题目

阅读理解 The world's biggest electric vehicle — a 45-ton mining dump truck named the eDumper — may have to give up its throne. The newcomer, powered with both electricity and a reserve of hydrogen fuel, is going to steal that title as the largest electric mining truck. London-based Anglo American is developing the beast of a machine — it weighs 290 tons — as part of its sustainable mining vision. The conceptual work is done, but U.K-based Williams Advanced Engineering will bring the truck to life. The idea is to replace the vehicle's diesel engine (柴油机) with a high-power modular lithium-ion battery (锂电池). "We are delighted to be involved in this innovative and exciting project which shows the potential of battery technology that can adapt to increased demands, from automotive and motorsport to ‘heavy duty' industrial applications," Craig Wilson, managing director of Williams Advanced Engineering, said. While the eDumper — a mining truck used to move stones from the sides of mountains in Switzerland — relies entirely on pure electricity and pure physics for power, the Anglo American truck will use both a lithium-ion battery and a hydrogen fuel cell (电池) module. Altogether, the new truck will have over 1,000 Kilowatt hours of energy storage. Hydrogen fuel is a clear fuel that produces only water as a by-product when consumed in a fuel cell. It's typically produced from natural gas nuclear power, or renewable wind and solar power. Adding hydrogen fuel cells to the vehicle's battery will allow the truck to run for longer periods of time without recharging. There's also a third type of power that comes into play with the Anglo American truck: kinetic (动力的) energy created through the process of regenerative braking (再生制动系统). When an electric vehicle — be it the Anglo American truck, or the eDumper — rolls down a hill, that movement creates electrical energy for the battery as you brake. The electric motors power the car through the battery's stored energy, but can also become mini generators that return some energy back to the battery. After Anglo American finishes test trials with the truck, the firm will conduct studies to understand how the truck's power units can be used to provide energy storage in other applications. （1） What can be known about "the eDumper"? A . It weighs more than 290 tons. B . It is powered by hydrogen fuel. C . It will no longer be the largest electric truck. D . It will discourage buyers for being expensive. （2） What can be inferred from Craig Wilson's words? A . Battery technology is the key to updating vehicles. B . Battery technology is the basis of manufacturing trucks. C . The development of the lithium-ion battery is limited. D . The future of the lithium-ion battery is promising. （3） What is the benefit of adopting hydrogen fuel cells? A . It can save a lot of money. B . Vehicles become more eco-friendly. C . It has no environmental impact at all. D . Vehicles no longer need to be recharged. （4） According to paragraph 5, which of the following can be a feature of regenerative braking? A . Autonomous braking. B . Energy transformation. C . Simple operation. D . zero-carbon emission. 答案： C D B B

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