. Unfortunately, ocean pollution, overfishing, and ocean acidification（海洋酸化） are putting these delicate ecosystems at risk. To protect our oceans, we need to reduce plastic waste, support sustainable fishing practices, and address climate change.Mountains are also important natural wonders. They provide freshwater for billions of people, support unique ecosystems, and offer recreational opportunities for outdoor enthusiasts. However, mountain regions are facing threats such as deforestation, soil erosion, and the effects of climate change, including melting glaciers. Protecting mountains means preserving their ecosystems and ensuring that they continue to provide essential resources for future generations.( )1. Why are rainforests called the “lungs of the Earth”?A. Because they are home to many animals.B. Because they absorb carbon dioxide and release oxygen.C. Because they are large and green.D. Because they produce a lot of rain.( )2. What is the main threat to rainforests?A. Climate change.B. Deforestation for agriculture and logging.C. Ocean pollution.D. Soil erosion.( )3. How do oceans help regulate the Earth's temperature?A. By absorbing heat from the sun.B. By producing oxygen.C. By supporting marine species.D. By reducing plastic waste.( )4. What do mountains provide for billions of people?A. Food.B. Freshwater.C. Timber.D. Minerals.( )5. What is the main idea of the passage?A. The beauty of natural wonders.B. The importance of natural wonders and the threats they face.C. How to explore natural wonders.D. The history of natural wonders.八、句子改错（10分）There were no any national parks in this area fifty years ago. ________He can describes the formation of stalactites in caves very clearly. ________We haven't visited the natural reserve since we go there last summer. ________My teacher has recommended a book about natural wonders to me the day before yesterday. ________There was plenty of rain in the mountainous region last month, so the rivers flood slightly. ________She often goes camping with her classmates in weekends to enjoy the beauty of nature. ________The little boy is 10 years old and he is interesting in all kinds of natural phenomena. ________They will visit the ancient stone forest when they will have free time next autumn. ________He didn't finish to write his essay about the protection of natural wonders yesterday. ________There is going to have a science lecture about natural wonders in our school next Monday. ________答案一、选出不同类的一项。1-5 CCDDD二、单项选择题。1-5 DBCAD 6-10 BBADD 11-15 BBCAD三、用括号里单词的正确形式填空。has been investigating 2. will have completed 3. had visited 4. have been monitoring 5.whose 6.had been 7. keeps 8. waiting 9. would organize 10. when 11. have been working 12.if 13. could 14. learning 15. where 16. had already guided 17. would take 18. haven't found 19.was studying 20. how四、按要求改写句子。she had; her 2. if/whether; will launch 3. How long 4. they could 5. what leadsHave; been 7. would take 8. which; we should 9. Why have 10. had seen; the night before五、连词成句。The Great Barrier Reef is one of the most spectacular natural wonders of the world.How can we balance the protection of natural wonders with human development?The power of nature is more powerful than we could imagine.When visiting natural reserves, we must follow the rules strictly to avoid causing damage.Understanding of natural phenomena can help us better protect the wonders of our planet.六、完形填空。1-5 AC AAB 6-10 ABBAA七、阅读理解。（一）1-5 ABBBC（二）1-5 BBABB八、句子改错。去掉any 2. describes→describe 3. go→went 4. has recommended→recommended 5. flood→flooded 6.in→on 7. interesting→interested 8. 去掉第二个will 9. to write→writing 10. have→be