Unit 4 The Wonders of Nature 单元测试题 2025-2026学年人教版英语八年级下册

2025-2026学年八年级英语下册单元测试题 Unit 4 The Wonders of Nature 时间：90分钟 满分：100分 一、阅读理解 A Alex and his classmates are working on a project about the Great Lakes. Here is the information sheet they have made. Part 1: Facts The Great Lakes-Ontario,Huron,Michigan,Erie and Superior-are five freshwater giants. They span across eight American states and two Canadian provinces. Part 2: Comparison ●Lake Ontario This lake has the smallest surface area at 7,336 square miles. Three dams（大坝）control the flow of water downstream and include locks, so boats can enter from the Atlantic. ●Lake Huron This is the second largest lake by surface area in the system and home to Manitoulin Island,the world's largest freshwater island. ●Lake Michigan It is joined to Lake Huron by the five-mile-wide Straits（海峡）of Mackinac,though they are still classed as two separate bodies. ●Lake Erie With a depth of 64 metres, this is the shallowest of the Great Lakes. It is generally the warmest, but also gets frozen more quickly than the others. ●Lake Superior At 406 metres deep, the distance from the lake's surface to its deepest point is about the same as the length of four football pitches. Part 3: Covering an area of 94,250 square miles, these huge bodies of water take up more than one-fifth of the world's total fresh water. The Great Lakes provide drinking water for more than 40 million people, important shipping routes for more than 800 ocean ships, and keep a rich ecosystem for fishing and agriculture. They also support wildlife, the national economy and the environment. 1.Alex draws a map of the Great Lakes. Which number stands for Lake Ontario? A. B. C. D. 2.The underlined word“span”here means“____”. A. look like B. put away C. take up D. throw away 3.Alex wants to try ice fishing as early as possible.Which lake will he most probably choose? A. Lake Superior. B. Lake Erie. C. Lake Michigan. D. Lake Huron. 4.Alex finds something missing in Part 3.Which of the following will he put in the empty box? A. Value. B. Change. C. Protection. D. Development. 5.What is the main idea of the passage? A. It mainly introduces the names of the Great Lakes. B. It mainly describes the places of the Great Lakes. C. It mainly gives information about the Great Lakes. D. It mainly explains why the Great Lakes are there. B Jerry is a world-famous mountain climber. He has climbed many high mountains in the world so far. Starting in 2015, he and his friends spent two years on an adventure（探险）in South America, covering 7,800 miles. He was even named Adventurer of the Year by a famous geography magazine in 2018. Although Jerry achieved great success, he didn't feel fulfilled. He asked himself, “Is it enough to climb high mountains? Am I doing something helpful? How can I turn my adventures into something that can help the world?” Jerry has learned that scientists need plants, rocks and water samples（样本）from the places far away to do research. But scientists can't get there themselves as such places are hard to reach—only the bravest adventurers can make it. Jerry thought he could do something to help. He then came up with an idea. He set up a team of top adventurers to collect samples for scientists. By studying the samples, scientists could know more about the earth and find ways to protect it. Recently, Jerry and his friends have discovered a special plant on Mount Qomolangma. The samples they have brought back help scientists know how plants live in extreme（极端的）conditions. For Jerry, this kind of adventure is most satisfying. “Such adventures have made us see life in a different way. Now, being the best climber isn't important for me. What matters is doing something helpful while climbing mountains. There is still much more we can do,” Jerry said to a reporter. 6.What is Paragraph 1 mainly about? A. Jerry's friends. B. Jerry's achievements. C. High mountains. D. A geography magazine. 7.What does the underlined word “fulfilled” in Paragraph 2 mean? A. Satisfied. B. Lonely. C. Patient. D. Worried. 8.Why did Jerry set up a team of top adventurers? A. To make friends. B. To help scientists. C. To study plants. D. To train scientists. 9.What did Jerry and his friendsˈ adventures change? A. Their hobbies. B. Their friendship. C. Their understanding of life. D. Their living conditions. 10.What can be the best title for the text? A. Dangerous Mountain Climbing B. Important Scientific Discoveries C. Plants Found on High Mountains D. Adventures Turned into Something Greater C Stonehenge With a history of about 5,000 years, Stonehenge is one of the world wonders. It's a circle of stones of different heights. The stones used to be about 200 kilometres away. Now people still wonder how ancient people moved the huge stones without machines' help. Louvre Museum No visit to Paris is complete without a trip to Louvre Museum, one of the largest and most famous art museums in the world. About 35,000 works of art from different centuries are on show, of which the Mona Lisa is the best-known. Mount Qomolangma Heavy snow, cold winds and thin oxygen(氧气), Mount Qomolangma seems to say no to any climber who dreams about making it to the top of the world. Tenzing and Edmund were the earliest to reach the top, but they were up there for just 15 minutes before coming down. Lake District National Park In the north of England lies Lake District National Park, which is very beautiful, with hills, lakes and forest. Most tourists enjoy walking around the lakes and climbing mountains. Lake District National Park is also a perfect place to paint the beautiful countryside. 11.People are still wondering how ancient people ____. A. managed to move the huge stones without machines' help B. made different stones C. walked 200 kilometres D. wrote the history of machines 12.We can learn from the passage that ____. A. Stonehenge has a history of five hundred years B. Lake District National Park is in the south of England C. the works of art in Louvre Museum are from the same century D. Tenzing and Edmund were the first to reach the top of Qomolangma 13.____ is a great choice to enjoy walking around the lakes. A. Stonehenge B. Louvre Museum C. Mount Qomolangma D. Lake District National Park 14.The following make it difficult to reach the top of Qomolangma EXCEPT ____. A. heavy snow B. large lakes C. cold winds D. thin oxygen 15.The passage is probably taken from ____. A. a diary B. a news report C. a travel guide D. a poem D Are there any lakes in your hometown? What colour are they? According to a study, about one third of the world's lakes are blue. But global warming may lead them to turn green or even brown, and countries with most lakes may be influenced the most. If the temperature continues to rise, one in every ten lakes might change colour. Xiao Yang from a university in the US and his team analyzed（分析）the colour of more than 85,000 lakes based on the satellite photos taken from 2020 to 2024. The study found lakes in areas with summer temperatures below 19℃ are more likely to be blue than warmer areas. According to the research, the colour of a lake is partly decided by what's in the water. Water molecules（分子）take in the long wavelengths（波长）of sunlight, such as red and yellow, leaving behind the shorter ones. This makes the water look green or blue. In short, the cleaner the water is, the bluer it looks. Lakes are an important part of our environment. Their colour is one of the oldest ways to tell if an ecosystem is healthy. Humans get their drinking water from lakes, rivers and groundwater. As they become greener, people may lose lots of clean water. Because of this, dealing with the water will probably cost more. At the same time, blue lakes are also places that help people stay peaceful. Some countries even consider blue lakes as spiritual（精神的）places. As these lakes disappear or change colour, people may feel upset. 16.What's the main reason that changes the colour of lakes? A. A rise in temperature. B. A drop in fish numbers. C. More sunlight during the day. D. An increase in the lake's depth. 17.What can we infer from the text about lakes in areas with summer temperatures above 19℃? A. They are always blue. B. They are more likely to be green. C. They provide cleaner drinking water. D. They are not influenced by global warming. 18.What's the main idea of Paragraph 2? A. Why it is important for people to protect the environment. B. What different countries do to keep their lakes clean. C. How water molecules absorb long wavelengths of sunlight. D. Why cleaner lakes seem to be much bluer than dirtier ones. 19.What is a possible result if lakes become greener? A. More people will go swimming in them. B. The water molecules will take in more sunlight. C. They will become important spiritual places. D. It may cost more to deal with the water. 20.What does the text mainly talk about? A. Satellite photos are useful for analyzing lakes. B. Lakes are important sources of drinking water. C. Global warming may cause lakes to change colour. D. Blue lakes have spiritual meaning in some countries. 二、补全对话 A: Hello, Jane! Can I ask you some questions? B: Yes, of course. A:      (21)      B: The Burj Khalifa Tower is the highest tower in the world. A:      (22)      B: It's 828 metres high.      (23)      A: Where does it lie? B: It lies in Dubai.      (24)      A: Yes, I am going to visit it next month. B: Great!      (25)      A: Thanks a lot. B: You're welcome. A. Have a good time. B. How high is it? C. Are you going to visit it? D. Let's talk about the natural wonders. E. What's the highest tower in the world? F. And it has a total of more than 160 floors. 三、完形填空 If you ask most people about desert, they might describe it as sandy and rocky. Arches National Park in Utah shows a      (26)      scene. Visitors to Arches are amazed by the life and colour in the     (27)     . Wildflowers and cactuses(仙人掌) add bright colours to the red rock. Blue jays(松鸦) and red-tailed hawks(鹰) fly up high in the sky. Of course, the park is most      (28)      its landforms(地形).More than 2,000      (29)     natural arches(拱形结构) have been found in the park. They were formed over the course of 100 million years, as wind and water      (30)      broke down the rock. Although the arches took millions of years to form, it takes only seconds to      (31)      an arch forever. In 1991, Landscape Arch, the park's largest arch, lost a piece of rock, which is 60 feet long. The arch still stands, but it is now much      (32)      to break. In the beauty of this desert park, roads and cars are the only interruption(干扰) to the      (33)      scenery. But they make it easy for people to      (34)      nature's great work while it is still there. The park's new entry system allows      (35)     to buy tickets up to six months earlier. In this way, they can better enjoy the natural beauty in the park in an organized way. 26.A. serious B. similar C. different D. same 27.A. forest B. river C. mountain D. desert 28.A. proud of B. connected to C. scared of D. famous for 29.A. personal B. amazing C. simple D. impossible 30.A. slowly B. quickly C. suddenly D. easily 31.A. protect B. forget C. build D. lose 32.A. easier B. harder C. funnier D. stronger 33.A. common B. ancient C. natural D. strange 34.A. help B. enjoy C. check D. express 35.A. students B. scientists C. parents D. travellers 四、阅读填空 One summer, my family went on a journey and saw some of the most amazing sights in America. Our favourite place was Niagara Falls. It   (36)   (include) three different waterfalls: Horseshoe Falls, American Falls and Bridal Veil Falls. They go into the Niagara River and form a natural boundary(分界线) between the United States and Canada. There are several different ways to experience the  (37)   (power) waters: on foot, by boat or by air. The first night, we walked   (38)   Niagara Falls State Park to American Falls. We could   (39)   (near) hear the loud sound of the water clearly   (40)   we reached the falls. During our following tour, the falling water   (41)   (surprise) us when we were standing just six metres away from Bridal Veil Falls. It was a perfect place   (42)   (experience) the power of the falls—and to get   (43)   (we) very wet! Actually, we haven't travelled for two years. Now I'm looking forward to   (44)   (have) a wonderful trip. I'm sure we will visit great   (45)   (wonder) like Niagara Falls. There is so much to see in the world. 五、任务型阅读 Everyone knows that forests help fight climate change. However, a recent scientific report shows that the world lost 300,000 square kilometres of forests in 2024. That's an area about the size of Italy. According to the report, for the first time ever, fires were the biggest cause of forest loss. Take Brazil for example. This country has the largest area of rainforest in the world. Last year, it suffered from a long time of dry weather. Wildfires broke out and spread（蔓延）. As a result, about 25,000 square kilometres of its primary（原始的）rainforest disappeared in the country. This meant fires caused 66% of its forest loss. And the second biggest cause of the world's forest loss was clearing land for farming. People need farmland, so they keep cutting down forests every year. In 2024, the area of forest cleared for farming increased by 14% worldwide. The situation was more severe in developing countries. For example, Bolivia's forest loss doubled in 2024. Without doubt（疑问）, something must be done to save the forests. Experts call on governments（政府）, businesses and people to work together before it is too late. It seems that China has set a good example. Thanks to cooperation（合作）at many levels, China had the biggest increase in forest area among all countries in 2024. That year alone, newly-planted trees in China covered an area of nearly 45,000 square kilometres, according to a news report. If more countries start to take action like China, the earth will become a greener planet. 46.Why does the writer mention the size of Italy in Paragraph 1?                                                                                                      47.What are the two main causes of forest loss according to the passage?                                                                                                      48.What does the underlined word “severe” in Paragraph 3 mean?                                                                                                      49.What does the last paragraph advise us to do about forest loss?                                                                                                      50.Do you have any good suggestions for students to help protect the forests?                                                                                                      六、书面表达 假如你来自甘肃,你校英语社团打算开展主题为“为家乡旅游业助力”的社团活动,鼓励同学们宣传家乡的自然景观。你计划在本次活动中介绍有“沙漠第一泉”之称的月牙泉,请你根据以下提示内容,写一篇英语发言稿。词数100左右(文中已给出内容不计入总词数)。 月牙泉(Crescent Spring) 位置 鸣沙山(Mingsha Mountain)脚下 大小 长约242米，宽约50米；最深处可达5米 特点 即使在沙漠中，泉水依然清澈、甘甜 活动 骑骆驼(riding camels)、滑沙(sand sliding)、露营 My dear friends, I'd like to introduce the Crescent Spring in my hometown to you. _______________________________________________________________________________ _______________________________________________________________________________ _________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________​​​​​​​ That's all. Thanks for listening! 第1页，共1页 学科网（北京）股份有限公司 $ 2025-2026学年八年级英语下册单元测试题 Unit 4 The Wonders of Nature 答案 一、1~5.D、C、B、A、C 6~10.B、A、B、C、D 11~15.A、D、D、B、C 16~20.A、B、D、D、C 二、21~25.E、B、F、C、A 三、26~35.C、D、D、B、A、D、A、C、B、D 四、36.includes 37.powerful 38.through 39.nearly 40.Before 41.surprised 42.to experience 43.ourselves 44.having 45.wonders 五、46.To show how terrible forest loss was/the world lost many forests in 2024. 47.The forest fires and farming in the forests are the two main causes. 48.It means serious. 49.We should work together with others to help save the forests. 50.Students can tell people the importance of forests and call on more people to help protect the forests together.（答案合理即可） 六、范文 My dear friends, I'd like to introduce the Crescent Spring in my hometown to you. Located at the foot of the Mingsha Mountain, it is known as the “Best Spring in the Desert”. The Crescent Spring is about 242 metres long and 50 metres wide. Its deepest part can be up to 5 metres. Although the spring is in the desert, its water is very clear and sweet. As one of the most famous places in Gansu, it attracts a lot of visitors every year. You can ride camels here, as well as enjoy the sand sliding and camping. So come and visit it for a special experience. I'm sure you will love it. That's all. Thanks for listening! 第1页，共1页 学科网（北京）股份有限公司 $