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题型:阅读理解-阅读单选 难度:0.85 引用次数:120 题号:15492079

A small team of researchers has found that battery-powered trains could become economical as soon as 2023. The group argues that improved battery technology and cheap, renewable energy could soon allow battery power to compete with common fuel to power trains.

Most of the goods trains in the U. S. run on common fuel, spewing about 0.6 percent of total U. S. carbon emissions. In this new effort, the researchers suggest that switching to battery power could prevent these emissions.

Electric trains in the U. S. get their power from overhead lines — a system that is expensive and inefficient. The team suggests that batteries could provide a better option; more specifically, they claim that a single locomotive equipped with a 14-megawatt battery system would be enough to replace a train powered by a common fuel engine. They further claim that such a locomotive could carry a train about 240 kilometers on a single charge. This would consume half the energy of a common-powered train. And if the battery is charged using a renewable resource, it would reduce the carbon footprint of an electric train to zero.

Most current common fuel locomotives actually run-on electricity — the common fuel is used to power onboard generators. Thus, all that would be needed for most locomotives would be to replace the generators and add a boxcar just behind the locomotive to carry a large battery. Adding more boxcars with batteries would increase the range of the train. The batteries could be charged at designated stops, provided fast-chargers for such large batteries are developed.

As an alternative, battery-carrying boxcars could be changed for fresh ones at designated stops, greatly reducing wait times. The researchers believe that at least for the near future, operating costs would be somewhat higher for battery-powered trains, but they suggest the environmental improvements would make it worth it.

1. What is the probable meaning of the underlined word “spewing” in paragraph 2?
A.Taking in.B.Giving off.C.Cutting down.D.Consisting of.
2. What does the third paragraph intend to tell us about electric trains?
A.Their advantages.B.Their working process.
C.Their travel distance.D.Their carbon footprint.
3. What can we infer about electric trains from this text?
A.There are no fast-chargers at present.B.They are powered by overhead lines.
C.The locomotives will be carried by a boxcar.D.They are environmentally friendly and economical.
4. Why do researchers advocate electric trains at present?
A.For reducing costs.B.For environmental benefits.
C.For higher economic efficiency.D.For the convenience of passengers.

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阅读理解-阅读单选(约330词) | 较易 (0.85)
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文章大意:本文为一篇说明文。文章介绍了几种非传统的通勤方式:电动汽车、自走车以及喷气背包。

【推荐1】For millions of people sitting in a traffic jam or standing on a crowded train, the daily commute (通勤) probably isn’t the best part of their day. But cars and trains aren’t the only travel options.


Electric Vehicles

For those who have a short commute, you could consider getting an electric bike or scooter. An electric scooter has the advantage of being highly portable (轻便的): small and light enough to carry to your office. You’ll just need to check if they are allowed to be used in your area.

Take RYNO for example. It’s a single-wheel electric scooter, whose highest speed is about that of a bicycle. And like other electric vehicles, it can be charged anywhere.


WalkCar

If you want transportation for short distances, the WalkCar might be perfect for you.

The WalkCar looks like a laptop and only weighs three kilograms. It’s also incredibly easy to use — stand on it and it will start to move; move your weight to one side and it will change direction. The WalkCar will take you at a speed of up to 10 kilometers per hour and can travel 12 kilometers on one charge.


Jetpacks

Weighing around 200 kilograms, jetpacks aren’t exactly portable, but they’re sure to have a lot of fun and attract a lot of attention. Running on petrol, the jet engines allow the user to lift off the ground and fly in the air.

The world’s first jetpack is the Martin Jetpack. Once you’ve attached this tiny personal jet plane onto your back, you’ll be able to travel up to 50 kilometers at a height of 1,000 meters. With a price tag of about $150,000, this is probably the most expensive option, but it will almost certainly be the coolest!

1. What do Electric Vehicles and WalkCar have in common?
① being portable.     ② being rechargeable.
③ being widely used.     ④ being suitable for short distances.
A.①②③B.①②④C.①③④D.②③④
2. What might be the reason for customers to choose jetpacks?
A.The price.B.The appearance.
C.The weight.D.The flight performance.
3. Which column is the text probably taken from?
A.Lifestyle.B.Travel.C.Entertainment.D.Transport.
2022-07-15更新 | 148次组卷
阅读理解-阅读单选(约330词) | 较易 (0.85)
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文章大意:本文是一篇应用文。文章向我们介绍了四个对自行车最友好的国家。

【推荐2】The Most Bicycle Friendly Countries Around the World

Denmark

Cycling is a hugely popular means of transport and a way to see the country in Denmark. In fact, across the country you’ll find huge networks of cycle paths where no motorized vehicles (机动车辆)can go, so you can feel safe while riding your bike. Because of this cycling has become one of the main tourist attractions and activities in Denmark, particularly when it Comes to exploring the beautiful capital city of Copenhagen.

Norway

Because of the popularity of cycling here, you’ll find plenty of bicycle parking and public rentals (出租), so you can simply get a bike and go as you explore the country. Much like Denmark, the dedicated (专用的) bike lanes do not allow for cars or motorised vehicles to enter them.

The Netherlands

In the Netherlands the government prefer bikes to cars and encourage people to travel by bike as much as possible. If you’re a tourist visiting big cities like Amsterdam and Rotterdam, you can easily hire a bike and explore. There are bike lanes (and bikes) everywhere, they even have their own sets of traffic lights. Much like driving, there are strict rules for cycling in the country and these must obey.

Sweden

While it can get very cold there in the winter, cycling is still enjoyed year-round and the country develops a cycling culture that encourages people to use bikes as their primary means of transport. For this reason, there are supportive measures in place and plenty of places to rent a bike from. Many travel Sweden’s beautiful cities on two wheels, Stockholm, in particular, is a great place to explore on a bike.

What’s more, cycling is so big there that they have pump stations for deflated (泄气的) tires and bicycle-only parking. The use of electric bikes is also becoming more popular here.

1. Which city is suitable for a tourist to explore by bike in Denmark?
A.Copenhagen.B.Amsterdam.C.Rotterdam.D.Stockholm.
2. What do Denmark and Norway have in common?
A.They have set strict rules for cycling.
B.Their main tourist attraction is cycling.
C.They allow visitors to rent bikes for free.
D.They have the dedicated cycle paths or bike lanes.
3. What can a visitor easily find in Sweden?
A.The use of electric cars.B.Warm weather in winter.
C.Pump stations for deflated tires.D.Free bicycle-only parking places.
2022-11-18更新 | 165次组卷
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【推荐3】Singapore’s public transport system (公共交通系统) is one of the best in the world, so you should have no problem finding your way around like a local (当地人). There are three main forms of public transport that you would find in any other major city—trains, buses and taxis.

TRAINS

Trains run from 6 a.m. to midnight. Single trip tickets start at 80 cents. If you buy an EZ-Link card for $15, you can ride the trains and buses all you like.

If you need more information, just call Transit Link on 1800 767 4333.

BUSES

There are several bus services in Singapore and fares (车费) start at 80 cents. Be sure to always ask the driver the cost of your ticket as he can not give changes.

If you need help, just call Transit Link on 1800 767 4333.

TAXIS

There are three main taxi companies—City Cab (6552 2222), Comfort (6552 1111) and Tibs (6552 8888). Booking (预订) can also be made easily by calling the numbers listed above.

RENTAL () CARS

Driving in Singapore is a pleasure and if you like to travel at your own pace, renting a car is a good choice. Renting takes away the hassle of getting to places around Singapore. Just sit back and enjoy the city. It also means you’ll get to see a lot more that a train or a bus won’t let you see.

For car rental, call Avis on +65 6737 1668.

1. If you need to find the bus number, you may call________.
A.+65 6737 1668B.6552 8888
C.1800 767 4333D.6552 2222
2. By an EZ-Link card, you can take________.
A.both buses and trainsB.only trains
C.both buses and taxisD.only rental cars
3. When you take a bus there, always remember to ________.
A.take your own license with youB.ask the driver how much your ticket is
C.buy the bus map of SingaporeD.book your ticket ahead of time
4. What does the word “hassle” mean in Chinese?
A.麻烦B.乐趣C.景点D.费用
5. What do you know about traveling in Singapore from the passage?
A.A local has no trouble finding his way around.
B.It’s much cheaper to go around by bus than by train.
C.You can see a lot more in Singapore only by renting a car.
D.It’s very convenient for visitors to travel in Singapore.
2022-08-26更新 | 120次组卷
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