When it comes to comfort, most travelers would pick trains over planes any day. Trains usually offer more leg and elbow room than airplanes. Besides, there are no seat belt signs to keep you from getting up and moving around. And yet, being stuck in a seat for hours on end means long train rides can still be challenging on the body and mind.【小题1】

If budget permits, upgrading your seat is perhaps the most important thing you can do to make a long train ride more comfortable.【小题2】 Therefore, you can lie down on overnight rides, or a first-class or business-class seat instead of a spot in coach to land yourself more legroom and a footrest.

A tablet (平板电脑) stocked with books, movies, and music can be a lifesaver on long train rides. However, you’ll need a plan for keeping it charged. 【小题3】 Make sure you have the right adapter for your charger if you’re traveling in a foreign country. Consider bringing along some low-tech forms of entertainment, too, like travel games or even a simple pack of cards.

【小题4】 Similarly, window seats on trains appeal to train riders. After all, you’re even more likely to have scenery worth seeing out the windows of a train.

Part of the appeal of traveling by train is watching a variety of landscapes slip by outside your window, but once darkness falls — or if you simply need a nap — you might want to escape from the outside world for a while.【小题5】

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In the United States, a company is working on a project that could change the way we think about public transportation. Its planned system would move people around in steel tubes. Those passengers would be traveling at speeds of up to 1, 200 kilometers per hour.

The futuristic transportation system is called Hyperloop. Workers plan to test the system next year in a specially built community called Quay Valley. The town will be powered entirely by energy from the sun.

The Hyperloop transport system is the idea of businessman Elon Musk. Dirk Ahlborn is head of Hyperloop Transportation Technologies. He says his company has taken Mr Musk's idea and is developing a system that will be safe, environmentally friendly and fast.

" It's 100 percent solar-powered...we’re not going to get up to 760 miles per hour, but we believe we can actually break the records that are existing right now.”

This means that a four-hour drive from Los Angeles, California to Las Vegas, Nevada, could someday take only 30 minutes by Hyperloop.

The system involves a series of capsules (密封舱) that float inside a long tube. These containers wouldn’t need to travel along a pathway or track. The system has been designed to operate above or below ground.

Inside the tube there is a low pressure environment very similar to an airplane that’s high in the sky . So now the capsule travelling inside the tube doesn’t meet with as much resistance(阻力), and therefore can travel really fast with very little energy.

Dick Ahlborn and his company will use an eight-kilometer track in Quay Valley to find the best way to set up passenger traffic and repair capsules. A larger system will cost an estimated(估算的) 6-10 billion dollars to build.

If Mr Ahlborn and his company succeed, we may one day see these very fast Hyperloo capsules speeding through tubes around the world.