Unit 7 The natural world 课时4 Grammar 分层作业2026-2027学年译林版八年级英语上册

**基本信息** 本练习为初中英语Unit 7语法分层作业，以“基础巩固-语篇应用-思维进阶”三级递进路径，融合语言能力培养与思维品质提升，适配新授课知识内化需求。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |基础层|词汇（单词、短语默写）、基础句型（完成句子、句型结构分析）、语法应用（单项选择）|通过音标提示、中英互译等降低难度，如单词默写配音标，夯实语言基础| |进阶层|语篇理解（阅读理解、完形填空）|以青藏高原、落基山脉等自然主题语篇为载体，考查细节获取与逻辑推理，如完形填空聚焦生态适应与保护| |思维进阶层|综合应用与批判性思维|设置情感表达、问题解决任务，如“如何鼓励同学保护山地环境”，提升分析与创造能力，渗透文化意识|

Unit 7 The natural world 课时4 Grammar 分层作业 一、单词默写 1. ________ /ˈpɪkʃə(r)/ n. 图画；照片 2. ________ /ˈstriːm/ n. 小溪；溪流 3. ________ /ˈsteɪʃn/ n. 站点；车站 4. ________ /ˈklaɪmɪt/ n. 气候 二、短语默写 1. 相当多，不少 __________________________ 2. 以……为食 __________________________ 3. 在森林里 __________________________ 4. 空气和土壤 __________________________ 三、根据要求完成句子 1. 海拔高和气温低使得山地环境很特别。 High altitude and low temperatures ________ mountain environments ________. 2. 山地为许多动物提供栖息地，储存淡水并阻挡大风。 Mountains ________ ________ ________ many animals, ________ fresh water and ________ strong winds. 3. 这种植物能找到充足的空间，但是它们很难获得阳光。 This plant can find ________ ________ here, ________ it can hardly get enough sunlight. 四、写出下列句子的句型结构 1. My uncle offered me some useful advice yesterday.   2. The guide showed us the way to the mountain top.   3. The heavy rain made the river water rise quickly.   4. The local people consider these ancient trees very precious.   5. His discovery brought him worldwide recognition.   五、单项选择 1. I love mountain climbing, ________ I’m not strong enough to reach the top. A. and B. but C. or D. so 2. Follow the path ________ you’ll find a beautiful waterfall. A. or B. but C. and D. so 3. We can go hiking this weekend ________ we can stay at home and watch nature documentaries. A. and B. or C. but D. so 4. The structure of the sentence “The guide offered the tourists a map.” is ________. A. S+V+O B. S+V+P C. S+V+O+O D. S+V+O+C 5. The sentence structure of “We find this mountain region fascinating.” is ________. A. S+V B. S+V+O C. S+V+O+O D. S+V+O+C 六、阅读理解 Exploring the Qinghai-Tibet Plateau The Qinghai-Tibet Plateau in China is the highest plateau in the world, with an average altitude of over 4,000 metres. It is often called the “Roof of the World”. This vast region covers about 2.5 million square kilometres and is home to many unique species. Because of the high altitude, the weather on the plateau is very different from other places. The temperature changes greatly between day and night. Even in summer, the nights can be freezing cold. The air is thin and dry, making it hard for visitors to breathe at first. Despite these challenges, the plateau supports a surprising variety of wildlife. The Tibetan antelope, also known as the chiru, is a graceful animal with beautiful horns. It can survive the cold winters and thin air because of its thick fur and special breathing system. The plateau is also home to wild yaks, which are large, strong animals that provide meat, milk and wool for the local people. The Tibetan fox is another resident of this region, known for its cleverness and ability to hunt in the rocky landscape. However, the plateau faces problems. Climate change is causing the glaciers to melt at an alarming rate. Overgrazing by livestock is damaging the grasslands. Some animals are being hunted illegally. Scientists and conservation groups are working to protect this unique environment. They are setting up nature reserves and educating local people about the importance of wildlife protection. 1. What is the Qinghai-Tibet Plateau often called? A. The Green Land. B. The Roof of the World. C. The Frozen Land. D. The Great Plain. 2. What makes it hard for visitors to breathe on the plateau? A. The cold weather. B. The thin and dry air. C. The high mountains. D. The strong winds. 3. What does the underlined word “resident” in Paragraph 3 probably mean? A. Visitor. B. Tourist. C. Inhabitant. D. Hunter. 4. What is one of the problems facing the Qinghai-Tibet Plateau? A. Too many tourists coming every year. B. Climate change and melting glaciers. C. The population of wild animals is too large. D. Farmers are planting too many crops. 5. What is the main idea of this passage? A. The Qinghai-Tibet Plateau is the highest place on Earth. B. The Qinghai-Tibet Plateau is a unique ecosystem that needs protection. C. Only a few animals can live on the plateau. D. Visitors should never go to the plateau because it is dangerous. 七、完形填空 The Rocky Mountains stretch across North America from Canada to the United States. These mountains are known for their (1) ________ peaks, clear lakes, and dense forests. Many (2) ________ come here every year to hike, ski and enjoy the natural beauty. In the Rockies, the weather changes (3) ________. A sunny morning can quickly turn into a stormy afternoon. Temperatures can (4) ________ from above 20°C during the day to below freezing at night. This makes the mountains both beautiful and (5) ________. The mountains are home to many kinds of (6) ________. Bears, deer, eagles and mountain goats can all be found here. These animals have (7) ________ to the harsh conditions. For example, mountain goats have special hooves that help them climb steep rocks. Bears eat a lot in summer and autumn to (8) ________ fat for the long winter sleep. However, the Rocky Mountains are (9) ________ threats. Climate change is causing the glaciers to melt. More people are visiting the parks, (10) ________ can disturb the animals. Some forests are being damaged by insects. To protect this amazing place, the government has (11) ________ up national parks and wildlife reserves. Visitors are (12) ________ to follow strict rules to minimize their impact. Many (13) ________ are also working to plant trees and clean up the environment. By protecting the Rocky Mountains, we are not just saving (14) ________ beautiful landscapes. We are also (15) ________ the health of our planet. 1. A. flat B. smooth C. rocky D. low 2. A. tourists B. workers C. farmers D. drivers 3. A. slowly B. quickly C. gently D. rarely 4. A. drop B. rise C. flow D. shake 5. A. boring B. quiet C. dangerous D. popular 6. A. plants B. wildlife C. buildings D. machines 7. A. added B. led C. adapted D. pointed 8. A. waste B. store C. burn D. lose 9. A. fighting B. facing C. protecting D. solving 10. A. what B. which C. who D. where 11. A. set B. turned C. given D. brought 12. A. allowed B. forced C. required D. refused 13. A. governments B. companies C. organizations D. families 14. A. its B. their C. our D. your 15. A. destroying B. ignoring C. protecting D. challenging 八、思维进阶 Part 1: Read and Explore Mountains are one of the most impressive features of the natural world. They cover about 24% of the Earth’s land surface and are home to more than 15% of the world’s population. They provide fresh water, food and shelter for millions of people. However, mountain environments are fragile and face many challenges. One of the biggest threats is climate change. As global temperatures rise, mountain glaciers are melting at an alarming rate. This not only affects the ecosystems on the mountains but also the people living downstream who depend on the melted snow for water. Another threat is deforestation. In many mountain regions, trees are being cut down for timber and farming. This causes soil erosion and leads to landslides. It also destroys the habitats of many rare animals. When the forests disappear, the animals lose their homes and food sources. Tourism, while good for local economies, can also harm mountain environments. Too many visitors can cause pollution, disturb wildlife and damage natural landscapes. It is important to find a balance between development and protection. Despite these challenges, there is hope. Many organizations are working to protect mountain environments. National parks have been established to safeguard these areas. Sustainable farming practices are being encouraged. Local communities are being educated about the importance of conservation. By taking action now, we can ensure that future generations can continue to enjoy the beauty and benefits of mountains. Part 2: Skills Challenge Task 1: Understand the Story (基础理解) 1. What percentage of the Earth’s land surface is covered by mountains? A. About 15%. B. About 24%. C. About 30%. D. About 50%. 2. What is one of the biggest threats to mountain environments? A. Overpopulation. B. Climate change. C. Too many tourists. D. Lack of water. Task 2: Talk About Feelings (情感表达) 3. Complete the sentences with proper words: The writer might feel ________ when describing the beauty of mountains. (amazed/bored) People living downstream may feel ________ when mountain glaciers melt. (worried/excited) Readers might feel ________ to know that organizations are working to protect mountains. (hopeful/indifferent) Task 3: Be a Problem Solver (问题解决) 4. Imagine you are a student living near a mountain area. How would you use the information from the passage to encourage your classmates to protect the mountain environment?     Task 4: Critical Thinking (批判性思维) 5. Do you think developing tourism in mountain areas is more important than protecting the natural environment? Why or why not? Support your answer with information from the passage.     参考答案 一、单词默写 1. picture 2. stream 3. station 4. climate 二、短语默写 1. quite a few 2. feed on 3. in the forest 4. air and soil 三、根据要求完成句子 1. make; special / different 2. provide habitats for; store; block 3. plenty of space; but 四、写出下列句子的句型结构 1. S + V + O + O (主+谓+间宾+直宾) 2. S + V + O + O (主+谓+间宾+直宾) 3. S + V + O + C (主+谓+宾+宾补) 4. S + V + O + C (主+谓+宾+宾补) 5. S + V + O + O (主+谓+间宾+直宾) 五、单项选择 1. B 2. C 3. B 4. C 5. D 六、阅读理解 1. B 2. B 3. C 4. B 5. B 七、完形填空 1. C 2. A 3. B 4. A 5. C 6. B 7. C 8. B 9. B 10. B 11. A 12. C 13. C 14. A 15. C 八、思维进阶 Task 1: 1. B 2. B Task 2: 3. amazed; worried; hopeful Task 3 (示例): 4. We can start by saving water and planting more trees. We can also organize a clean-up day on the mountain and teach our classmates about the importance of protecting the environment. Task 4 (示例): 5. I think protecting the environment should come first. Tourism can bring money, but if we damage the environment, there will be no beautiful scenery for tourists to enjoy. The passage says tourism can cause pollution, disturb wildlife, and damage natural landscapes. We must find a balance between development and protection. 学科网（北京）股份有限公司 $