Unit 4 C 单元限时检测-【初中必刷题】2026-2027学年七年级上册英语同步课件（沪教版·新教材）

该初中英语课件围绕“Unit 4 The Earth”主题，系统整合环境保护相关词汇、阅读策略与写作表达，通过完形填空、阅读理解、语篇填词及书面表达等题型，串联“环保行动案例分析-问题解决策略-倡议实践”逻辑脉络，帮助学生构建主题语言知识网络。 其亮点在于以真实环保情境为载体，如“清理河流计划”“冰川保护方法”等语篇，训练学生获取信息、分析问题的思维品质，通过“刷速度”限时检测和错题解析（如易混词辨析、固定搭配拓展）实现分层复习，书面表达“环保倡议书”设计则提升语言运用与社会责任感，助力教师精准把握学情，高效推进单元复习。

英 语 七年级上册 HN 1 2 3 Unit 4 The Earth 4 C 单元限时检测 5 刷速度 6 速度 Ⅰ.完形填空（10分） 【2026辽宁沈阳期末】Like most children growing up in the countryside, Mike loved being outdoors and travelled around every inch of the area. With a deep love of the land, he had a strong wish to . .1. . it. When Mike saw rubbish floating in the rivers, he got . .2. ..He knew he had to do something. While only in the third grade, Mike started a group. Its purpose was to . .3. . the countryside and teach other young people about pollution and its dangers. But Mike faced a challenge. As he was . .4. ., he found it hard to speak out in public. However, with his mum’s help, Mike . .5. . dealt with his fear. 刷速度 返回目录 7 He said, “I took responsibility （责任） and did what needed to be done. When you put your heart into it, . .6. . will stop you.” Mike worked hard to . .7. . his idea to the public. He handed out leaflets and even appeared on the radio and TV.His efforts paid off. He won . .8. . from several thousand people. And his group collected and recycled more than 22,000 pounds （1 pound=0.454 kg） of rubbish. Now as a college student, Mike’s . .9. . remains the same. He often says, “I want to create a . .10. . life for my kids and grandchildren. It’s the beautiful countryside, where I’m from, and I want my kids to see it like I see it.”#5 完形填空·语篇导读 本文讲述了迈克如何通过自己的努力和行动，为保护乡村环 境作出了贡献，并表达了他对未来美好生活的期望。 刷速度 返回目录 1.( ) A.practise B.protect C.prepare D.provide B 【解析】句意为：他深爱着这片土地，强烈希望保护它。根据“With a deep love of the land, he had a strong wish to... it.”可知，他是希望保护这片 土地。故选B项。 2.( ) A.weak B.tired C.relaxed D.angry D 【解析】句意为：当迈克看到河里漂浮着垃圾时，他很生气。根据“When Mike saw rubbish floating in the rivers, he got...”可知，看到河里漂浮着垃圾， 迈克应该是很生气。故选D项。 刷速度 返回目录 9 3.( ) A.clean up B.break into C.set up D.move into A 【解析】句意为：它的目的是清理乡村，并向其他年轻人传授有关污染及其危害 的知识。根据“Its purpose was to... the countryside and teach other young people about pollution and its dangers.”可知，目的是清理乡村的垃圾。故 选A项。 4.( ) A.shy B.sad C.proud D.polite A 【解析】句意为：因为他很害羞，他发现很难在公共场合说出来。根据he found it hard to speak out in public可知，很难在公共场合说出来说明他很害羞。 故选A项。 刷速度 返回目录 10 5.( ) A.clearly B.carefully C.successfully D.traditionally C 【解析】句意为：然而，在他妈妈的帮助下，迈克成功地克服了恐惧。根据 “with his mum’s help, Mike... dealt with his fear”可知，有妈妈的帮助， 迈克应该是成功地克服了恐惧。故选C项。 6.( ) A.anything B.nothing C.something D.everything B 【解析】句意为：当你用心去做的时候，没有什么能阻止你。根据“When you put your heart into it... will stop you.”可知，当你用心去做的时候，应该 没有什么能阻止你。故选B项。 刷速度 返回目录 11 7.( ) A.accept B.change C.follow D.introduce D 【解析】句意为：迈克努力向公众介绍他的想法。根据“Mike worked hard to... his idea to the public.”可知，迈克应该是努力向公众介绍他的想法。故选D项。 易混辨析 receive侧重 “客观上收到、接到”，不管主观是否愿意；accept侧重 “主观上 愿意接受、认可”，是主动选择的结果。 8.( ) A.courage B.victory C.support D.reward C 【解析】句意为：他赢得了数千人的支持。根据“He handed out leaflets and even appeared on the radio and TV.His efforts paid off.”可知，迈克的努 力得到了回报，所以应该是赢得了数千人的支持。故选C项。 刷速度 返回目录 12 9.( ) A.wish B.chance C.luck D.fear A 【解析】根据“Now as a college student, Mike’s... remains the same.”以 及上文提到的迈克保护乡村环境的事情可知，现在作为一名大学生，迈克的愿望 仍然是一样的。故选A项。 知识拓展 fear of （doing） sth 表示“对（做）某事的恐惧”；in fear of 表示 “对……的担心”；for fear of 表示“以免”。 刷速度 返回目录 13 10.( ) A.busier B.harder C.better D.crazier C 【解析】句意为：我想为我的孩子和孙辈创造一个更好的生活。根据“I want to create a... and I want my kids to see it like I see it.”可知，迈克想要为 他的孩子和孙辈创造一个更好的生活，让他们看到美丽的乡村。故选C项。 刷速度 返回目录 14 Ⅱ.阅读理解（12分） A 【2026广东深圳期末】Are you ready to take action to protect the Earth? You may think it impossible, but you can begin by taking some small but important steps. Many children and their classes in the US are taking action. Mrs Perez’s class in the 7th grade decides to do something to protect a river. Here’s how they start. Miguel Salazar lives in Meridian, Texas. Every day he walks home from school and passes a small river. The river is very dirty. But it was not always 刷速度 返回目录 15 like this. Miguel’s grandfather remembers there were flowers and plants along it before and many people fished there. So Miguel’s class decides to clean up the river. They make the following plan.#1.1.1 Class Project: Clean Up ●Write a letter to the mayor （市长） asking her to let us have a Clean-Up Day at the small river. Ask her for garbage cans （罐子） to keep rubbish. ●Make posters asking others not to throw waste into the river. ●Ask parents to come along and help on the Clean-Up Day. ●Decide a day for the big Clean Up! 刷速度 返回目录 If one person can make a difference, think how much more we can do together to protect the Earth.#1.1.2.1 阅读A篇·语篇导读 本文主要讲述了人们应该保护地球，并详细地介绍了佩雷斯老 师班上的孩子为保护河流而采取的行动。 刷速度 返回目录 11. 写作手法 How does the writer start the passage?( ) A A.By asking a question. B.By giving an example. C.By telling a story. D.By showing a result. 【解析】推理判断题。根据“Are you ready to take action to protect the Earth?”可知，作者是以问问题的方式开篇的。故选A项。 刷速度 返回目录 18 12.What can we learn from the plan made by Miguel’s class?( ) D A.Parents will clean the river by themselves. B.The mayor will give them a lot of money. C.Making posters is the most important part in the plan. D.Everyone can do something small to help protect the river. 【解析】细节理解题。根据“You may think it impossible, but you can begin by taking some small but important steps.”和他们制订的计划以及 “If one person can make a difference, think how much more we can do together to protect the Earth.”可知，每个人都可以做一些小事来帮助保护 河流。故选D项。 刷速度 返回目录 19 13.Which may be the best title for the passage?( ) C A.Miguel and His School Life B.How to Write a Letter to the Mayor C.Mrs Perez’s Class Protects the River D.The Dirty River in Meridian, Texas 【解析】主旨大意题。通读全文可知，本文主要讲述了人们应该保护地球，并详 细地介绍了佩雷斯老师班上的孩子为保护河流而采取的行动。故选C项。 刷速度 返回目录 20 B 素材话题：给冰川盖被子 【2026广东广州期末】 Keeping out the heat Check out some surprising methods to keep the mountains cool The world is getting warmer, and the ice in high mountains is melting （融化）.How to slow down the melt? Wearing “clothes”#1.3.1.2 刷速度 返回目录 21 In the 1990s, people in Switzerland put white “blankets” on ski areas. The white colour can reflect the sunshine and keep the ice cool. The blankets are made of wool, so rain can go through the blankets and become ice. It can slow down the melt by about 50 to 70 per cent. Today, the “blankets” in Switzerland cover 10,000 to 50,000 square metres of ice. Painting the rocks Farmers in the Andes Mountains in Peru use a similar idea. Above 5,000 metres, they paint the rocks with white “paint”.The paint is made of water, sand and soap （香皂）.The soap helps it stick to the rocks. The white rocks can be 16 cooler than the dark rocks. 刷速度 返回目录 22 Creating snow Scientists at an organization called GlaciersAlive turn to man-made snow for help in Switzerland. In winter, they use water from a small lake up in the mountains. The water goes down some pipes （管道）.On the pipes, there are shower heads （喷头）.The water flows out from the pipes and becomes snow on the mountain.#1.3.1.4.1 阅读B篇·语篇导读 本文介绍了全球变暖导致高山冰雪融化的问题，并探讨了人们 为了减缓冰雪融化所采取的几种创新方法。 刷速度 返回目录 14.What do we know about the white blankets in Switzerland?( ) B A.They make the country warmer. B.People used them to cover ski areas. C.They can keep the ice cool for about 50 years. D.They are mainly made of ice and sand. 【解析】细节理解题。根据“In the 1990s, people in Switzerland put white ‘blankets’ on ski areas.”可知，人们用白色的毯子覆盖滑雪区。故选B项。 刷速度 返回目录 24 15.What does the word “similar” mean?( ) D A.easy and cheap B.new and different C.quick and simple D.the same in some ways 【解析】词义猜测题。根据“Farmers in the Andes Mountains in Peru use a similar idea.Above 5,000 metres, they paint the rocks with white ‘paint’.”可知，秘鲁农民给岩石涂上白色的“油漆”，这种方法与瑞士人的 方法相似，所以画线词意为“相似的”，与the same in some ways同义。故选D项。 刷速度 返回目录 25 16.What do we know from the passage?( ) D A.People should make better use of the sunshine. B.People are trying to stop the world from getting warmer. C.People from different countries are working in a team. D.People are working hard to keep high mountains cool. 【解析】推理判断题。通读全文可知，本文详细介绍了瑞士、秘鲁等地的人们为 了保持高山冰雪凉爽而采取的各种措施，所以从本文我们可以了解到人们正在努 力使高山保持凉爽。故选D项。 刷速度 返回目录 26 Ⅲ.阅读还原（10分） 【2026广东深圳期中】Earth Day, which falls on 22 April, is a day to call on more people to protect the natural world. This year’s theme “Planet VS Plastic” is especially important because plastic is harming our environment in many ways. Plastic doesn’t break down easily. 17.___ To fight against plastic pollution, we all need to do something. Governments can make rules to limit （限制） the use of plastic and encourage people to recycle. Businesses should find ways to use less plastic or use recycled plastic instead. International cooperation （合作） is of great importance, as many environmental problems need worldwide support. 18.___ E F 刷速度 返回目录 27 Schools can help too. 19.___ By taking part in activities like zero-waste events at school, we will be more likely to make proper choices in our daily lives. We can also share what we know with our friends and families. 20.___ We are advised to use reusable shopping bags and glass bottles instead of plastic ones. It’s a good idea to try to buy something without a lot of plastic packaging （包装）.Even small changes in our daily habits can be helpful. Earth Day is a perfect chance to have our voice heard. 21.___ Let’s work together towards a greener planet.#1.4 D A C 刷速度 返回目录 A.We students can make a difference. B.This simple habit can reduce our plastic waste. C.Remember that every little bit helps to protect the Earth for the future. D.They can teach students the harm of plastic pollution and lead us to take action. E.This means it can stay in environment for a very long time, hurting animals and plants. F.By working together, countries can share knowledge and resources to make a better world. 阅读还原·语篇导读 本文主要介绍了针对塑料污染，我们应该采取的措施。 刷速度 返回目录 29 17. ___ E 【解析】根据上文“Plastic doesn’t break down easily.”可知，塑料不容易 分解，选项E（这意味着它可以在环境中停留很长时间，伤害动植物。）符合语境。 故选E项。 知识拓展 break up 粉碎；拆开；（会议）解散 break into 强行闯入；突然开始 break down 瘫痪 刷速度 返回目录 30 18. ___ F 【解析】根据上文“International cooperation is of great importance, as many environmental problems need worldwide support.”可知，此处与合作应 对塑料污染有关，选项F（通过共同努力，国家可以分享知识和资源，创造一个更 美好的世界。）符合语境。故选F项。 19. ___ D 【解析】根据上文“Schools can help too.”可知，此处与学校采取的措施有关， 选项D（他们可以教学生塑料污染的危害，并引导我们采取行动。）符合语境。故 选D项。 刷速度 返回目录 31 20. ___ A 【解析】根据下文“Even small changes in our daily habits can be helpful.”可知，此处说的是学生们的帮助，选项A（我们学生可以有所作为。） 符合语境。故选A项。 21. ___ C 【解析】根据下文“Let’s work together towards a greener planet.”可知， 此处是作者的号召，选项C（请记住，每一点都有助于保护地球的未来。）符合语 境。故选C项。 刷速度 返回目录 32 Ⅳ.语篇填词（5分） 【2025广东广州调研】Islands are always changing their shapes. Sometimes you can see the changes happening. But most islands change very slowly, and it’s 22.h _____ to see the differences. Islands are not just changing shapes. They’re also getting smaller and sinking. Why? Scientists say it’s because people 23.p ________ the air by burning gas and coal for cars and factories, cutting down trees and other things. This makes the Earth hotter. The hotter temperatures melt the ice at the North and South Poles.24.W ______ from the melting ice goes into the ocean and raises the sea level. ard ollute ater 刷速度 返回目录 33 But there is hope. Scientists are trying to find ways to 25.s _____ the sea level from rising. People are helping by recycling, planting trees, driving 26.l _____, and not wasting things. Together, we can keep the world’s islands from disappearing.#1.2 语篇填词·语篇导读 本文主要分析了岛屿所面临的变化及原因，并介绍了人们采 取的一些阻止岛屿消失的方法。 top ess 刷速度 返回目录 22. ______ hard 【解析】句意为：但大多数岛屿变化非常缓慢，很难看出差异。根据But most islands change very slowly可知，因为变化得很缓慢，所以很难看出其中的区 别，结合首字母可知，此处填hard表示“困难的”。 23. _________ pollute 【解析】根据by burning gas and coal for cars and factories可知，此处表 示“污染空气”，时态为一般现在时，主语为people，故填pollute。 24. _______ Water 【解析】句意为：融化的冰所形成的水流入海洋，提高了海平面。根据语境可知， 此处表示“水”，且其在此处作不可数名词。 刷速度 返回目录 35 25. ______ stop 【解析】根据“Scientists are trying to find ways to… the sea level from rising.”及首字母提示可知，此处应用固定搭配“stop… from doing sth”，意为“阻止……做某事”，动词不定式符号to后接动词原形。 知识拓展 try to do sth 尽力做某事 try doing sth 尝试做某事 26. ______ less 【解析】句意为：人们通过回收、植树、少开车和不浪费东西来提供帮助。根据 语境并结合首字母提示可知，此处表示“少开车”，故填less。 刷速度 返回目录 36 Ⅴ.书面表达（25分） 27.【2026广东广州期中】假设你是校园环保社的社长，请你写一篇以“Join Me to Protect Our Planet!”为题目的倡议书，号召同学们保护树木和水资源。 内容包括： （1）树木和水对人类和地球的重要性； （2）当前面临的环境问题（如乱砍滥伐、水污染……）； （3）提出 4 个具体的保护建议（如节约用纸、循环用水……）； （4）号召。 刷速度 返回目录 37 要求：80词左右。文章标题和开头已给出，不计入总词数；语言简洁有力，具有 号召性。 Join Me to Protect Our Planet! Dear classmates, As the leader of the Eco-Club, I’m calling everyone to protect our trees and water!____ 刷速度 返回目录 38 【参考范文】 Join Me to Protect Our Planet! Dear classmates, As the leader of the Eco-Club, I’m calling everyone to protect our trees and water! Trees clean the air and give us oxygen, while water is the source of life.However, many trees are being cut down, and rivers are polluted by waste. Here’s how we can help: First, save paper to protect forests.Then, turn off taps and reuse water wisely.Besides, join tree-planting activities.Finally, never litter near rivers or lakes. Remember, small actions matter! If we all do our part, we can make the Earth greener and cleaner.Start today! 刷速度 返回目录 39 $