Unit 4 The Wonders of Nature 单元检测卷2025-2026学年人教版八年级英语下册

人教英语八年级下册Unit 4 The Wonders of Nature 单元检测卷 一、 完形填空，（每小题1分，共15分） Nature is full of amazing wonders that surprise and inspire us. These natural treasures are not only beautiful but also 1 us how powerful our planet is. One of the most famous wonders is the Grand Canyon in the US. It is 446 kilometers long and 2 kilometers deep. Over millions of years, the Colorado River 3 this huge canyon. Standing at its edge, you will feel 4 small you are compared to nature. Another wonder is Mount Qomolangma, the 5 mountain in the world. It stands on the border between China and Nepal. Every year, many brave climbers try to reach its top, 6 only a few succeed. The cold weather and thin air make the climb very 7 . In Africa, Victoria Falls is a breathtaking 8 . The Zambezi River drops sharply here, creating a loud roar and thick mist. Local people call it “Mosi-oa-Tunya”, which 9 “the smoke that thunders”. We must protect these wonders. They are 10 for our planet’s balance. Many natural wonders are in danger 11 human activities like pollution and over-tourism. We should take action to 12 them so that future generations can also enjoy their 13 . Nature’s wonders are gifts from the earth. Let’s respect nature and live in 14 with it. Only in this way can we keep these amazing wonders 15 forever. 1. A. show B. tell C. ask D. teach 2. A. nearly B. hardly C. clearly D. simply 3. A. built B. formed C. made D. created 4. A. what B. how C. which D. that 5. A. highest B. tallest C. longest D. largest 6. A. and B. so C. but D. or 7. A. easy B. difficult C. boring D. interesting 8. A. sight B. view C. scene D. wonder 9. A. means B. says C. tells D. shows 10. A. important B. necessary C. useful D. helpful 11. A. because B. because of C. so D. thanks to 12. A. protect B. keep C. save D. care 13. A. beauty B. beautiful C. beauties D. beautifully 14. A. peace B. peaceful C. quietly D. silent 15. A. live B. alive C. lively D. living 二、 阅读理解（每小题2分，共40分） A The Great Barrier Reef is one of the most amazing natural wonders in the world. It lies off the coast of Queensland, Australia. It is the largest coral reef system on Earth, stretching over 2,300 kilometers. The reef is made up of billions of tiny coral polyps. These small animals build hard skeletons that form the reef. The Great Barrier Reef is home to thousands of marine species. You can find colorful fish, sea turtles, dolphins and even sharks here. It’s like a huge underwater park. Every year, millions of tourists visit the Great Barrier Reef. They come to snorkel, dive and enjoy the beautiful underwater world. The best time to visit is between June and October, when the weather is warm and dry. However, the Great Barrier Reef is in danger. Climate change is making the ocean warmer. This causes coral bleaching, which kills the coral. Pollution from farms and cities also harms the reef. Scientists and environmentalists are working hard to protect the reef. They hope that with everyone’s help, this beautiful wonder can be saved for future generations. 16. Where is the Great Barrier Reef? A. In the Pacific Ocean. B. Off the coast of Australia. C. In the Atlantic Ocean. D. Off the coast of Africa. 17. What is the Great Barrier Reef made of? A. Coral polyps. B. Fish. C. Sea turtles. D. Dolphins. 18. When is the best time to visit the reef? A. January to March. B. April to May. C. June to October. D. November to December. 19. What is the main danger to the reef? A. Too many tourists. B. Climate change. C. Overfishing. D. Water pollution. 20. What can we learn from the passage? A. The reef is 3,200 kilometers long. B. No sharks live in the reef. C. The reef is in good condition now. D. People are trying to protect the reef. B The Amazon Rainforest is another great natural wonder. It is the largest rainforest in the world, covering most of the Amazon Basin in South America. The rainforest spreads across nine countries, with most of it in Brazil. The Amazon Rainforest is very important for the Earth. It produces about 20% of the world’s oxygen, so it is called the “lungs of the planet”. It also absorbs a lot of carbon dioxide, which helps slow down global warming. There are millions of plants and animals in the Amazon. You can find jaguars, anacondas, macaws and many other rare species. Some plants in the rainforest are used to make medicine. Sadly, the Amazon Rainforest is disappearing. People cut down trees for farming, logging and building. Every year, thousands of square kilometers of rainforest are destroyed. This is bad for the environment and for the animals that live there. Protecting the Amazon Rainforest is necessary. Many countries and organizations are working together to stop deforestation. We should all do our part to save this amazing rainforest. 21. Where is the Amazon Rainforest mainly located? A. In Africa. B. In South America. C. In North America. D. In Asia. 22. Why is the rainforest called the “lungs of the planet”? A. It has many trees. B. It produces much oxygen. C. It is very large. D. It absorbs carbon dioxide. 23. Which of the following animals is NOT mentioned in the passage? A. Jaguars. B. Anacondas. C. Pandas. D. Macaws. 24. What is the main reason for the rainforest’s disappearance? A. Natural disasters. B. Human activities. C. Climate change. D. Animal attacks. 25. What is the writer’s opinion on protecting the rainforest? A. It’s easy. B. It’s unnecessary. C. It’s important. D. It’s impossible. C Mount Huangshan, also known as the Yellow Mountain, is one of China’s most famous natural wonders. It is located in Anhui Province in eastern China. Mount Huangshan is famous for its strange-shaped rocks, twisted pine trees, sea of clouds and hot springs. The mountain has many beautiful peaks. The highest peak is Lotus Peak, which is 1,864 meters high. When you climb to the top, you can enjoy amazing views of the mountains and clouds. The sea of clouds is especially beautiful at sunrise and sunset. Mount Huangshan has a long history. Many ancient Chinese poets and artists visited the mountain and wrote poems or painted pictures about its beauty. Today, it is a popular tourist attraction. Millions of visitors come every year to see its natural beauty. To protect the environment, the local government has made rules. Visitors must follow the rules, such as not littering and not damaging the plants. Cable cars are used to reduce the number of people climbing on foot, which helps protect the mountain. Mount Huangshan is a true wonder of nature. It shows the beauty of China’s natural landscape. 26. Where is Mount Huangshan? A. In Zhejiang Province. B. In Anhui Province. C. In Jiangsu Province. D. In Shandong Province. 27. What is Mount Huangshan famous for? A. High peaks and clean water. B. Strange rocks, pine trees, clouds and hot springs. C. Beautiful lakes and waterfalls. D. Ancient temples and towers. 28. What is the height of Lotus Peak? A. 1,684 meters. B. 1,846 meters. C. 1,864 meters. D. 1,648 meters. 29. Why does the local government use cable cars? A. To make climbing easier. B. To protect the mountain. C. To attract more visitors. D. To reduce traffic. 30. What can we know about Mount Huangshan? A. It’s in western China. B. No ancient poets visited it. C. It’s not a popular place now. D. It’s a beautiful natural wonder. D The Dead Sea is a unique natural wonder. It is a salt lake located between Israel, Jordan and Palestine. It is the lowest point on Earth, about 430 meters below sea level. The Dead Sea is very salty. The salt concentration is almost ten times higher than that of ordinary seawater. Because of the high salt content, people can float easily on the water without swimming. It’s a fun experience for visitors. The water of the Dead Sea is rich in minerals. Many people believe that the mud and water from the Dead Sea are good for skin diseases and other health problems. So many tourists come here for medical treatment and relaxation. However, the Dead Sea is shrinking. The water level is dropping every year. The main reasons are climate change and overuse of water from the Jordan River, which feeds the Dead Sea. If this continues, the Dead Sea may disappear one day. People are trying to save the Dead Sea. They are working to reduce water waste and protect the Jordan River. We hope that this special natural wonder will be protected and will exist for a long time. 31. Where is the Dead Sea? A. In Asia. B. In Africa. C. In Europe. D. In America. 32. Why can people float on the Dead Sea? A. The water is very deep. B. The water is very salty. C. The water is very calm. D. The water is very warm. 33. What is the Dead Sea famous for? A. Beautiful scenery. B. High salt content and minerals. C. Clear water. D. Large size. 34. What does the word “shrinking” mean in Chinese? A. 扩大 B. 消失 C. 缩小 D. 上涨 35. What is the main problem the Dead Sea faces? A. Pollution. B. Over-tourism. C. Water shortage. D. Climate change and water overuse. 三、补全文章（每小题2分，共10分） Nature is full of wonders, and waterfalls are some of the most beautiful ones. They are powerful, noisy and amazing to look at. 36 One of the most famous waterfalls in the world is Niagara Falls. It is located on the border between the US and Canada. 37 Every minute, millions of liters of water fall over the falls. The sound is so loud that you can hear it from far away. Another famous waterfall is Iguazu Falls in South America. It is made up of 275 small waterfalls. 38 The falls are surrounded by thick rainforest, so you can see many colorful birds and butterflies there. In China, Huangguoshu Waterfall is a great wonder. It is the largest waterfall in Asia. 39 The waterfall is about 77 meters high and 101 meters wide. It is very beautiful, especially after heavy rain. Waterfalls are not only beautiful but also important for the environment. They provide water for plants and animals. 40 We should protect them and enjoy their beauty. A. It is wider than any other waterfall in the world. B. There are many famous waterfalls around the world. C. They also help to keep the air clean and fresh. D. It is a popular place for movies and TV shows. E. Visitors can walk behind the waterfall and feel the spray. F. It is located in Guizhou Province in southern China. 四、 任务型阅读（每小题2分，共10分） Natural wonders are amazing gifts from the earth. They are formed over millions of years and show the beauty and power of nature. There are many kinds of natural wonders, including mountains, rivers, forests, waterfalls and caves. One famous natural wonder is the Great Wall of China. Wait, no, the Great Wall is a man-made wonder. Let’s talk about Jiuzhaigou Valley. It is a natural wonder in Sichuan Province. It is famous for its clear lakes, beautiful waterfalls and colorful forests. The water in the lakes is so clear that you can see the bottom. Another wonder is the Stone Forest in Yunnan. It is made up of many tall stone pillars. They look like trees, so people call it the Stone Forest. It is a very special place. Natural wonders are important for us. They help us learn about nature. They also bring us joy and peace. We should protect natural wonders. We should not litter or damage them. We should tell more people about their importance. Let’s love nature and protect its wonders. 41. How long does it take to form natural wonders?（不超过5个词） 42. Where is Jiuzhaigou Valley located?（不超过3个词） 43. What is Jiuzhaigou Valley famous for? 44. What is the Stone Forest made up of?（不超过5个词） 45. What should we do to protect natural wonders? 五、 短文填词（每小题1分，共10分） wonder, depth, dive, natural, below, surface, unusual, bottom, desert, distance Nature is full of amazing sights and great 46.______. When we travel around the world, we can enjoy different landscapes. Some people like exploring vast 47.______, while others prefer deep oceans. The ocean is one of the most 48.______ places on Earth. Its real beauty lies far 49.______ the sea level. If you 50.______ into the water, you will leave the bright 51.______ soon. As you go down, the 52.______ keeps increasing. At the quiet 53.______ of the ocean, you can see strange fish and colorful plants. It is really hard to imagine how far the 54.______ from the top to the bottom is. All these 55.______ views remind us to protect our beautiful nature forever. 六、 书面表达（15分） 请以“My Favorite Natural Wonder”为题，写一篇80-100词的短文，介绍你最喜欢的一个自然奇观，内容包括： 1. 它是什么；2. 它在哪里；3. 它的特点；4. 你为什么喜欢它。 要求： 1. 语句通顺，语法正确； 2. 包含所有要点，可适当发挥； 3. 词数80-100。 学科网（北京）股份有限公司 $