Unit 4 Amazing Plants and Animals 单元测试 2025-2026学年人教版（2024）八年级英语上册

2025年八年级英语上册（新版）Unit 4 Amazing Plants and Animals测试题 满分100分，时间90分钟 一、单项选择（每小题1分，共10分） 1. Pandas ______ mainly on bamboo, and they eat about 12 kilograms of it every day. A. live B. feed C. put D. get 2. Some desert plants can ______ without water for months because they store water in their stems. A. survive B. grow C. sleep D. move 3. The little bird ______ its wings and flew away when it saw people coming. A. opened B. waved C. folded D. spread 4. This kind of flower only ______ at night, so it’s called “night-blooming jasmine”. A. blooms B. grows C. dies D. changes 5. Dolphins are very smart animals; they can ______ many tricks if people train them. A. make B. play C. learn D. do 6. Trees are important for us—they ______ oxygen and help clean the air. A. produce B. find C. save D. take 7. The polar bear has thick fur and fat, which helps it ______ the cold in the Arctic. A. fight B. stand C. beat D. bear 8. Some plants ______ their leaves when touched, like the sensitive plant（含羞草）. A. close B. drop C. fold D. turn 9. Bees ______ from flower to flower to collect nectar, and in this way they help plants make seeds. A. walk B. jump C. fly D. climb 10. We should protect wild animals because many of them are ______ danger of disappearing. A. in B. on C. at D. with 二、完形填空（每小题1分，共10分） There are many amazing plants and animals on Earth. Let’s talk about one special plant—the Venus flytrap（捕蝇草）—and one special animal—the chameleon（变色龙）. The Venus flytrap is a carnivorous（食肉的）plant. It grows in wet places in the US. Its leaves look like small traps. When an insect lands on the leaves, the leaves 11 ______ quickly and catch the insect. Then the plant slowly digests（消化）it for food. This helps the plant get enough nutrients（营养）because the soil in its living place is not 12 ______. The chameleon is a clever animal. It lives in warm places like forests and deserts. One of its most amazing abilities is to 13 ______ the color of its skin. It does this to hide from enemies and 14 ______ food. For example, if it sits on a green leaf, its skin turns green; if it stays on a brown branch, it turns brown. Also, the chameleon has long, sticky tongues. It can 15 ______ its tongue out quickly to catch insects for food—its tongue is even longer than its body! Both the Venus flytrap and the chameleon show how amazing nature is. We should 16 ______ them and their living places. If we destroy their habitats（栖息地）, they may 17 ______ forever. Last month, I saw a Venus flytrap in a science museum. It was so interesting to watch it catch a fly. And last year, I saw a chameleon in a zoo. It changed color three times in five minutes! I 18 ______ took some photos of it. These experiences made me love nature more. I hope more people will 19 ______ how special plants and animals are, and work together to 20 ______ our planet. 11. A. open B. close C. turn D. shake 12. A. rich B. dry C. hard D. soft 13. A. change B. keep C. show D. take 14. A. look for B. look after C. look at D. look up 15. A. put B. push C. shoot D. send 16. A. find B. protect C. watch D. study 17. A. leave B. move C. die D. disappear 18. A. even B. still C. ever D. also 19. A. forget B. realize C. miss D. wonder 20. A. save B. make C. build D. help 三、阅读理解（每小题2分，共20分） （A） The giant panda is one of the most loved animals in the world. It lives only in the mountain forests of central China. Pandas have black-and-white fur, which makes them easy to recognize. Giant pandas love eating bamboo. They spend about 14 hours a day eating bamboo—they eat stems, leaves, and shoots. Because bamboo is not very nutritious, pandas have to eat a lot of it to stay healthy. Sometimes they also eat small rodents or birds, but bamboo is their main food. Female pandas usually give birth to one or two babies at a time. Baby pandas are very small—they are only about 150 grams when they are born. They are pink and have no fur. The mother panda takes good care of her babies. She feeds them with her milk and keeps them warm. Baby pandas start to walk when they are about three months old and can eat bamboo when they are six months old. Now, giant pandas are in danger. Their living places are getting smaller because people cut down forests to build houses and farms. Also, some bamboo forests die because of climate change, so pandas have less food. To save pandas, China has built many nature reserves where pandas can live safely. Thanks to these efforts, the number of pandas is slowly increasing. 21. Where do giant pandas live? A. In the deserts of western China. B. In the mountain forests of central China. C. In the grasslands of northern China. D. In the rainforests of southern China. 22. How long do pandas spend eating bamboo every day? A. About 10 hours. B. About 12 hours. C. About 14 hours. D. About 16 hours. 23. What do baby pandas look like when they are born? A. They are black-and-white and furry. B. They are pink and have no fur. C. They are brown and small. D. They are white and have short fur. 24. Why are giant pandas in danger? A. Because they have too many enemies. B. Because they can’t find enough water. C. Because their living places are smaller and food is less. D. Because they get sick easily. 25. What has China done to save pandas? A. Built nature reserves for them. B. Fed them with artificial bamboo. C. Moved them to other countries. D. Trained them to live in cities. （B） The baobab tree（猴面包树）is a very special tree that grows in Africa. It is also called the “tree of life” because it can help people and animals survive in the desert. Baobab trees are huge. Some of them are over 30 meters tall, and their trunks can be 10 meters wide. The trunk is soft and can store a lot of water—up to 120,000 liters! This is very important because it rarely rains in the desert. When there is no rain, animals like elephants and giraffes eat the tree’s leaves and bark, and people can get water from the trunk. The baobab tree has a long life. Some baobab trees are over 1,000 years old. But they grow very slowly—they only grow about 1 meter every 10 years. The baobab tree also produces fruit. The fruit is large and has a hard shell. Inside the shell, there is a soft, white pulp（果肉）that tastes sweet. People can eat the pulp directly or make it into juice. The seeds of the fruit can be roasted and eaten like nuts. Today, some baobab trees are in danger. People cut them down to get wood, and climate change makes the desert even drier. Local people and scientists are working together to protect these amazing trees. They plant new baobab trees and stop people from cutting down the old ones. 26. Why is the baobab tree called the “tree of life”? A. Because it is very tall and old. B. Because it can help people and animals survive in the desert. C. Because it produces delicious fruit. D. Because it has a huge trunk. 27. How much water can a baobab tree’s trunk store? A. Up to 12,000 liters. B. Up to 120,000 liters. C. Up to 1,200 liters. D. Up to 1,200,000 liters. 28. How fast does a baobab tree grow? A. About 1 meter every year. B. About 10 meters every year. C. About 1 meter every 10 years. D. About 10 meters every 10 years. 29. What can people do with the baobab’s fruit? A. Eat the pulp and roast the seeds. B. Use the shell to make bowls. C. Drink the juice from the trunk. D. Feed the pulp to elephants. 30. What are people doing to protect baobab trees? A. Moving them to wet places. B. Planting new trees and stopping cutting. C. Giving them more water every day. D. Making them into a tourist attraction. 四、词汇运用（每小题1分，共10分） A. 根据句意和首字母提示写出所缺单词 31. The e______ has a long trunk, which it uses to drink water and pick leaves. 32. This kind of plant has bright red flowers that b______ in spring. 33. Polar bears live in the Arctic, and their white fur helps them h______ from their prey（猎物）. 34. Bees collect n______ from flowers to make honey. 35. The s______ plant closes its leaves when you touch it—it’s really interesting! 36. Many wild animals are in danger because their h______ are destroyed by humans. 37. Trees p______ oxygen, which is necessary for all living things. 38. The chameleon can c______ the color of its skin to match its surroundings（环境）. 39. Dolphins are very i______ animals; they can understand and follow human instructions. 40. The giant panda’s main food is b______—it eats almost nothing else. B. 用括号内所给单词的适当形式填空 41. Some animals ______ (sleep) through the winter to save energy, like bears. 42. The baobab tree is one of the ______ (old) trees in the world. 43. We should stop ______ (cut) down forests to protect wild animals. 44. The Venus flytrap ______ (catch) insects for food, which makes it a special plant. 45. Baby pandas ______ (take) care of by their mothers until they are about 18 months old. 五、根据汉语意思完成句子，每空一词（每小题2分，共20分） 46. 蜜蜂从花中采集花蜜，同时帮助植物传播花粉。 Bees collect nectar from flowers and help plants ______ ______ at the same time. 47. 这种植物能在干旱的环境中生存，因为它的根很长。 This kind of plant can ______ ______ dry environments because it has long roots. 48. 为了保护濒危动物，我们应该建立更多的自然保护区。 To protect ______ ______, we should build more nature reserves. 49. 变色龙能改变皮肤颜色，这样它就能隐藏在周围环境中。 The chameleon can change the color of its skin so that it can ______ ______ its surroundings. 50. 猴面包树的树干能储存大量的水，这帮助它在沙漠中存活。 The trunk of the baobab tree can store a lot of water, which helps it ______ ______ the desert. 51. 大熊猫每天花大约14个小时吃竹子。 Giant pandas ______ about 14 hours ______ bamboo every day. 52. 捕蝇草的叶子像小陷阱，能快速闭合抓住昆虫。 The leaves of the Venus flytrap are like small traps and can ______ ______ quickly to catch insects. 53. 许多植物在春天发芽，在秋天结果。 Many plants ______ ______ in spring and bear fruit in autumn. 54. 我们不应该购买由野生动物皮毛制成的衣服。 We shouldn’t buy clothes ______ ______ wild animal fur. 55. 大自然中有许多神奇的动植物，我们需要学会欣赏和保护它们。 There are many amazing plants and animals in nature, and we need to learn to ______ and ______ them. 六、书面表达（20分） 假如你是李华，你最近在生物课上学到了一种神奇的动植物，想把它介绍给你的美国笔友Tom。请你根据以下要点提示，给他写一封电子邮件。 要点： 1. 介绍这种动植物的名称和基本特征（外貌、生活环境等）； 2. 描述它的“神奇之处”（如特殊能力、生存方式等）； 3. 说明保护它的重要性。 要求： 4. 包含所有要点内容，可适当发挥； 5. 语言表达准确，语意通顺、连贯； 6. 词数：70词左右。（邮件的开头和结尾已给出，不计入总词数） Dear Tom, How's it going? I recently learned about an amazing plant in my biology class, and I want to share it with you.________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ I think we should all try to protect it. What amazing plants or animals have you learned about? Best wishes! Yours, Li Hua 答案 一、单项选择 1 - 5 BADAC 6 - 10 ADCAA 二、完形填空 11 - 15 BAAAC 16 - 20 BDABA 三、阅读理解 21 - 25 BCBCC 26 - 30 BBCAB 四、词汇运用 A. 31. elephant 32. bloom 33. hide 34. nectar 35. sensitive 36. habitats 37. produce 38. change 39. intelligent 40. bamboo B. 41. sleep 42. oldest 43. cutting 44. catches 45. are taken 五、根据汉语意思完成句子 42. spread pollen 47. survive in 48. endangered animals 49. hide in 50. survive in 51. spend; eating 52. close up 53. come out 54. made of 55. appreciate; protect 六、书面表达（参考范文） Dear Tom, How's it going? I recently learned about an amazing plant in my biology class, and I want to share it with you. It’s called the Venus flytrap. It grows in wet places in the US, with leaves like small traps. What’s amazing is that when an insect lands on its leaves, the traps close quickly to catch it for food. This helps it get nutrients from poor soil. It’s important to protect it because its habitats are getting smaller. I think we should all try to protect it. What amazing plants or animals have you learned about? Best wishes! Yours, Li Hua 学科网（北京）股份有限公司 $