阅读理解。 A China’s Railway Sector: Faster, Greener and More Intelligent As a key part of the country’s transportation infrastructure, China’s railway network has made remarkable progress in 2024, focusing on speed upgrades, green transformation and intelligent development. By the end of last year, the total length of China’s railways reached 162,000 kilometers, with high-speed rail accounting for 48,000 kilometers, maintaining its leading position globally. A major highlight is the debut of the CR450 high-speed train prototype. With a test speed of 450 km/h, it will operate at 400 km/h when entering commercial service, up from the current 350 km/h of CR400 series. The new train uses carbon fiber materials to reduce weight by 10%, cutting energy consumption while improving speed. It also features quieter cabins and 4% more passenger space, including areas for wheelchairs and strollers. Another green breakthrough is the CINOVA H2 hydrogen-powered train, unveiled at an international transport fair in Berlin. Running on hydrogen fuel cells, it achieves zero carbon emissions, with only water as a byproduct. Capable of reaching 200 km/h and traveling 1,200 kilometers on a single refueling (which takes just 15 minutes), it can carry over 1,000 passengers. Each such train can reduce CO emissions by 730 metric tons annually if operating 300,000 kilometers. Both innovations reflect China’s commitment to building a greener and more efficient railway system, bringing convenience to passengers and contributing to global carbon reduction efforts. （ ）1. What is the total length of China’s high-speed rail network by the end of 2024 A. 162,000 km. B. 48,000 km. C. 114,000 km. D. 400,000 km. （ ）2. What advantage does the CR450 train have over the CR400 series A. Lower test speed. B. Heavier body weight. C. Higher operating speed. D. Fewer passenger seats. （ ）3. What makes the CINOVA H2 train environmentally friendly A. It uses carbon fiber materials. B. It produces no carbon emissions. C. It refuels in a short time. D. It has a long travel range. 词汇回顾 transportation infrastructure：交通基础设施 remarkable progress：显著进步 green transformation：绿色转型 prototype：原型机 commercial service：商业运营 carbon fiber materials：碳纤维材料 energy consumption：能源消耗 hydrogen-powered：氢动力的 zero carbon emissions：零碳排放 byproduct：副产品 refueling：加注燃料 carbon reduction：碳减排 B Natalie, a young Italian woman, has lived in Beijing for eight years and now calls China her second hometown. Her journey with Chinese culture began in 2015 when she was a college student in Italy. She chose to study Chinese and later got support from the Confucius Institute, which made her fall in love with the lively learning atmosphere of the Chinese class. In 2018, Natalie returned to China for work and settled in Beijing. She was deeply attracted by the city’s unique charm — the blend of ancient history and modern development. Wandering in the hutongs or walk ... ...
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