Unit 5 D Looking into nature单元限时检测-【初中必刷题】2025-2026学年八年级下册英语同步课件(外研版·新教材)

该初中英语课件围绕八年级下册Unit 5“探索自然”主题，系统整合完形填空、阅读理解、语法填空及书面表达等语言技能训练，通过“大单元主题情境+语篇导读”构建“自然探索主题-语言知识-文化意识”知识网络，串联植物益处、物种保护等子话题，体现知识点内在逻辑。 其亮点在于以“主题情境任务”驱动复习，如通过“校园植物探索活动”书面表达提升语言能力，阅读理解中推理判断、词义猜测题型培养思维品质，海牛保护、沙漠治理等语篇渗透环保意识增强文化素养。分层练习设计（基础必刷到拓展提升）适配不同学生需求，助力教师精准复习，有效巩固语言知识与核心素养。

英 语 八年级下册 WY 1 2 3 Unit 5 Looking into nature 4 D 单元限时检测 5 刷速度 6 大单元主题情境 众望中学举办了“探索自然，守护自然”的主题分享会，同学们畅 所欲言，分享自己对大自然的看法。 返回目录 7 速度 情境1 Camm介绍了室内植物并指出它们不仅美观易养、价格亲民，还能改善身心 状态、净化空气，为生活增添乐趣与自然气息。 任务一 完形填空（10分） 【2025安徽宣城二模】Who are the silent heroes in the family? Indoor plants. Not only do they look beautiful, but they can . .1. . health by making us feel good and taking away stress. What’s more, indoor plants are easy to . .2. . and are not very expensive. 刷速度 返回目录 8 Many indoor plants are not used to . .3. . outside, especially in winter. They grow better inside because of the warmer condition. There are many good . .4. . about growing plants indoors. Plants around houses can improve our . .5. ..Studies have supported this and found that indoor plants can improve our creativity, focus and memory. There is also research showing that indoor plants can clean the air around them by removing some . .6. . gases, such as formaldehyde （甲醛）.A researcher said, “Plants catch and hold tiny . .7. . materials. They remove some harmful chemicals from cooking or painting. Peace lilies （和平百合花） and pothos （绿萝） are the best.” 刷速度 返回目录 We can get . .8. . from supermarkets, garden centres or online. Younger plants are often cheaper than fully grown ones. Caring for them is always full of . .9. ..You water them, talk to them, see them grow up… Learning about the habits of each plant can bring a new interest and attention into our lives and help to . .10. . our homes with nature. Go and buy one.#1.3 完形填空·语篇导读 本文主要介绍了室内植物的益处并建议人们种植。 刷速度 返回目录 1.( ) A.teach B.improve C.try D.report B 【解析】根据making us feel good and taking away stress 可知，室内植物应 是能提升健康状况。故选B项。 2.( ) A.take down B.turn off C.look after D.keep on C 【解析】句意为：此外，室内植物很容易照料，而且不是很贵。根据“indoor plants are easy to…” 可知，此处表示室内植物易于照顾。故选C项。 3.( ) A.working B.growing C.failing D.resting B 【解析】根据They grow better inside 可知，此处表示室内植物不习惯在室外 生长。故选B项。 刷速度 返回目录 11 4.( ) A.scores B.points C.chances D.goals B 【解析】根据“improve our creativity, focus and memory”可知，此处表示 在室内种植植物有很多好处，good points 意为“好处”。故选B项。 知识拓展 focus on 意为“专注于……”。 5.( ) A.spirits B.illnesses C.projects D.ideas A 【解析】根据improve our creativity 可知，此处表示改善我们的情绪。故选A项。 刷速度 返回目录 12 6.( ) A.expensive B.helpful C.social D.harmful D 【解析】根据clean the air和such as formaldehyde 可知，此处表示有害气体。 故选D项。 7.( ) A.heavy B.polluted C.fresh D.thick B 【解析】句意为：植物捕捉并吸附微小的污染物质。根据remove some harmful chemicals 可知，此处表示污染物质。故选B项。 8.( ) A.tools B.coins C.plants D.snacks C 【解析】根据“Younger plants are often cheaper than fully grown ones.” 可知，此处表示购买植物。故选C项。 刷速度 返回目录 13 9.( ) A.sadness B.wealth C.joy D.pain C 【解析】根据“You water them, talk to them, see them grow up…”和 “bring a new interest…”可知，照顾植物应是充满快乐。故选C项。 10.( ) A.connect B.break C.compare D.argue A 【解析】根据homes with nature 可知，此处表示帮助我们的家与自然建立联系。 故选A项。 刷速度 返回目录 14 情境2 Desan详细说明了种植牛油果的所需材料和步骤，介绍在家动手培育牛油果 植株的方法。 任务二 阅读理解A（10分） 【2025河南南阳二模】#1 ______________________ Have you ever heard of the avocado? The fruit has hard green skin and a pear-like shape. It has a big and round seed inside. This seed can grow into a beautiful green plant. In fact, it’s not hard to plant it at home. Let’s do it together. 刷速度 返回目录 15 Materials ◇An avocado ◇Toothpicks ◇A spoon ◇A glass ◇A knife ◇Water Steps ※ Ask an adult to help you cut the avocado in half. Hold it with one hand and use the knife to cut around the middle. Twist （扭转） the two halves of the avocado in opposite directions until they come apart. ※ Use the spoon to take out the large seed. Then stick 3 or 4 toothpicks into the seed. Fill the glass with water and hang （悬挂） the seed above it. Put the toothpicks on the glass. 续表 刷速度 返回目录 16 Steps ※ Place the seed like this: Let the sharp end face upwards. The flat end should be about 2 cm below the water’s surface. Place the glass in a sunny place. Add more water as needed. After a few weeks, roots will begin to grow. ※ When the roots are about 7 cm long, take the seed out of the glass and pull out the toothpicks. Plant the seed in soil. Leave the top 2 cm of the seed exposed （无遮蔽的）. 阅读理解A·语篇导读 本文主要介绍了如何在家种植牛油果。 续表 刷速度 返回目录 17 11.To plant an avocado, you need the following things EXCEPT ________.( ) B A.a glass B.the skin C.some water D.a spoon 【解析】细节理解题。根据Materials部分列举的材料可知，果皮并非种植所需材 料。故选B项。 12.How many steps do we need to plant an avocado?( ) B A.Three. B.Four. C.Five. D.Six. 【解析】细节理解题。根据Steps部分列举的步骤可知，文中提到了四个步骤。故 选B项。 刷速度 返回目录 18 13.What does the underlined word “stick” probably mean in Chinese?( ) C A.架起 B.粘贴 C.插入 D.伸出 【解析】词义猜测题。根据“Then stick 3 or 4 toothpicks into the seed.” 可知，此处表示将牙签插入种子，以悬挂在玻璃杯上。故选C项。 高分技巧 对于没有明显的标志或线索的词义猜测题，我们可以利用语境进行合乎逻辑的综 合分析，再通过对比选项推测出画线部分的含义。 刷速度 返回目录 19 14. 图示理解 What is the right order of planting an avocado?( ) C ① ② ③ ④ A.①③④② B.②③④① C.②④③① D.①④③② 【解析】细节理解题。根据Steps部分可知，种植牛油果的顺序为：切牛油果、插 入牙签以悬挂种子、将根部浸水、移入土壤。故选C项。 刷速度 返回目录 20 15. 文章出处 Where is the article probably from?( ) D A.A noticeboard. B.A travel guide. C.A storybook. D.A gardening magazine. 【解析】推理判断题。全文为种植牛油果的指南，因此这篇文章可能来自一份园 艺杂志。故选D项。 刷速度 返回目录 21 情境3 Jane讲述了海牛因海草消失而面临饥饿问题，同时提及人类活动和环境变 化对其生存造成的威胁。 任务三 阅读理解B（8分） 【2025陕西榆林调研】More than 1,000 Florida manatees （海牛） died in 2021, many from hunger （饥饿）.So scientists came up with a plan to give food to the manatees. They decided to feed them green vegetables like lettuce and cabbage. An expert said, “We’re making a difference.” By the end of 2021, they had served up more than 25,000 kg of lettuce to hungry manatees. 刷速度 返回目录 22 Florida manatees are huge sea animals and they only eat seagrass and other plants that live in the sea. That’s one reason why they’re sometimes called “sea cows”.Florida manatees have been assessed for the IUCN Red List of Threatened Species since 2023.Most dangers to Florida manatees come from humans. One of the biggest problems is boats. Thousands of Florida manatees were hit or killed by boats. At one point, there were only about 10,000 Florida manatees left. What’s worse, as seagrass began to disappear, the number of Florida manatees keeps going down again. Warming seas with polluted water have created the huge growth of algae （海藻） on the ocean’s surface. 刷速度 返回目录 The algae blocks （阻挡） the sunlight, so the seagrass dies. In some rivers, where the manatees often go in the winter, about 90% of the seagrass beds have died off. Florida will work to help restore （恢复） seagrass beds. But that will take time. Scientists still worry that more Florida manatees could die in the coming years.#3 阅读理解B·语篇导读 本文主要介绍了佛罗里达海牛面临的饥饿问题及政府采取的 相关措施。 刷速度 返回目录 16.Florida manatees are sometimes called “sea cows” because ________.( ) D A.they are as big as cows B.they can swim like cows C.they have tails like cows D.they feed on plants like cows 【解析】细节理解题。根据“Florida manatees are huge sea animals and they only eat seagrass and other plants that live in the sea.That’s one reason why they’re sometimes called ‘sea cows’.” 可知，海牛因像 奶牛一样以植物为食，所以被称为“海牛”。故选D项。 刷速度 返回目录 25 17. 图示理解 How has the number of Florida manatees possibly changed over years?( ) B A. B. C. D. 【解析】细节理解题。根据第一段第一句和第三段的“What’s worse, as seagrass began to disappear,. .the number of Florida manatees keeps going down again.”可知，佛罗里达海牛数量在2021年急剧减少，此后一直没有有效增 长。故选B项。 易混辨析 the number of 意为“……的数量”；a number of 意为“许多”。 刷速度 返回目录 26 18. 顺序排列 Which shows the correct order of the causes of Florida manatees’ death in 2021?( ) A A.sea pollution→the growth of algae→death of seagrass→death of Florida manatees B.the growth of algae→sea pollution→death of seagrass→death of Florida manatees C.sea pollution→death of seagrass→the growth of algae→death of Florida manatees D.the growth of algae→death of seagrass→sea pollution→death of Florida manatees 刷速度 返回目录 27 【解析】细节理解题。根据第三段的“Warming seas with polluted water have created the huge growth of algae on the ocean’s surface.The algae blocks the sunlight, so the seagrass dies… Scientists still worry that more Florida manatees could die in the coming years.”可知，正确顺序是 海水污染→海藻生长→海草死亡→佛罗里达海牛死亡。故选A项。 刷速度 返回目录 28 19.Which is the best title of this passage?( ) D A.The Growth of Algae in Oceans B.The Death of Seagrass in Florida C.Manatees: The “Sea Cows” D.Saving Florida Manatees from Hunger 【解析】主旨大意题。文章主要介绍了佛罗里达海牛因饥饿等问题面临的生存危 机以及政府采取的相关措施，因此D选项（拯救佛罗里达海牛免于饥饿）为最佳标 题。故选D项。 刷速度 返回目录 29 情境4 Ben介绍了摄影师罗先生的团队在西藏恶劣的环境下克服困难，拍摄野生动 植物并出版成书，为科研与物种保护助力。 任务四 阅读理解C（10分） 素材话题：野外摄影师#1 【2025山东潍坊调研】 A Wild Life Photographer When it comes to Xizang, many people first think of its blue sky, white clouds, and snow-covered mountains. But for Mr Luo, there is a more colourful and amazing world in Xizang.20.___ B 刷速度 返回目录 30 Mr Luo is a photographer. He is in his late 50s and grew up in Xizang.21.___ So he brings together a team of experts, photographers and volunteers to travel around Xizang to take photos of its amazing plants and animals and show them to others. 22.___ Mr Luo thinks that if we cannot stop those plants and animals from dying out over time, taking photos of them will be helpful for future research. And future generations （代） will also be able to see that those beautiful plants and animals once lived in Xizang. When travelling around and taking photos, Mr Luo and his team face many difficulties and dangers from terrible natural conditions to dangerous animals.23.___ So far, they have taken hundreds of thousands of photos of Xizang’s natural world and published 11 books.24.___#1.1.4 E G A F 刷速度 返回目录 A.But they never give up. B.This world is made up of wild plants and animals. C.Xizang is so wonderful that it is worth visiting. D.So many people like travelling around Xizang. E.He loves the wildlife there and wants to share it with others. F.Through their photos and books, more and more people are getting to know the wildlife in Xizang. G.At the same time, the terrible natural conditions in Xizang make it hard for many plants and animals to live. 阅读理解C·语篇导读 本文主要讲述了一位野外摄影师及其团队在西藏拍摄野生动 植物的经历。 刷速度 返回目录 32 20. ___ B 【解析】根据“But for Mr Luo, there is a more colourful and amazing world in Xizang.”可知，此处应进一步说明这个世界的情况，选项B（这个世界 是由野生植物和动物组成的。）符合语境。故选B项。 21. ___ E 【解析】根据“So he brings together a team… to take photos of its amazing plants and animals and show them to others.”可知，此处应解释罗 先生组织团队拍摄野生动植物的原因，选项E（他热爱那里的野生动植物并想和其 他人分享。）符合语境。故选E项。 刷速度 返回目录 33 22. ___ G 【解析】根据“Mr Luo thinks that if we cannot stop those plants and animals from dying out over time…”可知，此处应说明那里的野生动植物难 以生存的原因，选项G（同时，西藏恶劣的自然条件使得许多动植物难以生存。） 符合语境。故选G项。 23. ___ A 【解析】根据Mr Luo and his team face many difficulties and dangers和 “So far, they have taken hundreds of thousands photos”可知，他们从来 没有放弃，选项A（但他们从未放弃。）符合语境。故选A项。 刷速度 返回目录 34 24. ___ F 【解析】根据“So far, they have taken hundreds of thousands of photos of Xizang’s natural world and published 11 books.”可知，此处应该说明 这些照片和书籍的影响，选项F（通过他们的照片和书籍，越来越多的人正在了解 西藏的野生动植物。）符合语境。故选F项。 刷速度 返回目录 35 情境5 Coco分享了一名记者通过观察黑板树的生长带来的感悟。 任务五 阅读下面短文，在空白处按要求填入适当的单词或括号内单词 的正确形式。每空1个单词（10分） 【2025辽宁沈阳期中】Li Shuhan, a reporter, enjoys watching the passage （流逝） of time 25. ____ recording the growth of trees. Lively trees can show the 26. _______ （true） of life. by truth In nature, you don’t have to go far to find new and interesting things. You can discover cool things right in your own neighbourhood. Li Shuhan likes to 刷速度 返回目录 36 watch a special tree near her home. It’s 27. ________ （call） the blackboard tree. “This tree has pretty white flowers that smell nice,” says Li. She draws pictures of the tree and shares them on social media. Her pictures have brought her28. ________ （near） 54,000 followers. Li really enjoys looking at this tree. She’s been looking at how its flowers are shaped.“The flowers are small,29. ________ I use a magnifying glass （放大镜） to see them better, ” Li says. called nearly so/and 刷速度 返回目录 Its evergreen 30. ________ （leaf） make a nice home for birds and bugs. Li thinks this tree shows how wonderful and useful nature is. Why does Li watch trees? Li 31. __________ （mention） what a French botanist said in 32. ___ documentary: Plants show the passing of time. “It helps us get closer to nature and feel happy. Trees are alive 33. ____________ （they）, just like us, and they make the world a better place. Life can be busy and noisy, but watching a tree can help us feel calm, quiet and 34. __________ （thank） for each day,” says Li.#3.1 语篇导读 本文讲述了一名记者通过观察树木发现生命真谛的美好体验。 leaves mentions a themselves thankful 刷速度 返回目录 25. ____ by 【解析】根据recording the growth of trees可知，此处指通过记录树木的生长 来观察时间的流逝，by表示“通过”，符合语境，故填by。 26. _______ truth 【解析】句意为：生机勃勃的树木能够展现生命的真谛。根据“the… of life” 可知，此处应用名词，true的名词形式truth符合语境，故填truth。 27. ________ called 【解析】此处表示“被叫作”，应用被动语态，结合It’s，故填called。 刷速度 返回目录 39 28. ________ nearly 【解析】此处需用副词作状语，nearly意为“几乎”，符合语境，故填nearly。 29. ________ so/and 【解析】句意为：花朵很小，（所以）我用放大镜来更好地观察它们…… 根据语 境可知，此处表示结果或顺承，so和and均符合题意，故填so/and。 30. ________ leaves 【解析】根据空后的make可知主语是复数形式，leaf的复数形式为leaves，故填 leaves。 刷速度 返回目录 40 31. __________ mentions 【解析】通读全文可知，此处时态应为一般现在时；主语是Li，故填mentions。 32. ___ a 【解析】根据语境可知，此处泛指一部纪录片，且documentary的发音以辅音音素 开头，应用不定冠词a，故填a。 刷速度 返回目录 41 33. ____________ themselves 【解析】根据“Trees are alive…”可知，这里强调树木自身充满生机，应用反 身代词，故填themselves。 链接狂K alive 的详细讲解见狂K重点P23。 34. __________ thankful 【解析】根据“feel calm, quiet and…”可知，此处应填形容词，feel thankful for 表示“对……心怀感激”，符合语境，故填thankful。 刷速度 返回目录 42 情境6 Dora介绍了中国在塔克拉玛干沙漠边缘开展的防沙治沙项目。 任务六 从方框中选择合适的单词并用其适当形式填空（10分） 【2025陕西咸阳一模·节选】#1 plant be place help successful stop large protect amaze they Do you know Chinese people made a “green scarf” on the desert? On 28th November, 2024, the edge of the Taklimakan Desert was 35. ______________ surrounded （围绕）.It is a（n） 36. _________ event in China’s history of desert control. successfully amazing 刷速度 返回目录 43 The Taklamakan Desert is famous as the “Sea of Death”.It is the 37. _________ desert in China with extremely harsh conditions. However, near this desert, people work hard to 38. ______ it from getting bigger. They build a 3046-kilometre-long sand-blocking green belt, showing China’s great experience in environmental39. ____________. The project 40. _____ filled with difficulties. People had to not only plant trees in the area, but also fight against strong winds and poor soil. Instead of giving up, people here came up with many ideas on 41. _______ own. And they finally succeeded in 42. __________ different kinds of plants along the desert edges. largest stop protection was their planting 刷速度 返回目录 The project has many advantages and is 43. _________.First, trees mean cleaner air. And animals like wild camels now have more food to eat and more 44. ________ to live in. Also, it offers new jobs to local people. It gives hope and a better future to the whole area.#1.5 语篇导读 本文介绍了塔克拉玛干沙漠的“锁边”工程。 helpful places 刷速度 返回目录 35. ______________ successfully 【解析】句意为：在2024年11月28日，塔克拉玛干沙漠的边缘被成功地包围了。 此处需用副词修饰动词，successful的副词形式successfully（成功地）符合语 境，故填successfully。 36. _________ amazing 【解析】句意为：这在中国的沙漠管理历史中是一件令人惊奇的事件。此处需用 形容词修饰名词event，amaze的形容词形式amazing意为“令人惊奇的”，修饰物， 符合语境。故填amazing。 知识拓展 amazed 意为“十分惊奇的”。 刷速度 返回目录 46 37. _________ largest 【解析】句意为：它是中国最大的沙漠，条件极其恶劣。根据语境和所给词可知， 此处应用large修饰名词desert，空前有the，此处应用其最高级形式，故填 largest。 38. ______ stop 【解析】句意为：然而，在这片沙漠附近，人们努力阻止它变得更大。“stop… from doing sth”意为“阻止……做某事”，为固定搭配，符合语境；动词不定 式符号to后接动词原形，故填stop。 刷速度 返回目录 47 39. ____________ protection 【解析】句意为：……展示了中国在环境保护方面的丰富经验。根据 environmental可知，这里需用名词，protect的名词形式protection表示“保 护”，在此处作不可数名词，符合语境。故填protection。 40. _____ was 【解析】句意为：这个项目充满了困难。结合所给词可知，此处应用固定短语be filled with，意为“充满……”；句子描述过去的事情，时态应用一般过去时， 且主语是The project,故填 was。 41. _______ their 【解析】句意为：……这里的人们自己想出了许多办法。此处应用固定搭配on one’s own，意为“独自”,主语是people，故填their。 刷速度 返回目录 48 42. __________ planting 【解析】句意为：他们最终成功地沿着沙漠边缘种植了不同种类的植物。根据 plants 并结合所给词可知，此处表示“种植”，应选plant;固定短语succeed in doing sth 意为“成功做某事”，故填planting。 43. _________ helpful 【解析】句意为：这个项目有很多好处，而且很有帮助。根据The project has many advantages和所给词可知，此处应选help；此处应用形容词作表语，help的 形容词形式helpful意为“有帮助的”，符合语境。故填helpful。 44. ________ places 【解析】根据to live in和所给词可知，此处表示有更多的地方居住，应选place， 作可数名词；more后接可数名词复数形式，故填places。 刷速度 返回目录 49 情境7 最后，同学们围绕校园植物探索活动，分享自己的感悟与收获。 任务七 书面表达（15分） 45.【2025辽宁大连模拟】假如你是李华， 你校于4月22日开展了一场探索校园植物 的活动。你的笔友Mike对此很感兴趣， 并发邮件向你询问具体的活动细节。请 你结合以下提示写一封回信，谈谈活动 过程及你的收获。 注意：（1）词数不少于80（开头和结尾已给出，不计入总词数）； （2）可适当增加细节，以使行文连贯； （3）邮件中不能出现真实姓名及学校名称。 刷速度 返回目录 50 Dear Mike, I’m glad that you are interested in the “Exploring Plants on Campus” activity at our school.____ Best wishes, Li Hua 刷速度 返回目录 51 【参考范文】 Dear Mike, I’m glad that you are interested in the“Exploring Plants on Campus” activity at our school.I can’t wait to share something about it with you. Firstly, we took an exciting tour around the schoolyard to learn about plants at school.Then, a well-known teacher gave us an interesting 刷速度 返回目录 52 speech about different kinds of plants in the world.He used simple stories to make the speech easy to understand.Finally, we attended the plant exhibition in our school hall, which was really cool. This activity was meaningful.It made me realise how wonderful nature is and how important it is to protect nature.I hope you can join in such a fun activity in the future. Best wishes, Li Hua 【解析】知识拓展 can’t wait to do sth 意为“迫不及待做某事”。 刷速度 返回目录 $