Unit 7 The natural world 单元分层练习 2026-2027学年译林版英语八年级上册

**基本信息** 《Unit 7 The natural world单元分层练习》聚焦自然保护主题，通过翻译、对话、阅读等多元题型，覆盖核心词汇、情境交际及综合语言运用，适配初中英语单元复习，强化语言能力与环保意识培养。 **题型特征** |题型|题量/分值|知识覆盖|命题特色| |----|-----------|----------|----------| |翻译|38题|核心词汇（如prevent, trap）、短语（如take in, lead to）|夯实基础，对接单元主题词汇| |补全对话|5题|亚马逊雨林情境交际|创设真实语用场景，提升语言运用能力| |选词填空|15题|湿地保护、生态问题（如provide, importance）|结合环保素材，考查词汇灵活运用| |阅读理解|3题|气候变化对生态影响|培养信息提取与思维辨析能力| |任务型阅读|5题|壶口瀑布介绍|融合文化传承，提升综合探究能力| |书面表达|1题|“保护自然”主题写作|整合问题解决与表达能力，体现思维品质|

Unit 7 The natural world单元分层练习 学校:___________姓名：___________班级：___________考号：___________ 一、翻译 根据所给的汉语提示，默写单词 1．防止，阻止vt. ________ 2．贮存vt. ________ 3．海绵块n. ________ 4．起作用；行动vi.; 扮演vi.&vt. _______ 5．肾脏n. ________ 6．几乎，差不多，将近adv. ________ 7．吸收；使落入险境vt. ________ 8．有害的adj. ________ 9．因此adv. ________ 10．肺n. ________ 11．不幸地；悲伤地adv. ________ 12．吨n. ________ 13．伤害，损害vt. ________ 翻译下列短语 14．所有的种类的 ________ 15．清除；摆脱 ________ 16．在暴雨期间 ________ 17．组成，构成 ________ 18．吸收 ________ 19．二氧化碳 ________ 20．数百万的 ________ 21．一个更好的地方 ________ 22．三分之一 ________ 23．（使）慢下来 ________ 24．在中国的东北 ________ 25．为……提供……________ 26．全年 ________ 27．短暂停留 ________ 28．在白天 ________ 29．为了 ________ 30．导致 ________ 31．不停干某事 ________ 32．制定法律 ________ 33．要求得到某人的帮助 ________ 34．主动向某人提供某物 ________ 35．玩得开心，过得愉快 ________ 36．加入某人中来 ________ 37．……的数量 ________ 38．建立 ________ 二、补全对话 选择正确选项，其中有一个选项与对话内容无关。 A: Hi, Sarah. What’s the biggest rainforest in the world? B: 39 A: How big is it? B: 40 A．It is in South America. B．It is the Amazon Rainforest. C．It is over 5 million square kilometres. D．It is the smallest rainforest in the world. E．About 20% of the birds in the world live in it. F．But it is becoming smaller and smaller in size these days. A: Where is it? B: 41 It crosses eight countries and most part of it is in Brazil. A: Oh, you know so much about it. B: Well, my teacher told me last week. A: Could you tell me more about it? B: Of course. 42 A: It must be very special and beautiful. B: Yes, it is. 43 A: Why? B: Because people cut down lots of trees every year. A: That’s too bad. 三、选词填空 （一） 选用方框中所给的单词或短语并用其适当形式填空。 large   world   be home to   leave   free There are many wetlands in China and some of them have become the 44 important wetlands. The Yellow Sea Wetland is among them. It is in Yancheng, Jiangsu. It 45 many different kinds of animals. The world’s 46 Milu Deer Nature Reserve is in it. Many milu deer live 47 there. There are not many red crowned cranes 48 in the world, but every winter you can see some in the Yellow Sea Wetland. provide   lucky   much   real   the importance of The temperature in the wetlands is usually neither too high nor too low. There is a lot of rain and sunshine too. They are 49 good places for wildlife. 50 food and home for some special kinds of animals is not the only reason why we need to protect wetlands. Wetlands are important because they also prevent flooding. But some people want to change the wetlands to make 51 space for farms and buildings. This means there will be less and less space for wildlife. 52 , more and more people are beginning to realize 53 wetlands and wildlife. Every year, many activities are held to tell people more about wetlands. （二） 阅读短文，从方框中选择适当的词并用其正确形式填空，使短文通顺、意思完整。（每空限填一词，每词限用一次。） suggest, become, salty, am, they I’m not a sea but a lake. And I’m not dead. In fact, there is some life within me, and many plants and animals live around me. I’m 54 than any sea, so people can lie on my surface. Rivers flow into me. But now people take too much water from them. My water level is going down. I am 55 smaller year by year. Take less water, or I’ll dry up within the next 100 years. Then I really will 56 dead! I’m the rainforest of Madagascar. As my name 57 , I make rain for my plants and animals, such as monkeys, snakes and many kinds of flowers. For 80% of them, I’m 58 only home in the world. However, people are cutting down my trees for wood and to make space for farming. Please stop it. I’m disappearing. 四、阅读理解 Many topics about environmental protection are hot these days. More people learn that climate change influences different ecosystems, from coral reefs in the sea to wetlands on land. Penguins live in cold places. Their living places are becoming smaller because of climate change. Red‑crowned cranes need safe wetlands. Pollution may lead to bad results for them. Sadly, quite a few kinds of wildlife are becoming rare. We cannot change the big climate quickly, but small steps matter. We should get more knowledge. We can slow down pollution. Some groups create new projects and set up reserves. If we work together, we can prevent further damage to our home. 根据短文内容，选择最佳答案。 59．What influences coral reefs and wetlands according to the passage? A．Noisy cities. B．Climate change. C．Too much daytime. D．Too much mud. 60．What problem do penguins meet? A．They don’t have enough mud to live in. B．Their living places are getting smaller. C．They cannot trap carbon dioxide. D．They have too many ponds to choose from. 61．What is the writer’s opinion? A．We can do nothing to protect wildlife. B．Small steps also make a difference to environmental protection. C．We must create more wastewater to change climate. D．Red‑crowned cranes should move to coral reefs. 五、任务型阅读 阅读下面短文，回答下列问题。 Have you ever visited Hukou Waterfall? Hukou Waterfall is always compared to a shining pearl (明珠) in the middle reaches of the Yellow River. When the Yellow River runs through mountains to Hukou, the river narrows (变窄) from 300 meters to just over 50 meters. The water suddenly falls into a deep pool. As a result, a wonderful waterfall appears. It seems that the water pours into a big pot, which is how it got the name “Hukou”. The power of the waterfall is tremendous (巨大的) when it falls, so it is hard for you to get close to the main waterfall. Looking from far away, you can enjoy the amazing fog-covered water. The beauty cannot be described in words. You cannot know unless you visit it in person. There are four wonders of Hukou, “smoking in water”, “colourful bridge to the sky”, “dragons playing with waves” and “thunder generated from valley stream”. The waterfall flies straight down with water splashing (溅), clouds and mist rising. Under the sunlight, you will see a rainbow hanging over the waterfall. The poem “Chant to Hukou” written by Zhang Yingchun in the Ming Dynasty describes the beauty of “colourful bridge to the sky”. The view of Hukou Waterfall changes according to the seasons. So you can enjoy its special beauty from spring to winter. 62．How does the writer start the text? 63．Why is this waterfall called Hukou Waterfall? 64．What does the underlined word “it” in Paragraph 3 refer to? 65．What are the four wonders of Hukou Waterfall according to the text? 66．If you have a holiday, where will you go? Why? 六、书面表达 67．假设你们学校英文报正在举办以“保护自然”为主题的征文活动，请根据以下问题，以“Protecting the natural world”为题，写一篇英语短文投稿。 1. What natural problems are we facing now? 2. What can we do to protect the natural world? 3. Why is protecting the natural world important? 要求：1. 短文需包含所有问题要点，并适当发挥; 2. 词数100左右。 Protecting the natural world ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 学科网（北京）股份有限公司 《Unit 7 The natural world单元分层练习》参考答案 题号 59 60 61 答案 B B B 1．prevent 2．store 3．sponge 4．act 5．kidney 6．nearly 7．trap 8．harmful 9．therefore 10．lung 11．sadly 12．ton 13．harm 【详解】1．防止，阻止：prevent，动词。故填prevent。 2．贮存：store，动词。故填store。 3．海绵块：sponge，名词。故填sponge。 4．起作用；行动；扮演：act，动词。故填act。 5．肾脏：kidney，名词。故填kidney。 6．几乎，差不多，将近：nearly，副词。故填nearly。 7．吸收；使落入险境：trap，动词。故填trap。 8．有害的：harmful，形容词。故填harmful。 9．因此：therefore，副词。故填therefore。 10．肺：lung，名词。故填lung。 11．不幸地；悲伤地：sadly，副词。故填sadly。 12．吨：ton，名词。故填ton。 13．伤害，损害：harm，动词。故填harm。 14．all the types of 15．get rid of 16．during heavy rain 17．make up 18．take in 19．carbon dioxide 20．millions of 21．a better place 22．a third 23．slow down 【详解】14．“所有的种类的”的英文表达为all the types of。故填all the types of。 15．“清除；摆脱”的英文表达为get rid of。故填get rid of。 16．“在暴雨期间”的英文表达为during heavy rain。故填during heavy rain。 17．“组成，构成”的英文表达为make up。故填make up。 18．“吸收”的英文表达为take in。故填take in。 19．“二氧化碳”的英文表达为carbon dioxide。故填carbon dioxide。 20．“数百万的”的英文表达为millions of。故填millions of。 21．“一个更好的地方”的英文表达为a better place。故填a better place。 22．“三分之一”的英文表达为a third。故填a third。 23．“（使）慢下来”的英文表达为slow down。故填slow down。 24．in the northeast of China 25．provide sth for sb/provide sb with sth 26．all year round 27．for a short stay 28．in the daytime 29．in order to 30．lead to 31．keep doing sth 32．make laws 33．ask for one’s help 34．offer sb sth 35．have fun 36．join sb 37．the number of 38．set up 【详解】24．in the northeast of China：在中国的东北，介词短语。故填in the northeast of China。 25．provide sth for sb/provide sb with sth：为……提供……，动词短语。故填provide sth for sb/provide sb with sth。 26．all year round：全年，副词短语。故填all year round。 27．for a short stay：短暂停留，介词短语。故填for a short stay。 28．in the daytime：在白天，介词短语。故填in the daytime。 29．in order to：为了，介词短语。故填in order to。 30．lead to：导致，动词短语。故填lead to。 31．keep doing sth：不停干某事，动词短语。故填keep doing sth。 32．make laws：制定法律，动词短语。故填make laws。 33．ask for one’s help：要求得到某人的帮助，动词短语。故填ask for one’s help。 34．offer sb sth：主动向某人提供某物，动词短语。故填offer sb sth。 35．have fun：玩得开心，过得愉快，动词短语。故填have fun。 36．join sb：加入某人中来，动词短语。故填join sb。 37．the number of：……的数量，名词短语。故填the number of。 38．set up：建立，动词短语。故填set up。 39．B 40．C 41．A 42．E 43．F 【导语】本文主要讲述了A和B关于世界上最大热带雨林的对话。 【详解】39．A询问世界上最大的热带雨林是什么，B需要直接回答是亚马逊雨林。B项“It is the Amazon Rainforest.”与上文A的提问直接对应。 40．A询问它有多大，B需要回答具体的面积大小。C项“It is over 5 million square kilometers.”说明了面积，与上文A的提问直接对应。 41．A询问它在哪里，B需要回答在南美洲，并补充说明跨越八国、大部分在巴西。A项“It is in South America.”说明了地理位置，与下文B的补充说明衔接自然。 42．A请求B多说一些关于雨林的信息，B需要介绍雨林的特点。E项“About 20% of the birds in the world live in it.”说明了雨林中鸟类的占比，与上文A的请求直接对应。 43．A感叹雨林一定非常特别和美丽，B需要肯定这一点，但补充说明雨林正在变得越来越小，从而引出下文A询问“为什么”以及B关于砍伐树木的解释。F项“But it is becoming smaller and smaller in size these days.”与上文A的赞美形成转折，与下文A的追问和B的解释直接对应。 44．world’s 45．is home to 46．largest 47．freely 48．left 49．really 50．Providing 51．more 52．Luckily 53．the importance of 【导语】本文主要介绍了中国的湿地的重要性以及保护湿地的原因。 【详解】44．句意：中国有许多湿地，其中一些已成为世界上重要的湿地。根据“some of them have become the... important wetlands.”和备选词可知，中国的一些湿地已成为世界上重要的湿地，world“世界”，此处应填所有格形式world’s“世界的”，作定语。故填world’s。 45．句意：它是许多不同种类动物的家园。根据“It... many different kinds of animals.”和备选词可知，“It”指代“黄海湿地”，表示黄海湿地是许多不同种类动物的家园，应用be home to“……的家园”，时态为一般现在时，主语是It，所以be动词用is。故填is home to。 46．句意：世界上最大的麋鹿自然保护区就在这里。根据“The world’s... Milu Deer Nature Reserve is in it.”和备选词可知，此处表示世界上最大的麋鹿自然保护区，large是形容词原形，其最高级形式是largest。故填largest。 47．句意：许多麋鹿在那里自由自在地生活。根据“Many milu deer live... there.”和备选词可知，此处表示自由自在地生活，应填free的副词形式freely，修饰动词live。故填freely。 48．句意：世界上剩下的丹顶鹤不多了，但每年冬天你都能在黄海湿地看到一些。根据“There are not many red crowned cranes... in the world,”和备选词可知，此处表示世界上剩下的丹顶鹤不多了，leave是动词，应填过去分词left作后置定语，修饰“red crowned cranes”，意为“剩余的”。故填left。 49．句意：它们确实是野生动物的好去处。根据“They are... good places for wildlife.”和备选词可知，此处表示“确实是好地方”，修饰形容词good，real为形容词，需变为副词形式really。故填really。 50．句意：为一些特殊种类的动物提供食物和家园并不是我们需要保护湿地的唯一原因。分析句子可知，此处表示为一些特殊种类的动物提供食物和家园，provide是动词，“... food and home for some special kinds of animals”作主语，所以填动名词providing，句首首字母要大写。故填Providing。 51．句意：但一些人想改变湿地，为农场和建筑提供更多空间。根据“But some people want to change the wetlands to make... space for farms and buildings.”和备选词可知，改变湿地是为了获取更多的空间，应填much的比较级more“更多的”。故填more。 52．句意：幸运的是，越来越多的人开始意识到湿地和野生动物的重要性。分析句子可知，此处修饰整个句子，应填lucky的副词luckily，意为“幸运的是”，句首首字母要大写。故填Luckily。 53．句意：幸运的是，越来越多的人开始意识到湿地和野生动物的重要性。根据“more and more people are beginning to realize... wetlands and wildlife.”和备选词可知，此处指越来越多的人开始意识到湿地和野生动物的重要性，the importance of“……的重要性”。故填the importance of。 54．saltier 55．becoming 56．be 57．suggests 58．their 【导语】本文是一篇说明文，以第一人称分别介绍了死海和马达加斯加雨林面临的生态危机，呼吁人们保护环境。 【详解】54．句意：我比任何海洋都要咸，所以人们可以躺在我的水面上。句中有than，应用形容词比较级形式，salty的比较级为saltier。 55．句意：我正年复一年地变得越来越小。根据前句“My water level is going down.”和本句时间状语“year by year”可知，此处表示正在逐渐变小的过程，应用现在进行时，结构为“be + doing”，become的现在分词为becoming。 56．句意：那样的话我就真的会死掉。will后接动词原形，所填词与“dead”构成系表结构。am是be动词的一种形式，此处需还原为原形be。 57．句意：正如我的名字所暗示的那样，我为我的动植物降雨，比如猴子、蛇和许多种花。主语my name是第三人称单数，且陈述客观事实用一般现在时，故suggest用三单形式suggests。 58．句意：对于其中80%的物种来说，我是它们在世界上唯一的家园。修饰名词home，需用they的形容词性物主代词their。 59．B 60．B 61．B 【导语】本文介绍气候变化、污染正在威胁企鹅、丹顶鹤等野生动物的生存，呼吁大家从小事做起、携手行动，保护环境、减少生态破坏。 【详解】59．根据第一段“More people learn that climate change influences different ecosystems, from coral reefs in the sea to wetlands on land.”可知，是气候变化影响珊瑚礁与湿地。 60．根据第二段“Penguins live in cold places. Their living places are becoming smaller because of climate change.”可知，企鹅的生存地因气候变化正在缩小，对应B选项“Their living places are getting smaller.”。 61．根据第三段“We cannot change the big climate quickly, but small steps matter. ”可知，作者认为我们无法快速改变大气候，但微小行动也有重要意义，与B选项“Small steps also make a difference to environmental protection.”表述相符。 62．By asking a question. 63．Because the water falls into a deep pool and it seems that the water pours into a big pot. 64．Hukou Waterfall. 65．“Smoking in water”, “colourful bridge to the sky”, “dragons playing with waves” and “thunder generated from valley stream”. 66．I will go to Xi’ an. Because it is a city full of history and culture./I will go to Yunnan. Because the food there is delicious and the landscape there is beautiful./... 【导语】本文主要介绍了壶口瀑布的地理位置、名称由来、景观特点、四大奇观以及季节变化之美。 【详解】62．原文开头句子“Have you ever visited Hukou Waterfall?”是一般疑问句，作者以提出问题的方式开启本篇文章。 63．原文第二段“It seems that the water pours into a big pot, which is how it got the name “Hukou”.”，结合前文“The water suddenly falls into a deep pool.”，整合两处信息得到答案。 64．原文第三段“You cannot know unless you visit it in person.”，代词it指代前文提到的主体Hukou Waterfall。 65．原文第四段直接给出“There are four wonders of Hukou, “smoking in water”, “colourful bridge to the sky”, “dragons playing with waves” and “thunder generated from valley stream”.”，直接摘抄原文信息作答。 66．本题为开放性试题，答案不唯一。回答需要写明想去的地点，并且给出合理对应的理由，语法正确即可。 67．例文 Protecting the natural world Nowadays, we are facing many natural problems, such as frequent floods, serious air pollution and the decreasing number of wild animals. To protect the natural world, we can do small but meaningful things daily. For example, we can plant more trees, save water and electricity, and use reusable bags instead of plastic ones. Protecting the natural world is vital because it gives us clean air, fresh water and food. It is also the home of millions of living creatures. Only by living in harmony with nature can we have a healthy and happy life. 【详解】写作步骤 [第一步：审题立意] 确定文体：征文类说明文，以一般现在时为主 明确要点：当前面临的自然问题；个人保护自然的做法；保护自然的意义 确定人称：第一人称 注意事项：包含所有问题要点；100词左右 [第二步：构思布局] 三段式结构 开头段：介绍当前面临的严峻的自然问题 主体段：介绍个人保护自然的做法 结尾段：总结保护自然的意义 [第三步：要点展开] 要点一：严峻的自然问题 frequent floods/serious air pollution/the decreasing number of wild animals/water pollution等 要点二：个人保护自然的做法 plant more trees/save water and electricity/use reusable bags instead of plastic ones/sort rubbish/choose walking or riding bikes for short trips等 要点三：保护自然的意义 it gives us clean air, fresh water and food/the home of millions of living creatures/have a healthy and happy life/It balances the earth’s environment and supports all living things等 学科网（北京）股份有限公司 $