Unit 5 Power of Ideas（单元自测卷·安徽专用）英语新教材人教版九年级上册

**基本信息** 本单元卷以“Power of Ideas”为主题，通过雨衣发明、VR手套、无人机发展等科技与创新素材，融合语言能力与思维品质培养，适配九年级上册Unit 5单元复习。 **题型特征** |题型|题量/分值|知识覆盖|命题特色| |----|-----------|----------|----------| |单项选择|10题/10分|核心词汇（如rapid, suitable）、语法（被动语态等）|结合白色污染、在线支付等生活情境，巩固基础语言能力| |完形填空|20题/20分|叙事语篇理解、词汇运用（如produce, powered）|以雨衣发明、Volonaut Airbike等科技故事为载体，培养逻辑思维| |阅读理解|20题/40分|科技（无人机发展）、环保（海洋塑料清理）、发明史（彩色电视）|选用VR手套、学生发明想法等时代性素材，提升信息获取与批判思维| |书面表达|1题/20分|项目式学习输出（设计飞行自行车）|要求介绍特点、困难解决及收获，综合考查语言表达与问题解决能力|

………………○………………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：______________________ 2026-2027学年九年级上册英语单元自测·安徽专用 Unit 5 Power of Ideas 学校:___________班级：___________姓名：___________分数：___________ （时间：90分钟，满分：100分） 一、单项选择。(本大题共10小题，每小题1分，共10分) 从每小题所给的A、B、C、D四个选项中选出一个可以填入空白处的最佳选项。 1．We will ________ lots of white pollution if we keep using plastic bags while shopping. A．melt B．support C．produce D．discuss 2．With the ________ growth of online payment, more people choose to use digital wallets. A．mobile B．foreign C．rapid D．private 3．— Millie, who do you think would be ______ for playing the lead role of the brave boy? —I think Wang Junkai is the perfect boy for it. A．suitable B．valuable C．responsible D．fashionable 4．— How did you solve the disagreement within the team? — We had a good conversation, and that ________ better cooperation. A．threw away B．led to C．dealt with D．sped up 5．—Do you think the Internet has changed our life? —Sure. It is ________ used in all the fields such as shopping, education, traveling and so on. A．normally B．hardly C．widely D．gradually 6．—Jane and Lisa are sisters, but their faces have different ________. —Yeah, Jane's face is round but Lisa's face is long. A．stones B．heights C．shapes D．sizes 7．The Ganzhou Marathon 2025 ________ on December 7th. More than 18,000 people took part in it. A．was holding B．is holding C．is held D．was held 8．With the hard-working workers, I'm sure we will ________ the project on time. A．afford B．complete C．protect D．change 9．You can ask your classmates for help. ________ of your teachers is free as all of them are having a meeting. A．Both B．Neither C．None D．Either 10．A baby's first month birthday is a special event in China and ________ with a special party. A．is celebrating B．was celebrating C．is celebrated D．celebrates 二、完形填空。(本大题共20小题，每小题1分，共20分) 阅读下列短文，从每小题所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项。 A Many inventions were the results of accidents. Today we're going to learn about a 1 invention—the raincoat. Do you know 2 it was invented? It has been more than two thousand years since we began to use an umbrella. However, people often felt it not convenient to hold an umbrella 3 walking. Then the raincoat was invented. It was said that the raincoat was invented by Macintosh in 1823. Macintosh was a(n) 4 in an eraser factory in Scotland. One day, he poured the rubber liquid (橡胶液体) over his coat carelessly when making erasers. He was too 5 to clean it and went back home with the dirty coat. On the way home, it rained heavily. Macintosh didn't have an umbrella, so he had to run home 6 . When he got home, he 7 the wet clothes. To his surprise, the area of the coat with rubber over wasn't wet. "Why not make a rubber raincoat?" Macintosh told 8 . The next day, he brushed the rubber liquid all over his coat. He wore the "rubber coat" on rainy days and took a walk outside to test if it could really keep 9 the rain. Surprisingly, the clothes inside the" rubber coat" were not wet at all. So the raincoat was invented in this way. The rubber raincoats soon 10 in the market. Year after year, people tried to improve the raincoats. Today raincoats are widely used in our daily life. 1．A．beautiful B．colorful C．useful D．careful 2．A．what B．how C．who D．where 3．A．after B．until C．while D．before 4．A．scientist B．worker C．astronaut D．pilot 5．A．clever B．relaxed C．tall D．busy 6．A．suddenly B．quietly C．quickly D．slowly 7．A．put off B．put on C．took off D．picked up 8．A．myself B．himself C．herself D．yourself 9．A．on B．with C．off D．in 10．A．found B．produced C．appeared D．made B From the earliest days, humans have dreamed of flying. Over the last century, great 1 has been made in the world of air transport (航空运输). But few inventions are 2 for personal use. Now, we may soon have a new choice—the Volonaut Airbike, a flying machine that can turn common people into 3 and let them fly like in science-fiction movies. 4 by Tomasz Patan from Poland, the Volonaut Airbike is described as a "superbike for the skies". It carries one person and can reach a speed of 200 kilometers per hour. It can 5 and land straightly. It even can stay in the air. The Volonaut Airbike is 6 , it has no cockpit, propellers or wings (座舱，螺旋桨，翼部). It is 7 by jet propulsion (喷气推进). The pilot sits on a seat like on a motorbike and rises into the air, controlling the bike through a special helmet. A flight computer turns body movements into real-time flight changes. Because special materials are 8 , the superbike is seven times lighter than a common motorbike. Thanks to its small size and weight, the Volonaut Airbike can 9 reach places that were hard to get before. This opens new 10 for transportation in crowded cities, faraway areas, or even disaster areas. We're not sure when the flying machine will be on sale, but the inventor says it will go to market in the "near future." Let's wait and see! 1．A．rule B．tradition C．progress D．picture 2．A．printed B．protected C．mailed D．designed 3．A．pilots B．policemen C．patients D．dentists 4．A．Bought B．Checked C．Developed D．Moved 5．A．give up B．take off C．throw away D．put down 6．A．pretty B．lucky C．cheap D．special 7．A．refused B．dropped C．powered D．repaired 8．A．lost B．used C．sold D．wasted 9．A．politely B．loudly C．strictly D．easily 10．A．chances B．hobbies C．minutes D．groups 三、补全对话。(本大题共5小题，每小题1分，共5分) 根据对话内容，从方框内的选项中选出能填入空白处的最佳选项，其中有两个为多余选项。 A: Hi, Lucy! I heard you joined the school invention club. 1 B: Yes. We are going to create something useful for students. A: 2 B．We plan to make a smart pencil box. A: A smart pencil box? 3 B: It can help students keep their school things in order and remind them if they forget something. A: Wow! How does it work? B: It has a small screen and a voice system. 4 A: That's really helpful! I always forget my eraser or ruler. B: Me too. That's why we want to make it. A: 5 B: Maybe in two months. We still need to make it better. A．What is it used for? B．How long will it take to finish? C．What are you going to invent? D．Who helped you with the idea? E．Is that true? F．It can tell you what's missing. G．Why do you like it? 四、阅读理解。(本大题共20小题，每小题2分，共40分) 第一节 阅读下列短文，从每小题所给的A、B、C、D四个选项中选出最佳选项。 A Hello, everyone! Here comes this month's School Brain Game. We're going to talk about what you would like to invent (发明). Let your imagination run wild and post (发布) your ideas below. —Andrew, Student Union President Students have a lot of homework. They often go to bed late and wake up early for school. I'd like to invent a machine to help you ________ in the morning without waking you up. It would carefully pick you up, take you to the bathroom and brush your teeth. It would get you dressed and set you down at the dining room table. Then it would gently wake you for breakfast. You'd go to school on time while still getting a good night's sleep! —Michelle, from Grade 9 I'd invent a time machine that could take us to any day in history. We would finally be able to answer questions like "What killed all the dinosaurs?" Just think how different life would be if every question about history could be answered. We would know almost everything. And we could visit the past or the future to see how humans have changed. Imagine visiting your ancestors (祖先)! Imagine going to the future to tell people about life in the past! Just think about all that fun! —Troy, from Grade 8 A flying car! You could go anywhere you wanted. It could prevent traffic jams (堵塞) during rush hour. We wouldn't have to build so many highways. There would be more space to plant trees. The air would be cleaner and fresher. My flying car would be powered by solar energy (太阳能). We could save the Earth and all the plants and animals too. —Rebecca, from Grade 7 Share your thoughts... send   cancel 1．Which of the following phrases is the most suitable for the blank ________? A．keep energetic B．get ready C．think twice D．make progress 2．The following picture shows ________ invention (发明). A．Andrew's B．Michelle's C．Troy's D．Rebecca's 3．With Rebecca's invention, there would be ________ in our cities. ①more trees   ②fewer solar panels (电池板)   ③fewer traffic jams   ④more highways A．①② B．②④ C．③④ D．①③ B Guillermo González Camarena, a Mexican inventor, was born in 1917. As a child, he loved building things. He made electric toys when he was young. By age 12, he had built a radio with spare parts. At 13, he began studying engineering. He was interested in a new technology of his time: television. Television works by sending pictures and sound to a screen using electrical signals. The first moving images were sent to TVs in the 1920s. Few people had TVs then, but many knew TV would be an important way to learn about the world. Early televisions had many weak points.. They could only show black-and-white images, not color ones. Because of this, many inventors worked to solve these problems. González Camarena was one of the first with a solution. In 1940, he made a "tri-chromatic" (three-color) device, which used three colors: red, blue, and green. When it was connected to a black-and-white TV, people could see color images. The invention was a huge success. But the device was very expensive to make. He wanted everyone to have color TV, so he kept on working to make it cost less. By the early 1960s, he invented a cheaper way to show color on TV. He called it the "Simplified Bi-color System (SBCS)." It cost much less to produce. Starting in 1965, many SBCS TVs were made and sold in Mexico. González Camarena also believed that TV was important to educate children. His ideas helped create Mexico's first educational TV network, "Telesecundaria," which is still used today. Guillermo González Camarena passed away on April 18, 1965. Today, he is remembered as one of Mexico's greatest inventors. 4．Why did González Camarena invent a tri-chromatic device? A．TVs were not perfect to send sound. B．TVs didn't help educate children then. C．TVs were too expensive for people to own. D．TVs could only show black-and-white images. 5．What was González Camarena's view on television? A．It should help create TV network. B．Rich people should make it cheaper. C．It should be widely used and educational. D．There was no need to improve its technology. 6．What do you think of González Camarena according to the passage? A．A creative and caring inventor. B．A clever and friendly educator. C．A grateful and curious inventor. D．A smart and successful educator. C Nowadays, we can easily make video calls to friends and family. However, we can't give high-fives, shake hands or receive hugs through the screen. Scientists have invented special cool gloves to solve this problem to let you "feel" in virtual reality (VR, 虚拟现实). The gloves have small devices (装置) inside that allow them to move. When you interact (互动) with someone in VR, such as shaking hands or passing an object, the gloves will move in different ways. Then you'll have the sense of touch. It's not only fun but also meaningful. Unlike traditional video calls, this technology lets users move freely around each other and interact with virtual objects, like passing a cup or completing group activities. The idea for this technology came from personal experience. A student on the team hadn't seen his family for five years and missed their hugs. He said, "This isn't just about technology. It's about bringing people closer." These gloves can be very helpful in different situations. In hospitals, they could allow patients and their family members to share a comforting touch across distances (距离). In faraway workplaces and classrooms, they offer a fun way to work together. And for loved ones separated by travel, they bring a deeper sense of closeness. The scientists say these gloves can't do exactly what real hugs do, but they can make online interactions feel warmer. Soon, while playing games in VR, you may be able to truly feel your friends high-five! The team is still working on improving the gloves. Future gloves might make you feel even more real, like letting you "touch" different kinds of material! In a word, bringing the sense of touch into virtual spaces is highly valuable in today's world. 7．What is the main problem the special gloves try to solve? A．Making video calls convenient. B．Allowing people to "feel" in VR. C．Helping people record video calls. D．Increasing the number of VR users. 8．What can we learn from the second paragraph? A．How the special gloves work. B．Where the gloves can be used. C．Why video calls are better than VR. D．When scientists invented the gloves. 9．What is the scientists' attitude towards these gloves according to the last paragraph? A．They think the gloves are only for games. B．They doubt the gloves will be very popular. C．They think the gloves can take the place of real hugs. D．They believe the gloves can make online time warmer. D During the rainy season, Wen's classroom floor was often covered with water from wet umbrellas. The umbrella stand near the door was narrow, so large umbrellas fell out and blocked the way. For invention week, Wen set two goals: keep the floor dry and let students handle umbrellas quickly. His first model used a tall cardboard box with holes cut in the top. It kept umbrellas upright, but water softened the bottom within a day. For the second model, Wen placed the box inside a plastic tray. The floor stayed dry, yet students had difficulty finding their own umbrellas because the handles were too close together. Wen then watched how students entered the room. Most wanted to leave quickly, and few would read a number or use a lock. He changed the design into a low round stand with wide spaces around the edge. Each space had a simple colored shape, so users could remember a red star or a blue circle instead of a number. Water ran through small holes into a removable tray. A three-day test revealed another surprise: the round stand took too much space when all the spaces were filled. Wen cut it into two half-circles and placed them against the wall. He also added rubber feet so the stand would not slide on the wet floor. This version worked well. At the exhibition, Wen showed all four models instead of only the final one. Visitors could see how each failure led to a change in the next idea. His display reminded visitors that a successful invention is often a record of questions, tests and useful mistakes. 10．Why did Wen add a plastic tray? A．To show colored shapes. B．To make the stand taller. C．To hold more umbrellas. D．To collect water. 11．What can we infer from Wen's observation of students? A．A design must fit users' actual habits. B．Every invention needs a computer. C．Colored shapes are harder than numbers. D．A tall stand is always safer. 12．What does "This version" in Paragraph 4 refer to? A．The tall cardboard box. B．The two half-circle stands with rubber feet. C．The round stand before testing. D．The original narrow stand. 13．Which statement best summarizes Wen's design process? A．He copied a costly product and made it cheaper. B．He followed visitors' advice after the exhibition. C．He improved the stand by testing one problem at a time. D．He chose appearance over practical use. E Drones (无人机), also called unmanned aerial vehicles (UAVs), were not always the common tools we see today. Their history is closely connected to military (军事的) use. It is believed that the first drones were developed in the early 20th century for military training. A big step forward happened during World War I when the first drones that could be controlled remotely (远程地) were tested. However, these early drones were very expensive, so it's difficult to produce. The real change began in the 21st century with improvements in technology. Smaller and cheaper sensors (传感器) and GPS systems were invented. This made it possible to produce consumer drones. In 2006, a company called DJI, which was founded in Shenzhen, China, started to develop easy-to-fly drones for the public. These drones were equipped with cameras and could take amazing photos and videos from the sky. Soon, drones were no longer just for the military. They became popular with photographers, farmers, and even delivery (配送) services. Today, drones are widely used around the world. Guangdong Province, especially Shenzhen, is considered a global center for drone making and improving. Drones are used for many purposes. It is clear that this invention has now changed many parts of our work and life. As technology continues to develop, who knows what new uses for drones will be invented in the future. 14．According to Paragraph 2, what helped companies make drones for the public? A．The needs of the military. B．The support from the government. C．The improvements in some technologies. D．The invention of the first camera. 15．What does the underlined word "equipped" in Paragraph 2 probably mean? A．Recalled. B．Provided. C．Nodded. D．Avoided. 16．Which of the following can be inferred (推断) from the passage? A．Drones were very common in the early 20th century. B．DJI was the first company to invent military drones. C．The development of drones in Shenzhen is mentioned to show its local importance. D．Drones are only useful for taking photos and making videos nowadays. 17．What is the best title for the passage? A．The Military Use of Early Drones B．How DJI Became a Famous Company C．The Development and Popularization of Drones D．Drones' Popular Uses in Guangdong Province 第二节 阅读下面短文，并用英语回答问题（请注意每小题的词数要求）。 F One day, Paula Ma was walking along Castle Island's beach. She found there were lots of plastic pieces in the sea and some were too small to pick up. She began to think about how to solve the problem. First, she did a survey. The result showed there were already 150 million tons of plastic in the sea, and that every year there would be another 8 million tons. She realized something must be done. So she decided to invent a robot that could work under water. She tried again and again. At last her ROV (遥控无人潜水器) came out. It could move through water and pick up plastic pieces, especially the small ones. With this ROV, Paula Ma took part in the Broadcom Masters Competition. It was one of the top STEM competitions. It's for young students around the world. This year, more than 5,000 students were interested in the competition, but only a few got the chance. Paula Ma's ROV caught a lot of attention. It had a camera with three different kinds of lights. It could find plastic pieces easily. Dana Yoerger, an expert, said, "The ROV is nicely done for a 12-year-old girl. She's very clever." In fact, Paula Ma is always learning to solve the world's problems and her parents are always supporting her. At the age of five, she began to go to workshops to learn engineering skills. When she was asked about the future plan, she said, "I want to be an engineer because I like building things. I think many problems can be solved with new inventions. Right now, I'm just caring about plastic problems because there is still a long way to go." 18．How many tons of plastic would be in the sea in the next year after Paula Ma did a survey?（不超过3个词） 19．Who was the Broadcom Masters Competition held for?（不超过8个词） 20．What will Paula Ma do in the near future?（不超过8个词） 五、单词拼写。(本大题共5小题，每小题1分，共5分) 根据首字母及汉语提示，完成下列单词的拼写，使句意明确，语言通顺。 1．We tried our best to turn our ideas into r________ (现实). 2．My grandma is good at making c________ (便宜的) but stylish clothes. 3．From his calm look, I s________ (推断) he has already known the good news. 4．As technology develops r________ (迅速地), more and more AI tools will be invented in the future. 5．Matt said he didn't get the book. But I'm c________ (确定的) that I gave it back to him last week. 六、书面表达。(共20分) 假设你是李华，你校英文报社新增了关于项目式学习的专栏，你所在小组刚完成的项目是“设计飞行自行车”，请你代表小组向专栏投稿，介绍你们设计的自行车，项目进行中遇到的困难及解决办法，并分享你的收获。 项目 A flying bike 特点 速度快，环保（使用太阳能solar power） 困难与解决办法 安全性能，选材料（碳纤维carbon fiber） 收获 团队合作重要性，解决问题能力…… 注意： 1. 短文须包含上述要点，可适当增加细节，以使行文连贯； 2. 文中不能出现真实姓名和学校名称； 3. 词数80~100（首句已为你写好，不计入总词数） I am Li Hua, and I’m glad to share our group’s project on designing a flying bike. 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 $ 2026-2027学年九年级上册英语单元自测·安徽专用 Unit 5 Power of Ideas 一、单项选择。 1-5：CCABC 6-10：CDBCC 二、完形填空。 A：1．C 2．B 3．C 4．B 5．D 6．C 7．C 8．B 9．C 10．C B：1．C 2．D 3．A 4．C 5．B 6．D 7．C 8．B 9．D 10．A 三、补全对话。 1．E 2．C 3．A 4．F 5．B 四、阅读理解。 A： 1．B 2．C 3．D B： 4．D 5．C 6．A C： 7．B 8．A 9．D D： 10．D 11．A 12．B 13．C E： 14．C 15．B 16．C 17．C F： 18．158 million tons. 19．Young students around the world./ It's for young students around the world. 20．She will just care about plastic problems. 五、单词拼写。 1．reality/eality 2．cheap/heap 3．suppose/uppose 4．rapidly/apidly 5．certain/ertain 六、书面表达。 例文： I am Li Hua, and I’m glad to share our group’s project on designing a flying bike. Our flying bike has two amazing advantages: it runs fast and is environmentally friendly as it uses solar power. During the design, we faced a big problem—how to ensure its safety. After discussions, we chose carbon fiber as the main material, which is light but strong enough to guarantee safety. This project taught me that teamwork is the most important thing. It also improved our ability to solve these problems. We really hope our design can come true in the future. Yours, Li Hua 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 $ 2026-2027学年九年级上册英语单元自测·安徽专用 Unit 5 Power of Ideas 学校:___________班级：___________姓名：___________分数：___________ （时间：90分钟，满分：100分） 一、单项选择。(本大题共10小题，每小题1分，共10分) 从每小题所给的A、B、C、D四个选项中选出一个可以填入空白处的最佳选项。 1．We will ________ lots of white pollution if we keep using plastic bags while shopping. A．melt B．support C．produce D．discuss 【答案】C 【详解】句意：如果我们购物时继续使用塑料袋，我们将产生大量白色污染。 melt融化；support支持；produce产生；discuss讨论。根据"if we keep using plastic bags while shopping"可知，继续使用塑料袋会导致白色污染的产生，produce符合语境。应填produce。 2．With the ________ growth of online payment, more people choose to use digital wallets. A．mobile B．foreign C．rapid D．private 【答案】C 【详解】句意：随着在线支付的快速增长，更多人选择使用数字钱包。 mobile移动的；foreign外国的；rapid快速的；private私人的。根据"more people choose to use digital wallets"可知，在线支付发展迅速，rapid符合语境。应填rapid。 3．— Millie, who do you think would be ______ for playing the lead role of the brave boy? —I think Wang Junkai is the perfect boy for it. A．suitable B．valuable C．responsible D．fashionable 【答案】A 【详解】句意：——米莉，你认为谁适合扮演这个勇敢男孩的主角呢？——我认为王俊凯是最适合的人选。 考查形容词辨析。suitable合适的；valuable有价值的；responsible负责任的；fashionable时尚的。根据答语"I think Wang Junkai is the perfect boy for it"可知，此处是在询问谁适合扮演这个角色，"suitable"符合语境。故选A。 4．— How did you solve the disagreement within the team? — We had a good conversation, and that ________ better cooperation. A．threw away B．led to C．dealt with D．sped up 【答案】B 【详解】句意：——你们是如何解决团队内部的分歧的？——我们进行了一次愉快的交谈，那导致了更好的合作。 threw away扔掉，led to导致，dealt with处理，sped up加速。根据"We had a good conversation"可知，良好的沟通带来了积极结果，即"导致"了更好的合作。 5．—Do you think the Internet has changed our life? —Sure. It is ________ used in all the fields such as shopping, education, traveling and so on. A．normally B．hardly C．widely D．gradually 【答案】C 【详解】句意：——你认为互联网改变了我们的生活吗？——当然。它被广泛地用于所有领域，例如购物、教育、旅行等等。 normally通常地；hardly几乎不；widely广泛地；gradually逐渐地。根据"Sure"及"used in all the fields"可知互联网应用范围很广，应填widely。 6．—Jane and Lisa are sisters, but their faces have different ________. —Yeah, Jane's face is round but Lisa's face is long. A．stones B．heights C．shapes D．sizes 【答案】C 【详解】句意：——简和丽萨是姐妹，但她们的脸有不同的形状。——是啊，简的脸是圆的，而丽萨的脸是长的。 考查名词辨析。stones石头；heights高度；shapes形状；sizes尺寸。根据"Jane's face is round but Lisa's face is long"可知，此处是指脸的"形状"不同，应用shapes。故选C。 7．The Ganzhou Marathon 2025 ________ on December 7th. More than 18,000 people took part in it. A．was holding B．is holding C．is held D．was held 【答案】D 【详解】句意：2025年赣州马拉松于12月7日被举办。超过18,000人参加了它。 主语"The Ganzhou Marathon 2025"与动词"hold"之间是被动关系，需用被动语态，排除主动语态选项。根据后句谓语"took"及时间状语可知动作发生在过去，需用一般过去时。was held符合一般过去时的被动语态结构。故选D。 8．With the hard-working workers, I'm sure we will ________ the project on time. A．afford B．complete C．protect D．change 【答案】B 【详解】句意：有了努力工作的工人们，我相信我们会按时完成这个项目。 考查动词辨析。afford买得起；complete完成；protect保护；change改变。根据"the project on time"（按时……项目）可知，应是"完成"项目，complete符合语境。故选B。 9．You can ask your classmates for help. ________ of your teachers is free as all of them are having a meeting. A．Both B．Neither C．None D．Either 【答案】C 【详解】句意：你可以求助你的同学。你的老师都没空，因为所有老师都在开会。 考查代词辨析。both两者；neither（两者）无一个；none（三者或以上）无一个；either（两者中）任意一个。根据"of your teachers is free as all of them are having a meeting"可知，所有老师都在开会，所以"没有"老师有空，none符合语境。故选C。 10．A baby's first month birthday is a special event in China and ________ with a special party. A．is celebrating B．was celebrating C．is celebrated D．celebrates 【答案】C 【详解】句意：在中国，婴儿的满月生日是一件特殊的事情，并且会通过一个特殊的聚会来庆祝。 主语"A baby's first month birthday"与动词"celebrate"之间是被动关系，应用被动语态；句子陈述的是客观事实或习俗，应用一般现在时。应填is celebrated。 二、完形填空。(本大题共20小题，每小题1分，共20分) 阅读下列短文，从每小题所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项。 A Many inventions were the results of accidents. Today we're going to learn about a 1 invention—the raincoat. Do you know 2 it was invented? It has been more than two thousand years since we began to use an umbrella. However, people often felt it not convenient to hold an umbrella 3 walking. Then the raincoat was invented. It was said that the raincoat was invented by Macintosh in 1823. Macintosh was a(n) 4 in an eraser factory in Scotland. One day, he poured the rubber liquid (橡胶液体) over his coat carelessly when making erasers. He was too 5 to clean it and went back home with the dirty coat. On the way home, it rained heavily. Macintosh didn't have an umbrella, so he had to run home 6 . When he got home, he 7 the wet clothes. To his surprise, the area of the coat with rubber over wasn't wet. "Why not make a rubber raincoat?" Macintosh told 8 . The next day, he brushed the rubber liquid all over his coat. He wore the "rubber coat" on rainy days and took a walk outside to test if it could really keep 9 the rain. Surprisingly, the clothes inside the" rubber coat" were not wet at all. So the raincoat was invented in this way. The rubber raincoats soon 10 in the market. Year after year, people tried to improve the raincoats. Today raincoats are widely used in our daily life. 1．A．beautiful B．colorful C．useful D．careful 2．A．what B．how C．who D．where 3．A．after B．until C．while D．before 4．A．scientist B．worker C．astronaut D．pilot 5．A．clever B．relaxed C．tall D．busy 6．A．suddenly B．quietly C．quickly D．slowly 7．A．put off B．put on C．took off D．picked up 8．A．myself B．himself C．herself D．yourself 9．A．on B．with C．off D．in 10．A．found B．produced C．appeared D．made 【答案】 1．C 2．B 3．C 4．B 5．D 6．C 7．C 8．B 9．C 10．C 【导语】本文介绍了雨衣的发明过程，讲述了麦金托什因一次意外发现橡胶防水特性并发明雨衣的故事。 【详解】 1．句意：今天我们要了解一种有用的发明——雨衣。 根据下文"raincoats are widely used in our daily life"可知，雨衣在日常生活中被广泛使用，是一种有用的发明。useful"有用的"符合语境。beautiful"美丽的"；colorful"多彩的"；careful"仔细的"均不符合文章内容。 2．句意：你知道它是如何被发明的吗？ 根据下文介绍雨衣发明的过程可知，此处询问发明的方式，应用how"如何"。what"什么"；who"谁"；where"哪里"均不符合句意。 3．句意：然而，人们在走路时拿伞经常觉得不方便。 根据"hold an umbrella"以及"walking"可知，此处表示"在走路的时候"，用while引导时间状语从句。while"当……时"符合语境。after"在……之后"；until"直到"；before"在……之前"均不符合句意。 4．句意：麦金托什是苏格兰一家橡皮工厂的工人。 根据"in an eraser factory"以及后文"making erasers"可知，他是在工厂工作的人。worker"工人"符合语境。scientist"科学家"；astronaut"宇航员"；pilot"飞行员"均不符合人物身份。 5．句意：他太忙了，没有清理它，就穿着脏外套回家了。 根据"when making erasers"可知，他正在制作橡皮，工作很忙，所以没有时间清理外套。busy"忙碌的"符合语境。clever"聪明的"；relaxed"放松的"；tall"高的"均不符合逻辑。 6．句意：麦金托什没有雨伞，所以他不得不快速跑回家。 根据"it rained heavily"可知，下大雨时没有雨伞，他需要尽快回家。quickly"快速地"符合语境。suddenly"突然地"；quietly"安静地"；slowly"慢慢地"均不符合文章情境。 7．句意：当他到家时，他脱下了湿衣服。 根据"the wet clothes"可知，到家后需要脱掉湿衣服。take off"脱下"符合语境。put off"推迟"；put on"穿上"；picked up"捡起"均不符合动作逻辑。 8．句意："为什么不制作一件橡胶雨衣呢？"麦金托什自言自语道。 根据人物独自发现问题并产生想法可知，此处表示"他自己告诉自己"，应用反身代词himself。myself"我自己"；himself"他自己"；herself"她自己"；yourself"你自己"。 9．句意：他在雨天穿着"橡胶外套"，到外面散步测试它是否真的能挡住雨。 雨衣是用来挡雨的，keep off表示"阻挡、避开"，keep off the rain表示"挡雨"，off符合语境。on"在……上"；with"和"；in"在……里面"均不能构成正确搭配。 10．句意：橡胶雨衣很快在市场上出现。 根据后文"Year after year, people tried to improve the raincoats."可知，雨衣发明后逐渐进入市场，因此是"出现"。appeared"出现"符合语境。found"发现"；produced"生产"；made"制作"均不能准确表达进入市场这一含义。 B From the earliest days, humans have dreamed of flying. Over the last century, great 1 has been made in the world of air transport (航空运输). But few inventions are 2 for personal use. Now, we may soon have a new choice—the Volonaut Airbike, a flying machine that can turn common people into 3 and let them fly like in science-fiction movies. 4 by Tomasz Patan from Poland, the Volonaut Airbike is described as a "superbike for the skies". It carries one person and can reach a speed of 200 kilometers per hour. It can 5 and land straightly. It even can stay in the air. The Volonaut Airbike is 6 , it has no cockpit, propellers or wings (座舱，螺旋桨，翼部). It is 7 by jet propulsion (喷气推进). The pilot sits on a seat like on a motorbike and rises into the air, controlling the bike through a special helmet. A flight computer turns body movements into real-time flight changes. Because special materials are 8 , the superbike is seven times lighter than a common motorbike. Thanks to its small size and weight, the Volonaut Airbike can 9 reach places that were hard to get before. This opens new 10 for transportation in crowded cities, faraway areas, or even disaster areas. We're not sure when the flying machine will be on sale, but the inventor says it will go to market in the "near future." Let's wait and see! 1．A．rule B．tradition C．progress D．picture 2．A．printed B．protected C．mailed D．designed 3．A．pilots B．policemen C．patients D．dentists 4．A．Bought B．Checked C．Developed D．Moved 5．A．give up B．take off C．throw away D．put down 6．A．pretty B．lucky C．cheap D．special 7．A．refused B．dropped C．powered D．repaired 8．A．lost B．used C．sold D．wasted 9．A．politely B．loudly C．strictly D．easily 10．A．chances B．hobbies C．minutes D．groups 【答案】 1．C 2．D 3．A 4．C 5．B 6．D 7．C 8．B 9．D 10．A 【导语】本文介绍一款新型单人飞行摩托Volonaut Airbike，讲述它的研发者、飞行方式、构造、材质优势，以及它在交通、救援领域的应用前景。 【详解】 1．句意：在过去一个世纪里，航空运输领域取得了巨大进步。 前文开篇讲述人类自古向往飞行，后文引出航空相关发明，make progress是固定搭配，意为"取得进步"，progress"进步"贴合航空行业不断发展的上下文；rule"规则"；tradition"传统"；picture"图片"均无法和make搭配表达行业发展的含义。 2．句意：但很少有发明是为个人使用而设计的。 后文引出专为普通人打造的飞行摩托，designed"设计"符合"发明服务个人"的语境；printed"打印"；protected"保护"；mailed"邮寄"代入文中语义不通。 3．句意：这款飞行器能把普通人变成飞行员，让他们像科幻电影里一样飞行。 下文介绍单人驾驶飞行器，pilots"飞行员"对应驾驶飞行设备的人；policemen"警察"；patients"病人"；dentists"牙医"和驾驶飞行器的上下文无关。 4．句意：这款由波兰的Tomasz Patan研发的Volonaut Airbike被称作"空中超级摩托"。 后文完整介绍飞行器的性能构造，Developed"研发"对应发明者与产品的关系；bought"购买"；checked"检查"；Moved"移动"不符合人与飞行器的逻辑。 5．句意：它可以垂直起飞和降落。 and连接并列动作，land表示降落，take off"起飞"与降落对应，贴合飞行器操作的上下文；give up"放弃"；throw away"扔掉"；put down"放下"均和飞行操作无关。 6．句意：Volonaut Airbike十分特别，它没有座舱、螺旋桨和机翼。 后文列举它和普通飞行器不一样的构造，special"特别的"契合上下文独特设计；pretty"好看的"；lucky"幸运的"；cheap"便宜的"无法对应后文特殊构造描述。 7．句意：它依靠喷气推进提供动力。 后文说明动力来源是喷气推进，powered"提供动力"匹配飞行器动力系统的上下文；refused"拒绝"；dropped"掉落"；repaired"修理"语义不符。 8．句意：因为使用了特殊材料，这款空中摩托比普通摩托车轻七倍。 后半句讲飞行器轻量化的结果，used"使用"对应特殊材料被应用在设备上；lost"丢失"；sold"售卖"；wasted"浪费"和轻量化设计的上下文逻辑冲突。 9．句意：得益于小巧轻便的体型，Volonaut Airbike可以轻松抵达从前难以到达的地方。 前文介绍它体型小、重量轻，easily"轻松地"对应它通行无阻碍的优势；politely"礼貌地"；loudly"大声地"；strictly"严格地"无法修饰抵达地点这个动作。 10．句意：这为拥挤城市、偏远地区甚至灾区的运输开辟了新机会。 前文说它能抵达以往难到达的区域，chances"机会"对应运输行业新的发展可能；hobbies"爱好"；minutes"分钟"；groups"团体"和交通运输发展的上下文无关。 三、补全对话。(本大题共5小题，每小题1分，共5分) 根据对话内容，从方框内的选项中选出能填入空白处的最佳选项，其中有两个为多余选项。 A: Hi, Lucy! I heard you joined the school invention club. 1 B: Yes. We are going to create something useful for students. A: 2 B．We plan to make a smart pencil box. A: A smart pencil box? 3 B: It can help students keep their school things in order and remind them if they forget something. A: Wow! How does it work? B: It has a small screen and a voice system. 4 A: That's really helpful! I always forget my eraser or ruler. B: Me too. That's why we want to make it. A: 5 B: Maybe in two months. We still need to make it better. A．What is it used for? B．How long will it take to finish? C．What are you going to invent? D．Who helped you with the idea? E．Is that true? F．It can tell you what's missing. G．Why do you like it? 【答案】1．E 2．C 3．A 4．F 5．B 【导语】本文是一段情景对话。文章主要讲述 Lucy 加入学校发明俱乐部，和朋友交流俱乐部打算发明智能文具盒，介绍文具盒功能以及完成制作所需时间。 【详解】 1．根据上文"I heard you joined..."（我听说你加入了……）和下文"Yes."（是的），可知此处是在确认消息是否属实，选项E"Is that true?"（那是真的吗？）符合语境。 2．根据下文"We plan to make a smart pencil box."（我们计划制作一个智能铅笔盒），可知此处是在询问具体的发明内容，选项C"What are you going to invent?"（你们打算发明什么？）符合逻辑。 3．根据下文"It can help students keep their school things in order..."（它可以帮助学生整理学习用品……），可知此处是在询问该发明的用途，选项A"What is it used for?"（它是用来做什么的？）符合语境。 4．根据上文提到的"voice system"（语音系统）以及下文A说的"I always forget my eraser or ruler."（我总是忘记带橡皮或尺子），可知此处是在解释该系统如何帮助防止遗忘，选项F"It can tell you what's missing."（它可以告诉你缺了什么）承上启下。 5．根据下文"Maybe in two months."（也许两个月后），可知此处是在询问完成所需的时间，选项B"How long will it take to finish?"（完成它需要多长时间？）符合语境。 四、阅读理解。(本大题共20小题，每小题2分，共40分) 第一节 阅读下列短文，从每小题所给的A、B、C、D四个选项中选出最佳选项。 A Hello, everyone! Here comes this month's School Brain Game. We're going to talk about what you would like to invent (发明). Let your imagination run wild and post (发布) your ideas below. —Andrew, Student Union President Students have a lot of homework. They often go to bed late and wake up early for school. I'd like to invent a machine to help you ________ in the morning without waking you up. It would carefully pick you up, take you to the bathroom and brush your teeth. It would get you dressed and set you down at the dining room table. Then it would gently wake you for breakfast. You'd go to school on time while still getting a good night's sleep! —Michelle, from Grade 9 I'd invent a time machine that could take us to any day in history. We would finally be able to answer questions like "What killed all the dinosaurs?" Just think how different life would be if every question about history could be answered. We would know almost everything. And we could visit the past or the future to see how humans have changed. Imagine visiting your ancestors (祖先)! Imagine going to the future to tell people about life in the past! Just think about all that fun! —Troy, from Grade 8 A flying car! You could go anywhere you wanted. It could prevent traffic jams (堵塞) during rush hour. We wouldn't have to build so many highways. There would be more space to plant trees. The air would be cleaner and fresher. My flying car would be powered by solar energy (太阳能). We could save the Earth and all the plants and animals too. —Rebecca, from Grade 7 Share your thoughts... send   cancel 1．Which of the following phrases is the most suitable for the blank ________? A．keep energetic B．get ready C．think twice D．make progress 2．The following picture shows ________ invention (发明). A．Andrew's B．Michelle's C．Troy's D．Rebecca's 3．With Rebecca's invention, there would be ________ in our cities. ①more trees   ②fewer solar panels (电池板)   ③fewer traffic jams   ④more highways A．①② B．②④ C．③④ D．①③ 【答案】1．B 2．C 3．D 【导语】本文是学校"脑力游戏"活动中的一则帖子，学生会主席Andrew邀请同学们畅想自己想发明的物品。三位学生分别提出了自己的发明想法：Michelle想发明一台能帮助学生在睡梦中完成早晨准备工作的机器；Troy想发明一台时间机器，探索历史和未来；Rebecca想发明一辆太阳能飞车，缓解交通拥堵并保护环境。 【详解】 1．Michelle的发明是帮助学生在不醒来的情况下完成早晨洗漱、穿衣等准备工作，因此"get ready"最合适。 2．Troy的发明是时间机器（time machine），可以带人们回到历史上的任何一天。他在描述中提到"What killed all the dinosaurs?"，说明时间机器可以带人们回到恐龙时代。图片中出现恐龙，正是与Troy的发明描述直接相关的场景，因此，该图片展示的是Troy的发明。 3．Rebecca提到飞车可以"prevent traffic jams"和"There would be more space to plant trees"，对应①③。 B Guillermo González Camarena, a Mexican inventor, was born in 1917. As a child, he loved building things. He made electric toys when he was young. By age 12, he had built a radio with spare parts. At 13, he began studying engineering. He was interested in a new technology of his time: television. Television works by sending pictures and sound to a screen using electrical signals. The first moving images were sent to TVs in the 1920s. Few people had TVs then, but many knew TV would be an important way to learn about the world. Early televisions had many weak points.. They could only show black-and-white images, not color ones. Because of this, many inventors worked to solve these problems. González Camarena was one of the first with a solution. In 1940, he made a "tri-chromatic" (three-color) device, which used three colors: red, blue, and green. When it was connected to a black-and-white TV, people could see color images. The invention was a huge success. But the device was very expensive to make. He wanted everyone to have color TV, so he kept on working to make it cost less. By the early 1960s, he invented a cheaper way to show color on TV. He called it the "Simplified Bi-color System (SBCS)." It cost much less to produce. Starting in 1965, many SBCS TVs were made and sold in Mexico. González Camarena also believed that TV was important to educate children. His ideas helped create Mexico's first educational TV network, "Telesecundaria," which is still used today. Guillermo González Camarena passed away on April 18, 1965. Today, he is remembered as one of Mexico's greatest inventors. 4．Why did González Camarena invent a tri-chromatic device? A．TVs were not perfect to send sound. B．TVs didn't help educate children then. C．TVs were too expensive for people to own. D．TVs could only show black-and-white images. 5．What was González Camarena's view on television? A．It should help create TV network. B．Rich people should make it cheaper. C．It should be widely used and educational. D．There was no need to improve its technology. 6．What do you think of González Camarena according to the passage? A．A creative and caring inventor. B．A clever and friendly educator. C．A grateful and curious inventor. D．A smart and successful educator. 【答案】4．D 5．C 6．A 【导语】本文是一篇记叙文，介绍墨西哥发明家Guillermo González Camarena的成长经历，讲述他不断钻研，发明色彩显示设备推动彩色电视发展，还助力打造墨西哥教育电视网络的故事。 【详解】 4．根据第三段"Early televisions had many limitations. They could only show black-and-white images, not color ones. Because of this, many inventors worked to solve these problems."以及第四段"González Camarena was one of the first with a solution."可知，早期电视只能显示黑白图像，这是主要局限，Camarena发明三色装置是为了解决这个问题。 5．根据第五段"He wanted everyone to have color TV"可知他希望电视被广泛使用；根据第七段"González Camarena also believed that TV was important to educate children."可知他认为电视应具有教育意义。综合可知他认为电视应被广泛使用且具有教育性。 6．通读全文可知，Camarena发明了彩色电视装置，体现了他的创造性（creative）；他希望每个人都能拥有彩色电视并重视儿童教育，体现了他的关怀之心（caring）；文章最后提到他被视为伟大的发明家（inventor）。 C Nowadays, we can easily make video calls to friends and family. However, we can't give high-fives, shake hands or receive hugs through the screen. Scientists have invented special cool gloves to solve this problem to let you "feel" in virtual reality (VR, 虚拟现实). The gloves have small devices (装置) inside that allow them to move. When you interact (互动) with someone in VR, such as shaking hands or passing an object, the gloves will move in different ways. Then you'll have the sense of touch. It's not only fun but also meaningful. Unlike traditional video calls, this technology lets users move freely around each other and interact with virtual objects, like passing a cup or completing group activities. The idea for this technology came from personal experience. A student on the team hadn't seen his family for five years and missed their hugs. He said, "This isn't just about technology. It's about bringing people closer." These gloves can be very helpful in different situations. In hospitals, they could allow patients and their family members to share a comforting touch across distances (距离). In faraway workplaces and classrooms, they offer a fun way to work together. And for loved ones separated by travel, they bring a deeper sense of closeness. The scientists say these gloves can't do exactly what real hugs do, but they can make online interactions feel warmer. Soon, while playing games in VR, you may be able to truly feel your friends high-five! The team is still working on improving the gloves. Future gloves might make you feel even more real, like letting you "touch" different kinds of material! In a word, bringing the sense of touch into virtual spaces is highly valuable in today's world. 7．What is the main problem the special gloves try to solve? A．Making video calls convenient. B．Allowing people to "feel" in VR. C．Helping people record video calls. D．Increasing the number of VR users. 8．What can we learn from the second paragraph? A．How the special gloves work. B．Where the gloves can be used. C．Why video calls are better than VR. D．When scientists invented the gloves. 9．What is the scientists' attitude towards these gloves according to the last paragraph? A．They think the gloves are only for games. B．They doubt the gloves will be very popular. C．They think the gloves can take the place of real hugs. D．They believe the gloves can make online time warmer. 【答案】7．B 8．A 9．D 【导语】本文是一篇说明文，介绍了科学家发明的一种特殊手套，这种手套能让人们在虚拟现实中"感受"触摸，文章阐述了其工作原理、应用场景、发明缘由以及未来展望等。 【详解】 7．根据第一段"Scientists have invented special cool gloves to solve this problem to let you ‘feel' in virtual reality (VR, 虚拟现实)."可知，这种特殊手套试图解决的主要问题是让人们在虚拟现实中"感受"触摸。 8．根据第二段"The gloves have small devices (装置) inside that allow them to move. When you interact (互动) with someone in VR, such as shaking hands or passing an object, the gloves will move in different ways. Then you'll have the sense of touch."可知，此段主要介绍了手套内部有小装置，在虚拟现实中互动时手套会以不同方式移动从而让人有触觉，即介绍了特殊手套的工作原理。 9．根据最后一段"The scientists say these gloves can't do exactly what real hugs do, but they can make online interactions feel warmer."可知，科学家认为这些手套能让在线互动感觉更温暖。 D During the rainy season, Wen's classroom floor was often covered with water from wet umbrellas. The umbrella stand near the door was narrow, so large umbrellas fell out and blocked the way. For invention week, Wen set two goals: keep the floor dry and let students handle umbrellas quickly. His first model used a tall cardboard box with holes cut in the top. It kept umbrellas upright, but water softened the bottom within a day. For the second model, Wen placed the box inside a plastic tray. The floor stayed dry, yet students had difficulty finding their own umbrellas because the handles were too close together. Wen then watched how students entered the room. Most wanted to leave quickly, and few would read a number or use a lock. He changed the design into a low round stand with wide spaces around the edge. Each space had a simple colored shape, so users could remember a red star or a blue circle instead of a number. Water ran through small holes into a removable tray. A three-day test revealed another surprise: the round stand took too much space when all the spaces were filled. Wen cut it into two half-circles and placed them against the wall. He also added rubber feet so the stand would not slide on the wet floor. This version worked well. At the exhibition, Wen showed all four models instead of only the final one. Visitors could see how each failure led to a change in the next idea. His display reminded visitors that a successful invention is often a record of questions, tests and useful mistakes. 10．Why did Wen add a plastic tray? A．To show colored shapes. B．To make the stand taller. C．To hold more umbrellas. D．To collect water. 11．What can we infer from Wen's observation of students? A．A design must fit users' actual habits. B．Every invention needs a computer. C．Colored shapes are harder than numbers. D．A tall stand is always safer. 12．What does "This version" in Paragraph 4 refer to? A．The tall cardboard box. B．The two half-circle stands with rubber feet. C．The round stand before testing. D．The original narrow stand. 13．Which statement best summarizes Wen's design process? A．He copied a costly product and made it cheaper. B．He followed visitors' advice after the exhibition. C．He improved the stand by testing one problem at a time. D．He chose appearance over practical use. 【答案】10．D 11．A 12．B 13．C 【导语】本文是一篇记叙文，主要讲述Wen不断改良雨伞收纳架，一次次发现问题、优化设计，最终研制出实用雨伞架的故事。 【详解】 10．根据第二段中"For the second model, Wen placed the box inside a plastic tray. The floor stayed dry..."以及第三段中"Water ran through small holes into a removable tray."可知，添加塑料托盘是为了接住伞上的水，防止地板变湿。 11．根据第三段中"Wen then watched how students entered the room. Most wanted to leave quickly... He changed the design..."可知，Wen观察到学生想快点离开且不愿用锁，从而改进了设计，这说明设计必须符合用户的实际习惯。 12．根据第四段中"Wen cut it into two half-circles and placed them against the wall. He also added rubber feet... This version worked well."可知，"This version"指代的是前文提到的被切成两个半圆且装有橡胶脚垫的支架版本。 13．通读全文可知，Wen经历了四个模型的变化，每个模型都是为了解决前一个模型发现的问题（如地板湿、难拿伞、占空间等）。第五段也提到"each failure led to a change"，说明他是通过逐步测试和解决具体问题来改进设计的。 E Drones (无人机), also called unmanned aerial vehicles (UAVs), were not always the common tools we see today. Their history is closely connected to military (军事的) use. It is believed that the first drones were developed in the early 20th century for military training. A big step forward happened during World War I when the first drones that could be controlled remotely (远程地) were tested. However, these early drones were very expensive, so it's difficult to produce. The real change began in the 21st century with improvements in technology. Smaller and cheaper sensors (传感器) and GPS systems were invented. This made it possible to produce consumer drones. In 2006, a company called DJI, which was founded in Shenzhen, China, started to develop easy-to-fly drones for the public. These drones were equipped with cameras and could take amazing photos and videos from the sky. Soon, drones were no longer just for the military. They became popular with photographers, farmers, and even delivery (配送) services. Today, drones are widely used around the world. Guangdong Province, especially Shenzhen, is considered a global center for drone making and improving. Drones are used for many purposes. It is clear that this invention has now changed many parts of our work and life. As technology continues to develop, who knows what new uses for drones will be invented in the future. 14．According to Paragraph 2, what helped companies make drones for the public? A．The needs of the military. B．The support from the government. C．The improvements in some technologies. D．The invention of the first camera. 15．What does the underlined word "equipped" in Paragraph 2 probably mean? A．Recalled. B．Provided. C．Nodded. D．Avoided. 16．Which of the following can be inferred (推断) from the passage? A．Drones were very common in the early 20th century. B．DJI was the first company to invent military drones. C．The development of drones in Shenzhen is mentioned to show its local importance. D．Drones are only useful for taking photos and making videos nowadays. 17．What is the best title for the passage? A．The Military Use of Early Drones B．How DJI Became a Famous Company C．The Development and Popularization of Drones D．Drones' Popular Uses in Guangdong Province 【答案】14．C 15．B 16．C 17．C 【导语】本文是一篇说明文，主要介绍了无人机从早期军事用途到21世纪民用化的发展历程，以及当今无人机的广泛应用和未来前景。 【详解】 14．由第二段"The real change began in the 21st century with improvements in technology. Smaller and cheaper sensors and GPS systems were invented. This made it possible to produce consumer drones"可知，技术的进步使公司能够生产面向公众的无人机。 15．结合第二段语境，前文提到DJI公司开始开发面向公众的、易于操控的无人机。接着说"These drones were equipped with cameras"，后文又说"could take amazing photos and videos from the sky"（可以从空中拍摄令人惊叹的照片和视频），这进一步说明相机是无人机上"附带/安装"的设备。"be equipped with"是固定搭配，意为"配备有/装有"，和B选项"提供、配备"最吻合。 16．由第三段"Guangdong Province, especially Shenzhen, is considered a global center for drone making and improving"可知，文中提到深圳是为了说明其作为无人机制造和改良中心的重要性。 17．全文按照时间线介绍了无人机从早期军事用途的雏形，到技术进步后走向民用、普及到各行各业的发展历程，C选项"无人机的发展与普及"适合作标题。 第二节 阅读下面短文，并用英语回答问题（请注意每小题的词数要求）。 F One day, Paula Ma was walking along Castle Island's beach. She found there were lots of plastic pieces in the sea and some were too small to pick up. She began to think about how to solve the problem. First, she did a survey. The result showed there were already 150 million tons of plastic in the sea, and that every year there would be another 8 million tons. She realized something must be done. So she decided to invent a robot that could work under water. She tried again and again. At last her ROV (遥控无人潜水器) came out. It could move through water and pick up plastic pieces, especially the small ones. With this ROV, Paula Ma took part in the Broadcom Masters Competition. It was one of the top STEM competitions. It's for young students around the world. This year, more than 5,000 students were interested in the competition, but only a few got the chance. Paula Ma's ROV caught a lot of attention. It had a camera with three different kinds of lights. It could find plastic pieces easily. Dana Yoerger, an expert, said, "The ROV is nicely done for a 12-year-old girl. She's very clever." In fact, Paula Ma is always learning to solve the world's problems and her parents are always supporting her. At the age of five, she began to go to workshops to learn engineering skills. When she was asked about the future plan, she said, "I want to be an engineer because I like building things. I think many problems can be solved with new inventions. Right now, I'm just caring about plastic problems because there is still a long way to go." 18．How many tons of plastic would be in the sea in the next year after Paula Ma did a survey?（不超过3个词） 19．Who was the Broadcom Masters Competition held for?（不超过8个词） 20．What will Paula Ma do in the near future?（不超过8个词） 【答案】 18．158 million tons. 19．Young students around the world./ It's for young students around the world. 20．She will just care about plastic problems. 【导语】本文是一篇记叙文，主要讲了Paula Ma在沙滩散步时发现了海里有很多塑料碎片，从而发明了遥控无人潜水器。 18．根据"The result showed there were already 150 million tons of plastic in the sea, and that every year there would be another8 million tons."可知，调查时海里已经有1.5亿吨塑料，每年还会增加800万吨，所以下一年总共会有1.58亿吨。故填158 million tons. 19．根据"It was one of the top STEM competitions. It's for young students around the world."可知，是面向全球的年轻学生。故填Young students around the world./ It's for young students around the world. 20．根据"Right now, I'm just caring about plastic problems because there is still a long way to go."可知，她只关心塑料问题，她认为还有很长的路要走。故填She will just care about plastic problems. 五、单词拼写。(本大题共5小题，每小题1分，共5分) 根据首字母及汉语提示，完成下列单词的拼写，使句意明确，语言通顺。 1．We tried our best to turn our ideas into r________ (现实). 【答案】reality/eality 【详解】句意：我们尽全力把想法变成现实。 中文提示"现实"对应的英文单词为reality，固定搭配turn...into reality表示把……变成现实。 2．My grandma is good at making c________ (便宜的) but stylish clothes. 【答案】cheap/heap 【详解】句意：我的奶奶擅长制作便宜但时髦的衣服。括号内中文提示为"便宜的"，以"c"开头，对应形容词"cheap"。 3．From his calm look, I s________ (推断) he has already known the good news. 【答案】suppose/uppose 【详解】句意：从他平静的表情，我推断他已经知道了这个好消息。句中"I"是主语，后面需要接谓语动词，结合"From his calm look"及首字母为s可知，应是说根据他平静的表情来推断事情，suppose"推断"，符合语境。 4．As technology develops r________ (迅速地), more and more AI tools will be invented in the future. 【答案】rapidly/apidly 【详解】句意：随着技术的迅速发展，未来将会有越来越多的AI工具被发明出来。rapidly"迅速地"，副词修饰动词。故填(r)apidly。 5．Matt said he didn't get the book. But I'm c________ (确定的) that I gave it back to him last week. 【答案】certain/ertain 【详解】句意：Matt说他没拿到那本书。但我确定我上周已经还给他了。certain"确定的"，形容词作表语。故填(c)ertain。 六、书面表达。(共20分) 假设你是李华，你校英文报社新增了关于项目式学习的专栏，你所在小组刚完成的项目是“设计飞行自行车”，请你代表小组向专栏投稿，介绍你们设计的自行车，项目进行中遇到的困难及解决办法，并分享你的收获。 项目 A flying bike 特点 速度快，环保（使用太阳能solar power） 困难与解决办法 安全性能，选材料（碳纤维carbon fiber） 收获 团队合作重要性，解决问题能力…… 注意： 1. 短文须包含上述要点，可适当增加细节，以使行文连贯； 2. 文中不能出现真实姓名和学校名称； 3. 词数80~100（首句已为你写好，不计入总词数） I am Li Hua, and I’m glad to share our group’s project on designing a flying bike. 【答案】 例文： I am Li Hua, and I’m glad to share our group’s project on designing a flying bike. Our flying bike has two amazing advantages: it runs fast and is environmentally friendly as it uses solar power. During the design, we faced a big problem—how to ensure its safety. After discussions, we chose carbon fiber as the main material, which is light but strong enough to guarantee safety. This project taught me that teamwork is the most important thing. It also improved our ability to solve these problems. We really hope our design can come true in the future. 【详解】 [总体分析] ①题材：本文是一篇材料作文； ②时态：主要时态为一般过去时和一般现在时； ③提示：考生应覆盖题目要求的三大要点——自行车特点、困难及解决办法、项目收获，要点齐全且逻辑连贯。 [写作步骤] 第一步，承接开头，直接介绍飞行自行车的核心特点； 第二步，阐述项目中遇到的核心困难，并说明对应的解决办法； 第三步，分享项目收获，升华主题。 [亮点词汇] ①environmentally friendly环保的 ②guarantee safety保障安全 ③practical problems实际问题 [高分句型] ①Our flying bike has two amazing advantages: it runs fast and is environmentally friendly as it uses solar power.（as引导原因状语从句） ②After discussions, we chose carbon fiber as the main material, which is light but strong enough to guarantee safety.（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 $ 2026-2027学年九年级上册英语单元自测·安徽专用 Unit 5 Power of Ideas 学校:___________班级：___________姓名：___________分数：___________ （时间：90分钟，满分：100分） 一、单项选择。(本大题共10小题，每小题1分，共10分) 从每小题所给的A、B、C、D四个选项中选出一个可以填入空白处的最佳选项。 1．We will ________ lots of white pollution if we keep using plastic bags while shopping. A．melt B．support C．produce D．discuss 2．With the ________ growth of online payment, more people choose to use digital wallets. A．mobile B．foreign C．rapid D．private 3．— Millie, who do you think would be ______ for playing the lead role of the brave boy? —I think Wang Junkai is the perfect boy for it. A．suitable B．valuable C．responsible D．fashionable 4．— How did you solve the disagreement within the team? — We had a good conversation, and that ________ better cooperation. A．threw away B．led to C．dealt with D．sped up 5．—Do you think the Internet has changed our life? —Sure. It is ________ used in all the fields such as shopping, education, traveling and so on. A．normally B．hardly C．widely D．gradually 6．—Jane and Lisa are sisters, but their faces have different ________. —Yeah, Jane's face is round but Lisa's face is long. A．stones B．heights C．shapes D．sizes 7．The Ganzhou Marathon 2025 ________ on December 7th. More than 18,000 people took part in it. A．was holding B．is holding C．is held D．was held 8．With the hard-working workers, I'm sure we will ________ the project on time. A．afford B．complete C．protect D．change 9．You can ask your classmates for help. ________ of your teachers is free as all of them are having a meeting. A．Both B．Neither C．None D．Either 10．A baby's first month birthday is a special event in China and ________ with a special party. A．is celebrating B．was celebrating C．is celebrated D．celebrates 二、完形填空。(本大题共20小题，每小题1分，共20分) 阅读下列短文，从每小题所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项。 A Many inventions were the results of accidents. Today we're going to learn about a 1 invention—the raincoat. Do you know 2 it was invented? It has been more than two thousand years since we began to use an umbrella. However, people often felt it not convenient to hold an umbrella 3 walking. Then the raincoat was invented. It was said that the raincoat was invented by Macintosh in 1823. Macintosh was a(n) 4 in an eraser factory in Scotland. One day, he poured the rubber liquid (橡胶液体) over his coat carelessly when making erasers. He was too 5 to clean it and went back home with the dirty coat. On the way home, it rained heavily. Macintosh didn't have an umbrella, so he had to run home 6 . When he got home, he 7 the wet clothes. To his surprise, the area of the coat with rubber over wasn't wet. "Why not make a rubber raincoat?" Macintosh told 8 . The next day, he brushed the rubber liquid all over his coat. He wore the "rubber coat" on rainy days and took a walk outside to test if it could really keep 9 the rain. Surprisingly, the clothes inside the" rubber coat" were not wet at all. So the raincoat was invented in this way. The rubber raincoats soon 10 in the market. Year after year, people tried to improve the raincoats. Today raincoats are widely used in our daily life. 1．A．beautiful B．colorful C．useful D．careful 2．A．what B．how C．who D．where 3．A．after B．until C．while D．before 4．A．scientist B．worker C．astronaut D．pilot 5．A．clever B．relaxed C．tall D．busy 6．A．suddenly B．quietly C．quickly D．slowly 7．A．put off B．put on C．took off D．picked up 8．A．myself B．himself C．herself D．yourself 9．A．on B．with C．off D．in 10．A．found B．produced C．appeared D．made B From the earliest days, humans have dreamed of flying. Over the last century, great 1 has been made in the world of air transport (航空运输). But few inventions are 2 for personal use. Now, we may soon have a new choice—the Volonaut Airbike, a flying machine that can turn common people into 3 and let them fly like in science-fiction movies. 4 by Tomasz Patan from Poland, the Volonaut Airbike is described as a "superbike for the skies". It carries one person and can reach a speed of 200 kilometers per hour. It can 5 and land straightly. It even can stay in the air. The Volonaut Airbike is 6 , it has no cockpit, propellers or wings (座舱，螺旋桨，翼部). It is 7 by jet propulsion (喷气推进). The pilot sits on a seat like on a motorbike and rises into the air, controlling the bike through a special helmet. A flight computer turns body movements into real-time flight changes. Because special materials are 8 , the superbike is seven times lighter than a common motorbike. Thanks to its small size and weight, the Volonaut Airbike can 9 reach places that were hard to get before. This opens new 10 for transportation in crowded cities, faraway areas, or even disaster areas. We're not sure when the flying machine will be on sale, but the inventor says it will go to market in the "near future." Let's wait and see! 1．A．rule B．tradition C．progress D．picture 2．A．printed B．protected C．mailed D．designed 3．A．pilots B．policemen C．patients D．dentists 4．A．Bought B．Checked C．Developed D．Moved 5．A．give up B．take off C．throw away D．put down 6．A．pretty B．lucky C．cheap D．special 7．A．refused B．dropped C．powered D．repaired 8．A．lost B．used C．sold D．wasted 9．A．politely B．loudly C．strictly D．easily 10．A．chances B．hobbies C．minutes D．groups 三、补全对话。(本大题共5小题，每小题1分，共5分) 根据对话内容，从方框内的选项中选出能填入空白处的最佳选项，其中有两个为多余选项。 A: Hi, Lucy! I heard you joined the school invention club. 1 B: Yes. We are going to create something useful for students. A: 2 B．We plan to make a smart pencil box. A: A smart pencil box? 3 B: It can help students keep their school things in order and remind them if they forget something. A: Wow! How does it work? B: It has a small screen and a voice system. 4 A: That's really helpful! I always forget my eraser or ruler. B: Me too. That's why we want to make it. A: 5 B: Maybe in two months. We still need to make it better. A．What is it used for? B．How long will it take to finish? C．What are you going to invent? D．Who helped you with the idea? E．Is that true? F．It can tell you what's missing. G．Why do you like it? 四、阅读理解。(本大题共20小题，每小题2分，共40分) 第一节 阅读下列短文，从每小题所给的A、B、C、D四个选项中选出最佳选项。 A Hello, everyone! Here comes this month's School Brain Game. We're going to talk about what you would like to invent (发明). Let your imagination run wild and post (发布) your ideas below. —Andrew, Student Union President Students have a lot of homework. They often go to bed late and wake up early for school. I'd like to invent a machine to help you ________ in the morning without waking you up. It would carefully pick you up, take you to the bathroom and brush your teeth. It would get you dressed and set you down at the dining room table. Then it would gently wake you for breakfast. You'd go to school on time while still getting a good night's sleep! —Michelle, from Grade 9 I'd invent a time machine that could take us to any day in history. We would finally be able to answer questions like "What killed all the dinosaurs?" Just think how different life would be if every question about history could be answered. We would know almost everything. And we could visit the past or the future to see how humans have changed. Imagine visiting your ancestors (祖先)! Imagine going to the future to tell people about life in the past! Just think about all that fun! —Troy, from Grade 8 A flying car! You could go anywhere you wanted. It could prevent traffic jams (堵塞) during rush hour. We wouldn't have to build so many highways. There would be more space to plant trees. The air would be cleaner and fresher. My flying car would be powered by solar energy (太阳能). We could save the Earth and all the plants and animals too. —Rebecca, from Grade 7 Share your thoughts... send   cancel 1．Which of the following phrases is the most suitable for the blank ________? A．keep energetic B．get ready C．think twice D．make progress 2．The following picture shows ________ invention (发明). A．Andrew's B．Michelle's C．Troy's D．Rebecca's 3．With Rebecca's invention, there would be ________ in our cities. ①more trees   ②fewer solar panels (电池板)   ③fewer traffic jams   ④more highways A．①② B．②④ C．③④ D．①③ B Guillermo González Camarena, a Mexican inventor, was born in 1917. As a child, he loved building things. He made electric toys when he was young. By age 12, he had built a radio with spare parts. At 13, he began studying engineering. He was interested in a new technology of his time: television. Television works by sending pictures and sound to a screen using electrical signals. The first moving images were sent to TVs in the 1920s. Few people had TVs then, but many knew TV would be an important way to learn about the world. Early televisions had many weak points.. They could only show black-and-white images, not color ones. Because of this, many inventors worked to solve these problems. González Camarena was one of the first with a solution. In 1940, he made a "tri-chromatic" (three-color) device, which used three colors: red, blue, and green. When it was connected to a black-and-white TV, people could see color images. The invention was a huge success. But the device was very expensive to make. He wanted everyone to have color TV, so he kept on working to make it cost less. By the early 1960s, he invented a cheaper way to show color on TV. He called it the "Simplified Bi-color System (SBCS)." It cost much less to produce. Starting in 1965, many SBCS TVs were made and sold in Mexico. González Camarena also believed that TV was important to educate children. His ideas helped create Mexico's first educational TV network, "Telesecundaria," which is still used today. Guillermo González Camarena passed away on April 18, 1965. Today, he is remembered as one of Mexico's greatest inventors. 4．Why did González Camarena invent a tri-chromatic device? A．TVs were not perfect to send sound. B．TVs didn't help educate children then. C．TVs were too expensive for people to own. D．TVs could only show black-and-white images. 5．What was González Camarena's view on television? A．It should help create TV network. B．Rich people should make it cheaper. C．It should be widely used and educational. D．There was no need to improve its technology. 6．What do you think of González Camarena according to the passage? A．A creative and caring inventor. B．A clever and friendly educator. C．A grateful and curious inventor. D．A smart and successful educator. C Nowadays, we can easily make video calls to friends and family. However, we can't give high-fives, shake hands or receive hugs through the screen. Scientists have invented special cool gloves to solve this problem to let you "feel" in virtual reality (VR, 虚拟现实). The gloves have small devices (装置) inside that allow them to move. When you interact (互动) with someone in VR, such as shaking hands or passing an object, the gloves will move in different ways. Then you'll have the sense of touch. It's not only fun but also meaningful. Unlike traditional video calls, this technology lets users move freely around each other and interact with virtual objects, like passing a cup or completing group activities. The idea for this technology came from personal experience. A student on the team hadn't seen his family for five years and missed their hugs. He said, "This isn't just about technology. It's about bringing people closer." These gloves can be very helpful in different situations. In hospitals, they could allow patients and their family members to share a comforting touch across distances (距离). In faraway workplaces and classrooms, they offer a fun way to work together. And for loved ones separated by travel, they bring a deeper sense of closeness. The scientists say these gloves can't do exactly what real hugs do, but they can make online interactions feel warmer. Soon, while playing games in VR, you may be able to truly feel your friends high-five! The team is still working on improving the gloves. Future gloves might make you feel even more real, like letting you "touch" different kinds of material! In a word, bringing the sense of touch into virtual spaces is highly valuable in today's world. 7．What is the main problem the special gloves try to solve? A．Making video calls convenient. B．Allowing people to "feel" in VR. C．Helping people record video calls. D．Increasing the number of VR users. 8．What can we learn from the second paragraph? A．How the special gloves work. B．Where the gloves can be used. C．Why video calls are better than VR. D．When scientists invented the gloves. 9．What is the scientists' attitude towards these gloves according to the last paragraph? A．They think the gloves are only for games. B．They doubt the gloves will be very popular. C．They think the gloves can take the place of real hugs. D．They believe the gloves can make online time warmer. D During the rainy season, Wen's classroom floor was often covered with water from wet umbrellas. The umbrella stand near the door was narrow, so large umbrellas fell out and blocked the way. For invention week, Wen set two goals: keep the floor dry and let students handle umbrellas quickly. His first model used a tall cardboard box with holes cut in the top. It kept umbrellas upright, but water softened the bottom within a day. For the second model, Wen placed the box inside a plastic tray. The floor stayed dry, yet students had difficulty finding their own umbrellas because the handles were too close together. Wen then watched how students entered the room. Most wanted to leave quickly, and few would read a number or use a lock. He changed the design into a low round stand with wide spaces around the edge. Each space had a simple colored shape, so users could remember a red star or a blue circle instead of a number. Water ran through small holes into a removable tray. A three-day test revealed another surprise: the round stand took too much space when all the spaces were filled. Wen cut it into two half-circles and placed them against the wall. He also added rubber feet so the stand would not slide on the wet floor. This version worked well. At the exhibition, Wen showed all four models instead of only the final one. Visitors could see how each failure led to a change in the next idea. His display reminded visitors that a successful invention is often a record of questions, tests and useful mistakes. 10．Why did Wen add a plastic tray? A．To show colored shapes. B．To make the stand taller. C．To hold more umbrellas. D．To collect water. 11．What can we infer from Wen's observation of students? A．A design must fit users' actual habits. B．Every invention needs a computer. C．Colored shapes are harder than numbers. D．A tall stand is always safer. 12．What does "This version" in Paragraph 4 refer to? A．The tall cardboard box. B．The two half-circle stands with rubber feet. C．The round stand before testing. D．The original narrow stand. 13．Which statement best summarizes Wen's design process? A．He copied a costly product and made it cheaper. B．He followed visitors' advice after the exhibition. C．He improved the stand by testing one problem at a time. D．He chose appearance over practical use. E Drones (无人机), also called unmanned aerial vehicles (UAVs), were not always the common tools we see today. Their history is closely connected to military (军事的) use. It is believed that the first drones were developed in the early 20th century for military training. A big step forward happened during World War I when the first drones that could be controlled remotely (远程地) were tested. However, these early drones were very expensive, so it's difficult to produce. The real change began in the 21st century with improvements in technology. Smaller and cheaper sensors (传感器) and GPS systems were invented. This made it possible to produce consumer drones. In 2006, a company called DJI, which was founded in Shenzhen, China, started to develop easy-to-fly drones for the public. These drones were equipped with cameras and could take amazing photos and videos from the sky. Soon, drones were no longer just for the military. They became popular with photographers, farmers, and even delivery (配送) services. Today, drones are widely used around the world. Guangdong Province, especially Shenzhen, is considered a global center for drone making and improving. Drones are used for many purposes. It is clear that this invention has now changed many parts of our work and life. As technology continues to develop, who knows what new uses for drones will be invented in the future. 14．According to Paragraph 2, what helped companies make drones for the public? A．The needs of the military. B．The support from the government. C．The improvements in some technologies. D．The invention of the first camera. 15．What does the underlined word "equipped" in Paragraph 2 probably mean? A．Recalled. B．Provided. C．Nodded. D．Avoided. 16．Which of the following can be inferred (推断) from the passage? A．Drones were very common in the early 20th century. B．DJI was the first company to invent military drones. C．The development of drones in Shenzhen is mentioned to show its local importance. D．Drones are only useful for taking photos and making videos nowadays. 17．What is the best title for the passage? A．The Military Use of Early Drones B．How DJI Became a Famous Company C．The Development and Popularization of Drones D．Drones' Popular Uses in Guangdong Province 第二节 阅读下面短文，并用英语回答问题（请注意每小题的词数要求）。 F One day, Paula Ma was walking along Castle Island's beach. She found there were lots of plastic pieces in the sea and some were too small to pick up. She began to think about how to solve the problem. First, she did a survey. The result showed there were already 150 million tons of plastic in the sea, and that every year there would be another 8 million tons. She realized something must be done. So she decided to invent a robot that could work under water. She tried again and again. At last her ROV (遥控无人潜水器) came out. It could move through water and pick up plastic pieces, especially the small ones. With this ROV, Paula Ma took part in the Broadcom Masters Competition. It was one of the top STEM competitions. It's for young students around the world. This year, more than 5,000 students were interested in the competition, but only a few got the chance. Paula Ma's ROV caught a lot of attention. It had a camera with three different kinds of lights. It could find plastic pieces easily. Dana Yoerger, an expert, said, "The ROV is nicely done for a 12-year-old girl. She's very clever." In fact, Paula Ma is always learning to solve the world's problems and her parents are always supporting her. At the age of five, she began to go to workshops to learn engineering skills. When she was asked about the future plan, she said, "I want to be an engineer because I like building things. I think many problems can be solved with new inventions. Right now, I'm just caring about plastic problems because there is still a long way to go." 18．How many tons of plastic would be in the sea in the next year after Paula Ma did a survey?（不超过3个词） 19．Who was the Broadcom Masters Competition held for?（不超过8个词） 20．What will Paula Ma do in the near future?（不超过8个词） 五、单词拼写。(本大题共5小题，每小题1分，共5分) 根据首字母及汉语提示，完成下列单词的拼写，使句意明确，语言通顺。 1．We tried our best to turn our ideas into r________ (现实). 2．My grandma is good at making c________ (便宜的) but stylish clothes. 3．From his calm look, I s________ (推断) he has already known the good news. 4．As technology develops r________ (迅速地), more and more AI tools will be invented in the future. 5．Matt said he didn't get the book. But I'm c________ (确定的) that I gave it back to him last week. 六、书面表达。(共20分) 假设你是李华，你校英文报社新增了关于项目式学习的专栏，你所在小组刚完成的项目是“设计飞行自行车”，请你代表小组向专栏投稿，介绍你们设计的自行车，项目进行中遇到的困难及解决办法，并分享你的收获。 项目 A flying bike 特点 速度快，环保（使用太阳能solar power） 困难与解决办法 安全性能，选材料（碳纤维carbon fiber） 收获 团队合作重要性，解决问题能力…… 注意： 1. 短文须包含上述要点，可适当增加细节，以使行文连贯； 2. 文中不能出现真实姓名和学校名称； 3. 词数80~100（首句已为你写好，不计入总词数） I am Li Hua, and I’m glad to share our group’s project on designing a flying bike. 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 $