Unit 4 单元综合测试2026-2027学年人教版英语八年级上册

**基本信息** 本试卷为八年级英语Unit 4“Amazing Plants and Animals”单元综合测试，围绕动植物主题整合词汇、语法、阅读及写作模块，通过真实科学情境考查语言能力，适配单元复习需求，助力思维品质与文化意识培养。 **题型特征** |题型|题量/分值|知识覆盖|命题特色| |----|-----------|----------|----------| |单词、短语与句子|15分|核心词汇（如largest, store）、比较级/最高级|结合动植物特性设题，语境化巩固基础| |完形填空|15分|上下文理解、动词短语（snap shut）|以捕蝇草为素材，渗透生态保护意识| |阅读理解|20分|细节提取、推理判断|蜂鸟/电报树等科普文本，培养信息素养| |书面表达|15分|最高级运用、篇章结构|“神奇动物发现”主题，融合描述与价值判断|

八年级英语Unit 4 Amazing Plants and Animals 单元综合测试 （满分100分） 姓名：__________ 班级：__________ 得分：__________ 第一部分 单词、短语与句子（共15分） A）根据首字母或汉语提示填空。（每题1分，共5分） 1. The blue whale is the l________ animal in the world. 2. The titan arum (巨魔芋) is famous for its terrible s________ when it blooms. 3. A hummingbird can fly b________ than many other birds because its wings move fast. 4. The baobab tree can s________ water in its thick trunk for a long time. 5. Some plants and animals are c________ to each other — they need each other to live. B）用所给短语的适当形式填空。（每题1分，共5分） be known as；be connected to；in danger；the tallest；more than 6. The giraffe is ________ animal on land. 7. Many rainforest plants ________ each other and the animals around them. 8. This kind of flower ________ the "corpse flower" because of its smell. 9. Some species are ________ today because of climate change. 10. The elephant can weigh ________ 5,000 kilograms. C）根据汉语提示完成句子，每空一词。（每空0.5分，共5分） 11. 蓝鲸是地球上最大的动物。 The blue whale is ________ ________ animal on Earth. 12. 你觉得这个植物园里最神奇的植物是什么？ ________ do you think is ________ ________ ________ plant in this botanical garden? 13. 昨天我了解到，有些植物能在沙漠中存活多年。 Yesterday I learned that some plants can ________ for many years in the ________. 14. 这种树比其他树能储存更多的水。 This kind of tree can store ________ water ________ other trees. 15. 动物和植物在哪些方面对我们的生活很重要？ In what ways ________ animals and plants ________ to our lives? 第二部分 完形填空（共15分，每小题1.5分） 阅读下面短文，从每题所给的A、B、C、D四个选项中选出最佳选项。 Do you know that some plants can "eat" animals? The Venus flytrap (捕蝇草) is one of the 16________ amazing plants in the world. It grows in wetlands in North and South Carolina, USA. The Venus flytrap has special leaves that look 17________ mouths. When an insect or a small spider touches the tiny hairs inside the leaf, the leaf 18________ shut in less than a second. Then the plant slowly "eats" the insect. It takes about 5 to 12 days 19________ the meal. Why does this plant eat insects? It grows in poor soil 20________ doesn't get enough nutrients (营养). By eating insects, it gets the nitrogen (氮) it 21_______ to grow. This plant is not only amazing but also 22________ . There are fewer Venus flytraps in the wild today because people pick them and their living places are 23_______ . Some scientists say they are 24_______ danger. So if you see one in the wild, remember to look but not 25________! 16. A. many B. more C. most D. much 17. A. at B. like C. for D. after 18. A. opens B. walks C. stays D. snaps 19. A. to finish B. finish C. finishing D. finished 20. A. but B. or C. and D. so 21. A. needs B. protects C. changes D. imagines 22. A. boring B. endangered C. excited D. dangerous 23. A. appearing B. disappearing C. growing D. arriving 24. A. on B. at C. in D. under 25. A. water B. eat C. touch D. pick 第三部分 阅读理解（共20分，每小题2分） A 阅读下面短文，从每题所给的A、B、C、D四个选项中选出最佳选项。 The Amazing Hummingbird The hummingbird is one of the smallest birds in the world. But don't let its size fool you — it is also one of the most amazing! Hummingbirds are the only birds that can fly backwards. They can also fly up, down, and even hover (悬停) in one place. Their wings beat very fast — about 50 to 80 times per second! This makes a humming sound, which gives them their name. Because they fly so fast, hummingbirds need a lot of energy. They eat about half their body weight in nectar (花蜜) every day. To get the nectar, they use their long, thin beaks (喙) to reach deep into flowers. While they drink, pollen (花粉) sticks to their heads and is carried to the next flower. In this way, hummingbirds help plants reproduce (繁殖). Hummingbirds can be found only in the Americas, from Alaska to Chile. There are over 300 different kinds. The smallest is the bee hummingbird, which is only about 5 centimeters long and weighs less than 2 grams. Today, some hummingbirds are losing their homes because forests are being cut down. Scientists worry that some kinds may disappear in the future. Protecting these tiny birds means protecting the flowers and trees they depend on. 26. What makes the hummingbird special among birds? A. It is the largest bird. B. It can fly backwards. C. It cannot fly in the rain. D. It only eats insects. 27. Why do hummingbirds make a humming sound? A. Because they sing while flying. B. Because their wings beat very fast. C. Because they have special voices. D. Because they fly close to the ground. 28. How much nectar does a hummingbird eat each day? A. About one quarter of its body weight. B. About half of its body weight. C. About all of its body weight. D. About twice its body weight. 29. How do hummingbirds help plants? A. They eat harmful insects. B. They carry pollen between flowers. C. They water the flowers. D. They plant seeds. 30. What is one danger that hummingbirds face today? A. They have no food to eat. B. They are losing their natural homes. C. They cannot fly fast enough. D. There are too many of them. B 阅读下面短文，从每题所给的A、B、C、D四个选项中选出最佳选项。 Have you ever seen a plant that "cries"? The telegraph plant (电报树) is one example. Its leaves move so quickly that they look like they are sending a message! The telegraph plant, also called the "dancing plant", is native to Asia. Its leaves are made up of three parts. The two side leaflets (小叶) move up and down in a circle every few minutes, especially when the temperature is warm or when there is strong sunlight. Scientists think this movement helps the plant get more sunlight and avoid overheating. Another amazing plant is the sensitive plant (含羞草). When you touch its leaves, they fold up and droop (下垂) as if they are shy. This movement happens very fast — within seconds! It is a way for the plant to protect itself from animals that might want to eat it. Both the telegraph plant and the sensitive plant show that plants are not as simple as they seem. They can "feel" and respond (回应) to their environment. Next time you pass by a plant, remember: it might be more active than you think! 31. Why is the telegraph plant also called the "dancing plant"? A. Because it dances with music. B. Because its leaves move like dancing. C. Because it grows very fast. D. Because it has beautiful flowers. 32. What happens to the telegraph plant's side leaflets on warm days? A. They stop moving. B. They fall off. C. They move up and down. D. They turn yellow. 33. Why do scientists think the telegraph plant moves its leaves? A. To catch insects.B. To get more sunlight and avoid overheating. C. To scare away animals. D. To spread its seeds. 34. When you touch a sensitive plant, what happens? A. Its leaves fold up. B. Its flowers open. C. It grows taller. D. It changes color. 35. What do both the telegraph plant and the sensitive plant have in common? A. They both eat insects. B. They both live in cold places. C. They both can respond to their environment. D. They both have very large leaves. 第四部分 七选五（共10分，每小题2分） 根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。 Why Are Rainforests Important? Rainforests are home to more than half of the world's plants and animals. 36. ________ They give us clean air, fresh water, and many of the foods and medicines we use every day. One important reason is that rainforests help control the climate. Trees take in carbon dioxide (二氧化碳) and give out oxygen (氧气). 37. ________ Rainforests are also like giant water pumps. 38. ________ The water then falls back to the ground as rain. In fact, the Amazon rainforest creates about 30% of its own rainfall! 39. ________ Many of the fruits we eat, like bananas and pineapples, come from rainforests. About 25% of all medicines are made from plants that grow there. Sadly, rainforests are being cut down very fast. Every year, an area the size of a small country disappears. 40. ________ Protecting rainforests means protecting our own future. A. Without them, we would have less clean air. B. They take up water from the ground and send it into the air. C. You can find rainforests in many countries. D. This is bad news for all living things. E. Rainforests are also important for our food and health. F. They cover only about 6% of the Earth's surface. G. Everyone should plant a tree. 第五部分 语法填空（共15分，每小题1.5分） 阅读下面短文，在空白处填入一个适当的词或括号内单词的正确形式。 Do you know that some animals are 41. ________ (smart) than we think? Take the dolphin for example. Dolphins can communicate with each other using sounds. They even have their own "names" — each dolphin 42. ________ (have) a special whistle (口哨声) that is different from others'. Yesterday, I 43. ________ (watch) a documentary about octopuses (章鱼). I was 44. ________ (surprise) to learn that an octopus has three hearts and blue blood! It is one of 45. ________ (intelligent) animals in the ocean. An octopus can solve puzzles, open jars, and even escape from small spaces. Plants can be amazing, too. The giant bamboo is one of the 46. ________ (fast) growing plants in the world. It can grow up to 1 meter per day! 47. ________, bamboo is not a tree — it is a type of grass. Plants and animals 48. ________ (connect) to each other in many ways. For example, bees help flowers reproduce 49. ________ carrying pollen (花粉). Without bees, many plants would not be able to grow. That's 50. ________ it is important to protect all living things. 第六部分 任务型阅读（共10分，每小题2分） 阅读下面的短文，然后根据短文内容用完整的英语句子回答下列问题。 The Oldest Living Things on Earth Have you ever wondered what the oldest living things on Earth are? It might surprise you to know that they are not animals — they are trees! One of the oldest known living trees is a bristlecone pine (狐尾松) in California, USA. Scientists call it "Methuselah". It is about 4,800 years old! That means it was already growing when the pyramids (金字塔) in Egypt were being built. This tree has survived extreme (极端的) weather, including very cold winters and dry summers. It grows very slowly, which makes its wood very hard and dense (紧密的). Another very old living thing is the Pando aspen (白杨) forest in Utah, USA. Pando is not just one tree — it is a group of about 40,000 trees that all grow from one single root system (根系). Scientists say Pando is about 80,000 years old, making it one of the oldest living things on Earth. The trees all have the same genes (基因) because they come from the same parent plant. These old trees remind us that nature can be incredibly strong and long-lasting. But they also face dangers today. Climate change and forest fires are putting them at risk. Scientists are working hard to protect these ancient living things. 51. What is the name of the oldest known living tree mentioned in the passage? 52. How old is Methuselah? 53. Why is the wood of the bristlecone pine very hard and dense? 54. What is Pando and how old is it? 55. What dangers do these old trees face today? 第七部分 书面表达（共15分） 题目：My Most Amazing Animal Discovery 要求： 1. 描述你最近（比如昨天或上周）观察到或了解到的一种神奇动物； 2. 至少使用三个最高级形式（如：the fastest / the most beautiful / the most interesting）； 3. 说明它为什么令人惊叹，以及它与人类或自然环境的关系； 4. 词数：70—90词；结构清晰，语言正确。 八年级Unit 4 Amazing Plants and Animals 单元综合测试 解析版答案 第一部分 单词、短语与句子（共15分） A）根据首字母或汉语提示填空（每题1分，共5分） 1. largest 解析： 句意“蓝鲸是世界上最大的动物”，空格前有“the”，后接名词“animal”，需用最高级形式，“large”的最高级为“largest”。 2. smell 解析： 句意“巨魔芋开花时以难闻的气味闻名”，“terrible”后接名词，“smell”意为“气味”。 3. better 解析： 句中有“than”，需用比较级，“well”的比较级为“better”，此处修饰动词“fly”。 4. store 解析： 句意“猴面包树能在粗壮的树干中储存水”，“can”后接动词原形，“store”意为“储存”。 5. connected 解析： 句意“有些动植物是相互联系的”，“are connected to”为固定搭配，表示“与……有联系”。 B）用所给短语的适当形式填空（每题1分，共5分） 6. the tallest 解析： 句中有范围“on land”，需用最高级，且“animal”为单数，故填“the tallest”。 7. are connected to 解析： 主语为复数“plants”，时态为一般现在时，用“are connected to”表示“与……相连”。 8. is known as 解析： 主语“flower”为单数，被动语态“is known as”表示“被称为”。 9. in danger 解析： “in danger”为固定短语，表示“处于危险中”。 10. more than 解析： 句意“大象体重超过5000公斤”，“more than”表示“超过”。 C）根据汉语提示完成句子（每空0.5分，共5分） 11. the largest 解析： 最高级前加“the”，“largest”为“large”的最高级。 12. What ; the most amazing 解析： 疑问词“What”作宾语；最高级“the most amazing”修饰“plant”。 13. live ; desert 解析： “live”表示“存活”；“desert”意为“沙漠”。 14. more ; than 解析： 比较级结构“more ... than ...”，表示“比……更多”。 15. are ; important 解析： 主语为复数“animals and plants”，系动词用“are”，“important”作表语。 第二部分 完形填空（共15分，每小题1.5分） 答案速查： 16. C 17. B 18. D 19. A 20. C 21. A 22. B 23. B 24. C 25. C 详细解析： 16. C（most） “one of the + 最高级 + 复数名词”为固定结构，表示“最……之一”，故选“most”。 17. B（like） “look like”表示“看起来像”，此处指叶子像嘴巴。 18. D（snaps） “snap shut”意为“啪地合上”，形容捕蝇草叶子快速闭合的动作。 19. A（to finish） “It takes + 时间 + to do sth.”为固定句型，故用不定式“to finish”。 20. C（and） 前后为并列关系，土壤贫瘠 并且 得不到足够营养，用“and”。 21. A（needs） 它“需要”氮来生长，“needs”符合句意。 22. B（endangered） 后文提到数量减少，说明它“濒危”，故选“endangered”。 23. B（disappearing） 栖息地正在“消失”，对应“disappearing”。 24. C（in） “in danger”为固定搭配。 25.D（pick） 野生捕蝇草数量减少的主要原因是人们采摘它，因此此处呼吁看到野生捕蝇草只看不采摘。 第三部分 阅读理解（共20分，每小题2分） A篇（蜂鸟） 答案： 26. B 27. B 28. B 29. B 30. B 解析： 26. B 第二段首句明确说明“蜂鸟是唯一能向后飞的鸟”。 27. B 第二段提到翅膀每秒拍动50~80次，发出嗡嗡声，因此选B。 28. B 第三段明确说“每天吃大约一半体重的花蜜”。 29. B 第三段最后提到花粉沾到头上带到下一朵花，帮助植物繁殖。 30. B 最后一段指出森林被砍伐导致失去家园，故选B。 B篇（电报树和含羞草） 答案： 31. B 32. C 33. B 34. A 35. C 解析： 31. B 第一段说叶子动得像在发送信息，第二段又称“跳舞植物”，因为叶子运动像跳舞。 32. C 第二段提到温暖天气时两侧小叶上下移动。 33. B 第二段末句明确指出科学家认为是为了获取更多阳光和避免过热。 34. A 第三段说触碰后叶子合拢下垂。 35. C 两种植物都能对环境做出反应，即“respond to their environment”。 第四部分 七选五（共10分，每小题2分） 答案： 36. F 37. A 38. B 39. E 40. D 解析： 36. F 前句说雨林拥有超半数动植物，后句说它们提供清洁空气等，中间补充雨林只覆盖地球表面约6%，符合逻辑。 37. A 前句说树木吸收二氧化碳释放氧气，后句应说明没有它们会怎样，A项“没有它们，我们清洁空气会更少”衔接自然。 38. B 前句说雨林像巨型水泵，后句说水变成雨落回地面，中间需要“从地面吸水并释放到空气中”，B项符合。 39. E 后文提到水果和药物，说明雨林对食物和健康重要，E项概括此意。 40. D 前句说雨林消失很快，后句说保护雨林就是保护未来，中间应说这是坏消息，D项“这对所有生物都是坏消息”衔接。 （干扰项C和G与上下文无关） 第五部分 语法填空（共15分，每小题1.5分） 答案速查： 41. smarter 42. has 43. watched 44. surprised 45. the most intelligent 46. fastest 47. However 48. are connected 49. by 50. why 详细解析： 41. smarter —— 句中有“than”，需用比较级，smart的比较级为smarter。 42. has —— 主语“each dolphin”为单数，谓语动词用第三人称单数形式“has”。 43. watched —— 时间状语“Yesterday”表明用一般过去时。 44. surprised —— 修饰人（I）用过去分词形式的形容词“surprised”，表示“感到惊讶的”。 45. the most intelligent —— “one of the + 最高级 + 复数名词”结构，intelligent的最高级为most intelligent，前面加the。 46. fastest —— 同上，one of the + 最高级，fast的最高级为fastest。 47. However —— 前后句意转折（竹子长得快，但它是草），且空后有逗号，用“However”大写开头。 48. are connected —— 主语“Plants and animals”为复数，被动语态“are connected”表示“被联系起来”。 49. by —— “by + 动名词”表示方式，意为“通过”。 50. why —— “That's why...”意为“那就是为什么……”，引导表语从句。 第六部分 任务型阅读（共10分，每小题2分） 参考答案（完整句子，意思对即可）： 51. Its name is Methuselah. （或：It is called Methuselah.） 52. It is about 4,800 years old. 53. Because it grows very slowly. 54. Pando is a group of about 40,000 trees that grow from one single root system. It is about 80,000 years old. 55. Climate change and forest fires are putting them at risk. （或：They face dangers from climate change and forest fires.） 解析要点： · 51题：原文第二段明确提到“Scientists call it 'Methuselah'”。 · 52题：第二段直接给出“about 4,800 years old”。 · 53题：第二段末尾“It grows very slowly, which makes its wood very hard and dense.” · 54题：第三段第一句和第二句提供信息。 · 55题：最后一段“Climate change and forest fires are putting them at risk.” 第七部分 书面表达（共15分） 参考范文： My Most Amazing Animal Discovery Last week, I watched a documentary about the cheetah, and I think it is one of the most amazing animals in the world. The cheetah is the fastest land animal. It can run at speeds of over 110 kilometers per hour! It is also one of the most beautiful animals, with its spotted coat and sleek body. But what I find the most interesting is that it uses its long tail to keep balance while running fast. Cheetahs are important to nature because they help control the number of other animals. However, they are in danger today because their living places are getting smaller. I think we should do something to protect them. 学科网（北京）股份有限公司 $