Unit 4 Amazing Plants and Animals-【典创·单元学情诊断卷】2025-2026学年新教材八年级上册英语（人教版2024）

Unit 4 Amazing Plants and Animals 家到 题号 I I Ⅲ W V 总分 得分 时间：90分钟 满分：90分 第一部分选择题（共50分） 得分评卷 人 I.阅读理解（共20小题，每小题2分；满分40分) 第一节 阅读下面语言材料，从每题所给的A、B、C、D四个选项中选出最佳选项。 教口 A Sunflowers are truly one of the most astonishing plants on our planet.These towering plants can reach a height of up to 3 meters,which is almost as tall as two average-sized people standing on each other's shoulders!The large,vivid bright-yellow flowers of sunflowers are like nature's little suns,and they have a interesting habit called heliotropism. When sunflowers are young,they "follow"the sun from the moment it rises in the east until it sets 常条 in the west,turning their heads throughout the day.This movement is a way for them to get the most sunlight,which is crucial for their growth.But as they grow older and start to produce seeds,they usually face east all the time.Scientists believe this might help them attract more pollinators 昆虫)in the morning. Inside those huge flower heads,sunflowers hide a secret-many tiny flowers.These small flowers are arranged in a spiral(螺旋形的)pattern,just like the patterns you might see on a pinecone（松 )Bees and various other insects are attracted to sunflowers like magnets because they can find sweet 狲赵 honey here.The honey is like a sugary drink for the insects,and in return,the insects help the sunflowers by carrying pollen from one flower to another,which is important for the sunflowers to make seeds. 前 When the sunflower seeds mature,they become a delicious and healthy treat for people.Packed with vitamins and beneficial fats,sunflower seeds are great for snacking.You can eat them raw,roast them,or even add them to salads.Moreover,sunflower oil,which is widely used in cooking,is extracted from these seeds.It's incredible how this plant offers so much to us,from food for both insects and humans to useful oil for our kitchens! .25· ()1.According to the passage,why do young sunflowers turn their heads during the day? A.Because they want to show their beauty to people. B.Because they need to get enough sunlight for growth. C.Because they are looking for insects. D.Because they are following the wind direction. ()2.What can we learn about the small flowers inside sunflower heads? A.They are all the same size. B.They are arranged randomly. C.They help sunflowers make seeds with the help of insects. D.They don't need to be pollinated. ()3.Which of the following is NOT true about sunflower seeds? A.They are rich in vitamins. B.They can be eaten in different ways. C.They are used to make sunflower oil.D.They are harmful to our health. ()4.What can we infer from the fact that sunflowers face east when they are old? A.East has more sunlight than other directions. B.Insects prefer east-facing sunflowers. C.Sunflowers have a special way to adapt to getting more benefits. D.Sunflowers will die if they don't face east. B There are many special trees in the world.And the baobab tree(猴面包树)is one of them.It is also called the monkey bread tree,the bottle tree or others. The baobab tree is a strange looking tree that grows in Africa and Australia.Just like its name "Bottle Tree",it looks like a large bottle.Some grow as tall as a 16-floor building.During the dry season,these trees are standing there without leaves,and look like trunks (sticking up in the air.But when the rainy season comes,leaves appear and then flowers come out.Later the flowers can turn into fruit. The baobab tree is called "the tree of life",because it can live longer than 1,000 years old.In the dry land,the baobab tree can pull in and hold 1,000 gallons of water.Thirsty people can drink the water stored in the tree.The fruit,monkey bread,is good to eat.Baobab leaves are a kind of medicine.People can use the bark (to make paper or cloth.When a baobab gets old,its trunk becomes hollow.An old tree can hold many people.The local people often build their houses inside these trunks.It is such a useful tree.Some people could hardly live without it. ()5.How does the writer begin the text? A.By asking a question. B.By showing a story. C.By singing a song. D.By giving an example. ·26· ()6.Which of the following pictures is the baobab in the dry season? A. B. D ()7.Which word is close to the meaning of the underlined word "hollow"in Paragraph 3? A.Dirty. B.Modern. C.Empty. D.Useful. ()8.What's the best title of the passage? A.Monkeys and the Baobab B.What Does the Baobab Like in a Year C.The Baobab's Fruit D.A Special Tree-the Baobab C Kangaroos,the famous animals of Australia,are truly amazing creatures.They are well-known for their incredibly strong back legs and large tails,which are essential to their unique way of moving.With their powerful back legs,kangaroos can leap great distances.Some of them are capable of jumping as far as 9 meters,which is about the length of three cars parked in a row! Their tails act like balancing bars,helping them maintain stability as they jump around.When a kangaroo jumps,its tail moves up and down or side to side,just like how you might wave your arms to keep your balance when you're walking on a narrow path.This unique way of moving allows them to cover large areas quickly in search of food and water. Female kangaroos have a special feature-a pouch.When a baby kangaroo is born,it is extremely tiny about the size of a jellybean.It's so small that it can't even see or hear well.But it has strong instincts.Using its little arms,the baby kangaroos crawl into its mother's pouch,where it will spend the next few months.Inside the pouch,there are teats that provide milk for the babies,ensuring it grows healthy and strong. As herbivores（食草s动物)，kangaroos mainly feed on grass and leaves.They use their sharp teeth to cut the grass and their strong jaws to chew it.These lovely animals not only add charm to Australia's landscapes but also attract tourists from all over the world who are eager to see them in their natural habitat.You can often find kangaroos in open grasslands and fields,jumping around and sometimes even playing with each other. ()9.What would happen if a kangaroo didn't have a tail? A.It could jump higher. B.It would be easier for it to find food. C.It might lose balance when jumping.D.It would grow faster. ()10.Why does a baby kangaroo live in its mother's pouch after birth? A.Because it likes the dark environment there. B.Because it needs to drink milk and grow safely. C.Because it wants to play with its mother. D.Because it can't stand the cold outside. ·27· ()11.Which of the following is TRUE according to the passage? A.Kangaroos are good at swimming.B.Male kangaroos also have pouches. C.Kangaroos eat meat sometimes. D.Kangaroos are popular among tourists. )12.What can we infer from the passage about kangaroos? A.They are the only animals with pouches in the world. B.Their way of moving is not suitable for finding food. C.They have well-developed survival skills in their habitat. D.They don't need to drink water. D Are you ready to start an exciting journey to learn about one of the most amazing animals on Earth? Join us and uncover the fascinating secrets of the polar bear! Appearance Polar bears are magnificent,large-sized bears.Their thick fur,which appears white,is actually made up of clear hairs.These hairs are like tiny tubes that trap air,and the air acts as a warm blanket, keeping them cozy in the freezing Arctic temperatures that can drop as low as-40C.Beneath their fur, their skin is black.This black skin is like a solar panel,helping them absorb more heat from the sun's rays,even on cold,snowy days.Their big paws are also special.They have rough pads ()and sharp claws.The rough pads help them walk on the slippery ice without falling,and the claws are useful for catching seals. Life in the Arctic These powerful animals are outstanding swimmers.They spend a significant amount of time in the cold waters of the Arctic,searching for food.Seals are their favorite food.Polar bears are masters at catching seals on the ice.They use their excellent sense of smell to find seal breathing holes in the ice. Then,they wait patiently,sometimes for hours.When a seal comes up to breathe,the polar bear uses its quick reflexes to grab the seal.Even though the Arctic is a very cold and harsh place,polar bears have adapted well to live there.They can swim long distances,sometimes up to 100 kilometers,to find food or reach new ice floes. Fun Facts When a baby polar bear is born,it's as small as a rabbit,weighing only about 500 grams.But as it grows up,it can become as heavy as 600 kilograms! Polar bears have an astonishing sense of smell.They can detect a seal from kilometers away. This super-sense of smell helps them survive in the vast Arctic,where food can be hard to find. Don't miss this golden opportunity to learn more about these wonderful animals.Come and join our ·28· "Amazing Polar Bears"show at City Zoo this weekend!You'll get to see real-life polar bears,watch their interesting behaviors,and learn even more fun facts from our zoo experts.Prepare to be amazed by these Arctic giants！ ()13.What is the function of the polar bear's black skin? A.To make it look more beautiful. B.To help it absorb heat from the sun. C.To protect it from cold wind. D.To scare other animals away. ()14.How do polar bears catch seals? A.By chasing seals on land. B.By waiting near seal breathing holes and grabbing them. C.By using their sharp teeth to bite seals in the water. D.By working together with other polar bears. ()15.What can we learn from the fun facts about polar bears? A.Baby polar bears grow very slowly. B.Polar bears'sense of smell is not very good. C.The weight difference between baby and adult polar bears is huge. D.Polar bears are afraid of rabbits. ()16.What is the main purpose of this advertisement? A.To tell people the living habits of polar bears. B.To show the importance of protecting polar bears. C.To encourage people to visit the Arctic. D.To attract people to the "Amazing Polar Bears"show at City Zoo. 第二节阅读短文，从方框内所给的选项中选出可以填入空白处的最佳选项，其中有一个多余的 选项。 Bamboo is truly one of the most famous plants on our planet.It has an astonishing growth rate,and some species can shoot up about 1 meter in just a single day!17 This rapid growth makes bamboo stand out among other plants.In many Asian countries,especially in China,Japan,and Thailand, bamboo has been a necessary part of people's lives for thousands of years. Bamboo has a vast number of uses.18 In daily life,it can be crafted into chopsticks,which are the primary tableware in many Asian households.It is also used to make baskets of various shapes and sizes,helping people store and carry things.What's more,its strength and lightness make it an ideal material for building houses.Some traditional bamboo houses not only look unique but also provide a comfortable living space. Bamboo also plays a crucial role in the animal kingdom.19 Pandas rely almost entirely on ·29· bamboo leaves and stems for their diet.A panda spends most of its day eating bamboo,and without this plant,their survival would be severely threatened. Besides,bamboo is a great friend to the environment.It can grow in a wide variety of places,from mountain slopes to riverbanks.Its extensive root system helps hold the soil firmly,effectively preventing soil erosion.20 A.As a result,it helps prevent floods and landslides B.That's much faster than most other plants. C.It can be made into many things. D.Bamboo is the main food for pandas. E.People usually plant bamboo in spring. 17. 18. 19. 20. 得分评卷 Ⅱ.完形填空（共10小题，每小题1分；满分10分) 阅读短文，理解其大意，从A、B、C、D四个选项中选出可以填入空白处的最佳选项。 Pandas are one of the most famous animals in the world.They are loved by people all over the world for their cute looks and gentle nature. Pandas have black-and-white fur.Their big,round eyes and fat bodies make them look 21. They mainly 22 bamboo,and they spend more than 12 hours a day eating.You can often see them sitting 23 a tree and eating bamboo leaves slowly. In the past,pandas lived in many places in China.But 24 they lost their living places,their number became smaller and smaller.To 25 pandas,the Chinese government has built many safe places for them.Scientists also work hard to study pandas and help them have more 26. Baby pandas are very small when they are born.They look more like pink mice 27 pandas. Mother pandas take good care of their babies.They hold their babies 28 and keep them warm.As the babies grow up,they start to learn how to find food and climb trees from their mothers. Pandas are not only important to nature 29 also a symbol of friendship.China often sends pandas to other countries.These lovely animals help people from different countries understand and 30 each other better.Let's work together to protect these amazing creatures. ）21.A.scay B.ugly C.cute D.strange ( )22.A.eat B.drink C.buy D.sell ）23.A.under B.on C.in D.beside ）24.A.instead of B.because C.according to D.thanks to ·30 ()25.A.kill B.catch C.help D.study ( ）26.A.raise B.play C.draw D.watch ( ）27.A.as B.like C.than D.with ( ）28.A.carefully B.carelessly C.quickly D.slowly ( ）29.A.s0 B.but C.or D.and ）30.A.fight with B.talk about C.learn from D.look at 第二部分 非选择题（共40分) 得分评卷 . 语篇填空（共10小题，每小题1分；满分10分) 阅读短文，在空白处填入一个适当的单词或用括号内所给词的正确形式填空，使短文通顺、连贯。 Penguins are lovely and unique animals that live mainly 31 Antarctic.They may not be able to fly,32 they are excellent swimmers.Their black-and-white feathers not only make them look cool but also help them stay warm in the cold environment. Most penguins spend a lot of time 33 (swim)in the ocean to find food,like fish and shrimp. They use their 34 (strong)flippers to "fly"through the water quickly.When they are on land, penguins walk in a funny way,which 35 (make)people laugh. Penguins are social animals.They often live in large groups 36 (call)colonies.In a colony, they take care of each other and work together to raise their 37(baby).Female penguins lay eggs, and then male penguins keep the eggs warm on their feet for weeks. The number of penguins is getting smaller these years because 38 the change of the climate and human activities.The ice in Antarctic is melting,and it's becoming harder for penguins 39 (find) enough food.We should do something to protect these amazing animals and their 40 (nature) habitat. 31. 32 33. 34. 35. 36. 37 38. 39. 40. 得分评卷 人 V.阅读与表达（共4小题，41~43小题，每小题2分，44小题4分；满分10分） 阅读短文，然后根据内容回答问题。 Trees are important plants in our lives.They do a lot for us and the environment. Trees can clean the air.They take in carbon dioxide and give out oxygen,making the air fresh. They also help keep the soil in place,stopping it from being washed away easily.In summer,trees provide cool shade.People love to sit under the trees to stay away from the hot sun.And in autumn,the ·31· colorful leaves on the trees make our world look beautiful. : Trees are useful in many other ways,too.We get wood from trees to build houses,make furniture, and print books.Some trees even give us delicious fruits,like apples and oranges.However,many trees are cut down every year.This is bad for the environment. We should plant more trees and protect them.Let's work together to make our world greener with these amazing plants. 41.What do trees give out? 42.What can we get from trees to build houses? 密 43.What is the impact(后果）of cutting down many trees every year?? 44.How can students protect trees in daily life?Share one way.Write more than 30 words 得分评卷人 V.书面表达（满分20分） 封 45.在我们的生活中，各种各样的动物和植物与我们相伴。它们有的美丽可爱，有的独特神奇。 请以“My Favorite Animal/Plant'”为题，写一篇英语作文，介绍你最喜欢的一种动物或植物。 要求：1.不少于70词； 2.语言表达准确、流畅，可适当发挥； 3.文中不得出现真实的师生名字和校名地名。 My Favorite Animal/Plant 线 ·32·44.I prefer online shopping because it's very convenient. I can buy things from home without traveling,browse many products quickly,and save time for other activities, as the passage says.(答案不唯一，言之有理即可) V.45. Traditional Letters and E-mails: Same or Different? Traditional letters and e-mails are both ways to communicate with others,but they have many differences. They share one thing in common.Both of them help people send messages,share feelings and keep in touch with others.However,they are different in many ways. Traditional letters take several days or even weeks to reach the receivers,while e-mails arrive within seconds. Writing a letter needs paper and a pen,and you have to go to the post office to send it.E-mails,on the other hand,can be sent through the Internet with a computer or a mobile phone.What's more,traditional letters can give people a warm feeling when they receive them,but e-mails are more convenient and environmentally friendly. In my opinion,both traditional letters and e-mails have their own value.It depends on people's needs and preferences ·83 Unit 4 Amazing Plants and Animals I.1-4 BCDB 5-8 DACD 9-12 CBDC 13-16 BBCD 17-20 BCDA II.21-25 CABBC 26-30 ACABC Ⅲ.31.in 32.but 33.swimming 34.strong 35.makes 36.called 37.babies 38.of 39.to find 40.natural IV.41.Oxygen. 42.Wood. 43.Cutting down many trees is bad for the environment. 44.Students can recycle paper to protect trees.In daily life,we use a lot of paper,and most of it comes from trees.By collecting used paper,sending it for recycling, and reducing paper waste,we can decrease the demand for new wood,thus helping to protect trees..(答案不唯 36.students 一，言之有理即可) 37.questions V.45. My Favorite Animal 38.won My favorite animal is the panda.Pandas are black 39.excited and white,with big,round eyes and lovely faces.They 40.helpful look so cute that many people around the world like them. IV.41.Making short videos. Pandas mainly live in Sichuan,China.They spend 42.Story,the order of the scenes,music,etc. most of their time eating bamboo.Because pandas are 43.On social media sites. very lazy,they often sleep after eating.However,they 44.I'd choose the topic of my school life.I want to are in great danger now.People cut down too many trees, record our exciting science experiments,the lively so pandas are losing their homes. discussions in English class,and the joyful breaks when I hope we can do more to protect them and let them my classmates and I play games together.These moments live happily in the wild. are full of laughter and warmth,and I hope to share them with others.(答案不唯一，言之有理即可) 期中测试卷 V.45. My Dream School My dream school is a wonderful place.First,it has I.1-4 CABD 5-8 BBCD 9-12 BCCC large and clean classrooms with comfortable desks and 13-16 BCCC 17-20 BDAE chairs.There is also a big library where I can read all II.21-25 BACBA 26-30 AACAD kinds of interesting books. Ⅲ.31.a The school has beautiful gardens and playgrounds. 32.in After class,I can play games with my friends or take a 33.preparing walk in the gardens.The teachers in my dream school are 34.searched kind and patient.They teach us not only knowledge but 35.Then also how to be good people 84·