Unit 5 Looking into nature-【典创·单元学情诊断卷】2025-2026学年八年级下册英语（外研版·新教材）

Unit 5 Looking into nature 题号 Ⅲ 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 阅读下面的材料，从每题所给的A、B、C、D四个选项中选出最佳选项。 A Can you imagine a sea of sand three times bigger than India?This is the Sahara Desert,the largest desert in the world.It covers 11 countries in North Africa and is over 9 million square kilometres. That's more than 25%of Africa. In the Sahara,temperatures are very different during the day and at night.It is much hotter during the day than at night.During the day,the hottest time is between 2 p.m.and 4 p.m.,when temperatures rise to 33C.But it is very cold at night-the coldest time is at 4 a.m.,when temperatures fall to-l℃.The Sahara is very dry.The average precipitation(降水量)in a year is only 70 millimeters. Because of the extreme (temperatures in the desert,it is a very difficult place to survive.Marco Rivera,an expert,has some tips: OTake warm clothes and a blanket.You will need them to keep you warm at night.During the day,cover your body,head and face to protect you from the sun and keep water in your body. A car is easier to see than a person walking in the desert.Use car mirrors to signal and tyres to make a fire for help and warmth. ODrink water hourly,conserve it,drink only when needed,and keep your mouth closed to save water. Eat only a little,very slowly to ease hunger.If you eat,you will get thirsty and use up your water faster.You can live for three weeks with no food,but you can only live for three days without water. ·41. ODuring the day,make a hole under your car and lie there to avoid the sun and stay cool.At night,find a warm place to sleep,but look carefully for animals before you lie down. （）l.How does the writer introduce the topic? A.By telling a story. B.By using a saying. C.By asking a question. D.By giving examples. ()2.Which chart best shows the changes of temperature in the Sahara according to Paragraph 2? 33℃ 40℃ 33℃ 30℃ 30℃ 20℃ A. 20℃ 10℃ B. 10℃ 0℃ -1℃ 0℃ 12am 6am 12pm 16pm 12pm Jan. Feb.Mar.Apr. 20℃ 40℃ 15℃ 41℃ 10℃ 35℃ C.5℃ D 0℃ -4℃ 20℃ -5℃ 12am 6am 12pm 16pm 12pm Fri.Sat.Sun.Mon. )3.What does the underlined word "survive"in Paragraph 3 probably mean? A.Keep away. B.Play games. C.Stay alive. D.Meet danger. （）4.What can we learn from the text? A.Driving a car is very useful in the Sahara Desert. B.Drinking water quickly is good for your health. C.Eating quickly is really important in the desert. D.Finding a warm place to sleep is unnecessary. B ALARM! Typhoon Tyrion is coming！The typhoon has formed（形成)in the northwest Pacific Ocean, moving at a speed of 25 km/h.Now,its location is about 300 km southeast of our city.The typhoon is set to hit the southeast coast (on Saturday night.The national weather service says it will reach the average wind scale（平均风力等级)l2 when it arrives.It will bring heavy rains and strong winds. It may cause serious damage in its path.Remember to follow the advice to stay safe: ·42· 1.Keep an eye on warning(警报) Warning signals 平均风力等级 If a typhoon comes,there are four warning signals that are reported on radio or 6-7 television for the public. Watch weather report to keep informed. 四 8-9 2.Keep away from dangerous areas 10-11 ODo not stay in old and dangerous buildings OMove north and find safer places to stay away from the coast. 四 12 or above OIf you live in a low-lying area,board up your home and leave as soon as possible. 3.▲ ODo not leave your home.Stop the travel plan and put off outdoor activities. OWait indoors and stay close to family-talk or tell stories together. OBring outdoor things (like flowerpots and bicycles)inside. Check if you close windows and turn off gas,electricity and water. 4.Make necessary preparations OKeep enough food and drinking water ready. OPrepare medicines if someone in your family is sick. OMake sure the flashlight and radio are working. Don't forget the power bank in case your phone runs out of power. Check your local news stations for newest information about Typhoon Tyrion.If you have questions or need help,contact your local police stations.Stay calm,follow instructions and protect your life! ()5.People are advised to_ when the typhoon comes. A.move southeast B.go to a low-lying area C.stay in old buildings D.be away from the coast (）6.Which of the following titles is best for_▲_？ A.Check out outdoor things B.Stay safe inside C.Organize indoor activities D.Make a get-out plan ()7.According to the passage,we need to prepare for the coming typhoon. A.①②③ B.②③④ C.①③④ D.①②④ ()8.What is the main purpose of the passage? A.To introduce how a typhoon moves. B.To report the result of a typhoon. C.To provide safety guide for typhoons.D.To explain the cause of typhoons ·43· C The Yellow River,known as China's "Mother River",is over 5,400 kilometers starting from the Qinghai-Tibet Plateau(青藏高原)to the Bohai Sea.It gets its name from the yellow mud(泥土)it carries from the Loess Plateau(黄土高原).This rich mud is perfect for farming. For many years,Chinese farmers grew crops like rice and wheat along its banks.Early Chinese emperors even built their capitals near the river.That's why it's called the "cradle of Chinese civilization(文明的摇篮)”. But the Yellow River is also called“China's Big Problem”.Why？Its floods（洪水)once destroyed villages and crops.That was the biggest challenge for ancient people.To control the river, ancient people built walls along its sides.Later,modern dams like the Xiaolangdi Dam(小浪底大坝) helped stop floods. Today,the river faces new challenges:pollution and water shortages.Millions of people need its water to drink and farm.Taking good care of this river is key to China's future. ()9.Where does the Yellow River start? A.The Bohai Sea. B.The Loess Plateau. C.The Qinghai-Tibet Plateau. D.Farmlands in Henan. ()10.Why is the Yellow River called the "cradle of Chinese civilization"? A.Because it helped build factories. B.Because early Chinese emperors built their capitals near it. C.Because it provides drinking water for millions of people. D.Because people can go swimming in it. ()11.Which is true about the Xiaolangdi Dam? A.People in modern times built it to help stop floods. B.Ancient people built it to help stop floods. C.It once destroyed villages and crops. D.It is called“China's Big Problem”. ()12.What's the best title for the passage? A.The Longest River-the Yangtze River in China B.The Yellow River:China's Mother River and Its Challenges C.How Dams Stopped Floods in Ancient China D.The Meaning of Water in Chinese Farming D DDo you know Dongting Lake?It's a famous lake in Hunan,China.It covers about 2,579 square kilometers. 2Dongting Lake is so beautiful.Many famous people,like Li Bai,Liu Yuxi,wrote poems ( ·44· about Dongting Lake.The best time to visit it is from March to October. 3Dongting Lake keeps the water from the Changjiang River.When it's summer,there is a lot of rain.Water in the Changjiang River flows ()into Dongting Lake.It can protect the land and people.So water in the lake in summer is more than that in winter. 4Dongting Lake provides us with plenty of fish every year.There are 117 kinds of fish living in the lake. 5If you have time,please come and have a visit to Dongting Lake. ()13.How does the writer start the text? A.By giving an example. B.By listing numbers C.By asking a question. D.By showing facts. ()14.When is the best time to visit Dongting Lake? A.In January.B.In April. C.In November.D.In December. ()15.What can we learn from the text? A.Dongting Lake is in Hubei. B.There are many famous poems about Dongting Lake. C.Water in Dongting Lake in winter is more than that in summer. D.There are 117 kinds of plants living in Dongting Lake. (16.What is the structure of this text? ①②③④ ②③④ 5 ⑤ 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。 We often think the Arctic（北极)only has snow and ice.But in fact, it has far more than that!17. The Arctic Ocean makes up two- thirds of the Arctic,while one-third is made up of land in eight countries, including Russia,Canada,and the US. The Arctic lands have many various lives.Some plants and animals can grow in very cold temperatures.18. There are whales,Arctic foxes and many more.The polar bear is the most famous Arctic animal.You might think that the Arctic is too cold for people to live in. 19. That's the same population as the city of Taiyuan in Shanxi,China.About 10 percent are local people.They have been there for thousands of years.They make a living by fishing,hunting and so on. A group of scientists recently came back from a one-year-long study in the Arctic.They have bad news:the Arctic is dying.The amount (of Arctic sea ice is falling by around 3 percent every ·45· year.20. What does this mean for us?Many animals,such as polar bears,hunt for their food on the ice.If they can't do this anymore,they will die of hunger.Local people hunt animals for food.But since,so many animals are dying,they need to change their way of life. A.The Arctic is on top of Earth. B. So there are a few people living there. C.In fact,the Arctic is home to more than 21,000 kinds of lives. D.There will be no more ice during the summer in the near future. E.But surprisingly,there are about 4 million people living there. 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。 Have you ever heard of Mount K2(乔戈里峰)？It's known as Savage Mountain because many people used to die or get hurt while 21 it. K2 is the second highest mountain in the world after Mount Qomolangma.People never climb Mount K2 in 22.Both storms and cold weather make it 23 to climb this mountain during that time. K2 is famous as one of the most 24 mountains to climb.It is known by different 25 such as Chhogori,Ketu and Mount Godwin-Austen.The name Chhogori 26 "the king of mountains". This mountain lies between the border (of Pakistan and China.A part of the mountain lies in Pakistan.The other 27 of the mountain lies in Xinjiang,China.Thomas Montgomerie did the first survey of Mount K2 and measured(测量)its height..He named the28_K2,where“K”stood for Kechu.K2 was the second mountain listed,so the name 29 the number "2".The best time to climb K2 is between April and October.It 30 at least 3 weeks to complete the climbing. )21.A.climbing B.walking C.swimming D.moving ）22.A.spring B.summer C.autumn D.winter ( ）23.A.important B.impossible C.silent D.amazing ( ）24.A.difficult B.easy C.interesting D.sleepy ( ）25.A.names B.places C.mountains D.trees ）)26.A.listens B.shows C.calls D. means ）27.A.nature B.part C.joy D.scene ( ）28.A.mountain B.people C.river D.protection ）29.A.completed B.included C.provided D.depended ）30.A.spends B.joins C.takes D.goes ·46· 第二部分非选择题（共40分） 得分评卷 Ⅲ.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。 My hometown is on the Qinghai-Tibet Plateau ()The geography here is amazing.It is famous for the world's 31. （high) mountain.But this area is also full 32. the most amazing colors in nature. The color white 33. (meet)your eyes all around.The clouds are clean and soft,like our white sheep.The mountains shine 34. bright)under the sun,like white lotus flowers. The lovely blue of the sky always 35. (give)me a calm feeling.It is like a great sea above the plateau,and words can't 36. (show)my love for the rivers and lakes.There are a hundred kinds of blue in the water. Our grasslands,forests and fields are all green.Green is my favorite color because 37. (it)means hope and it is the color of life.38. green is not just the color of nature now. Trains are running through the plateau.They are this beautiful color,too. The plateau is quieter than the big cities.We have fewer 39. (shop)and restaurants. But we have the best presents from nature.In my heart,it's better than any other place.I'm glad 40. (say)that I'm from one of the most beautiful places in the world. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 得分评卷 IV. 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） 阅读下面的材料，根据内容回答问题。 The natural world is colorful with humans,plants and animals showing different colors. Human skin (can be many different colors and it changes with the sun,our feelings or our health for example.This is because of pigments ()When we feel angry,our heart can send more blood to the face and the pigments in the skin become red.This is why our face turns red when we are angry. Plants also have pigments.Color is important for them to live on.The bright colors of flowers catch the attention of insects.Bees carrying pollen (from one flower to another help many plants reproduce（繁殖). ·47 Animals also use color for their own needs.They protect themselves with different colors so as not to be seen by predators ()The snowshoe hare for example,a type of wild rabbit,changes color with seasons for this reason.Some animals also use color as a warning to make predators stay away. Nature,however,is very clever,and predators use colors to attract (the animals they feed on. Some uses of color in nature still remain unknown,but one thing is for sure,color not only makes our planet beautiful but it is also necessary for our planet to live on. 41.Why do some people's faces turn red when they are angry? 42.How do bees help many plants reproduce? 43.What do predators use colors to do? 44. How can we help make our planet more colorful?Write 30 words or more. 得分评卷人 V.书面表达（满分20分） 45.我们每个中国人都以自己的祖国为傲。请以“My Motherland-一China”为题，根据下面的提 示用英语介绍一下我们的祖国。 提示：1.历史；2.位置：亚洲东部；3.河流和高山；4.名胜古迹(places of interest); 5.人民正努力使自己的国家更加富强。 要求：1.要点齐全，语言流畅，书写规范；2.词数80左右，开头已给出，不计入总词数； 3.文中不得使用真实姓名、校名。 My Motherland-China China is my motherland. ·48·Unit 4 Helping out I.1-4 CABC 5-8 CDDB 9-12 BABC 13-16 BBCC 17-20 EDBC II.21-25 ACADB 26-30 BDACD IlI.31.a 32.protection 33.against 34.But 35.Others 36.hottest 37.their 38.has been 39.will be taken 40.of IV.41.When he was 6 years old)./At the age of 6 years old). 42.Because his father told him how Cooper saved his life./Cooper saved his life. 43.The hospital uses the money to help about 500 young patients every year. 44.I have learned a lot from Melvin Sheppard's kind behaviour.As a man,first I should be thankful.When ·69 someone helps me,I will help him whenever he needs help.Second I should give a hand to the people in trouble.I should be kind.(答案不唯一，言之成理即 可。) V.45.One possible version: Dear boys and girls, As you know,Volunteer Day is coming soon.Our school volunteer club will hold a volunteer activity to cheer up the sick kids in the hospital.We plan to go to the children's hospital this Saturday.And we're going there by bike.When we get there,we'll tell stories to them and play games with them.Are you free this Saturday? Are you good with the children?Then we need you to join us. Unit 5 Looking into nature I.1-4 CACA 5-8 DBAC 9-12 CBAB 13-16 CBBC 17-20 ACED 一，言之成理即可。) II.21-25 ADBAA 26-30 DBABC V.45.One possible version: IlI.31.highest 32.of 33.meets 34.brightly 35.gives My Motherland一China 36.show 37.it 38.But 39.shops 40.to say China is my motherland.It's an old country with a IV.41.Because their heart can send more blood to the face very long history of more than 5,000 years.China lies in and the pigments in the skin become red. East Asia.There are many places of interest in my 42.They help many plants reproduce by carrying pollen country,such as the Great Wall,the Palace Museum and from one flower to another./They carry pollen from one so on.They are well-known around the world. flower to another. China has many famous rivers and mountains.The 43.They use colors to attract the animals they feed on. Yangtze River is the longest river in my country.Mount 44.We can help in many ways.First,we can plant Huang is famous in the world.Chinese people are trying more flowers and trees of different colors to make our to make the country richer and stronger. environment more beautiful.Second,we should protect animals and plants,so that the colorful beauty of nature Unit 6 Living with nature can be kept.Finally,we must cut down pollution to keep the sky blue,the water clean,and the land green.They I.1-4 DCBD 5-8 CDAC 9-12 CDAB are all important parts of a colorful planet.(答案不唯 13-16 BBAC 17-20 EDBA ·70·