Unit 5 课时3 Section A Grammar Focus（分层作业）英语新教材人教版九年级上册

Unit 5 Power of Ideas 课时3 Section A Grammar Focus 分层作业 A组 巩固过关 C组 思维拔高 B组 能力进阶 拓展 链接中考 ( 词汇 connect v. 连接 introduce v. 引入；介绍 press v. 按下，按压 believe v. 相信；认为 complete v. 完成 challenge n. 挑战 create v. 创造 allow v. 允许 increase v. 增加；增长 句型 1. A mini‑camera is connected to the front of the glasses. 一台微型相机被连接在眼镜的前端。 2. Toys, chairs, tables, and even houses can all be made by the 3D printer. 玩具、椅子、桌子甚至房屋都可以由3D打印机制造。 3. A radio message was sent across the Atlantic Ocean for the first time in 1901. 一则无线电讯息于1901年首次跨越大西洋发送成功。 4. It is believed that the world’s oldest wheel was found in Eastern Europe. 人们认为世界上最古老的轮子出土于东欧。 ) 一、单词默写 1. ________________________ v. 连接 2. ________________________ v. 引入；介绍 3. ________________________ v. 按下，按压 4. ________________________ v. 相信；认为 5. ________________________ v. 完成 6. ________________________ n. 挑战 7. ________________________ v. 创造 8. ________________________ v. 允许 9. ________________________ v. 增加；增长 二、词组默写 1. ________________________ 被连接到…… 2. ________________________ 第一次 3. ________________________ 人们相信；据认为 4. ________________________ 有助于做某事 三、根据汉语提示完成句子 1. 电话是在1876年由亚历山大·贝尔发明的。 The telephone ________________________ by Alexander Bell in 1876. 2. 世界各地的人们通过互联网互相联系。 People all over the world ________________________ to each other through the internet. 3. “机器人”这个单词于1920年首次在一部戏剧中被提出。 The word “robot” ________________________ for the first time in a play in 1920. 4. 人们认为最古老的轮子是在东欧发现的。 It is believed that the world’s oldest wheel ________________________ in Eastern Europe. 5. 这些经验将帮助改善其他地区的交通。 The experience will help ________________________ transport in other places. 一、语法填空。 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。把答案写在答题卡的横线上 Do you use an envelope (信封) these days? It 1 (design) to protect letters. But do you know when and where the envelope first 2 (appear)? The history of envelopes is probably 3 (long) than you think. In ancient China, it was used 4 (protect) royal messages. However, the early envelope was nothing like what we use today. It was made 5 clay and looked like a ball. To read the message, one had to break the “envelope”. The 6 (one) paper envelope appeared around 200 BC． It was also invented by the Chinese. However, at the beginning, people used it only to send money to each other as gifts. It was not until around the seventh century that it was used for 7 (send) messages. The envelope was made completely by hand, and it was very expensive. In the 19th century, printing methods improved 8 (great). In 1853, an American 9 (invent) Russell Hawes, invented an envelope maker. The machine could produce about 12,500 envelopes every day. With these improvements, the cost of envelopes went down. Today, e-mails have become more popular than handwritten letters. 10 , billions of envelopes are still used around the world every year. They are still part of modern life. 二、选词填空。 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。每空限一词，每词限用一次。 difficult   by   year   perform   wide   also   robot   develop   but   impress 2026 CCTV Spring Festival Gala became one of the most popular programs this year. When you watch the gala, you must be 1 by a wonderful show called Wu BOT. In the show, humanoid robots performed traditional Chinese kung fu with young martial artists (武术家). These robots were developed 2 Unitree Technology, a top Chinese robot company. The Unitree G1 robots can do 3 movements, such as drunken boxing and nunchucks. They 4 on stage with students from Tagou Martial Arts School. Thanks to high-precision (高精度) control and stable motion (动作稳定) design, the 5 move smoothly and work well with humans. The robots have made great progress in just one 6 . In the 2025 gala, they could only do simple group dances. 7 this year, they could complete difficult and complex (复杂的) kung fu moves easily. This shows China’s robot control technology is 8 rapidly. Wu BOT is not just a fun performance. It mixes traditional culture and modern technology in a creative way. It 9 shows the world the rapid rise of China’s humanoid robots. In the future, such robots will be 10 used in education, public services and daily life. It tells us: Tradition keeps our heart warm, and technology makes our future bright. 一、完形填空 阅读下面短文，从每题所给的A、B、C、D四个选项中选出最佳选项。 Are you interested in making new things? Inventions always play an important role in our life. They make our life more 1 and much easier than before. Recently, a university project has helped two young women 2 a great idea for a difficult problem. Julia and Jessica are students at Harvard University. One day, their teacher said, “I want you to solve a world problem about the energy source (能源). Who can take on this 3 ?” Julia and Jessica wanted to take that challenge. So, they answered, “We decided to accept the difficult task.” Before they began, they first studied many different 4 with few energy sources. They found that children in these countries all like playing 5 , especially soccer. After 6 this observation (观察结果), Julia and Jessica decided to create a new energy source that could have something to do with soccer. They spent six months working with their friends to make a soccer ball with a battery (电池) in it. It took them a long time, but it 7 turned out to be a big success. They knew the soccer ball was exactly 8 they wanted. They named it the SOCCKET and showed it to the users. When the players 9 the ball, the battery inside got the energy from the ball’s movement. After the game, the players used it to make their smartphones 10 . It is fantastic that a simple project can make our lives better! 1．A．boring B．colorful C．difficult D．careful 2．A．come up with B．run out of C．look forward to D．keep away from 3．A．article B．project C．topic D．discussion 4．A．lands B．towns C．cities D．countries 5．A．soccer B．energy C．sports D．source 6．A．planning B．doubting C．noticing D．causing 7．A．hardly B．easily C．quickly D．finally 8．A．what B．where C．how D．why 9．A．broke B．kicked C．lost D．bought 10．A．move B．use C．work D．repair 二、阅读理解。 Chen Yuxuan, a 16-year-old student from Shenzhen Middle School, has won the top prize at the International Youth Science Competition for his invention “Smart Plant Box”. His invention helps plants grow better in cities using solar power and AI technology. Chen’s invention can offer water and nutrients (营养物) to plants on its own based on their needs. It uses special tools to check soil conditions and a small computer to analyze the data (分析数据). The box costs about 500 yuan to make but can increase plant growth by 40%. “I want to help make cities greener,” Chen said. “Many people live in buildings without gardens, but everyone can grow plants with this box.” The young inventor spent two years developing his project. He failed over 20 times before succeeding. His science teacher, Mr. Zhang, said, “Chen doesn’t stop easily when facing problems. He always tries again and often works in the lab until very late to make his invention better.” Besides, Chen’s parents backed his research by turning their balcony into a testing area. Over 1,000 students from 50 countries joined the competition. Chen even won international attention. The judges (评委) spoke highly of Chen’s invention, “It can be widely used in daily life and it is environmentally friendly.” Chen plans to improve his invention and hopes to study environmental science at university. “I believe technology can help solve environmental problems,” he told reporters. 1．What is the main purpose of Chen Yuxuan’s invention? A．To make more friends. B．To help plants grow better in cities. C．To complete a school project. D．To sell it and make money. 2．How does the invention work? A．By keeping plants away from insects. B．By asking people to water plants. C．By moving plants to good soil. D．By providing what plants need. 3．The underlined word “backed” in Paragraph 3 probably means “________”. A．supported B．remembered C．stopped D．damaged 4．What is the best title for this passage? A．The Importance of Planting in Cities B．How to Use AI Technology at Home C．A Young Inventor and His Green Dream D．The International Youth Science Competition （2026·甘肃天水·中考真题）Teen Inventors Build A Robot To Replant Burned Forests Like many countries, Portugal has been experiencing increasingly hotter, drier weather. This has caused many big wildfires. Since 2000, the country has lost about half of its forest because of these big fires. More than 60% of these areas are dangerous, making replanting difficult. Two university students have come up with a creative solution—a tree-planting robot called Trovador. Marta Bernardino and Sebastião Mendonça, grew up near Portugal’s capital, Lisbon. They spent much of their childhood exploring the nearby woods. Sad to see them burned by fire again and again, they decided to act. In 2023, they began building Trovador, a tree-planting robot. The first robot, made from recycled parts and costing $17, could plant young trees 28% faster than humans, and 90% of the young trees survived. Their work quickly got international praise. In 2024, they received $10,000 to improve Trovador. Trovador now is a four-legged, AI-powered robot. It uses cameras to find its way across difficult ground. It can work up to 3 hours on one full power and plant up to 200 young trees per hour. It is expected to be ready for work by the end of 2026. Once ready, Trovador will provide more services to help plant more trees. Workers will use an app to choose planting areas, and the robot will do the rest. Marta and Sebastiāo hope it will help bring Portugal’s forests back. 阅读以上材料，回答下列各小题。 1．Why is it difficult to replant trees in Portugal? A．Because the weather is getting hotter and wetter. B．Because much of the burned land is dangerous. C．Because the country has lost about half of its forest cover. D．Because there are too many big wildfires happening since 2000. 2．What are Marta Bernardino and Sebastião Mendonça? A．Scientists. B．Students. C．Firefighters. D．Explorers. 3．What do we know about the first Trovador robot? A．It was made of new expensive materials. B．It cost as much as 10,000 dollars. C．It worked faster than human planters. D．Half of the young trees that it planted lived. 4．Which of the following is TRUE about Trovador? A．It’s now a snake-shaped machine. B．It can work 4 hours after being powered. C．It has already been widely used across Portugal. D．It will do the planting work in the chosen areas. 5．What is the main purpose of the passage? A．To warn people of serious wildfires in Portugal. B．To introduce a tree-planting robot built by teens. C．To explain how wildfires do harm to local forests. D．To encourage students to take part in creative work. ( 1 / 6 ) 学科网（北京）股份有限公司 $ Unit 5 Power of Ideas 课时3 Section A Grammar Focus 分层作业 A组 巩固过关 C组 思维拔高 B组 能力进阶 拓展 链接中考 ( 词汇 connect v. 连接 introduce v. 引入；介绍 press v. 按下，按压 believe v. 相信；认为 complete v. 完成 challenge n. 挑战 create v. 创造 allow v. 允许 increase v. 增加；增长 句型 1. A mini‑camera is connected to the front of the glasses. 一台微型相机被连接在眼镜的前端。 2. Toys, chairs, tables, and even houses can all be made by the 3D printer. 玩具、椅子、桌子甚至房屋都可以由3D打印机制造。 3. A radio message was sent across the Atlantic Ocean for the first time in 1901. 一则无线电讯息于1901年首次跨越大西洋发送成功。 4. It is believed that the world’s oldest wheel was found in Eastern Europe. 人们认为世界上最古老的轮子出土于东欧。 ) 一、单词默写 1. ________________________ v. 连接 2. ________________________ v. 引入；介绍 3. ________________________ v. 按下，按压 4. ________________________ v. 相信；认为 5. ________________________ v. 完成 6. ________________________ n. 挑战 7. ________________________ v. 创造 8. ________________________ v. 允许 9. ________________________ v. 增加；增长 二、词组默写 1. ________________________ 被连接到…… 2. ________________________ 第一次 3. ________________________ 人们相信；据认为 4. ________________________ 有助于做某事 三、根据汉语提示完成句子 1. 电话是在1876年由亚历山大·贝尔发明的。 The telephone ________________________ by Alexander Bell in 1876. 2. 世界各地的人们通过互联网互相联系。 People all over the world ________________________ to each other through the internet. 3. “机器人”这个单词于1920年首次在一部戏剧中被提出。 The word “robot” ________________________ for the first time in a play in 1920. 4. 人们认为最古老的轮子是在东欧发现的。 It is believed that the world’s oldest wheel ________________________ in Eastern Europe. 5. 这些经验将帮助改善其他地区的交通。 The experience will help ________________________ transport in other places. 参考答案 一、单词默写 1. connect 2. introduce 3. press 4. believe 5. complete 6. challenge 7. create 8. allow 9. increase 二、词组默写 1. be connected to 2. for the first time 3. it is believed that 4. help (to) do sth. 三、根据汉语提示完成句子 1. was invented 2. are connected 3. was introduced 4. was found 5. (to) improve 一、语法填空。 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。把答案写在答题卡的横线上 Do you use an envelope (信封) these days? It 1 (design) to protect letters. But do you know when and where the envelope first 2 (appear)? The history of envelopes is probably 3 (long) than you think. In ancient China, it was used 4 (protect) royal messages. However, the early envelope was nothing like what we use today. It was made 5 clay and looked like a ball. To read the message, one had to break the “envelope”. The 6 (one) paper envelope appeared around 200 BC． It was also invented by the Chinese. However, at the beginning, people used it only to send money to each other as gifts. It was not until around the seventh century that it was used for 7 (send) messages. The envelope was made completely by hand, and it was very expensive. In the 19th century, printing methods improved 8 (great). In 1853, an American 9 (invent) Russell Hawes, invented an envelope maker. The machine could produce about 12,500 envelopes every day. With these improvements, the cost of envelopes went down. Today, e-mails have become more popular than handwritten letters. 10 , billions of envelopes are still used around the world every year. They are still part of modern life. 【答案】 1．is designed 2．appeared 3．longer 4．to protect 5．of 6．first 7．sending 8．greatly 9．inventor 10．However 【导语】本文主要介绍了信封的起源、发展以及在现代生活中的使用情况。 1．句意：它是用来保护信件的。主语It与动词design之间是被动关系，句子是一般现在时，所以此处用一般现在时的被动语态is designed。故填is designed。 2．句意：但是你知道信封最早是在何时何地出现的吗？根据语境可知，信封的出现是过去发生的事情，句子用一般过去时，动词用过去式appeared。故填appeared。 3．句意：信封的历史可能比你想象的要长。根据than可知，此处用形容词long的比较级longer。故填longer。 4．句意：在古代中国，它被用来保护皇家消息。be used to do sth“被用来做某事”，所以空处用动词不定式to protect。故填to protect。 5．句意：它是用粘土做的，看起来像一个球。be made of“由……制成”，固定短语，故此处用介词of。故填of。 6．句意：第一个纸质信封出现在公元前200年左右。根据“paper envelope”可知，此处指第一个纸质信封，用序数词first表示“第一”。故填first。 7．句意：直到大约7世纪，它才被用来发送消息。for是介词，后接动名词sending作宾语。故填sending。 8．句意：在19世纪，印刷方法有了很大的改进。修饰动词improved用副词greatly“大大地”。故填greatly。 9．句意：1853年，美国发明家Russell Hawes发明了一种信封制造机。根据“Russell Hawes”可知，此处指一个人，用名词inventor“发明家”，由an可知，用其单数形式。故填inventor。 10．句意：然而，每年仍有数十亿个信封在世界各地使用。根据“e-mails have become more popular than handwritten letters...billions of envelopes are still used around the world every year”可知，前后两句是转折关系，且空后有逗号，用however“然而”表示转折，句首首字母大写。故填However。 二、选词填空。 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。每空限一词，每词限用一次。 difficult   by   year   perform   wide   also   robot   develop   but   impress 2026 CCTV Spring Festival Gala became one of the most popular programs this year. When you watch the gala, you must be 1 by a wonderful show called Wu BOT. In the show, humanoid robots performed traditional Chinese kung fu with young martial artists (武术家). These robots were developed 2 Unitree Technology, a top Chinese robot company. The Unitree G1 robots can do 3 movements, such as drunken boxing and nunchucks. They 4 on stage with students from Tagou Martial Arts School. Thanks to high-precision (高精度) control and stable motion (动作稳定) design, the 5 move smoothly and work well with humans. The robots have made great progress in just one 6 . In the 2025 gala, they could only do simple group dances. 7 this year, they could complete difficult and complex (复杂的) kung fu moves easily. This shows China’s robot control technology is 8 rapidly. Wu BOT is not just a fun performance. It mixes traditional culture and modern technology in a creative way. It 9 shows the world the rapid rise of China’s humanoid robots. In the future, such robots will be 10 used in education, public services and daily life. It tells us: Tradition keeps our heart warm, and technology makes our future bright. 【答案】 1．impressed 2．by 3．difficult 4．performed 5．robots 6．year 7．But 8．developing 9．also 10．widely 【导语】本文介绍了2026年央视春晚中宇树科技研发的人形机器人与武术家合作表演功夫的节目Wu BOT，展现了中国机器人技术的快速发展及其未来应用前景。 1．句意：当你观看晚会时，你一定会被一个叫Wu BOT的精彩节目留下深刻印象。空格前有be动词，后有介词by，可知此处构成被动语态（be impressed by...），故填入impress的过去分词impressed。 2．句意：这些机器人是由中国顶尖机器人公司宇树科技研发的。在被动语态中，引出动作的执行者需要用介词by，意为“被，由”。 3．句意：宇树G1机器人能做困难的动作，如醉拳和双截棍。空格后是名词“movements”（动作），需要形容词修饰。结合后文提到的醉拳等复杂武术，填入difficult（困难的）符合语境。 4．句意：它们和塔沟武校的学生们一起在舞台上表演。句子缺少谓语动词，且描述的是春晚上已经发生的动作，应用一般过去时，故填入perform的过去式performed。 5．句意：多亏了高精度控制和动作稳定设计，这些机器人移动平稳，能与人类很好地合作。空格处作主语，且后面的谓语动词“move”和“work”均为复数形式，故填入robot的复数形式robots。 6．句意：机器人在短短一年内取得了巨大的进步。空格前有基数词“one”修饰，需用名词单数。结合后文对比2025年和今年（2026年），可知是指“一年”的时间，填入year。 7．句意：在2025年的晚会上，它们只能做简单的群舞。但是今年，它们可以轻松完成困难复杂的功夫动作。前后两句句意发生转折，故填入but，位于句首首字母需大写，即But。 8．句意：这表明中国的机器人控制技术正在迅速发展。空格前有助动词“is”，表示现阶段正在发生的状态，应用现在进行时，故填入develop的现在分词developing。 9．句意：它也向世界展示了中国人形机器人的快速崛起。前文提到它融合了文化和科技，此处进一步补充说明它的另一层意义，表示“也”，填入also。 10．句意：在未来，这类机器人将被广泛应用于教育、公共服务和日常生活中。空格处修饰动词“used”，需要用副词形式。wide的副词为widely，be widely used为固定搭配，意为“被广泛使用”。 一、完形填空 阅读下面短文，从每题所给的A、B、C、D四个选项中选出最佳选项。 Are you interested in making new things? Inventions always play an important role in our life. They make our life more 1 and much easier than before. Recently, a university project has helped two young women 2 a great idea for a difficult problem. Julia and Jessica are students at Harvard University. One day, their teacher said, “I want you to solve a world problem about the energy source (能源). Who can take on this 3 ?” Julia and Jessica wanted to take that challenge. So, they answered, “We decided to accept the difficult task.” Before they began, they first studied many different 4 with few energy sources. They found that children in these countries all like playing 5 , especially soccer. After 6 this observation (观察结果), Julia and Jessica decided to create a new energy source that could have something to do with soccer. They spent six months working with their friends to make a soccer ball with a battery (电池) in it. It took them a long time, but it 7 turned out to be a big success. They knew the soccer ball was exactly 8 they wanted. They named it the SOCCKET and showed it to the users. When the players 9 the ball, the battery inside got the energy from the ball’s movement. After the game, the players used it to make their smartphones 10 . It is fantastic that a simple project can make our lives better! 1．A．boring B．colorful C．difficult D．careful 2．A．come up with B．run out of C．look forward to D．keep away from 3．A．article B．project C．topic D．discussion 4．A．lands B．towns C．cities D．countries 5．A．soccer B．energy C．sports D．source 6．A．planning B．doubting C．noticing D．causing 7．A．hardly B．easily C．quickly D．finally 8．A．what B．where C．how D．why 9．A．broke B．kicked C．lost D．bought 10．A．move B．use C．work D．repair 【答案】 1．B 2．A 3．B 4．D 5．C 6．C 7．D 8．A 9．B 10．C 【导语】本文主要讲述了哈佛两位女生发明足球电池，通过踢球产生能量给手机充电，解决能源问题，让生活更美好。 1．句意：发明让我们的生活比以前更多彩、更便捷。 发明改善生活，和easier“更便捷”并列，需要褒义形容词，应填colorful“多彩的”。boring“无聊的”、difficult“困难的”、careful“小心的”都不符合语境。 2．句意：最近，一个大学项目帮助两名年轻女性针对一个难题想出了一个很棒的点子。 固定搭配come up with意为“想出（主意、办法）”，符合“想出好点子”的搭配和语境。run out of“用完，耗尽”、look forward to“期待”、keep away from“远离”都无法和“a great idea”搭配，语义不通。 3．句意：谁愿意承担这个项目？ 前文点明这是大学的项目任务，老师布置了解决能源问题的任务，应填project“项目”。article“文章”、topic“话题”、discussion“讨论”都不符合“需要学生承接完成的任务”这一语义。 4．句意：开始研究之前，他们首先调研了许多不同的能源匮乏的国家。 后文明确提到“children in these countries”，前后文呼应，只有countries“国家”符合语境。lands“土地，陆地”、towns“城镇”、cities“城市”都和后文指代不符，语义不通。 5．句意：他们发现这些国家的孩子都喜欢做运动，尤其是足球。 后半句用“especially soccer”举例，说明此处总说孩子们喜欢运动，应填sports。soccer“足球”和后文“especially soccer”语义重复，energy“能源”、source“来源”语义完全不通。 6．句意：在注意到这个观察结果之后，Julia和Jessica决定研发一种和足球相关的新型能源。 前文提到他们调研时发现了孩子爱运动、爱踢足球这个现象，应填noticing“注意到”。planning“计划”、doubting“怀疑”、causing“导致”都不符合语义。 7．句意：这花费了他们很长时间，但最终结果证明大获成功。 前文提到研发花了六个月时间，经历漫长过程后最终成功，应填finally。hardly“几乎不”语义相反，easily“容易地”、quickly“快速地”和前文“It took them a long time”矛盾，排除。 8．句意：他们知道这个发电足球正是他们想要的成果。 此处是表语从句，从句中wanted缺宾语，指代“想要的事物”，用连接代词what。where“哪里”，作地点状语；how“如何”，作方式状语；why“为什么”，作原因状语；都不能在从句中作宾语。 9．句意：当球员踢球时，球内部的电池可以从球的运动中获取能量。 这个发电装置嵌在足球内，球员踢球让球运动才能产生能量，应填kicked“踢”。broke“打破”、lost“丢失”、bought“购买”语义不通。 10．句意：比赛结束后，球员可以用这个储存的电能让智能手机正常运转。 发电足球的作用是储存电能，给手机供电让它正常工作，应填work“运转，工作”。move“移动”语义不符，use“使用”、repair“修理”不符合“电池供电让手机工作”的逻辑。             二、阅读理解。 Chen Yuxuan, a 16-year-old student from Shenzhen Middle School, has won the top prize at the International Youth Science Competition for his invention “Smart Plant Box”. His invention helps plants grow better in cities using solar power and AI technology. Chen’s invention can offer water and nutrients (营养物) to plants on its own based on their needs. It uses special tools to check soil conditions and a small computer to analyze the data (分析数据). The box costs about 500 yuan to make but can increase plant growth by 40%. “I want to help make cities greener,” Chen said. “Many people live in buildings without gardens, but everyone can grow plants with this box.” The young inventor spent two years developing his project. He failed over 20 times before succeeding. His science teacher, Mr. Zhang, said, “Chen doesn’t stop easily when facing problems. He always tries again and often works in the lab until very late to make his invention better.” Besides, Chen’s parents backed his research by turning their balcony into a testing area. Over 1,000 students from 50 countries joined the competition. Chen even won international attention. The judges (评委) spoke highly of Chen’s invention, “It can be widely used in daily life and it is environmentally friendly.” Chen plans to improve his invention and hopes to study environmental science at university. “I believe technology can help solve environmental problems,” he told reporters. 1．What is the main purpose of Chen Yuxuan’s invention? A．To make more friends. B．To help plants grow better in cities. C．To complete a school project. D．To sell it and make money. 2．How does the invention work? A．By keeping plants away from insects. B．By asking people to water plants. C．By moving plants to good soil. D．By providing what plants need. 3．The underlined word “backed” in Paragraph 3 probably means “________”. A．supported B．remembered C．stopped D．damaged 4．What is the best title for this passage? A．The Importance of Planting in Cities B．How to Use AI Technology at Home C．A Young Inventor and His Green Dream D．The International Youth Science Competition 【答案】1．B 2．D 3．A 4．C 【导语】本文介绍了深圳中学生陈宇轩发明“智能植物箱”并获得国际青少年科学竞赛最高奖的故事。 1．第一段指出“His invention helps plants grow better in cities”，说明主要目的是帮助城市植物更好地生长。 2．第二段指出“Chen’s invention can offer water and nutrients to plants on its own based on their needs”，说明它根据植物需要提供所需物质。 3．第三段中“backed”所在句为：“Chen’s parents backed his research”，结合后文“by turning their balcony into a testing area”，说明父母通过将阳台变为测试区来“支持”他的研究，因此“backed”意为“supported”。 4．全文围绕陈宇轩发明“智能植物箱”及其绿色梦想展开，因此“A Young Inventor and His Green Dream”是最佳标题。 （2026·甘肃天水·中考真题）Teen Inventors Build A Robot To Replant Burned Forests Like many countries, Portugal has been experiencing increasingly hotter, drier weather. This has caused many big wildfires. Since 2000, the country has lost about half of its forest because of these big fires. More than 60% of these areas are dangerous, making replanting difficult. Two university students have come up with a creative solution—a tree-planting robot called Trovador. Marta Bernardino and Sebastião Mendonça, grew up near Portugal’s capital, Lisbon. They spent much of their childhood exploring the nearby woods. Sad to see them burned by fire again and again, they decided to act. In 2023, they began building Trovador, a tree-planting robot. The first robot, made from recycled parts and costing $17, could plant young trees 28% faster than humans, and 90% of the young trees survived. Their work quickly got international praise. In 2024, they received $10,000 to improve Trovador. Trovador now is a four-legged, AI-powered robot. It uses cameras to find its way across difficult ground. It can work up to 3 hours on one full power and plant up to 200 young trees per hour. It is expected to be ready for work by the end of 2026. Once ready, Trovador will provide more services to help plant more trees. Workers will use an app to choose planting areas, and the robot will do the rest. Marta and Sebastiāo hope it will help bring Portugal’s forests back. 阅读以上材料，回答下列各小题。 1．Why is it difficult to replant trees in Portugal? A．Because the weather is getting hotter and wetter. B．Because much of the burned land is dangerous. C．Because the country has lost about half of its forest cover. D．Because there are too many big wildfires happening since 2000. 2．What are Marta Bernardino and Sebastião Mendonça? A．Scientists. B．Students. C．Firefighters. D．Explorers. 3．What do we know about the first Trovador robot? A．It was made of new expensive materials. B．It cost as much as 10,000 dollars. C．It worked faster than human planters. D．Half of the young trees that it planted lived. 4．Which of the following is TRUE about Trovador? A．It’s now a snake-shaped machine. B．It can work 4 hours after being powered. C．It has already been widely used across Portugal. D．It will do the planting work in the chosen areas. 5．What is the main purpose of the passage? A．To warn people of serious wildfires in Portugal. B．To introduce a tree-planting robot built by teens. C．To explain how wildfires do harm to local forests. D．To encourage students to take part in creative work. 【答案】1．B 2．B 3．C 4．D 5．B 【导语】本文介绍葡萄牙频发山火，过火区域环境危险，人工复种难度大。两名大学生研发植树机器人Trovador，初代机器人效果出色，改良后的AI四足机器人效率更高，有望在2026年底投入山林修复工作。 1．原文第一段“More than 60% of these areas are dangerous, making replanting difficult.”，葡萄牙火灾过后超六成土地环境危险，因此重新种树十分困难。 2．原文第一段“Two university students have come up with a creative solution—a tree-planting robot called Trovador.”，Marta和Sebastiāo是两名大学生。 3．原文第三段“The first robot, made from recycled parts and costing $17, could plant young trees 28% faster than humans, and 90% of the young trees survived.”，初代机器人由回收零件制成，造价仅17美元，栽种幼苗的速度比人工快28%，且种下的幼苗存活率达90%。 4．原文第六段“Workers will use an app to choose planting areas, and the robot will do the rest.”，工作人员会通过一款应用选定种植区域，剩下的种植工作都由机器人完成。 5．全文围绕两名青年学生研发植树机器人Trovador展开，介绍研发背景、初代性能、改良后的功能与使用前景，因此文章核心是介绍这款青年发明的植树机器人。 ( 1 / 6 ) 学科网（北京）股份有限公司 $