Unit 3 Trees and us（单元自测·广州卷专用）英语新教材沪教版七年级下册

2025-2026学年七年级下册英语单元自测（广州专用） Unit 3·培优卷 学校:___________班级：___________姓名：___________分数：___________ （时间：100分钟，满分：110分） 一、语言知识运用。(本大题共2大题，共25分) 第一节 语法选择(本大题共10小题，每小题1.5分，共15分) 阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。 Trees are important. They can provide animals with homes. Lots of products, like paper, are made 1 trees. However, they can give 2 these only if they are alive. So people have to do something to keep them 3 . Therefore, people spend much time and money 4 trees. They found that the tree would grow best in a climate (气候) with 5 sunlight and rain, and little sunlight or rain would stop the growth of a tree. We can know the change of climate by reading the pattern of rings in a tree trunk. You should count the rings of a tree trunk 6 the outside to the inside. If 7 tenth ring is far from the other rings, there must 8 lots of sunlight and rain. If the rings are close to each other, then the climate is bad. Study like this is not only for the history of weather, but also for the history of humans. You can find only sand now in one place of New Mexico. However, there were millions of people in the past. They 9 suddenly. Why? A group of scientists studied patterns of dead tree rings there, and they found that people went-away because they destroyed (破坏) all the trees 10 and build houses. 1．A．in B．from C．of D．with 2．A．our B．ours C．us D．we 3．A．healthy B．health C．healthily D．unhealthy 4．A．to make B．making C．to study D．studying 5．A．little B．few C．many D．much 6．A．from B．between C．for D．as 7．A．a B．an C．the D．/ 8．A．am B．is C．are D．be 9．A．are leaving B．left C．will leave D．leave 10．A．burning B．burn C．to burn D．to burning 【答案】 1．B 2．C 3．A 4．D 5．D 6．A 7．C 8．D 9．B 10．C 【导语】本文是一篇说明文。文章主要介绍了树木的重要性，如为动物提供栖息地、是很多产品的原材料等；还介绍了人们为保护树木所做的努力，以及通过树木年轮了解气候和人类历史等相关知识。 1． 句意：很多产品，比如纸，是由树木制成的。 in在……里面；from从；of表所属；with和。根据“are made”和“trees”可知，这里表示纸由树木制成，且看不出原材料，be made from“由……制成(看不出原材料)” 符合语境，故选B。 2．句意：然而，只有它们活着，才能给我们这些。 our我们的，形容词性物主代词；ours我们的，名词性物主代词；us我们，宾格；we我们，主格。根据“they can give”和“these”可知应是它们能给我们这些，而由“give”为动词可知后接宾格，故选C。 3．句意：所以人们得做些事来让它们保持健康。 healthy健康的，形容词；health健康，名词；healthily健康地，副词；unhealthy不健康的，形容词。根据“they can give ...these only if they are alive”并结合备选项可知人们需要保持树木健康，而“keep sth. + 形容词”表示“使某物处于某种状态”，故选A。 4．句意：因此，人们花费大量时间和金钱研究树。 to make制造，动词不定式形式；making动名词/现在分词形式；to study研究，动词不定式形式；studying动名词/现在分词形式。根据“They found”可知应是花费时间研究树，而由“spend”可知其用法为“spend + 时间/金钱 + (in) doing sth.”表示“花费时间/金钱做某事” ，故选D。 5．句意：他们发现树木在阳光和雨水充足的气候中长得最好 。 little几乎没有，修饰不可数名词；few几乎没有，修饰可数名词复数；many许多，修饰可数名词复数；much许多，修饰不可数名词。根据“ little sunlight or rain would stop the growth of a tree”可知树木在阳光和雨水充足的情况下长得好，且“sunlight”和“rain”为不可数名词，故选D。 6．句意：你应该从树干的年轮从外到里数 。 from从 ；between在……之间；for为了；as作为。根据“from”并结合备选项可知“from...to...”表示“从……到……” 符合语境，故选A。 7．句意：如果第十个年轮离其他年轮很远，那么一定有充足的阳光和雨水。 a一，用于辅音音素开头单词前；an一，用于元音音素开头单词前；the定冠词，表特指；/零冠词。根据“tenth”为序数词可知此处应用定冠词“the” ，表特指第十年，故选C。 8．句意：如果第十个年轮离其他年轮很远，那么一定有充足的阳光和雨水。 am是，主语为I；is是，主语为第三人称单数；are是，主语为复数或第二人称；be动词原形。根据“there”可知句子为“there be”句型，而must为情态动词，后接动词原形，故选D。 9．句意：他们突然离开了。 are leaving离开，现在进行时；left一般过去时；will leave一般将来时；leave一般现在时。根据“However, there were millions of people in the past.”可知，这里说的是过去的事情，用一般过去时，故选B。 10．句意：他们离开是因为他们砍光所有树木去烧和建造房屋 。 burning燃烧，动名词/现在分词形式；burn动词原形；to burn动词不定式形式；to burning介词to + 动名词。根据“they destroyed all the trees”和“and build houses”可知这里表示“砍树去烧”，用动词不定式表目的，故选C。 第二节 完形填空(本大题共10小题，每小题1分，共10分) 通读下面短文，掌握其大意，然后在各题所给的四个选项（A、B、C和D）中选出一个最佳选项。 Plants on earth are important to us because they give us food, wood and oxygen. They also make our earth beautiful. What would the earth be like if there weren’t 11 on it? Try to imagine a picture 12 this. There aren’t green trees or grass, or beautiful 13 of all colours. When spring comes, we can’t smell the sweetness of flowers or see the green of plants. It’s really a 14 world! We enjoy 15 plants everywhere, so we build 16 for them. We also try to find more places for them. But do you really like plants? Do you talk to them? Is it useful to love and 17 plants? Two scientists do an interesting experiment (实验). They plant two seeds of the same kind of plant next to each other and 18 them at the same time. They give one plant (Plant A) love and 19 talk to it. But they do nothing more to the other one (Plant B). Both of them grow bigger and bigger every day. 20 Plant A is always stronger and looks more beautiful than (比) Plant B．So let’s love plants and enjoy living with them. 11．A．animals B．vegetables C．people D．plants 12．A．for B．like C．of D．on 13．A．birds B．flowers C．fish D．cats 14．A．quiet B．dirty C．boring D．cold 15．A．seeing B．selling C．cutting D．taking 16．A．parks B．teahouses C．zoos D．markets 17．A．look for B．wait for C．talk to D．listen to 18．A．catch B．water C．teach D．change 19．A．never B．only C．seldom D．often 20．A．So B．But C．Because D．Or 【答案】 11．D 12．B 13．B 14．C 15．A 16．A 17．C 18．B 19．D 20．B 【导语】本文介绍了植物对地球的重要性，通过科学家的有趣实验证明：主动关爱更有利于植物生长。 11．句意：如果地球上没有植物，地球会是什么样子？ animals动物；vegetables蔬菜；people人；plants植物。根据“Plants on earth are important to us”可知，文章是围绕植物的重要性展开，此处提问没有植物的场景。故选D。 12．句意：试着想象一幅像这样的画面。 for为了；like像；of……的；on在……上。根据“a picture ... this”及后文描述没有花草树木可知，此处是指想象一幅像这样的画面，用介词like。故选B。 13．句意：没有绿树青草，也没有各种颜色的美丽花朵。 birds鸟；flowers花；fish鱼；cats猫。根据“When spring comes, we can’t smell the sweetness of flowers”可知，是指没有各种颜色的花。故选B。 14．句意：这真是一个无聊的世界！ quiet安静的；dirty脏的；boring无聊的；cold寒冷的。根据“When spring comes, we can’t smell the sweetness of flowers or see the green of plants.”可知，没有花草树木，看不到绿色闻不到花香，这样的世界是无聊的。故选C。 15．句意：我们喜欢看到到处都是植物，所以我们为它们建造公园。 seeing看见；selling卖；cutting切；taking拿。根据“We enjoy ... plants everywhere”可知，我们喜欢看到到处都是植物。故选A。 16．句意：我们喜欢看到到处都是植物，所以我们为它们建造公园。 parks公园；teahouses茶馆；zoos动物园；markets市场。根据“so we build ... for them”可知，想看到植物，所以是建造公园。故选A。 17．句意：爱并和植物交谈真的有用吗？ look for寻找；wait for等待；talk to和……交谈；listen to听。根据“Do you talk to them?”可知，是指和植物交谈。故选C。 18．句意：他们种下两颗同种植物的种子挨在一起，同时给它们浇水。 catch抓到；water浇水；teach教；change改变。根据“plant two seeds of the same kind of plant”可知，种植植物后需要给它们浇水。故选B。 19．句意：他们给一株植物(植物A)爱，并经常和它交谈。 never从不；only只；seldom很少；often经常。根据“They give one plant (Plant A) love”可知，给了植物A爱，因此会经常和它交谈。故选D。 20．句意：但是植物A总是比植物B更强壮，看起来更漂亮。 So所以；But但是；Because因为；Or或者。前文说两棵植物都在生长，后文说A长势更好，前后是转折关系，But符合逻辑。故选B。 二、阅读。(本大题共2大题，共35分) 第一节 阅读理解(本大题共15小题，每小题2分，共30分) A A Simple Way to Propagate Plants (繁殖植物) 1. Choose a healthy parent plant. 2. Choose a green and healthy stem. 3. Cut just below a node (the part of a plant stem where one or more leaves grow out). 4. Leave about two leaves. 5. Put the cutting in the water (change the water every few days). 6. Wait for the cutting to grow some roots. 7. Plant the cutting into a pot with some potting mix (盆栽土) and water it. 8. Monitor. 21．What do we do first when we propagate a plant? A．Choose a good pot. B．Choose the best stem. C．Choose the best potting mix. D．Choose a healthy parent plant. 22．Which of the following is TRUE about nodes? A．They will become new leaves at last. B．We should keep them away from water. C．We should leave two nodes on a cutting. D．They are where leaves grow out on the stem. 23．Why should we do step 5? A．To let the roots grow. B．To keep the stem green. C．To let more leaves grow. D．To keep the cutting clean. 24．After planting the cutting, we should ________. A．water it and watch it carefully B．water it every few hours C．cut the small leaves on it D．put more potting mix into the pot 25．In which part of a children’s magazine can we find the material? A．Story Time. B．Do It Yourself. C．Share Your Ideas. D．Today in History. 【答案】21．D 22．D 23．A 24．A 25．B 【导语】本文是一篇说明文，主要介绍了繁殖植物的一种简单方法，包括选择健康的母株、选取绿色健康的茎、在节点下方切割、保留两片叶子、将插条放入水中等待生根、将生根的插条移植到盆栽土中并浇水以及后续的监测等步骤。 21．细节理解题。根据文章“1. Choose a healthy parent plant.”可知，繁殖植物时我们首先要做的是选择健康的母株。故选D。 22．细节理解题。根据文章“Cut just below a node (the part of a plant stem where one or more leaves grow out).”可知，节点是植物茎上长出叶子的地方。故选D。 23．细节理解题。根据文章“5. Put the cutting in the water (change the water every few days). 6. Wait for the cutting to grow some roots.”可知，把插条放入水中是为了让插条生根，所以第5步是为了让根生长。故选A。 24．细节理解题。根据文章“7. Plant the cutting into a pot with some potting mix (盆栽土) and water it. 8. Monitor.”可知，把插条种进盆栽土并浇水后，我们应该浇水并仔细观察它。故选A。 25．推理判断题。文章主要介绍了繁殖植物的一种简单方法，属于动手实践类内容，因此我们可以在儿童杂志的“自己动手做”部分找到这篇文章。故选B。 B Once there were two neighbors. One of them was an old teacher, the other was an office worker. Both of them grew the same plants in their gardens. The old teacher gave a little water to his plants and didn’t always care for (照顾) them. His neighbor gave much water to his plants, let them get much sunshine and care for them well. The old teacher’s plants were simple but looked good. The office worker’s plants were much taller and greener. One night, there was heavy rain. The next morning, the office worker’s plants were uprooted (连根拔起), but the old teacher’s plants stood firmly (稳固地). The office worker was surprised and went to the old teacher and asked, “We both grew the same plants together. I looked after my plants better than you did, and I gave them more water. My plants were weak (弱的) and uprooted, but yours weren’t. Why?” The old teacher smiled and said, “You gave your plants more water, so they didn’t need to work for it. I gave them a little water, so their roots grew deeper (更深) to get more water. It made them stronger.” 26．How did the old teacher care for the plants? A．He watered his plants well. B．He took good care of his plants. C．He didn’t water his plants. D．He gave his plants a little water. 27．What happened to the office worker’s plants after heavy rain? A．They were uprooted. B．They stood firmly. C．They became greener. D．They looked good. 28．What can we know from the passage? A．The old teacher was very good at planting. B．The office worker was the old teacher’s student before. C．The old teacher didn’t like working with the office worker. D．The office worker’s plants were different from the old teacher’s plants. 29．What does the underlined word “it” in Paragraph 4 refer to (指代)? A．The sunshine. B．The root. C．The water. D．The air. 30．What would be the best title for this passage? A．Growing plants is not as easy as it looks B．Too much care can make us become weak C．Heavy rain can make the plants die D．Plants know how to look after themselves 【答案】26．D 27．A 28．A 29．C 30．B 【导语】本文是说明文，主要介绍了两个邻居在各自的花园里种了相同的植物，一个对植物精心照顾，一个只是每天给植物浇一点水。一场暴雨过后，被精心照顾的植物被连根拔起，而不太受到照顾的植物却屹立不倒。 26．细节理解题。根据第一段“The old teacher gave a little water to his plants ...”可知，老教师每天给他的植物浇一点水。故选D。 27．细节理解题。根据第二段“the office worker’s plants were uprooted (连根拔起)”可知，办公室职员的植物被连根拔起。故选A。 28．推理判断题。根据“The old teacher smiled and said,‘You gave your plants more water, so they didn’t need to work for it. I gave them a little water, so their roots grew deeper (更深) to get more water. It made them stronger.’”可知，老教师很擅长种植物，他只给植物浇一点水，植物只能把根扎得更深，以获得更多的水，这使得它们更强壮。故选A。 29．词句猜测题。第四段中“You gave your plants more water, so they didn’t need to work for it.”里的it指代的是前文提到的water，即植物不需要费力去获取水分。故选C。 30．最佳标题题。文章通过两种种植方式的对比，说明过度的呵护会让植物或人变得脆弱，而适度的“磨砺”才能让其更强大，因此“Too much care can make us become weak”最符合文章主旨。故选B。 C Scientists found plants could “talk”. Lilach Hadany and her team recorded (录音) some plants in different places. Their recordings showed that the plants made some sounds. After the scientists changed their recordings, people could hear plants clicking (咔嗒) clearly. They also found the plants hardly clicked when they had enough water. As their soil (土壤) got drier, they clicked more and more. When the scientists cut off a part of the plants, the plants also clicked more. But the clicking wasn’t the same as when the plants needed water. The plants made more sounds when they felt bad. Because of these findings, the scientists thought that they can use a plant’s sounds to find out when it needs help, and what problem it is having. Some questions come with the study. One important question is: Do plants make sounds to talk with each other? Other studies showed that plants seem to talk in some ways. If some animals are eating the plants, the plants will send chemicals into the air. Soon, nearby plants start to make other chemicals that don’t taste good to the animals. Maybe the sounds could work in the same way. Another question is: Is anything listening to the plants? Hadany says that she and her team will study if plants or animals will answer the clicking sounds of the plants. The study changed people’s ideas about plants. Hadany says, “Even in a quiet place, there are sounds that we don’t hear, and those sounds have things to tell.” 31．What does the underlined word “hardly” in Paragraph 2 mean? A．sometimes B．Always C．Often D．almost never 32．Which of the following is TRUE according to the passage? A．Plants clicked more when the soil was too dry. B．Plants made no sound when scientists cut them off. C．Plants made sound to talk when animals were eating them. D．People couldn’t hear plants’ sounds because they were too quiet. 33．What will Hadany and her team study next? A．How do the plants make the clicking sounds? B．Do plants make sounds to talk with other plants? C．Will plants or animals answer plants’ clicking sounds? D．What can they do to change people’s ideas about plants? 34．Which one can be the title for the article? A．Plants can “talk”. B．Plants on Earth C．Beautiful music D．The sound of nature 35．We can read this passage from a _________. A．fairy story B．science magazine C．news report D．travel guide 【答案】31．D 32．A 33．C 34．A 35．B 【导语】本文是一篇说明文，介绍了科学家发现植物在缺水或受损时会发出咔嗒声，并推测这种声音可能用于交流。研究还提出未来探索方向，颠覆了人们对植物“沉默”的传统认知。 31．词句猜测题。根据“They also found the plants hardly clicked when they had enough water. As their soil (土壤) got drier, they clicked more and more.”可知，此处是指植物有充足的水分时候，它们几乎不会发出咔嗒声。因此hardly与almost never“几乎从来不会”意思相近。故选D。 32．细节理解题。根据“As their soil (土壤) got drier, they clicked more and more.”可知，随着土壤变得越来越干燥，它们发出咔嗒声越来越多。故选A。 33．细节理解题。根据“Hadany says that she and her team will study if plants or animals will answer the clicking sounds of the plants.”可知，下一步研究问题是“是否有植物或动物回应植物的咔嗒声”，故选C。 34．最佳标题题。本文主要介绍了科学家发现植物在缺水或受损时会发出咔嗒声，并推测这种声音可能用于交流。研究还提出未来探索方向，颠覆了人们对植物“沉默”的传统认知。故选A。 35．推理判断题。本文主要是与研究植物的一些特征有关。因此可能会在科学杂志上读到此文章。故选B。 第二节 阅读填空(本大题共5小题，每小题1分，共5分) 阅读短文及文后的A～E选项，选出可以填入各题空白处的最佳选项。 Trees are one of the oldest “citizens (公民)” of our Earth. They keep our air clean, provide us with lots of things and so on. Just like us, trees change a lot as they grow. At the age of 1 to 3, young trees learn how to protect themselves. 36 When trees are 4 years old, they begin to grow very quickly and become strong enough. 37 They grow more slowly and begin to produce flowers and fruit. When the tree is 20 to 25 years old, it becomes a real adult. The tree reaches its largest size. 38 It’s also a great place for a tree house or a place for us to read a book. Day by day, trees begin to grow older and older and even die. At this time, they still have their important place in nature. 39 When we are looking at the life of a tree, we learn that each period of life has its own happiness and difficulties. 40 A．The adult tree gives us oxygen and natural beauty. B．At the age of 15, trees become young adults. C．For example, many trees grow thorns to protect themselves. D．Enjoy every minute of the life of the trees and take care of the trees. E．When a tree becomes hollow (空心的) or part of it becomes dead, it provides a home for small animals. 【答案】36．C 37．B 38．A 39．E 40．D 【导语】本文通过树木的生长阶段类比人类的生命历程，描述了树木的不同年龄特征及其对自然的重要贡献，呼吁人们珍惜并关爱树木。 36．根据“At the age of 1 to 3, young trees learn how to protect themselves.”可知，1—3岁的树苗学习如何保护自己；选项C“例如，许多树长刺是为了保护自己。”符合语境。故选C。 37．根据“When trees are 4 years old, they begin to grow very quickly and become strong enough.”可知，当树长到4岁时，它们开始迅速生长，变得足够强壮；再根据“They grow more slowly and begin to produce flowers and fruit.”可知，它们生长得更慢，开始开花结果；由此推知此处是介绍树的生长历程；选项B“15 岁时，树成为年轻的成年树。”符合语境。故选B。 38．根据“It’s also a great place for a tree house or a place for us to read a book.”可知，这也是一个建树屋或读书的好地方，即此处是介绍成年树带来的好处；选项A“成年树给我们提供氧气和自然美。”符合语境。故选A。 39．根据“Day by day, trees begin to grow older and older and even die. At this time, they still have their important place in nature. ”可知，树变老甚至死亡仍有重要地位；选项E“当树空心或部分死亡时，为小动物提供家。”符合语境。故选E。 40．根据“When we are looking at the life of a tree, we learn that each period of life has its own happiness and difficulties.”可知，观察树的生命可知，每个阶段都有自己的快乐和困难；选项D“享受树木生命的每一分钟，爱护树木。”符合语境。故选D。 三、项目情境题(读写综合)。(本大题共2大题，共20分) 第一节 信息匹配(本大题共5小题，每小题2分，共10分) 下面的材料A-F是六种神奇的植物的简介，请根据五位外国留学生的兴趣和需求，推荐最适合他们研究的植物。 A．Its flowers look like flying egrets. What are egrets? They are a kind of bird. Because this plant’s flowers look like flying egrets, people call it the egret flower. It grows in Eastern Asia. B．An interesting plant in North America eats “meat”. When an insect (昆虫) comes near its leaves, the leaves close up tightly until the insect dies. Then, it enjoys its delicious meal. C． When it comes to laughing, this tree is funny. This is because the fruit of this tree has a hole in it. If the wind blows, this amazing tree “laughs”. When people first hear it laughing, they are usually quite surprised and begin to laugh along with the tree. It grows in the middle of Africa. D．This plant grows in the southwest of Africa. Like most plants, it has roots. But it has only two leaves and a stem (茎). Its two leaves continue to grow for its whole life. This plant can live as long as 1500 years, so people call it a living fossil. E. When this tree hurts, a kind of red liquid will come out. It looks like blood. People say it will cry when it hurts. It grows in Western Africa. 41 Mary found a strange plant with only two leaves. She wants to know more about it. 42 Jackie said he saw a bird-like flower. He felt it interesting and wanted to find it out. 43 Candy’s best friend is not happy. She wants to find a way to make her friend laugh. 44 Tony notices that there is a plant. The leaves may close up tightly to get its food. 45 Lucia’ s classmate doesn’t believe trees get hurt sometimes. He wants to show her. 【答案】41．D 42．A 43．C 44．B 45．E 【导语】本文是根据五个人的不同发现或需求为他们匹配合适的植物信息描述。 41．根据“Mary found a strange plant with only two leaves. She wants to know more about it.”可知，玛丽发现了一株只有两片叶子的奇怪植物，她想了解更多关于这种植物的信息。选项D“这种植物生长在非洲西南部。像大多数植物一样，它有根，但它只有两片叶子和一根茎。它的两片叶子会持续生长一辈子。这种植物能活1500年之久，所以人们称它为活化石。”与之匹配，因为D选项描述的植物正好只有两片叶子。故选D。 42．根据“Jackie said he saw a bird-like flower. He felt it interesting and wanted to find it out.”可知，杰基说他看到了一种像鸟的花，他觉得很有趣，想弄清楚是什么花。选项A“它的花看起来像飞翔的白鹭。白鹭是什么？它们是一种鸟。因为这种植物的花看起来像飞翔的白鹭，所以人们称它为白鹭花。它生长在东亚。”与之匹配，因为A选项描述了一种花看起来像飞翔的白鹭，符合杰基的描述。故选A。 43．根据“Candy’s best friend is not happy. She wants to find a way to make her friend laugh.”可知，坎迪最好的朋友不开心，她想找个办法让她的朋友笑起来。选项C“说到笑，这棵树很有趣。这是因为这棵树的果实上有一个洞。如果风吹来，这棵神奇的树就会‘笑’。当人们第一次听到它笑时，他们通常会感到很惊讶，并开始和树一起笑。它生长在非洲中部。”与之匹配，因为C选项描述了一棵有趣的树，其果实上的洞在风吹时会发出笑声，有可能让坎迪的朋友开心起来。故选C。 44．根据“Tony notices that there is a plant. The leaves may close up tightly to get its food.”可知，托尼注意到有一种植物，它的叶子可能会紧紧合拢来获取食物。选项B“北美有一种有趣的植物吃‘肉’。当一只昆虫靠近它的叶子时，叶子会紧紧合拢，直到昆虫死亡。然后，它享受美味的一餐。”与之匹配，因为B选项描述了一种会吃昆虫的植物，其叶子会紧紧合拢来捕捉昆虫，符合托尼的描述。故选B。 45．根据“Lucia’s classmate doesn’t believe trees get hurt sometimes. He wants to show her.”可知，露西亚的同学不相信树有时也会受伤，他想向她展示这一点。选项E“当这棵树受伤时，会流出一种红色的液体。它看起来像血。人们说它受伤时会哭。它生长在西非。”与之匹配，因为E选项描述了一棵树受伤时会流出像血一样的红色液体，这正好可以证明树有时也会受伤。故选E。 第二节 回答问题(本大题共5小题，每小题2分，共10分) 阅读短文，根据短文来回答下面5个问题。 A team found that plants can make sounds. The team recorded (录制) tomato plants at different times. It showed that the plants made ultrasound (超声波). Humans could only hear them with the help of a computer. As the team studied the sounds, they started to find some interesting facts. Plants made different sounds at different times. They seldom made sounds when they had enough water. But when the soil got dry, they made more sounds. The team also found that plants made sounds when they got hurt. When the team cut a leaf from the plants, the plants also made sounds. But the sounds weren’t the same as when the plants needed water. The team developed a computer AI system (系统). They used it to tell different kinds of sounds. It was able to find the difference between thirsty (口渴的) plants and plants with cuts. Maybe one day we can use these sounds to find out a plant’s problem. The team’s finding is very meaningful. It shows us plants can make sounds, and that can be helpful to farmers. 46．How did the team find that plants can make sounds? 47．What can help humans hear the sounds of plants? 48．When did plants make sounds?（写出文中提到的任意一个方面） 49．What did the team use the computer AI system to do? 50．What do you think of the team’s finding? 【答案】46．The team recorded tomato plants at different times and found that plants made ultrasound. 47．A computer. 48．When the soil got dry./When they got hurt. 49．To tell different kinds of sounds. 50．It is very meaningful and helpful to farmers. 【导语】本文是一篇说明文。文章介绍了一个研究团队发现植物能发出声音，他们通过录制番茄植株的声音，发现植物在不同情况下会发出不同的超声波，还开发了计算机人工智能系统来区分这些声音，该发现对农民很有帮助。 46．根据“The team recorded (录制) tomato plants at different times. It showed that the plants made ultrasound (超声波).”可知，该团队通过在不同时间录制番茄植株的声音发现植物能发出声音，故填The team recorded tomato plants at different times and found that plants made ultrasound. 47．根据“Humans could only hear them with the help of a computer.”可知，计算机能帮助人类听到植物的声音，故填A computer. 48．根据“But when the soil got dry, they made more sounds. The team also found that plants made sounds when they got hurt.”可知，当土壤变干或植物受伤时，植物会发出声音，故填When the soil got dry./When they got hurt. 49．根据“The team developed a computer AI system (系统). They used it to tell different kinds of sounds.”可知，该团队用计算机人工智能系统来区分不同种类的声音，故填To tell different kinds of sounds. 50．开放性试题，言之有理即可，根据“The team’s finding is very meaningful. It shows us plants can make sounds, and that can be helpful to farmers.”可知，这个团队的发现很有意义且对农民有帮助，故填It is very meaningful and helpful to farmers. 四、写作。(本大题共3大题，共30分) 第一节 短文填空(本大题共5小题，每小题1分，共5分) 阅读短文，根据上下文和所给的首字母写出所缺单词。注意使用正确形式，每空限填一词。 Tree Planting Day is a day for planting trees. It’s on March 12th each year in China. On that day, people usually plant small trees. They f 51 dig a hole in the ground and then they put a tree in the hole. A 52 adding some soil, they water the tree. People from different countries also celebrate (庆祝) their own Tree Planting Day. For e 53 , in Australia, National Tree Day falls on the last weekend of July. In Canada, Maple Leaf Day is celebrated during National Forest Week. A tree makes the air c 54 and fresh. And it also provides shade (树荫) for people. Let’s join hands to plant trees and p 55 our environment together! 【答案】51．first/irst 52．After/fter 53．example/xample 54．clean/lean 55．protect/rotect 【导语】本文主要介绍了植树节的时间以及植树的过程，还介绍了不同国家的植树节，最后呼吁大家一起植树来保护环境。 51．句意：他们首先在地上挖一个洞，然后把树放进洞里。根据“dig a hole in the ground and then they put a tree in the hole”可知，此处描述的是植树的步骤，结合首字母“f”，应填副词“first”，表示“首先”。故填first。 52．句意：在添加一些土壤后，他们给树浇水。根据“adding some soil, they water the tree”可知，此处描述的是植树的步骤，结合首字母“A”，应填介词“After”，表示“在……之后”。故填After。 53．句意：例如，在澳大利亚，国家植树节在七月的最后一个周末。根据“in Australia, National Tree Day falls on the last weekend of July”可知，此处是在举例说明不同国家的植树节，结合首字母“e”，应填名词“example”，构成短语“for example”，表示“例如”。故填example。 54．句意：树使空气干净清新。根据“fresh”及首字母“c”可知，此处指空气干净清新，用形容词“clean”表示“干净的”，作宾语补足语。故填clean。 55．句意：让我们携手植树，共同保护我们的环境！根据“Let’s join hands to plant trees”及“our environment”可知，植树是为了保护环境，结合首字母“p”，应填动词“protect”，表示“保护”，且“and”连接两个并列的动词不定式，后一个可省略“to”。故填protect。 第二节 语法填空(本大题共5小题，每小题1分，共5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。 Tom’s science teacher asked the class to study plant growth. He spent hours reading online 56 (survey) about sunlight and water. Then, he wrote a report to 57 (description) his experiment step by step. On the 58 (four) day of his project, something strange happened. One plant grew shockingly fast—almost 10 centimeters overnight! Tom checked the plant carefully and talked to 59 (he), “Did the magic work?” His teacher praised his work and said, “This result seems 60 (usual). Let’s share it with the whole class and discuss together!” 【答案】56．surveys 57．describe 58．fourth 59．himself 60．unusual 【导语】本文主要讲述了汤姆在研究植物生长的实验中发现一株植物长得惊人地快。 56．句意：他花了好几个小时在线阅读有关阳光和水的调查。根据“He spent hours reading online…about sunlight and water.”可知汤姆阅读了有关阳光和水的调查，此处应用名词复数形式。故填surveys。 57．句意：然后，他写了一篇报告来详细描述他的实验步骤。根据“Then, he wrote a report to…his experiment step by step.”可知此处是指描述实验步骤，应用description的动词原形，此处为动词不定式作目的状语。故填describe。 58．句意：在他进行实验的第四天，发生了一件奇怪的事。根据“On the…day of his project”可知此处是指第四天，应用four的序数词。故填fourth。 59．句意：汤姆仔细地检查了那株植物，自言自语地说：“魔法灵验了吗？”talk to oneself“自言自语”，此处应用he的反身代词。故填himself。 60．句意：这个结果似乎不寻常。根据“Let’s share it with the whole class and discuss together!”可知此处是说这个结果不寻常，unusual“不寻常的”，此处为形容词作表语。故填unusual。 第三节 书面表达(本大题共1小题，共20分) 61．树木对人类的生命具有相当重要的价值。树木给人类带来的不仅仅是食物、木材、住房和工作，而更重要的是它们对人类赖以生存的环境有着重大的生态效益。如果人类毁坏树木，那就是毁坏人类自己的家园。请你以“Trees are important”为题目，按照以下提示，写一篇英语短文，谈谈保护树木的必要性。 提示：1.说明树木对人类生存的重要性； 2.谈谈树木日渐减少的现状及原因； 3.保护树木我们应该采取哪些措施。 Trees are important Trees are our friends and they are helpful to us. ___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 【答案】参考范文 Trees are important Trees are our friends and they are helpful to us. Trees provide us with a lot of useful things, such as fruits, wood, and even jobs. And they are very helpful to protect our living environment. People and animals depend on trees a lot. However, trees are getting fewer and fewer these days. People cut down a great number of trees for money and they don’t plant trees. What’s worse, some forests are losing because of wildfires. What a pity. Therefore, it is time to do something to protect trees. Firstly, we should call on people not to cut down so many trees and some laws should be carried out to stop people from cutting down trees. Secondly, we can hold some activities to plant trees on some special days, such as the Tree Planting Day. Thirdly, we should not drop any drink bottles or cigarettes in the wild, which may cause forest fires. I hope everyone can protect trees. In fact, protecting trees means protecting ourselves. 【详解】[总体分析] ①题材：本文是一篇材料作文； ②时态：时态是“一般现在时”； ③提示：考生应注意不要遗漏要点，并要适当发挥补充，注意使用正确的词汇和句型，注意行文连贯和逻辑。 [写作步骤] 第一步，表明写作意图，以“树木是人类的朋友并且很有帮助”来引出下文； 第二步，说明树木的重要性以及树木日渐减少的现状和原因； 第三步，表述保护树木的措施，可用firstly，secondly，thirdly这样的词语使得文章更连贯，并注意总结文章，强调要保护树木。 [亮点词汇] ①provide sb. with sth.给某人提供某物 ②depend on依赖 ③a great number of大量的 ④stop sb. from doing sth.阻止某人做某事 [高分句型] ①Firstly, we should call on people not to cut down so many trees and some laws should be carried out to stop people from cutting down trees.（带有情态动词的被动语态） ②Thirdly, we should not drop any drink bottles or cigarettes in the wild, which may cause forest fires.（which引导非限制性定语从句） 原创精品资源学科网独家享有版权，侵权必究！1 学科网（北京）股份有限公司1 / 14 学科网（北京）股份有限公司 $ ………………○………………外………………○………………装………………○………………订………………○………………线………………○……………… ………………○………………内………………○………………装………………○………………订………………○………………线………………○……………… 此卷只装订不密封 ………………○………………内………………○………………装………………○………………订………………○………………线………………○……………… ………………○………………外………………○………………装………………○………………订………………○………………线………………○……………… … 学校：______________姓名：_____________班级：_______________考号：______________________ 2025-2026学年七年级下册英语单元自测（广州专用） Unit 3·培优卷 学校:___________班级：___________姓名：___________分数：___________ （时间：100分钟，满分：110分） 一、语言知识运用。(本大题共2大题，共25分) 第一节 语法选择(本大题共10小题，每小题1.5分，共15分) 阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。 Trees are important. They can provide animals with homes. Lots of products, like paper, are made 1 trees. However, they can give 2 these only if they are alive. So people have to do something to keep them 3 . Therefore, people spend much time and money 4 trees. They found that the tree would grow best in a climate (气候) with 5 sunlight and rain, and little sunlight or rain would stop the growth of a tree. We can know the change of climate by reading the pattern of rings in a tree trunk. You should count the rings of a tree trunk 6 the outside to the inside. If 7 tenth ring is far from the other rings, there must 8 lots of sunlight and rain. If the rings are close to each other, then the climate is bad. Study like this is not only for the history of weather, but also for the history of humans. You can find only sand now in one place of New Mexico. However, there were millions of people in the past. They 9 suddenly. Why? A group of scientists studied patterns of dead tree rings there, and they found that people went-away because they destroyed (破坏) all the trees 10 and build houses. 1．A．in B．from C．of D．with 2．A．our B．ours C．us D．we 3．A．healthy B．health C．healthily D．unhealthy 4．A．to make B．making C．to study D．studying 5．A．little B．few C．many D．much 6．A．from B．between C．for D．as 7．A．a B．an C．the D．/ 8．A．am B．is C．are D．be 9．A．are leaving B．left C．will leave D．leave 10．A．burning B．burn C．to burn D．to burning 第二节 完形填空(本大题共10小题，每小题1分，共10分) 通读下面短文，掌握其大意，然后在各题所给的四个选项（A、B、C和D）中选出一个最佳选项。 Plants on earth are important to us because they give us food, wood and oxygen. They also make our earth beautiful. What would the earth be like if there weren’t 11 on it? Try to imagine a picture 12 this. There aren’t green trees or grass, or beautiful 13 of all colours. When spring comes, we can’t smell the sweetness of flowers or see the green of plants. It’s really a 14 world! We enjoy 15 plants everywhere, so we build 16 for them. We also try to find more places for them. But do you really like plants? Do you talk to them? Is it useful to love and 17 plants? Two scientists do an interesting experiment (实验). They plant two seeds of the same kind of plant next to each other and 18 them at the same time. They give one plant (Plant A) love and 19 talk to it. But they do nothing more to the other one (Plant B). Both of them grow bigger and bigger every day. 20 Plant A is always stronger and looks more beautiful than (比) Plant B．So let’s love plants and enjoy living with them. 11．A．animals B．vegetables C．people D．plants 12．A．for B．like C．of D．on 13．A．birds B．flowers C．fish D．cats 14．A．quiet B．dirty C．boring D．cold 15．A．seeing B．selling C．cutting D．taking 16．A．parks B．teahouses C．zoos D．markets 17．A．look for B．wait for C．talk to D．listen to 18．A．catch B．water C．teach D．change 19．A．never B．only C．seldom D．often 20．A．So B．But C．Because D．Or 二、阅读。(本大题共2大题，共35分) 第一节 阅读理解(本大题共15小题，每小题2分，共30分) A A Simple Way to Propagate Plants (繁殖植物) 1. Choose a healthy parent plant. 2. Choose a green and healthy stem. 3. Cut just below a node (the part of a plant stem where one or more leaves grow out). 4. Leave about two leaves. 5. Put the cutting in the water (change the water every few days). 6. Wait for the cutting to grow some roots. 7. Plant the cutting into a pot with some potting mix (盆栽土) and water it. 8. Monitor. 21．What do we do first when we propagate a plant? A．Choose a good pot. B．Choose the best stem. C．Choose the best potting mix. D．Choose a healthy parent plant. 22．Which of the following is TRUE about nodes? A．They will become new leaves at last. B．We should keep them away from water. C．We should leave two nodes on a cutting. D．They are where leaves grow out on the stem. 23．Why should we do step 5? A．To let the roots grow. B．To keep the stem green. C．To let more leaves grow. D．To keep the cutting clean. 24．After planting the cutting, we should ________. A．water it and watch it carefully B．water it every few hours C．cut the small leaves on it D．put more potting mix into the pot 25．In which part of a children’s magazine can we find the material? A．Story Time. B．Do It Yourself. C．Share Your Ideas. D．Today in History. B Once there were two neighbors. One of them was an old teacher, the other was an office worker. Both of them grew the same plants in their gardens. The old teacher gave a little water to his plants and didn’t always care for (照顾) them. His neighbor gave much water to his plants, let them get much sunshine and care for them well. The old teacher’s plants were simple but looked good. The office worker’s plants were much taller and greener. One night, there was heavy rain. The next morning, the office worker’s plants were uprooted (连根拔起), but the old teacher’s plants stood firmly (稳固地). The office worker was surprised and went to the old teacher and asked, “We both grew the same plants together. I looked after my plants better than you did, and I gave them more water. My plants were weak (弱的) and uprooted, but yours weren’t. Why?” The old teacher smiled and said, “You gave your plants more water, so they didn’t need to work for it. I gave them a little water, so their roots grew deeper (更深) to get more water. It made them stronger.” 26．How did the old teacher care for the plants? A．He watered his plants well. B．He took good care of his plants. C．He didn’t water his plants. D．He gave his plants a little water. 27．What happened to the office worker’s plants after heavy rain? A．They were uprooted. B．They stood firmly. C．They became greener. D．They looked good. 28．What can we know from the passage? A．The old teacher was very good at planting. B．The office worker was the old teacher’s student before. C．The old teacher didn’t like working with the office worker. D．The office worker’s plants were different from the old teacher’s plants. 29．What does the underlined word “it” in Paragraph 4 refer to (指代)? A．The sunshine. B．The root. C．The water. D．The air. 30．What would be the best title for this passage? A．Growing plants is not as easy as it looks B．Too much care can make us become weak C．Heavy rain can make the plants die D．Plants know how to look after themselves C Scientists found plants could “talk”. Lilach Hadany and her team recorded (录音) some plants in different places. Their recordings showed that the plants made some sounds. After the scientists changed their recordings, people could hear plants clicking (咔嗒) clearly. They also found the plants hardly clicked when they had enough water. As their soil (土壤) got drier, they clicked more and more. When the scientists cut off a part of the plants, the plants also clicked more. But the clicking wasn’t the same as when the plants needed water. The plants made more sounds when they felt bad. Because of these findings, the scientists thought that they can use a plant’s sounds to find out when it needs help, and what problem it is having. Some questions come with the study. One important question is: Do plants make sounds to talk with each other? Other studies showed that plants seem to talk in some ways. If some animals are eating the plants, the plants will send chemicals into the air. Soon, nearby plants start to make other chemicals that don’t taste good to the animals. Maybe the sounds could work in the same way. Another question is: Is anything listening to the plants? Hadany says that she and her team will study if plants or animals will answer the clicking sounds of the plants. The study changed people’s ideas about plants. Hadany says, “Even in a quiet place, there are sounds that we don’t hear, and those sounds have things to tell.” 31．What does the underlined word “hardly” in Paragraph 2 mean? A．sometimes B．Always C．Often D．almost never 32．Which of the following is TRUE according to the passage? A．Plants clicked more when the soil was too dry. B．Plants made no sound when scientists cut them off. C．Plants made sound to talk when animals were eating them. D．People couldn’t hear plants’ sounds because they were too quiet. 33．What will Hadany and her team study next? A．How do the plants make the clicking sounds? B．Do plants make sounds to talk with other plants? C．Will plants or animals answer plants’ clicking sounds? D．What can they do to change people’s ideas about plants? 34．Which one can be the title for the article? A．Plants can “talk”. B．Plants on Earth C．Beautiful music D．The sound of nature 35．We can read this passage from a _________. A．fairy story B．science magazine C．news report D．travel guide 第二节 阅读填空(本大题共5小题，每小题1分，共5分) 阅读短文及文后的A～E选项，选出可以填入各题空白处的最佳选项。 Trees are one of the oldest “citizens (公民)” of our Earth. They keep our air clean, provide us with lots of things and so on. Just like us, trees change a lot as they grow. At the age of 1 to 3, young trees learn how to protect themselves. 36 When trees are 4 years old, they begin to grow very quickly and become strong enough. 37 They grow more slowly and begin to produce flowers and fruit. When the tree is 20 to 25 years old, it becomes a real adult. The tree reaches its largest size. 38 It’s also a great place for a tree house or a place for us to read a book. Day by day, trees begin to grow older and older and even die. At this time, they still have their important place in nature. 39 When we are looking at the life of a tree, we learn that each period of life has its own happiness and difficulties. 40 A．The adult tree gives us oxygen and natural beauty. B．At the age of 15, trees become young adults. C．For example, many trees grow thorns to protect themselves. D．Enjoy every minute of the life of the trees and take care of the trees. E．When a tree becomes hollow (空心的) or part of it becomes dead, it provides a home for small animals. 三、项目情境题(读写综合)。(本大题共2大题，共20分) 第一节 信息匹配(本大题共5小题，每小题2分，共10分) 下面的材料A-F是六种神奇的植物的简介，请根据五位外国留学生的兴趣和需求，推荐最适合他们研究的植物。 A．Its flowers look like flying egrets. What are egrets? They are a kind of bird. Because this plant’s flowers look like flying egrets, people call it the egret flower. It grows in Eastern Asia. B．An interesting plant in North America eats “meat”. When an insect (昆虫) comes near its leaves, the leaves close up tightly until the insect dies. Then, it enjoys its delicious meal. C． When it comes to laughing, this tree is funny. This is because the fruit of this tree has a hole in it. If the wind blows, this amazing tree “laughs”. When people first hear it laughing, they are usually quite surprised and begin to laugh along with the tree. It grows in the middle of Africa. D．This plant grows in the southwest of Africa. Like most plants, it has roots. But it has only two leaves and a stem (茎). Its two leaves continue to grow for its whole life. This plant can live as long as 1500 years, so people call it a living fossil. E. When this tree hurts, a kind of red liquid will come out. It looks like blood. People say it will cry when it hurts. It grows in Western Africa. 41 Mary found a strange plant with only two leaves. She wants to know more about it. 42 Jackie said he saw a bird-like flower. He felt it interesting and wanted to find it out. 43 Candy’s best friend is not happy. She wants to find a way to make her friend laugh. 44 Tony notices that there is a plant. The leaves may close up tightly to get its food. 45 Lucia’ s classmate doesn’t believe trees get hurt sometimes. He wants to show her. 第二节 回答问题(本大题共5小题，每小题2分，共10分) 阅读短文，根据短文来回答下面5个问题。 A team found that plants can make sounds. The team recorded (录制) tomato plants at different times. It showed that the plants made ultrasound (超声波). Humans could only hear them with the help of a computer. As the team studied the sounds, they started to find some interesting facts. Plants made different sounds at different times. They seldom made sounds when they had enough water. But when the soil got dry, they made more sounds. The team also found that plants made sounds when they got hurt. When the team cut a leaf from the plants, the plants also made sounds. But the sounds weren’t the same as when the plants needed water. The team developed a computer AI system (系统). They used it to tell different kinds of sounds. It was able to find the difference between thirsty (口渴的) plants and plants with cuts. Maybe one day we can use these sounds to find out a plant’s problem. The team’s finding is very meaningful. It shows us plants can make sounds, and that can be helpful to farmers. 46．How did the team find that plants can make sounds? 47．What can help humans hear the sounds of plants? 48．When did plants make sounds?（写出文中提到的任意一个方面） 49．What did the team use the computer AI system to do? 50．What do you think of the team’s finding? 四、写作。(本大题共3大题，共30分) 第一节 短文填空(本大题共5小题，每小题1分，共5分) 阅读短文，根据上下文和所给的首字母写出所缺单词。注意使用正确形式，每空限填一词。 Tree Planting Day is a day for planting trees. It’s on March 12th each year in China. On that day, people usually plant small trees. They f 51 dig a hole in the ground and then they put a tree in the hole. A 52 adding some soil, they water the tree. People from different countries also celebrate (庆祝) their own Tree Planting Day. For e 53 , in Australia, National Tree Day falls on the last weekend of July. In Canada, Maple Leaf Day is celebrated during National Forest Week. A tree makes the air c 54 and fresh. And it also provides shade (树荫) for people. Let’s join hands to plant trees and p 55 our environment together! 第二节 语法填空(本大题共5小题，每小题1分，共5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。 Tom’s science teacher asked the class to study plant growth. He spent hours reading online 56 (survey) about sunlight and water. Then, he wrote a report to 57 (description) his experiment step by step. On the 58 (four) day of his project, something strange happened. One plant grew shockingly fast—almost 10 centimeters overnight! Tom checked the plant carefully and talked to 59 (he), “Did the magic work?” His teacher praised his work and said, “This result seems 60 (usual). Let’s share it with the whole class and discuss together!” 第三节 书面表达(本大题共1小题，共20分) 61．树木对人类的生命具有相当重要的价值。树木给人类带来的不仅仅是食物、木材、住房和工作，而更重要的是它们对人类赖以生存的环境有着重大的生态效益。如果人类毁坏树木，那就是毁坏人类自己的家园。请你以“Trees are important”为题目，按照以下提示，写一篇英语短文，谈谈保护树木的必要性。 提示：1.说明树木对人类生存的重要性； 2.谈谈树木日渐减少的现状及原因； 3.保护树木我们应该采取哪些措施。 Trees are important Trees are our friends and they are helpful to us. ___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 试题 第3页（共8页） 试题 第4页（共8页） 试题 第1页（共8页） 试题 第2页（共8页） 学科网（北京）股份有限公司 $ 2025-2026学年七年级下册英语单元自测（广州专用） Unit 3·培优卷 学校:___________班级：___________姓名：___________分数：___________ （时间：100分钟，满分：110分） 一、语言知识运用。(本大题共2大题，共25分) 第一节 语法选择(本大题共10小题，每小题1.5分，共15分) 阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。 Trees are important. They can provide animals with homes. Lots of products, like paper, are made 1 trees. However, they can give 2 these only if they are alive. So people have to do something to keep them 3 . Therefore, people spend much time and money 4 trees. They found that the tree would grow best in a climate (气候) with 5 sunlight and rain, and little sunlight or rain would stop the growth of a tree. We can know the change of climate by reading the pattern of rings in a tree trunk. You should count the rings of a tree trunk 6 the outside to the inside. If 7 tenth ring is far from the other rings, there must 8 lots of sunlight and rain. If the rings are close to each other, then the climate is bad. Study like this is not only for the history of weather, but also for the history of humans. You can find only sand now in one place of New Mexico. However, there were millions of people in the past. They 9 suddenly. Why? A group of scientists studied patterns of dead tree rings there, and they found that people went-away because they destroyed (破坏) all the trees 10 and build houses. 1．A．in B．from C．of D．with 2．A．our B．ours C．us D．we 3．A．healthy B．health C．healthily D．unhealthy 4．A．to make B．making C．to study D．studying 5．A．little B．few C．many D．much 6．A．from B．between C．for D．as 7．A．a B．an C．the D．/ 8．A．am B．is C．are D．be 9．A．are leaving B．left C．will leave D．leave 10．A．burning B．burn C．to burn D．to burning 第二节 完形填空(本大题共10小题，每小题1分，共10分) 通读下面短文，掌握其大意，然后在各题所给的四个选项（A、B、C和D）中选出一个最佳选项。 Plants on earth are important to us because they give us food, wood and oxygen. They also make our earth beautiful. What would the earth be like if there weren’t 11 on it? Try to imagine a picture 12 this. There aren’t green trees or grass, or beautiful 13 of all colours. When spring comes, we can’t smell the sweetness of flowers or see the green of plants. It’s really a 14 world! We enjoy 15 plants everywhere, so we build 16 for them. We also try to find more places for them. But do you really like plants? Do you talk to them? Is it useful to love and 17 plants? Two scientists do an interesting experiment (实验). They plant two seeds of the same kind of plant next to each other and 18 them at the same time. They give one plant (Plant A) love and 19 talk to it. But they do nothing more to the other one (Plant B). Both of them grow bigger and bigger every day. 20 Plant A is always stronger and looks more beautiful than (比) Plant B．So let’s love plants and enjoy living with them. 11．A．animals B．vegetables C．people D．plants 12．A．for B．like C．of D．on 13．A．birds B．flowers C．fish D．cats 14．A．quiet B．dirty C．boring D．cold 15．A．seeing B．selling C．cutting D．taking 16．A．parks B．teahouses C．zoos D．markets 17．A．look for B．wait for C．talk to D．listen to 18．A．catch B．water C．teach D．change 19．A．never B．only C．seldom D．often 20．A．So B．But C．Because D．Or 二、阅读。(本大题共2大题，共35分) 第一节 阅读理解(本大题共15小题，每小题2分，共30分) A A Simple Way to Propagate Plants (繁殖植物) 1. Choose a healthy parent plant. 2. Choose a green and healthy stem. 3. Cut just below a node (the part of a plant stem where one or more leaves grow out). 4. Leave about two leaves. 5. Put the cutting in the water (change the water every few days). 6. Wait for the cutting to grow some roots. 7. Plant the cutting into a pot with some potting mix (盆栽土) and water it. 8. Monitor. 21．What do we do first when we propagate a plant? A．Choose a good pot. B．Choose the best stem. C．Choose the best potting mix. D．Choose a healthy parent plant. 22．Which of the following is TRUE about nodes? A．They will become new leaves at last. B．We should keep them away from water. C．We should leave two nodes on a cutting. D．They are where leaves grow out on the stem. 23．Why should we do step 5? A．To let the roots grow. B．To keep the stem green. C．To let more leaves grow. D．To keep the cutting clean. 24．After planting the cutting, we should ________. A．water it and watch it carefully B．water it every few hours C．cut the small leaves on it D．put more potting mix into the pot 25．In which part of a children’s magazine can we find the material? A．Story Time. B．Do It Yourself. C．Share Your Ideas. D．Today in History. B Once there were two neighbors. One of them was an old teacher, the other was an office worker. Both of them grew the same plants in their gardens. The old teacher gave a little water to his plants and didn’t always care for (照顾) them. His neighbor gave much water to his plants, let them get much sunshine and care for them well. The old teacher’s plants were simple but looked good. The office worker’s plants were much taller and greener. One night, there was heavy rain. The next morning, the office worker’s plants were uprooted (连根拔起), but the old teacher’s plants stood firmly (稳固地). The office worker was surprised and went to the old teacher and asked, “We both grew the same plants together. I looked after my plants better than you did, and I gave them more water. My plants were weak (弱的) and uprooted, but yours weren’t. Why?” The old teacher smiled and said, “You gave your plants more water, so they didn’t need to work for it. I gave them a little water, so their roots grew deeper (更深) to get more water. It made them stronger.” 26．How did the old teacher care for the plants? A．He watered his plants well. B．He took good care of his plants. C．He didn’t water his plants. D．He gave his plants a little water. 27．What happened to the office worker’s plants after heavy rain? A．They were uprooted. B．They stood firmly. C．They became greener. D．They looked good. 28．What can we know from the passage? A．The old teacher was very good at planting. B．The office worker was the old teacher’s student before. C．The old teacher didn’t like working with the office worker. D．The office worker’s plants were different from the old teacher’s plants. 29．What does the underlined word “it” in Paragraph 4 refer to (指代)? A．The sunshine. B．The root. C．The water. D．The air. 30．What would be the best title for this passage? A．Growing plants is not as easy as it looks B．Too much care can make us become weak C．Heavy rain can make the plants die D．Plants know how to look after themselves C Scientists found plants could “talk”. Lilach Hadany and her team recorded (录音) some plants in different places. Their recordings showed that the plants made some sounds. After the scientists changed their recordings, people could hear plants clicking (咔嗒) clearly. They also found the plants hardly clicked when they had enough water. As their soil (土壤) got drier, they clicked more and more. When the scientists cut off a part of the plants, the plants also clicked more. But the clicking wasn’t the same as when the plants needed water. The plants made more sounds when they felt bad. Because of these findings, the scientists thought that they can use a plant’s sounds to find out when it needs help, and what problem it is having. Some questions come with the study. One important question is: Do plants make sounds to talk with each other? Other studies showed that plants seem to talk in some ways. If some animals are eating the plants, the plants will send chemicals into the air. Soon, nearby plants start to make other chemicals that don’t taste good to the animals. Maybe the sounds could work in the same way. Another question is: Is anything listening to the plants? Hadany says that she and her team will study if plants or animals will answer the clicking sounds of the plants. The study changed people’s ideas about plants. Hadany says, “Even in a quiet place, there are sounds that we don’t hear, and those sounds have things to tell.” 31．What does the underlined word “hardly” in Paragraph 2 mean? A．sometimes B．Always C．Often D．almost never 32．Which of the following is TRUE according to the passage? A．Plants clicked more when the soil was too dry. B．Plants made no sound when scientists cut them off. C．Plants made sound to talk when animals were eating them. D．People couldn’t hear plants’ sounds because they were too quiet. 33．What will Hadany and her team study next? A．How do the plants make the clicking sounds? B．Do plants make sounds to talk with other plants? C．Will plants or animals answer plants’ clicking sounds? D．What can they do to change people’s ideas about plants? 34．Which one can be the title for the article? A．Plants can “talk”. B．Plants on Earth C．Beautiful music D．The sound of nature 35．We can read this passage from a _________. A．fairy story B．science magazine C．news report D．travel guide 第二节 阅读填空(本大题共5小题，每小题1分，共5分) 阅读短文及文后的A～E选项，选出可以填入各题空白处的最佳选项。 Trees are one of the oldest “citizens (公民)” of our Earth. They keep our air clean, provide us with lots of things and so on. Just like us, trees change a lot as they grow. At the age of 1 to 3, young trees learn how to protect themselves. 36 When trees are 4 years old, they begin to grow very quickly and become strong enough. 37 They grow more slowly and begin to produce flowers and fruit. When the tree is 20 to 25 years old, it becomes a real adult. The tree reaches its largest size. 38 It’s also a great place for a tree house or a place for us to read a book. Day by day, trees begin to grow older and older and even die. At this time, they still have their important place in nature. 39 When we are looking at the life of a tree, we learn that each period of life has its own happiness and difficulties. 40 A．The adult tree gives us oxygen and natural beauty. B．At the age of 15, trees become young adults. C．For example, many trees grow thorns to protect themselves. D．Enjoy every minute of the life of the trees and take care of the trees. E．When a tree becomes hollow (空心的) or part of it becomes dead, it provides a home for small animals. 三、项目情境题(读写综合)。(本大题共2大题，共20分) 第一节 信息匹配(本大题共5小题，每小题2分，共10分) 下面的材料A-F是六种神奇的植物的简介，请根据五位外国留学生的兴趣和需求，推荐最适合他们研究的植物。 A．Its flowers look like flying egrets. What are egrets? They are a kind of bird. Because this plant’s flowers look like flying egrets, people call it the egret flower. It grows in Eastern Asia. B．An interesting plant in North America eats “meat”. When an insect (昆虫) comes near its leaves, the leaves close up tightly until the insect dies. Then, it enjoys its delicious meal. C． When it comes to laughing, this tree is funny. This is because the fruit of this tree has a hole in it. If the wind blows, this amazing tree “laughs”. When people first hear it laughing, they are usually quite surprised and begin to laugh along with the tree. It grows in the middle of Africa. D．This plant grows in the southwest of Africa. Like most plants, it has roots. But it has only two leaves and a stem (茎). Its two leaves continue to grow for its whole life. This plant can live as long as 1500 years, so people call it a living fossil. E. When this tree hurts, a kind of red liquid will come out. It looks like blood. People say it will cry when it hurts. It grows in Western Africa. 41 Mary found a strange plant with only two leaves. She wants to know more about it. 42 Jackie said he saw a bird-like flower. He felt it interesting and wanted to find it out. 43 Candy’s best friend is not happy. She wants to find a way to make her friend laugh. 44 Tony notices that there is a plant. The leaves may close up tightly to get its food. 45 Lucia’ s classmate doesn’t believe trees get hurt sometimes. He wants to show her. 第二节 回答问题(本大题共5小题，每小题2分，共10分) 阅读短文，根据短文来回答下面5个问题。 A team found that plants can make sounds. The team recorded (录制) tomato plants at different times. It showed that the plants made ultrasound (超声波). Humans could only hear them with the help of a computer. As the team studied the sounds, they started to find some interesting facts. Plants made different sounds at different times. They seldom made sounds when they had enough water. But when the soil got dry, they made more sounds. The team also found that plants made sounds when they got hurt. When the team cut a leaf from the plants, the plants also made sounds. But the sounds weren’t the same as when the plants needed water. The team developed a computer AI system (系统). They used it to tell different kinds of sounds. It was able to find the difference between thirsty (口渴的) plants and plants with cuts. Maybe one day we can use these sounds to find out a plant’s problem. The team’s finding is very meaningful. It shows us plants can make sounds, and that can be helpful to farmers. 46．How did the team find that plants can make sounds? 47．What can help humans hear the sounds of plants? 48．When did plants make sounds?（写出文中提到的任意一个方面） 49．What did the team use the computer AI system to do? 50．What do you think of the team’s finding? 四、写作。(本大题共3大题，共30分) 第一节 短文填空(本大题共5小题，每小题1分，共5分) 阅读短文，根据上下文和所给的首字母写出所缺单词。注意使用正确形式，每空限填一词。 Tree Planting Day is a day for planting trees. It’s on March 12th each year in China. On that day, people usually plant small trees. They f 51 dig a hole in the ground and then they put a tree in the hole. A 52 adding some soil, they water the tree. People from different countries also celebrate (庆祝) their own Tree Planting Day. For e 53 , in Australia, National Tree Day falls on the last weekend of July. In Canada, Maple Leaf Day is celebrated during National Forest Week. A tree makes the air c 54 and fresh. And it also provides shade (树荫) for people. Let’s join hands to plant trees and p 55 our environment together! 第二节 语法填空(本大题共5小题，每小题1分，共5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。 Tom’s science teacher asked the class to study plant growth. He spent hours reading online 56 (survey) about sunlight and water. Then, he wrote a report to 57 (description) his experiment step by step. On the 58 (four) day of his project, something strange happened. One plant grew shockingly fast—almost 10 centimeters overnight! Tom checked the plant carefully and talked to 59 (he), “Did the magic work?” His teacher praised his work and said, “This result seems 60 (usual). Let’s share it with the whole class and discuss together!” 第三节 书面表达(本大题共1小题，共20分) 61．树木对人类的生命具有相当重要的价值。树木给人类带来的不仅仅是食物、木材、住房和工作，而更重要的是它们对人类赖以生存的环境有着重大的生态效益。如果人类毁坏树木，那就是毁坏人类自己的家园。请你以“Trees are important”为题目，按照以下提示，写一篇英语短文，谈谈保护树木的必要性。 提示：1.说明树木对人类生存的重要性； 2.谈谈树木日渐减少的现状及原因； 3.保护树木我们应该采取哪些措施。 Trees are important Trees are our friends and they are helpful to us. ___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 原创精品资源学科网独家享有版权，侵权必究！1 1 / 7 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $ 2025-2026学年七年级下册英语单元自测（广州卷专用） Unit 3·培优卷（参考答案） 题号 1 2 3 4 5 6 7 8 9 10 答案 B C A D D A C D B C 题号 11 12 13 14 15 16 17 18 19 20 答案 D B B C A A C B D B 题号 21 22 23 24 25 26 27 28 29 30 答案 D D A A B D A A C B 题号 31 32 33 34 35 36 37 38 39 40 答案 D A C A B C B A E D 题号 41 42 43 44 45 答案 D A C F E 46．The team recorded tomato plants at different times and found that plants made ultrasound. 47．A computer. 48．When the soil got dry./When they got hurt. 49．To tell different kinds of sounds. 50．It is very meaningful and helpful to farmers. 51．first/irst 52．After/fter 53．example/xample 54．clean/lean 55．protect/rotect 56．surveys 57．describe 58．fourth 59．himself 60．unusual 61．参考范文 Trees are important Trees are our friends and they are helpful to us. Trees provide us with a lot of useful things, such as fruits, wood, and even jobs. And they are very helpful to protect our living environment. People and animals depend on trees a lot. However, trees are getting fewer and fewer these days. People cut down a great number of trees for money and they don’t plant trees. What’s worse, some forests are losing because of wildfires. What a pity. Therefore, it is time to do something to protect trees. Firstly, we should call on people not to cut down so many trees and some laws should be carried out to stop people from cutting down trees. Secondly, we can hold some activities to plant trees on some special days, such as the Tree Planting Day. Thirdly, we should not drop any drink bottles or cigarettes in the wild, which may cause forest fires. I hope everyone can protect trees. In fact, protecting trees means protecting ourselves. 原创精品资源学科网独家享有版权，侵权必究！1 学科网（北京）股份有限公司1 / 2 学科网（北京）股份有限公司 $