13 CR450问世,以工程美学诠释中国高铁新纪元-2025年中考英语临考热点解密抢分练

13 CR450问世,以工程美学诠释中国高铁新纪元 陆地飞虹·技术巅峰 2025年6月，CR450在福厦高铁试跑中飙出 453km/h 世界纪录，其颠覆性突破重塑陆地交通法则： 箭形车头：仿生翠鸟喙流线，压缩波阻力降低 30%，穿越隧道耳压消失 碳纤维骨骼：车身减重25%，却以 5万吨级 挤压铝型材筑牢安全舱 永磁闪电心：中车自主 TQ-800永磁牵引系统，能耗较复兴号再降 10% 核心系统革命 | 模块 | 技术创新 | 全球标杆意义 | | 智慧神经 | 太赫兹通信+北斗定位 | 追踪精度达毫米级 | | 奔跑之足 | 主动降噪柔性转向架 | 弯道速度提升15% | | 生命之肺 | 等离子空气消杀系统 | 细菌灭活率99.8% | 产业链破壁之光 轴承钢珠：洛阳LYC突破 0.1微米圆度公差（超日本NSK标准） 神经芯片：华为“鲲鹏”车规AI芯片算力达 400TOPS，实时预警钢轨微裂纹 制动魔法：碳陶刹车盘耐温 1800℃，制动距离比德国Knorr缩短 18% 战略棋局落子 国际标准：主导ISO发布 《超高速铁路振动控制》 中国方案 经济动脉：成都至北京 3.2小时 贯通，重构“半日华夏经济圈” 技术霸权：德日法联合研发的 NextGen-TGV 因CR450延期（原型车实测仅 420km/h） 文明新图腾 车厢穹顶 《千里江山图》 LED光影流淌，座椅嵌入 景德镇青花瓷纹 。当它掠过长江大桥时，流线车身倒映的不仅是山水，更是工业文明与东方美学的交响——这列 “陆地空间站” 以450公里的时速，将《周礼·考工记》中 “轸之方也，以象地也” 的古老智慧，化为驰骋大地的钢铁诗行。 未来时间锚点： 2026年：京沪线投入运营，票价较机票低 40% 2030年：中老泰高铁全线换装，东盟陆权回归中国标轨 注：以 “破壁” 为暗线（材料/芯片/标准），“文明复调” 为明线（青花瓷/考工记），展现高铁作为大国重器的多维价值。 一、语法选择 （2025·广东东莞·模拟预测）In today’s world, where technology 1 very fast, China has become an important force in the field of technology. It 2 many great things that the whole world can see. The HarmonyOS 3 by Chinese people. It has broken the long-time monopoly of foreign companies in the operating system area. Its new and special design 4 a smart system that can be used in many different smart devices. The Shenzhou-19 spacecraft was 5 launched. This shows the great wisdom and strong determination of Chinese astronauts. Every step, from the precise ignition to the smooth entry 6 orbit, was done with high accuracy. It has helped to carry out many important space tasks. The hypersonic vehicle, 7 is shown with advanced technology, has greatly strengthened our country’s national defense ability and its position in the field of technology. The CR450 high-speed train 8 now under strict testing. Its newly designed power system is not only powerful but also very efficient. It is expected to greatly reduce the travel time between 9 . This will help to make the economy grow and bring different regions closer together. 10 achievements reflect China’s technological prowess and influence. With innovation, China will reach new heights, benefiting all. 1．A．advance B．advances C．advanced D．is advancing 2．A．achieved B．had achieved C．has achieved D．achieves 3．A．was developed B．were developed C．developed D．developing 4．A．create B．creates C．created D．will create 5．A．success B．succeed C．successfully D．successful 6．A．in B．into C．with D．of 7．A．which B．that C．what D．where 8．A．was B．is C．are D．were 9．A．city B．citizens C．cities D．cities’ 10．A．This B．That C．Those D．These 二、阅读理解 （2025·云南昆明·模拟预测）It is widely known that China has the most advanced high-speed railway network in the world. Now, the country is breaking its own speed record with CR450. CR450 can travel at 400 kilometers per hour on average, with a top speed hitting 453 kilometers per hour. Before this, the fastest high-speed train operating in a rail network in the world is China’s CR400, which runs at 350 kilometers per hour on average. Once put into use, for example, the CR450 will shorten the travel time from Beijing to Shanghai to just about two and a half hours, which takes at least four and a half hours at the moment. “The key is not to make the train run fast but to have it brake (刹车) accurately (精准地) and steadily (平稳地),” Zhao Hongwei of the China Academy of Railway Sciences told CCTV News. The standard is that the CR450 should have the same brake distance as the CR400, which is 6,500 meters, even though it travels a lot faster. It can also start braking more quickly, taking just 1.7 seconds compared with the 2.3 seconds needed for the CR400. Apart from having a better braking system, the CR450 has the same noise level as the CR400. Moreover, it is 12 percent lighter and 20 percent less energy-consuming (耗能的), according to CCTV News. With all its advantages, people are getting excited about the train’s debut (首次亮相), which is planned to be within this year. 11．What is the top speed of the CR450? A．350 km/h B．400 km/h C．453 km/h D．500 km/h 12．Lucy will leave Beijing for Shanghai by CR450 at 9: 00 a. m. When will she arrive? A．11:30 a. m. B．12:30. p. m. C．13:30 p. m. D．14:30 p. m. 13．What did Zhao Hongwei tell CCTV News? A．It’s quite important to make the train run faster. B．The key is to make CR450 brake accurately and steadily. C．China has the most advanced high-speed railway network. D．CR450 should have the same brake distance as the CR400. 14．How does Zhao Hongwei support his opinion in paragraph 4? A．By asking questions. B．By giving examples. C．By explaining reasons. D．By listing numbers. 15．What can be the best title for the text? A．A Great Engineer B．The World’s Fastest Train C．High Technology Changes the World D．China Is Growing Fast （2025·黑龙江大庆·二模）On December 29, 2024, two samples of the CR450 high-speed train were shown in Beijing. This wonderful train can reach a test speed of 450 kilometers per hour and an operating speed of 400 km/h. When it starts to be used for business, it will be the quickest high-speed train in the world, much faster than the CR400 that runs at 350 km/h. The China State Railway Group, which made this train, said that the CR450 has set new global standards in many important parts like speed, using less energy, making less noise, and braking performance (制动性能). Even though it goes at a higher speed, its braking is as good as the 350 km/h trains. This is because of the great engineering work that keeps the train steady and safe even when it’s fast. The CR450 also cares a lot about making passengers feel comfortable. By using good noise-cutting technology, the inside of the train is as quiet as the 350 km/h trains. Also, What’s more, its running resistance (阻力) has been decreased by 22 percent and its weight has been reduced by 10 percent, which helps to save energy. The inside has been made again, with 4 percent more room, and there are better places to put luggage. Two samples were shown on that day. They were made by different companies, but both want to give passengers a nice trip. The China State Railway Group will do more tests to make sure the train is okay for business use. Since 2012, China’s railway has made many new things, like the Fuxing high-speed train, and has built a whole high-speed rail technology system. The CR450 shows China’s ability to make new things and its science power. It also shows the good points of China’s system, which helps the railway grow. In the past 15 years, China has built a very big railway network, including the world’s largest and best high-speed rail network, which is very long. The CR450 is an important step in China’s railway growth. 16．We can infer from the passage that the CR450 ________. A．costs more than the CR400 B．is more popular than the CR400 C．is safer than the CR400 D．has more seats than the CR400 17．Which of the following is NOT mentioned about the CR450? A．Its braking performance. B．Its ticket price. C．Its energy saving. D．Its noise reduction. 18．Why is the carriages (车厢) of the CR450 high-speed train quieter than that of the 350 km/h trains? A．Because it travels at a higher speed. B．Because it uses advanced noise-reducing technology. C．Because it is lighter. D．Because it has less running resistance. 19．What is the main idea of the passage? A．The introduction of the CR450 high-speed train. B．The history of China’s high-speed rail. C．The comparison between the CR450 and other trains. D．The future of China’s railway. （2025·云南文山·模拟预测）On December 29, 2024, a new high-speed train called the CR450 was shown in Beijing. This train is a big step forward in technology. It will be the fastest high-speed train in the world when it starts running for passengers. Before this, the fastest high-speed train in the world was China’s CR400, which runs at 350 kilometers per hour on average. But now the CR450 can reach a test speed of 450 kilometers per hour and will run at a speed of 400 kilometers per hour. This means it will help people travel faster and more effectively (高效地). The head of the train looks like a flying arrow (箭). The colors of the train are red and yellow, which are similar to the colors of the Chinese flag. The shape of the train shows the beauty of Chinese calligraphy (书法). Since 2018, a team of scientists and engineers from universities and companies in China has been working together to develop this train. After years of hard work, they have achieved great results. The CR450 is now leading the way in important areas. The train can stop as quickly as slower trains, making it safe even at high speeds. The CR450 uses less energy and is lighter than most trains. It is quiet and comfortable, making the travel experience more enjoyable. The CR450 is smarter and provides better services for drivers and passengers. There is no doubt that the CR450 high-speed train is an exciting development in travel. It has set a new record for Chinese high-speed train. 20．How fast can the CR450 run during the test? A．300 kilometers per hour. B．350 kilometers per hour. C．400 kilometers per hour. D．450 kilometers per hour. 21．What does paragraph 3 mainly talk about? A．The colors and the shape of the train. B．The start year and team members of the train. C．The test speed and the service of the train. D．The advantages and disadvantages of the train. 22．How does the writer support the main idea of the text? A．By telling stories. B．By comparing facts. C．By asking questions. D．By showing pictures. 23．What is the structure of the text? (P= Paragraph) A．B． C． D． 24．What can we infer from the text? A．The CR400 runs faster than the CR450. B．It took scientists less than two years to develop the CR450. C．You can choose to travel by CR400 for a smarter and better service. D．The CR450 reaches a new level in the development of China’s high-speed train. （2025·天津红桥·二模）Technology is the first power! It is a great joy and a matter of pride to see China’s high technology is brightly shining from the sky to the ground. It is widely known that China has well-developed high-speed railway network (铁路网) in the world. Now, the country is breaking its own speed record with the CR450. The CR450 can travel at a top speed of 453 kilometres an hour. Once put into use, it will take just about 2.5 hours to travel from Beijing to Shanghai, which takes at least 4.5 hours at the moment. Even though it can travel so fast, it can also start braking (刹车) quickly, taking just 1.7 seconds, and its noise level keeps low. It creates a safe and comfortable environment for passengers. With the advantages, the CR450 shows China’s leading role and great power to the world. The AG60E is China’s self-developed lightweight two-seat electric plane. It is 6.9 metres long, 2.6 metres high and 8.6 metres wide. It is mainly designed for pilot training, flight experience, and private travel. It uses an electric power system. Compared with the traditional plane, it doesn’t send out greenhouse gases, and its noise level is much lower. The AG60E electric plane draws the world’s attention, for it is a practice of China’s aviation industry (航空工业) towards air pollution. The AG60E is only a starting point. It is expected to become an important force to achieve green and low-carbon development in the field of aviation. 25．How long will it take to travel from Beijing to Shanghai by CR450? A．1.7 hours. B．About 2.5 hours. C．At least 4.5 hours. D．6.9 hours. 26．What is the advantage of CR450? A．High and beautiful.B．Fast and safe. C．Light and small. D．Warm and bright. 27．Why does the world pay attention to the AG60E? A．It is self-developed by China. B．It can be used in many fields. C．It’s environmentally friendly. D．It is brightly shining in the sky. 28．What do the CR450 and the AG60E have in common? A．Their noise level is low. B．They have been widely used. C．They can hold many passengers. D．They can start braking quickly. 29．What does the poster want to show us? A．Chinese people’s wish for green travel. B．Chinese people’s wish for training. C．Great achievements of China’s technology. D．The ways to cut down pollution in China. （2025·广东汕尾·一模）It is widely known that China has the most advanced high-speed railway network in the world. Now, the country is breaking its own speed record with CR450. CR450 can travel at 400 kilometers per hour on average with a top speed hitting 453 kilometers per hour. Before this, the fastest high-speed train operating in a rail network in the world is China’s CR400, which runs at 350 kilometers per hour on average. Once put into use, for example, the CR450 will shorten the travel time from Beijing to Shanghai to just about two and a half hours, which takes at least four and a half hours at the moment. “The key is not to make the train run fast but to have it brake(刹车) accurately(精准地) and steadily(平稳地),” Zhao Hongwei of the China Academy of Railway Sciences told CCTV News. The standard is that the CR450 should have the same brake distance as the CR400, which is 6,500 meters, even though it travels a lot faster. It can also start braking more quickly, taking just 1.7 seconds compared with the 2.3 seconds needed for the CR400. Apart from having a better braking system, the CR450 has the same noise level as the CR400. Moreover, it is 12 percent lighter and 20 percent less energy-consuming(耗能的), according to CCTV News. With all its advantages, people are getting excited about the train’s debut(首次亮相), which is planned to be within this year. 30．What is the top speed of the CR450? A．350 km/h. B．400 km/h. C．453 km/h. D．500 km/h. 31．When will you arrive if you leave Beijing for Shanghai by CR450 at 9:00 a. m.? A．11:30 a. m. B．12:30 p. m. C．13:30 p. m. D．14:30 p. m. 32．What did Zhao Hongwei tell CCTV News? A．It’s quite important to make the train run faster. B．The key is to make CR450 brake accurately and steadily. C．China has the most advanced high-speed railway network. D．CR450 should have the same brake distance as the CR400. 33．How does Zhao Hongwei support his opinion in Paragraph 4? A．By listing numbers.B．By giving examples.C．By asking questions. D．By explaining reasons. 34．What can be the best title for the passage? A．A Great Engineer B．China Is Growing Fast C．The World’s Fastest Train D．High Technology Changes the World （2025·贵州铜仁·一模） The CR450 is a new high-speed train that can go very fast! Two models of this train were recently shown in Beijing. The train can reach a test speed of 450 kilometers per hour and will run at 400 kilometers per hour when it starts carrying passengers. This means it will be the fastest high-speed train in the world! The China State Railway Group, which made the train, says the CR450 is excellent in many areas. It goes fast, stops quickly, uses energy efficiently, and makes little noise. Even though it’s super fast, the CR450’s brakes work as well as those of the trains that go at 350 kilometers per hour. This makes sure that the train can stop safely and stably (稳定地). Another great thing about the CR450 is that it saves energy. The train’s weight is cut by 10 percent. And a lighter body helps the train use less energy. The train is also made to be comfortable for passengers. Even when going at 400 kilometers per hour, the inside of the train is quiet, just like the slower trains, providing a peaceful travel experience. ______ And there are special places for luggage, bikes and even wheelchairs, so everyone has enough room for their things. Looking ahead, the CR450 high-speed train, which is faster, safer, more energy efficient, and more comfortable, is coming at full speed with a bright future! It will further meet people’s wishes for a better travel experience, and leave an important mark in the history of China’s railway development. Moreover, it will contribute Chinese wisdom and solutions (解决方案) to the progress of the world’s railway technology. 35．What speed will the CR450 reach when carrying passengers? A．350 km/h. B．400 km/h. C．450 km/h. 36．What does “brakes” mean in Paragraph 3? A．Parts to go faster. B．Parts to offer seats. C．Parts to stop the train. 37．Which sentence can be put in ______? A．Moreover, the train is also lighter and can save more energy. B．The train’s inside has also given passengers a little more space. C．The train will travel faster from Beijing to Shanghai within 2.5 hours. 38．Which can be the best title for the text? A．The Fastest Train in the World B．The Way to Make Trains Quieter and Safer C．The History of China’s Railway Technology （2025·辽宁大连·二模）Super Fast Train on Its Way The world’s fastest high-speed train is on the way. On December 29, 2024, China brought to light a prototype (样车) of the train. It marks a new era for the country’s high-speed trains. The newest model is called the CR450. CR stands for China Railway. The CR450 is able to run at 450 kilometers per hour in tests. When it enters service, its speed is expected to reach 400 kilometers per hour. 39 The CR400 came out in 2017. It operates at 350 kilometers per hour. 40 According to its developers, the CR450 offers a quieter ride. The noise levels inside the train have been reduced. Meanwhile, cabin (座舱) spaces have been increased so that passengers can enjoy more comfortable rides. In addition, the train has shorter braking (刹车) distance. It is also designed with greater stability (稳定性). All this helps to ensure the safety of passengers. The new train has been tested across several high-speed rail lines in China. 41 Further tests are needed, said the China State Railway Group. All tests are set to be finished within two years. 42 It has built the world’s largest railway network. The network covers almost all corners of the country. High-speed rail has been an effective means of travel for long journeys as it allows people to travel around with ease and comfort. A．It is not yet put into use, though. B．The CR450 does well not just in speed. C．How to reduce the noise of the high-speed train? D．It’s much faster than the CR400 model. E．China is now the world leader in railway development. （2025·山东菏泽·模拟预测） The CR450 is a new high-speed train that can go very fast! Two models of this train were recently shown in Beijing. The train can reach a test speed of 450 kilometers per hour and will run at 400 kilometers per hour when it starts carrying passengers. This means it will be the fastest high-speed train in the world! The China State Railway Group, which made the train, says the CR450 is excellent in many areas. It goes fast, stops quickly, uses energy efficiently (高效地), and makes little noise. Even though it’s super fast, the CR450’s brakes (刹车) work as well as those of the trains that go at 350 kilometers per hour. This makes sure that the train is safe and stable (稳定的). Another great thing about the CR450 is that it saves energy. The train’s weight is cut by 10 percent. And a lighter body helps the train use less energy. The train is also made to be comfortable for passengers. Even when going at 400 kilometers per hour, the inside of the train is quiet, just like the slower trains, providing a peaceful travel experience. The train’s inside has been made nicer, too, giving passengers a little more space. And there are special places for luggage (行李), bikes and even wheelchairs, so everyone has enough room for their things. Looking ahead, the CR450 high-speed train which is faster, safer, more energy-efficient, and more comfortable, is coming at full speed with a bright future! It will further meet people’s wishes for a better travel experience, and leave a significant mark in the history of China’s railway development. Moreover, it will contribute (贡献) Chinese wisdom and solutions to the progress of the world’s railway technology. 43．What is the CR450’s test speed? A．450 km/h. B．400 km/h. C．350 km/h. 44．What is Paragraph 3 mainly about? A．What the CR450 is made of. B．How excellent the CR450 is. C．Why the CR450 runs so fast. 45．What special spaces does the CR450 have for passengers? A．Free food service spaces. B．More seats than other trains. C．Spaces for luggage, bikes, and wheelchairs. 46．What is the main purpose of the CR450’s design? A．To reduce the cost of train tickets. B．To carry more passengers than older trains. C．To provide a faster, safer, and more comfortable travel experience. （2025·河南商丘·二模） Technology is the first power! It is a great joy and a matter of pride to see China’s high technology is brightly shining from the sky to the ground. It is widely known that China has well-developed high-speed railway network (铁路网) in the world. Now, the country is breaking its own speed record with the CR450. The CR450 can travel at a top speed of 453 kilometers an hour. Once put into use, it will take just about 2.5 hours to travel from Beijing to Shanghai, which takes at least 4.5 hours at the moment. Even though it can travel so fast, it can also start braking (刹车) quickly, taking just 1.7 seconds, and its noise level keeps low. It creates a safe and comfortable environment for passengers. With the advantages, the CR450 shows China’s leading role and great power to the world. The AG60E is China’s self-developed lightweight two-seat electric plane. It is 6.9 meters long, 2.6 meters high and 8.6 meters wide. It is mainly designed for pilot training, flight experience, and private travel. It uses an electric power system. Compared with the traditional plane, it doesn’t send out greenhouse gases, and its noise level is much lower. The AG60E electric plane draws the world’s attention, for it is a practice of China’s aviation industry (航空工业) towards air pollution. The AG60E is only a starting point. It is expected to become an important force to achieve green and low-carbon development in the field of aviation. 根据材料内容选择最佳答案。 47．How long will it take to travel from Beijing to Shanghai by CR450? A．1.7 hours. B．About 2.5 hours. C．At least 2.5 hours. D．At least 4.5 hours. 48．What is the advantage of the CR450? A．Fast and safe. B．Light and small. C．Warm and bright. D．Quiet and slow. 49．Why does the world pay attention to the AG60E? A．It is self-developed by China. B．It can be used in many fields. C．It’s environmentally friendly. D．It is a two-seat plane. 50．What do the CR450 and the AG60E have in common? A．Their noise level is low. B．They have been widely used. C．They can hold many passengers. D．They can brake quickly. 51．What does the poster want to show us? A．Chinese people’s wish for green travel. B．The ways to cut down pollution in China. C．China is really a great country. D．Great achievements of China’s technology. 三、短文填空 （2025·河南平顶山·一模）阅读短文，根据语篇要求填空，使短文通顺、意思完整。每空限填一词。 The world’s fastest high-speed train is on the way. On December 29, China brought to light a prototype (样车) of the train. The experts name the newest model the CR450 52 is able to run at 450 kilometers per hour in tests. When it enters service, it will reach 400 kilometers per hour. This will make it much faster 53 the CR400 model. The CR400 came out in 2017. It operates at 350 kilometers per hour. The CR450 does well not just in speed. Its developers say the train has a better braking system (刹车系统). It is also stabler when it runs. In addition, its cabins (客舱) are larger. Passengers will then enjoy safe 54 comfortable rides on the train. But the CR450 will not yet be put into use. More tests are still needed. All tests are set to be finished within two years. China 55 now the world leader in railway development. Its railway network covers about 160,000 kilometers. Over 46,000 kilometers are high-speed rail. This makes China’s high-speed railway network 56 largest in the world. 四、选词填空 （2025·山东泰安·二模）根据短文内容，用方框中所给词语的适当形式填空，使文章通顺、完整。（每词限用一次） weigh; besides; call; secret; record; comfortable; overcome; fast; on; many The world’s fastest high-speed train is on the way. 57 December 29, 2024, China brought to light a prototype (样车) of the train. It 58 a new era (时代) for the country’s high-speed trains.    The newest model is 59 the CR450. It’s able to runs at 450 km/h in tests. When it enters service, its speed is expected to reach 400 km/h. It’s 60 than the CR400 model, which came out in 2017 and runs at 350 km/h. A 50-kilometer-per-hour speed increase may seem small, but 61 difficulties and achieving the result actually requires a lot of time and effort. Here are the 62 behind the higher speed. Lighter weight is important for high-speed trains. Compared with the CR400, the CR450 has cut its 63 by over 10 percent. It has increased also energy conversion efficiency (能量转换效率) by over 3 percent to provide stronger power. The CR450 does well not just in speed. It also has a better braking system (制动系统). It now takes only 6,500 meters to achieve a complete stop from 400 km/h. 64 , it a quieter ride by cutting down the noise levels inside the train. Space for passengers is also increased by 4 percent, which will make them feel more 65 . The prototype has been tested across several high-speed rail lines in China. Before the CR450 is put into service, 66 tests will be done than before to make sure it meets all necessary standards. 五、补全对话 （2025·重庆九龙坡·二模）阅读下面对话，从方框内7个选项中选择5个恰当的句子完成此对话，并把答题卡上对应题目的答案标号涂黑。 A: Dave, the summer vacation is coming. Do you have any plans? B: Absolutely! I’m going to Xi’an with my friends. A: Sounds nice. 67 B: By high-speed train. A: 68 B: Less than 6 hours. It’s 5 hours faster than before. A: Wow, amazing! 69 B: Not this time. CR450 will be put into use this year. We can travel even faster then. A: 70 B．It can travel at 400 kilometers per hour, with the top speed 453km/h. A: I can’t wait to see it! 71 B: CR stands for China Railway. 450 means the speed. It’s a symbol of China’s technology. A．How fast can it run? B．How will you go there? C．How far can it travel? D．What does CR450 mean? E．I’m quite interested in the city Xi’an. F．Are you taking the fastest train in the world, CR450? G．How long does it take to go to Xi’an from Chongqing now? 试卷第1页，共3页 试卷第1页，共3页 学科网（北京）股份有限公司 $$ 13 CR450问世,以工程美学诠释中国高铁新纪元 陆地飞虹·技术巅峰 2025年6月，CR450在福厦高铁试跑中飙出 453km/h 世界纪录，其颠覆性突破重塑陆地交通法则： 箭形车头：仿生翠鸟喙流线，压缩波阻力降低 30%，穿越隧道耳压消失 碳纤维骨骼：车身减重25%，却以 5万吨级 挤压铝型材筑牢安全舱 永磁闪电心：中车自主 TQ-800永磁牵引系统，能耗较复兴号再降 10% 核心系统革命 | 模块 | 技术创新 | 全球标杆意义 | | 智慧神经 | 太赫兹通信+北斗定位 | 追踪精度达毫米级 | | 奔跑之足 | 主动降噪柔性转向架 | 弯道速度提升15% | | 生命之肺 | 等离子空气消杀系统 | 细菌灭活率99.8% | 产业链破壁之光 轴承钢珠：洛阳LYC突破 0.1微米圆度公差（超日本NSK标准） 神经芯片：华为“鲲鹏”车规AI芯片算力达 400TOPS，实时预警钢轨微裂纹 制动魔法：碳陶刹车盘耐温 1800℃，制动距离比德国Knorr缩短 18% 战略棋局落子 国际标准：主导ISO发布 《超高速铁路振动控制》 中国方案 经济动脉：成都至北京 3.2小时 贯通，重构“半日华夏经济圈” 技术霸权：德日法联合研发的 NextGen-TGV 因CR450延期（原型车实测仅 420km/h） 文明新图腾 车厢穹顶 《千里江山图》 LED光影流淌，座椅嵌入 景德镇青花瓷纹 。当它掠过长江大桥时，流线车身倒映的不仅是山水，更是工业文明与东方美学的交响——这列 “陆地空间站” 以450公里的时速，将《周礼·考工记》中 “轸之方也，以象地也” 的古老智慧，化为驰骋大地的钢铁诗行。 未来时间锚点： 2026年：京沪线投入运营，票价较机票低 40% 2030年：中老泰高铁全线换装，东盟陆权回归中国标轨 注：以 “破壁” 为暗线（材料/芯片/标准），“文明复调” 为明线（青花瓷/考工记），展现高铁作为大国重器的多维价值。 一、语法选择 （2025·广东东莞·模拟预测）In today’s world, where technology 1 very fast, China has become an important force in the field of technology. It 2 many great things that the whole world can see. The HarmonyOS 3 by Chinese people. It has broken the long-time monopoly of foreign companies in the operating system area. Its new and special design 4 a smart system that can be used in many different smart devices. The Shenzhou-19 spacecraft was 5 launched. This shows the great wisdom and strong determination of Chinese astronauts. Every step, from the precise ignition to the smooth entry 6 orbit, was done with high accuracy. It has helped to carry out many important space tasks. The hypersonic vehicle, 7 is shown with advanced technology, has greatly strengthened our country’s national defense ability and its position in the field of technology. The CR450 high-speed train 8 now under strict testing. Its newly designed power system is not only powerful but also very efficient. It is expected to greatly reduce the travel time between 9 . This will help to make the economy grow and bring different regions closer together. 10 achievements reflect China’s technological prowess and influence. With innovation, China will reach new heights, benefiting all. 1．A．advance B．advances C．advanced D．is advancing 2．A．achieved B．had achieved C．has achieved D．achieves 3．A．was developed B．were developed C．developed D．developing 4．A．create B．creates C．created D．will create 5．A．success B．succeed C．successfully D．successful 6．A．in B．into C．with D．of 7．A．which B．that C．what D．where 8．A．was B．is C．are D．were 9．A．city B．citizens C．cities D．cities’ 10．A．This B．That C．Those D．These 【答案】 1．D 2．C 3．A 4．B 5．C 6．B 7．A 8．B 9．C 10．D 【难度】0.65 【知识点】科学技术、发明与创造 【导语】本文主要讲述了中国在科技领域取得的诸多重要成就，如鸿蒙系统、神舟十九号宇宙飞船、高超声速飞行器以及CR450高速列车等，这些成就反映了中国的科技实力和影响力。 1．句意：在当今世界，科技发展迅速，中国已成为科技领域的重要力量。 advance前进，动词原形；advances前进，动词第三人称单数形式；advanced前进，动词过去式；is advancing前进，现在进行时。根据“In today’s world”可知，描述的是当前的情况，且强调科技正在快速发展，所以用现在进行时。故选D。 2．句意：它取得了许多全世界都能看到的伟大成就。 achieved实现，动词过去式；had achieved已经实现，过去完成时；has achieved已经实现，现在完成时；achieves实现，动词第三人称单数形式。根据“that the whole world can see”可知，强调过去的动作对现在的影响，即中国已经取得了许多伟大成就，所以用现在完成时。故选C。 3．句意：鸿蒙系统是由中国人开发的。 was developed被开发，一般过去时的被动语态；were developed被开发，一般过去时的被动语态复数形式；developed开发，动词过去式；developing开发，现在分词/动名词。根据“by Chinese people”可知，鸿蒙系统是被动开发的，且主语是单数，所以用一般过去时的被动语态单数形式。故选A。 4．句意：它的新颖独特的设计创造了一个智能系统，可用于许多不同的智能设备。 create创造，动词原形；creates创造，动词第三人称单数形式；created创造，动词过去式；will create将创造，一般将来时。根据“Its new and special design”可知，描述的是鸿蒙系统的设计特点，且主语是单数，所以用一般现在时的第三人称单数形式。故选B。 5．句意：神舟十九号宇宙飞船成功发射。 success成功，名词；succeed成功，动词；successfully成功地，副词；successful成功的，形容词。根据“launched”可知，需要副词修饰动词，表示“成功发射”。故选C。 6．句意：从精确点火到顺利进入轨道的每一步，都做得非常精确。 in在……里；into进入；with和；of……的。根据“orbit”可知，表示“进入轨道”，用介词into。故选B。 7．句意：高超声速飞行器展示了先进的技术，大大增强了我国的国防能力和在科技领域的地位。 which引导定语从句，先行词为物；that引导定语从句，先行词为人或物；what不能引导定语从句；where引导定语从句，先行词为地点。根据“The hypersonic vehicle, ... is shown with advanced technology”可知，此处为定语从句，先行词为物，且从句中缺少主语，所以用which引导。故选A。 8．句意：CR450高速列车目前正在接受严格测试。 was是，过去式；is是，第三人称单数形式；are是，复数形式；were是，过去式复数形式。根据“now”可知，描述的是当前的情况，且主语是单数，所以用一般现在时的第三人称单数形式。故选B。 9．句意：预计它将大大缩短城市之间的旅行时间。 city城市，单数；citizens市民，复数；cities城市，复数；cities’城市的，所有格。根据“between ...”可知，表示“城市之间”，用复数名词cities。故选C。 10．句意：这些成就反映了中国的科技实力和影响力。 This这个；That那个；Those那些；These这些。根据“achievements”可知，表示“这些成就”，用复数形式these。故选D。 二、阅读理解 （2025·云南昆明·模拟预测）It is widely known that China has the most advanced high-speed railway network in the world. Now, the country is breaking its own speed record with CR450. CR450 can travel at 400 kilometers per hour on average, with a top speed hitting 453 kilometers per hour. Before this, the fastest high-speed train operating in a rail network in the world is China’s CR400, which runs at 350 kilometers per hour on average. Once put into use, for example, the CR450 will shorten the travel time from Beijing to Shanghai to just about two and a half hours, which takes at least four and a half hours at the moment. “The key is not to make the train run fast but to have it brake (刹车) accurately (精准地) and steadily (平稳地),” Zhao Hongwei of the China Academy of Railway Sciences told CCTV News. The standard is that the CR450 should have the same brake distance as the CR400, which is 6,500 meters, even though it travels a lot faster. It can also start braking more quickly, taking just 1.7 seconds compared with the 2.3 seconds needed for the CR400. Apart from having a better braking system, the CR450 has the same noise level as the CR400. Moreover, it is 12 percent lighter and 20 percent less energy-consuming (耗能的), according to CCTV News. With all its advantages, people are getting excited about the train’s debut (首次亮相), which is planned to be within this year. 11．What is the top speed of the CR450? A．350 km/h B．400 km/h C．453 km/h D．500 km/h 12．Lucy will leave Beijing for Shanghai by CR450 at 9: 00 a. m. When will she arrive? A．11:30 a. m. B．12:30. p. m. C．13:30 p. m. D．14:30 p. m. 13．What did Zhao Hongwei tell CCTV News? A．It’s quite important to make the train run faster. B．The key is to make CR450 brake accurately and steadily. C．China has the most advanced high-speed railway network. D．CR450 should have the same brake distance as the CR400. 14．How does Zhao Hongwei support his opinion in paragraph 4? A．By asking questions. B．By giving examples. C．By explaining reasons. D．By listing numbers. 15．What can be the best title for the text? A．A Great Engineer B．The World’s Fastest Train C．High Technology Changes the World D．China Is Growing Fast 【答案】11．C 12．A 13．B 14．D 15．B 【难度】0.85 【知识点】说明文、发明与创造 【导语】本文是一篇说明文。文章主要介绍了中国最新高速列车CR450的技术特点和性能优势，包括其速度、制动系统、能耗等方面的突破。 11．细节理解题。根据“CR450 can travel at 400 kilometers per hour on average, with a top speed hitting 453 kilometers per hour.”可知，其最高速度为453 km/h。故选C。 12．细节理解题。根据“the CR450 will shorten the travel time from Beijing to Shanghai to just about two and a half hours”可知，CR450将北京到上海的行程缩短至约两个半小时，露西上午9点乘CR450离开北京前往上海，到达时间为11:30 a.m.。故选A。 13．细节理解题。根据“The key is not to make the train run fast but to have it brake (刹车) accurately (精准地) and steadily (平稳地),”可知，他强调的是制动性能。故选B。 14．推理判断题。根据“which is 6,500 meters…taking just 1.7 seconds compared with the 2.3 seconds…”可知，是通过列数字的方式支持观点。故选D。 15．最佳标题题。通读全文可知，全文围绕CR450的速度和技术突破展开，所以B项符合。故选B。 （2025·黑龙江大庆·二模）On December 29, 2024, two samples of the CR450 high-speed train were shown in Beijing. This wonderful train can reach a test speed of 450 kilometers per hour and an operating speed of 400 km/h. When it starts to be used for business, it will be the quickest high-speed train in the world, much faster than the CR400 that runs at 350 km/h. The China State Railway Group, which made this train, said that the CR450 has set new global standards in many important parts like speed, using less energy, making less noise, and braking performance (制动性能). Even though it goes at a higher speed, its braking is as good as the 350 km/h trains. This is because of the great engineering work that keeps the train steady and safe even when it’s fast. The CR450 also cares a lot about making passengers feel comfortable. By using good noise-cutting technology, the inside of the train is as quiet as the 350 km/h trains. Also, What’s more, its running resistance (阻力) has been decreased by 22 percent and its weight has been reduced by 10 percent, which helps to save energy. The inside has been made again, with 4 percent more room, and there are better places to put luggage. Two samples were shown on that day. They were made by different companies, but both want to give passengers a nice trip. The China State Railway Group will do more tests to make sure the train is okay for business use. Since 2012, China’s railway has made many new things, like the Fuxing high-speed train, and has built a whole high-speed rail technology system. The CR450 shows China’s ability to make new things and its science power. It also shows the good points of China’s system, which helps the railway grow. In the past 15 years, China has built a very big railway network, including the world’s largest and best high-speed rail network, which is very long. The CR450 is an important step in China’s railway growth. 16．We can infer from the passage that the CR450 ________. A．costs more than the CR400 B．is more popular than the CR400 C．is safer than the CR400 D．has more seats than the CR400 17．Which of the following is NOT mentioned about the CR450? A．Its braking performance. B．Its ticket price. C．Its energy saving. D．Its noise reduction. 18．Why is the carriages (车厢) of the CR450 high-speed train quieter than that of the 350 km/h trains? A．Because it travels at a higher speed. B．Because it uses advanced noise-reducing technology. C．Because it is lighter. D．Because it has less running resistance. 19．What is the main idea of the passage? A．The introduction of the CR450 high-speed train. B．The history of China’s high-speed rail. C．The comparison between the CR450 and other trains. D．The future of China’s railway. 【答案】16．C 17．B 18．B 19．A 【难度】0.65 【知识点】说明文、科学技术、交通方式 【导语】本文主要介绍中国最新高速列车CR450的技术突破和优势，展现中国高铁的创新实力。 16．推理判断题。根据“Even though it goes at a higher speed, its braking is as good as the 350 km/h trains. This is because of the great engineering work that keeps the train steady and safe even when it’s fast.”可知，尽管CR450速度更快，但它的制动性能和时速350公里的列车一样好，因为出色的工程设计使得列车即使在高速行驶时也能保持稳定和安全，由此可推断出CR450比CR400更安全。故选C。 17．细节理解题。根据“braking performance”，“save energy”，“good noise-cutting technology”可知，文中提及了制动性能、节能和降噪，未提及票价。故选B。 18．细节理解题。根据“By using good noise-cutting technology, the inside of the train is as quiet as the 350 km/h trains.”可知，车厢更安静是因为采用了先进的降噪技术。故选B。 19．主旨大意题。全文主要介绍了CR450高速列车的性能、技术创新及其在中国铁路发展中的意义，属于对CR450的介绍。故选A。 （2025·云南文山·模拟预测）On December 29, 2024, a new high-speed train called the CR450 was shown in Beijing. This train is a big step forward in technology. It will be the fastest high-speed train in the world when it starts running for passengers. Before this, the fastest high-speed train in the world was China’s CR400, which runs at 350 kilometers per hour on average. But now the CR450 can reach a test speed of 450 kilometers per hour and will run at a speed of 400 kilometers per hour. This means it will help people travel faster and more effectively (高效地). The head of the train looks like a flying arrow (箭). The colors of the train are red and yellow, which are similar to the colors of the Chinese flag. The shape of the train shows the beauty of Chinese calligraphy (书法). Since 2018, a team of scientists and engineers from universities and companies in China has been working together to develop this train. After years of hard work, they have achieved great results. The CR450 is now leading the way in important areas. The train can stop as quickly as slower trains, making it safe even at high speeds. The CR450 uses less energy and is lighter than most trains. It is quiet and comfortable, making the travel experience more enjoyable. The CR450 is smarter and provides better services for drivers and passengers. There is no doubt that the CR450 high-speed train is an exciting development in travel. It has set a new record for Chinese high-speed train. 20．How fast can the CR450 run during the test? A．300 kilometers per hour. B．350 kilometers per hour. C．400 kilometers per hour. D．450 kilometers per hour. 21．What does paragraph 3 mainly talk about? A．The colors and the shape of the train. B．The start year and team members of the train. C．The test speed and the service of the train. D．The advantages and disadvantages of the train. 22．How does the writer support the main idea of the text? A．By telling stories. B．By comparing facts. C．By asking questions. D．By showing pictures. 23．What is the structure of the text? (P= Paragraph) A．B． C． D． 24．What can we infer from the text? A．The CR400 runs faster than the CR450. B．It took scientists less than two years to develop the CR450. C．You can choose to travel by CR400 for a smarter and better service. D．The CR450 reaches a new level in the development of China’s high-speed train. 【答案】20．D 21．A 22．B 23．C 24．D 【难度】0.65 【知识点】说明文、科学技术、交通方式 【导语】本文是一篇说明文，主要介绍了中国新型高速列车CR450的技术进步、设计特点及其在高速列车领域的新纪录。 20．细节理解题。根据第二段“But now the CR450 can reach a test speed of 450 kilometers per hour”可知，CR450在测试中的速度可达450公里/小时。故选D。 21．段落大意题。根据第三段“The head of the train looks like a flying arrow (箭). The colors of the train are red and yellow...The shape of the train shows the beauty of Chinese calligraphy (书法).”可知，本段主要描述了列车的颜色和形状。故选A。 22．推理判断题。根据第二段“Before this, the fastest high-speed train in the world was China’s CR400, which runs at 350 kilometers per hour on average. But now the CR450 can reach a test speed of 450 kilometers per hour”和第五段“The CR450 uses less energy and is lighter than most trains....The CR450 is smarter and provides better services for drivers and passengers.”可推知，作者通过比较事实来支持文章的主要观点。故选B。 23．篇章结构题。通读全文可知，第一段引出主题；第二至五段分别介绍了CR450的速度、外观设计、研发团队以及优势；第六段总结全文。故选C。 24．推理判断题。根据第六段“There is no doubt that the CR450 high-speed train is an exciting development in travel. It has set a new record for Chinese high-speed train”可推知，CR450标志着中国高速列车发展的新水平。故选D。 （2025·天津红桥·二模）Technology is the first power! It is a great joy and a matter of pride to see China’s high technology is brightly shining from the sky to the ground. It is widely known that China has well-developed high-speed railway network (铁路网) in the world. Now, the country is breaking its own speed record with the CR450. The CR450 can travel at a top speed of 453 kilometres an hour. Once put into use, it will take just about 2.5 hours to travel from Beijing to Shanghai, which takes at least 4.5 hours at the moment. Even though it can travel so fast, it can also start braking (刹车) quickly, taking just 1.7 seconds, and its noise level keeps low. It creates a safe and comfortable environment for passengers. With the advantages, the CR450 shows China’s leading role and great power to the world. The AG60E is China’s self-developed lightweight two-seat electric plane. It is 6.9 metres long, 2.6 metres high and 8.6 metres wide. It is mainly designed for pilot training, flight experience, and private travel. It uses an electric power system. Compared with the traditional plane, it doesn’t send out greenhouse gases, and its noise level is much lower. The AG60E electric plane draws the world’s attention, for it is a practice of China’s aviation industry (航空工业) towards air pollution. The AG60E is only a starting point. It is expected to become an important force to achieve green and low-carbon development in the field of aviation. 25．How long will it take to travel from Beijing to Shanghai by CR450? A．1.7 hours. B．About 2.5 hours. C．At least 4.5 hours. D．6.9 hours. 26．What is the advantage of CR450? A．High and beautiful.B．Fast and safe. C．Light and small. D．Warm and bright. 27．Why does the world pay attention to the AG60E? A．It is self-developed by China. B．It can be used in many fields. C．It’s environmentally friendly. D．It is brightly shining in the sky. 28．What do the CR450 and the AG60E have in common? A．Their noise level is low. B．They have been widely used. C．They can hold many passengers. D．They can start braking quickly. 29．What does the poster want to show us? A．Chinese people’s wish for green travel. B．Chinese people’s wish for training. C．Great achievements of China’s technology. D．The ways to cut down pollution in China. 【答案】25．B 26．B 27．C 28．A 29．C 【难度】0.65 【知识点】发明与创造、科学技术、说明文 【导语】本文通过介绍中国高铁CR450和电动飞机AG60E的技术突破，展示了中国在高速交通和绿色航空领域的领先成就。 25．细节理解题。根据“Now, the country is breaking its own speed record with the CR450… it will take just about 2.5 hours to travel from Beijing to Shanghai”可知，乘坐CR450从北京到上海需要约2.5小时。故选B。 26．细节理解题。根据“it can also start braking (刹车) quickly… and its noise level keeps low. It creates a safe and comfortable environment for passengers”可知，CR450的优势是快速且安全。故选B。 27．细节理解题。根据“Compared with the traditional plane, it doesn’t send out greenhouse gases, and its noise level is much lower”可知，AG60E因其环保特性受到世界关注。故选C。 28．细节理解题。根据CR450的“its noise level keeps low”和AG60E的“its noise level is much lower”可知，两者的共同点是噪音水平低。故选A。 29．主旨大意题。全文通过介绍CR450高铁和AG60E电动飞机，展示了中国科技的重大成就。故选C。 （2025·广东汕尾·一模）It is widely known that China has the most advanced high-speed railway network in the world. Now, the country is breaking its own speed record with CR450. CR450 can travel at 400 kilometers per hour on average with a top speed hitting 453 kilometers per hour. Before this, the fastest high-speed train operating in a rail network in the world is China’s CR400, which runs at 350 kilometers per hour on average. Once put into use, for example, the CR450 will shorten the travel time from Beijing to Shanghai to just about two and a half hours, which takes at least four and a half hours at the moment. “The key is not to make the train run fast but to have it brake(刹车) accurately(精准地) and steadily(平稳地),” Zhao Hongwei of the China Academy of Railway Sciences told CCTV News. The standard is that the CR450 should have the same brake distance as the CR400, which is 6,500 meters, even though it travels a lot faster. It can also start braking more quickly, taking just 1.7 seconds compared with the 2.3 seconds needed for the CR400. Apart from having a better braking system, the CR450 has the same noise level as the CR400. Moreover, it is 12 percent lighter and 20 percent less energy-consuming(耗能的), according to CCTV News. With all its advantages, people are getting excited about the train’s debut(首次亮相), which is planned to be within this year. 30．What is the top speed of the CR450? A．350 km/h. B．400 km/h. C．453 km/h. D．500 km/h. 31．When will you arrive if you leave Beijing for Shanghai by CR450 at 9:00 a. m.? A．11:30 a. m. B．12:30 p. m. C．13:30 p. m. D．14:30 p. m. 32．What did Zhao Hongwei tell CCTV News? A．It’s quite important to make the train run faster. B．The key is to make CR450 brake accurately and steadily. C．China has the most advanced high-speed railway network. D．CR450 should have the same brake distance as the CR400. 33．How does Zhao Hongwei support his opinion in Paragraph 4? A．By listing numbers.B．By giving examples.C．By asking questions. D．By explaining reasons. 34．What can be the best title for the passage? A．A Great Engineer B．China Is Growing Fast C．The World’s Fastest Train D．High Technology Changes the World 【答案】30．C 31．A 32．B 33．A 34．C 【难度】0.65 【知识点】说明文、科学技术 【导语】本文主要介绍了中国最新研发的CR450高速列车，该列车以453公里/小时的最高速度刷新纪录，并具备更精准的刹车系统、更低噪音和能耗等优势。 30．细节理解题。根据“CR450 can travel at 400 kilometers per hour on average with a top speed hitting 453 kilometers per hour”可知，CR450的最高速度为453公里/小时。故选C。 31．细节理解题。根据“the CR450 will shorten the travel time from Beijing to Shanghai to just about two and a half hours”可知，上午9点出发后2.5小时到达，即11:30 a.m.。故选A。 32．细节理解题。根据“‘The key is not to make the train run fast but to have it brake accurately and steadily’”可知，赵红卫强调的关键是精准平稳刹车。故选B。 33．论证方法题。第四段通过列举具体数据“6,500 meters... 1.7 seconds”（刹车距离6500米、反应时间1.7秒等）来支持观点。故选A。 34．主旨大意题。全文围绕CR450作为世界最快列车的各项性能展开说明。故选C。 （2025·贵州铜仁·一模） The CR450 is a new high-speed train that can go very fast! Two models of this train were recently shown in Beijing. The train can reach a test speed of 450 kilometers per hour and will run at 400 kilometers per hour when it starts carrying passengers. This means it will be the fastest high-speed train in the world! The China State Railway Group, which made the train, says the CR450 is excellent in many areas. It goes fast, stops quickly, uses energy efficiently, and makes little noise. Even though it’s super fast, the CR450’s brakes work as well as those of the trains that go at 350 kilometers per hour. This makes sure that the train can stop safely and stably (稳定地). Another great thing about the CR450 is that it saves energy. The train’s weight is cut by 10 percent. And a lighter body helps the train use less energy. The train is also made to be comfortable for passengers. Even when going at 400 kilometers per hour, the inside of the train is quiet, just like the slower trains, providing a peaceful travel experience. ______ And there are special places for luggage, bikes and even wheelchairs, so everyone has enough room for their things. Looking ahead, the CR450 high-speed train, which is faster, safer, more energy efficient, and more comfortable, is coming at full speed with a bright future! It will further meet people’s wishes for a better travel experience, and leave an important mark in the history of China’s railway development. Moreover, it will contribute Chinese wisdom and solutions (解决方案) to the progress of the world’s railway technology. 35．What speed will the CR450 reach when carrying passengers? A．350 km/h. B．400 km/h. C．450 km/h. 36．What does “brakes” mean in Paragraph 3? A．Parts to go faster. B．Parts to offer seats. C．Parts to stop the train. 37．Which sentence can be put in ______? A．Moreover, the train is also lighter and can save more energy. B．The train’s inside has also given passengers a little more space. C．The train will travel faster from Beijing to Shanghai within 2.5 hours. 38．Which can be the best title for the text? A．The Fastest Train in the World B．The Way to Make Trains Quieter and Safer C．The History of China’s Railway Technology 【答案】35．B 36．C 37．B 38．A 【难度】0.65 【知识点】说明文、交通方式 【导语】本文是一篇说明文，主要介绍了中国新型高速列车CR450的特点，包括其速度、制动系统、节能性能以及乘客舒适度等。 35．细节理解题。根据文章第1段“The train ... will run at 400 kilometers per hour when it starts carrying passengers.”可知，CR450在载客时的运行速度为400公里/小时。故选B。 36．词句猜测题。根据文章第3段“the CR450’s brakes work as well as those of the trains that go at 350 kilometers per hour.”和“This makes sure that the train can stop safely and stably”，并结合选项可知，它的刹车效果和时速350公里的火车一样好，这确保了列车能够安全稳定地停车。所以brakes指的是使列车停下来的部件，即刹车部件。故选C。 37．推理判断题。根据文章第4段“And there are special places for luggage, bikes and even wheelchairs, so everyone has enough room for their things.”可知，火车上还有专门放行李、自行车甚至轮椅的地方，所以每个人都有足够的空间放东西。因此，填入的句子应与空间相关，选项B“火车的内部也为乘客提供了更多的空间”符合语境。故选B。 38．最佳标题题。文章主要介绍了CR450高速列车的速度、制动系统、节能性能以及乘客舒适度，并强调它是世界上最快的列车。选项A“世界上最快的火车”最能概括文章主旨。故选A。 （2025·辽宁大连·二模）Super Fast Train on Its Way The world’s fastest high-speed train is on the way. On December 29, 2024, China brought to light a prototype (样车) of the train. It marks a new era for the country’s high-speed trains. The newest model is called the CR450. CR stands for China Railway. The CR450 is able to run at 450 kilometers per hour in tests. When it enters service, its speed is expected to reach 400 kilometers per hour. 39 The CR400 came out in 2017. It operates at 350 kilometers per hour. 40 According to its developers, the CR450 offers a quieter ride. The noise levels inside the train have been reduced. Meanwhile, cabin (座舱) spaces have been increased so that passengers can enjoy more comfortable rides. In addition, the train has shorter braking (刹车) distance. It is also designed with greater stability (稳定性). All this helps to ensure the safety of passengers. The new train has been tested across several high-speed rail lines in China. 41 Further tests are needed, said the China State Railway Group. All tests are set to be finished within two years. 42 It has built the world’s largest railway network. The network covers almost all corners of the country. High-speed rail has been an effective means of travel for long journeys as it allows people to travel around with ease and comfort. A．It is not yet put into use, though. B．The CR450 does well not just in speed. C．How to reduce the noise of the high-speed train? D．It’s much faster than the CR400 model. E．China is now the world leader in railway development. 【答案】39．D 40．B 41．A 42．E 【难度】0.65 【知识点】交通方式、科普知识、发明与创造、科学技术 【导语】本文是一篇说明文，主要介绍了中国最新研发的高速列车CR450的特点、性能以及中国在铁路发展方面的成就。 39．根据文章第三段“The CR450is able to run at 450 kilometers per hour in tests… The CR400 came out in 2017. It operates at 350 kilometers per hour.”可知，CR450比CR400快得多。选项D“它比 CR400 型号快得多”符合语境。故选D。 40．根据文章第四段“the CR450 offers a quieter ride… cabin spaces have been increased”及第五段“shorter braking distance… greater stability”可知，CR450不仅在速度方面表现优异。选项B“CR450 不仅在速度方面表现出色”符合语境。故选B。 41．根据文章第六段“Further tests are needed… All tests are set to be finished within two years.”可知该列车尚未投入使用。选项A“不过，它尚未投入使用”符合语境。故选A。 42．根据文章最后一段“It has built the world’s largest railway network… covers almost all corners of the country”可知，中国现在是铁路发展的世界领导者。选项E“中国现在是铁路发展的世界领先者”符合语境。故选E。 （2025·山东菏泽·模拟预测） The CR450 is a new high-speed train that can go very fast! Two models of this train were recently shown in Beijing. The train can reach a test speed of 450 kilometers per hour and will run at 400 kilometers per hour when it starts carrying passengers. This means it will be the fastest high-speed train in the world! The China State Railway Group, which made the train, says the CR450 is excellent in many areas. It goes fast, stops quickly, uses energy efficiently (高效地), and makes little noise. Even though it’s super fast, the CR450’s brakes (刹车) work as well as those of the trains that go at 350 kilometers per hour. This makes sure that the train is safe and stable (稳定的). Another great thing about the CR450 is that it saves energy. The train’s weight is cut by 10 percent. And a lighter body helps the train use less energy. The train is also made to be comfortable for passengers. Even when going at 400 kilometers per hour, the inside of the train is quiet, just like the slower trains, providing a peaceful travel experience. The train’s inside has been made nicer, too, giving passengers a little more space. And there are special places for luggage (行李), bikes and even wheelchairs, so everyone has enough room for their things. Looking ahead, the CR450 high-speed train which is faster, safer, more energy-efficient, and more comfortable, is coming at full speed with a bright future! It will further meet people’s wishes for a better travel experience, and leave a significant mark in the history of China’s railway development. Moreover, it will contribute (贡献) Chinese wisdom and solutions to the progress of the world’s railway technology. 43．What is the CR450’s test speed? A．450 km/h. B．400 km/h. C．350 km/h. 44．What is Paragraph 3 mainly about? A．What the CR450 is made of. B．How excellent the CR450 is. C．Why the CR450 runs so fast. 45．What special spaces does the CR450 have for passengers? A．Free food service spaces. B．More seats than other trains. C．Spaces for luggage, bikes, and wheelchairs. 46．What is the main purpose of the CR450’s design? A．To reduce the cost of train tickets. B．To carry more passengers than older trains. C．To provide a faster, safer, and more comfortable travel experience. 【答案】43．A 44．B 45．C 46．C 【难度】0.94 【知识点】说明文、科普知识 【导语】本文是一篇说明文。文章介绍了中国自主研发的新一代高速列车CR450，重点阐述了其技术创新、性能优势及未来意义。 43．细节理解题。根据“The train can reach a test speed of 450 kilometers per hour...”可知，CR450的试验速度可达450公里/小时。故选A。 44．主旨大意题。根据“brakes work as well as...”、“saves energy”、“lighter body”、“quiet”、“peaceful travel experience”可知，该段围绕CR450的多个优点展开，包括安全性、节能性和乘客体验。故选B。 45．细节理解题。根据“There are special places for luggage, bikes and even wheelchairs...”可知，CR450为乘客提供了行李、自行车和轮椅的专用空间。故选C。 46．推理判断题。根据CR450“faster, safer, more energy-efficient, and more comfortable”和“meet people’s wishes for a better travel experience”可知，设计目标聚焦于提升速度、安全性和舒适性。故选C。 （2025·河南商丘·二模） Technology is the first power! It is a great joy and a matter of pride to see China’s high technology is brightly shining from the sky to the ground. It is widely known that China has well-developed high-speed railway network (铁路网) in the world. Now, the country is breaking its own speed record with the CR450. The CR450 can travel at a top speed of 453 kilometers an hour. Once put into use, it will take just about 2.5 hours to travel from Beijing to Shanghai, which takes at least 4.5 hours at the moment. Even though it can travel so fast, it can also start braking (刹车) quickly, taking just 1.7 seconds, and its noise level keeps low. It creates a safe and comfortable environment for passengers. With the advantages, the CR450 shows China’s leading role and great power to the world. The AG60E is China’s self-developed lightweight two-seat electric plane. It is 6.9 meters long, 2.6 meters high and 8.6 meters wide. It is mainly designed for pilot training, flight experience, and private travel. It uses an electric power system. Compared with the traditional plane, it doesn’t send out greenhouse gases, and its noise level is much lower. The AG60E electric plane draws the world’s attention, for it is a practice of China’s aviation industry (航空工业) towards air pollution. The AG60E is only a starting point. It is expected to become an important force to achieve green and low-carbon development in the field of aviation. 根据材料内容选择最佳答案。 47．How long will it take to travel from Beijing to Shanghai by CR450? A．1.7 hours. B．About 2.5 hours. C．At least 2.5 hours. D．At least 4.5 hours. 48．What is the advantage of the CR450? A．Fast and safe. B．Light and small. C．Warm and bright. D．Quiet and slow. 49．Why does the world pay attention to the AG60E? A．It is self-developed by China. B．It can be used in many fields. C．It’s environmentally friendly. D．It is a two-seat plane. 50．What do the CR450 and the AG60E have in common? A．Their noise level is low. B．They have been widely used. C．They can hold many passengers. D．They can brake quickly. 51．What does the poster want to show us? A．Chinese people’s wish for green travel. B．The ways to cut down pollution in China. C．China is really a great country. D．Great achievements of China’s technology. 【答案】47．B 48．A 49．C 50．A 51．D 【难度】0.65 【知识点】科学技术、应用文 【导语】本文主要介绍了中国两项高科技成果——CR450高速列车和AG60E电动飞机，展示了中国在科技领域的领先地位和强大实力。 47．细节理解题。根据“The CR450 can travel at a top speed of 453 kilometers an hour. Once put into use, it will take just about 2.5 hours to travel from Beijing to Shanghai”可知，乘坐CR450，从北京至上海耗时约2.5小时。故选B。 48．细节理解题。根据“Even though it can travel so fast, it can also start braking (刹车) quickly, taking just 1.7 seconds, and its noise level keeps low. It creates a safe and comfortable environment for passengers. With the advantages, the CR450 shows China’s leading role and great power to the world.”可知，CR450的优势是快速且安全。故选A。 49．细节理解题。根据“it doesn’t send out greenhouse gases…The AG60E electric plane draws the world’s attention, for it is a practice of China’s aviation industry (航空工业) towards air pollution.”可知，AG60E因环保受关注。故选C。 50．细节理解题。根据“its noise level keeps low”以及“its noise level is much lower”可知，两者的共同点是低噪音。故选A。 51．推理判断题。根据“Technology is the first power! It is a great joy and a matter of pride to see China’s high technology is brightly shining from the sky to the ground.”并通读全文可知，全文通过CR450和AG60E展现中国科技成就。故选D。 三、短文填空 （2025·河南平顶山·一模）阅读短文，根据语篇要求填空，使短文通顺、意思完整。每空限填一词。 The world’s fastest high-speed train is on the way. On December 29, China brought to light a prototype (样车) of the train. The experts name the newest model the CR450 52 is able to run at 450 kilometers per hour in tests. When it enters service, it will reach 400 kilometers per hour. This will make it much faster 53 the CR400 model. The CR400 came out in 2017. It operates at 350 kilometers per hour. The CR450 does well not just in speed. Its developers say the train has a better braking system (刹车系统). It is also stabler when it runs. In addition, its cabins (客舱) are larger. Passengers will then enjoy safe 54 comfortable rides on the train. But the CR450 will not yet be put into use. More tests are still needed. All tests are set to be finished within two years. China 55 now the world leader in railway development. Its railway network covers about 160,000 kilometers. Over 46,000 kilometers are high-speed rail. This makes China’s high-speed railway network 56 largest in the world. 【答案】52．which/that 53．than 54．and 55．is 56．the 【难度】0.65 【知识点】科普知识 【导语】本文主要介绍了中国研发的世界最快高速列车CR450，包括其速度、性能、优势以及中国在铁路发展方面的领先地位。 52．句意：专家们将最新的车型命名为CR450，该车型在测试中能够以每小时450公里的速度行驶。根据句子结构可知，此处为定语从句，修饰先行词“the newest model the CR450”，且从句中缺少主语，因此用关系代词“which”或“that”引导定语从句。故填which/ that。 53．句意：这将使它比CR400车型快得多。根据“much faster”和“the CR400 model”可知，此处表示比较，即CR450比CR400快，因此用介词“than”表示比较。故填than。 54．句意：乘客们将在火车上享受安全舒适的旅程。根据“safe”和“comfortable”可知，此处表示并列关系，即安全且舒适，因此用连词“and”连接两个形容词。故填and。 55．句意：中国现在是铁路发展的世界领导者。根据句子结构可知，此处为主系表结构，缺少系动词，且主语“China”为第三人称单数，因此用系动词“is”。故填is。 56．句意：这使中国的高速铁路网成为世界上最大的。根据“largest in the world”可知，此处表示最高级，且形容词最高级前通常需要加定冠词“the”。故填the。 四、选词填空 （2025·山东泰安·二模）根据短文内容，用方框中所给词语的适当形式填空，使文章通顺、完整。（每词限用一次） weigh; besides; call; secret; record; comfortable; overcome; fast; on; many The world’s fastest high-speed train is on the way. 57 December 29, 2024, China brought to light a prototype (样车) of the train. It 58 a new era (时代) for the country’s high-speed trains.    The newest model is 59 the CR450. It’s able to runs at 450 km/h in tests. When it enters service, its speed is expected to reach 400 km/h. It’s 60 than the CR400 model, which came out in 2017 and runs at 350 km/h. A 50-kilometer-per-hour speed increase may seem small, but 61 difficulties and achieving the result actually requires a lot of time and effort. Here are the 62 behind the higher speed. Lighter weight is important for high-speed trains. Compared with the CR400, the CR450 has cut its 63 by over 10 percent. It has increased also energy conversion efficiency (能量转换效率) by over 3 percent to provide stronger power. The CR450 does well not just in speed. It also has a better braking system (制动系统). It now takes only 6,500 meters to achieve a complete stop from 400 km/h. 64 , it a quieter ride by cutting down the noise levels inside the train. Space for passengers is also increased by 4 percent, which will make them feel more 65 . The prototype has been tested across several high-speed rail lines in China. Before the CR450 is put into service, 66 tests will be done than before to make sure it meets all necessary standards. 【答案】 57．On 58．records 59．called 60．faster 61．overcoming 62．secrets 63．weight 64．Besides 65．comfortable 66．more 【难度】0.4 【知识点】交通方式 【导语】本文主要介绍了中国最新高速列车CR450的特点和优势。 57．句意：2024年12月29日，中国公布了该列车的样车。根据空后的“December 29, 2024”表示具体的一天可知，此处用介词on“在（某一天）”，句首首字母大写。故填On。 58．句意：它记录了中国高速列车的新时代。根据“It … a new era (时代) for the country’s high-speed trains.”的语境并结合备选词汇可知，此处指记录了中国高速列车的新时代，record“记录”，句子时态为一般现在时，主语为“It”，用三单形式。故填records。 59．句意：最新型号被称为CR450。根据“The newest model is…the CR450.”的语境并结合备选词汇可知，此处指火车的型号，call“给……命名”，用过去分词形式，构成被动语态。故填called。 60．句意：它比2017年推出的CR400型号更快，CR400的运行速度为350公里/小时。根据上文“each 400 km/h”以及空后的“runs at 350 km/h”可知，CR450比CR400快，用比较级faster。故填faster。 61．句意：每小时50公里的速度提升看似很小，但克服困难并实现这一结果实际上需要大量的时间和精力。根据“difficulties”并结合备选词汇可知，此处指克服困难，overcome“克服”，应用动名词形式，作主语。故填overcoming。 62．句意：以下是实现更高速度的秘密。根据下文“Lighter weight is important for high-speed trains.”并结合备选词汇可知，此处介绍实现更高速度的秘密，secret“秘密”，在句中作主语，谓语为“are”，用复数形式。故填secrets。 63．句意：与CR400相比，CR450的重量减少了10%以上。根据上文“Lighter weight is important for high-speed trains.”并结合备选词汇可知，此处指重量减轻，分析句子结构可知，此处用名词形式，作宾语，weight“重量”符合。故填weight。 64．句意：此外，它通过降低列车内部的噪音水平，提供了更安静的乘坐体验。根据“It now takes only 6,500 meters to achieve a complete stop from 400 km/h…it a quieter ride by cutting down the noise levels inside the train.”的语境并结合备选词汇可知，此处句意发生了递进，besides“此外”符合，句首首字母大写。故填Besides。 65．句意：乘客空间也增加了4%，这将使他们感到更舒适。根据“ Space for passengers is also increased by 4 percent”并结合备选词汇可知，空间增加，应是会感到更舒适，comfortable“舒适的”符合。故填comfortable。 66．句意：在CR450投入使用之前，将进行比以往更多的测试，以确保其符合所有必要的标准。根据“to make sure it meets all necessary standards”并结合备选词汇可知，确保其符合所有必要的标准，应是会进行比以往更多的测试，应用比较级more“更多的”符合。故填more。 五、补全对话 （2025·重庆九龙坡·二模）阅读下面对话，从方框内7个选项中选择5个恰当的句子完成此对话，并把答题卡上对应题目的答案标号涂黑。 A: Dave, the summer vacation is coming. Do you have any plans? B: Absolutely! I’m going to Xi’an with my friends. A: Sounds nice. 67 B: By high-speed train. A: 68 B: Less than 6 hours. It’s 5 hours faster than before. A: Wow, amazing! 69 B: Not this time. CR450 will be put into use this year. We can travel even faster then. A: 70 B．It can travel at 400 kilometers per hour, with the top speed 453km/h. A: I can’t wait to see it! 71 B: CR stands for China Railway. 450 means the speed. It’s a symbol of China’s technology. A．How fast can it run? B．How will you go there? C．How far can it travel? D．What does CR450 mean? E．I’m quite interested in the city Xi’an. F．Are you taking the fastest train in the world, CR450? G．How long does it take to go to Xi’an from Chongqing now? 【答案】67．B 68．G 69．F 70．A 71．D 【难度】0.65 【知识点】介绍、交通方式、旅行 【导语】对话围绕“高铁技术发展”展开，通过暑假出行计划引出对CR450列车的讨论。 67．根据“By high-speed train.”可知，A在询问交通方式，选项B“你怎么去那儿？”符合语境，故选B。   68．根据“Less than 6 hours...”可知，A询问所需时间，选项G“现在从重庆到西安需要多长时间？”对符合语境，故选G。   69．根据“Not this time. CR450 will be put into use...”可知，A询问是否乘坐CR450，选项F“你要坐世界上最快的火车CR450吗？”符合语境，故选F。   70．根据“It can travel at 400 kilometers per hour...”可知，A询问速度，选项A“它能跑多快？”符合语境，故选A。   71．根据“CR stands for China Railway...”可知，A追问CR450的含义，选项D“CR450是什么意思？”符合语境，故选D。 试卷第1页，共3页 试卷第1页，共3页 学科网（北京）股份有限公司 $$