罗跃梅

世界首批新型氫动力列车在德国揭开了面纱，这标志着德国和其他国家开始努力寻求柴油列车的替代品，以减少污染。

The worlds first hydrogen?powered trains have been unveiled in Germany. They began carrying passengers in Germanys northwestern Lower Saxony state. The new trains will run 100?kilometer trips and can travel up to 140 kilometers an hour.

A French railroad company called Alstom rolled out the two trains. Teams in Germany and France worked in collaboration on the project which was approved by the German government. The new train model， called the Coradia iLint， signifies the beginning of efforts in Germany and other nations to seek an alternative to pollution?producing diesel （柴油） trains， the number of which in circulation is still high.

The Coradia iLint is designed to run on non?or?partially?electrified train lines with low levels of noise. It uses a process that combines hydrogen and oxygen to produce electrical power. If the system produces more energy than the train needs at that time， it can store the extra energy in batteries. The train is powered by a hydrogen fuel cell， its only emission being steam and condensed （浓缩的） water.

A single tank of hydrogen can run a Coradia iLint train for about 1，000 kilometers. This is very similar to the distance a diesel?powered train can run on with a single tank.

Hydrogen?powered trains cost more than diesel trains to build. But Alstom officials say the operating costs are much lower. The company confirms another 14 Coradia iLint trains will make their first appearance in Lower Saxony by 2023.

The head of railroad operations in the area， Carmen Schwabl， paid replacing diesel trains with hydrogen?powered trains a compliment. She said the move was a significant milestone in the field of clean transportation.

Hydrogen Alstom uses as fuel is the by?product of an industrial process. In future， Alstom intends to produce hydrogen from wind energy. The areas many wind turbines （涡轮机） will also produce part of the energy to create hydrogen.

Alstom says several other European countries have also expressed interest in embracing a new journey of clean?burning technologies. France has already said it wants its first hydrogen train to be operating by 2024.

1. Why did Germany build the new trains？

A. To replace diesel trains.

B. To transport more passengers.

C. To make traveling much easier.

D. To strengthen its friendship with France.

2. What is the advantage of the Coradia iLint？

A. It runs without making any noise.

B. It doesnt use electrical power.

C. It is less costly to run.

D. It is cheaper to manufacture.

3. What can be inferred about hydrogen?powered trains？

A. They are put into wide use.

B. They can contribute to green mobility.

C. They can wipe out air pollution.

D. They can discharge water and oxygen.

4. Whats the text mainly about？

A. A pioneer in natural resource conservation.

B. Efforts to reduce emissions.

C. The first?ever hydrogen?powered trains.

D. A new way to make electricity.

Difficult sentence in the text

The new train model， called the Coradia iLint， signifies the beginning of efforts in Germany and other nations to seek an alternative to pollution?producing diesel trains， the number of which in circulation is still high. 这种被叫作Coradia iLint的新列车型号，標志着德国和其他国家开始努力寻求替代品，以替代制造污染的柴油列车，目前柴油列车的流通数量仍然很高。

【点石成金】本句中，called the Coradia iLint为过去分词短语作名词短语The new train model的后置定语；in Germany and other nations和to seek an alternative to pollution?producing diesel trains分别为介词短语和动词不定式作名词efforts的后置定语；which引导的是一个非限制性定语从句，先行词为pollution?producing diesel trains。