1 . What are your retirement plans? Keep working? Get more exercise? Or learn something new? You may put them on hold. There’s a chance that, sooner or later, you might have to move further than you were thinking, as far as mars.

On Thursday, National Geographic will show the first-ever Mars show home, giving earthlings (地球人) an idea of what their life could look like on the Red Planet. In the not-so-distant year of 2037, the igloo-shaped structure could be the home of your future.

It shows a house built using recycled spacecraft (航天器) parts and Martian soil, called regolith, which has been microwaved into bricks. Some parts of the home are recognizable—a kitchen, a bedroom—but there are fundamental differences that are important to human survival.

As the Martian atmosphere is around one hundredth as thick as the Earth’s, people will need permanent (永久的) shelter from the sun; society will move largely indoors. Most buildings will be connected by underground passages and the houses won’t have windows. The homes will have simulated solar lighting, or natural light that has been bent several times.

Walls will need to be 10 to 12 feet thick to protect people from dangerous rays (光线) that can pass through six feet of steel, and a double air-locked entrance to keep the home under proper pressure.

“We don’t think of our houses as things that keep us alive, but on Mars your house will be a survival centre,” says Stephen Petranek, author of How We’ll Live on Mars. This is not just the stuff of sci-fi. “10 to 20 years from now there will certainly be people, on Mars.” Petranek says.

“We’ve had the technology for 30 years to land people on Mars, but we haven’t had the will,” Petranek says. But two main factors have “completely swung public attitudes”.

The private companies’ participation has forced government agencies to speed up their game, and influential films such as Gravity and The Martian have caught society’s eye.

1. What can we know about the show home from the text?

A．It has no windows or doors due to security concern.

B．Its design presents the idea of environmental protection.

C．It has thick walls keeping the home under proper pressure.

D．Its underground passages connect all the building together.

2. What do the underlined words “put them on hold” in Paragraph 1 probably mean?

A．Put them off.

B．Give them away.

C．Carry them through.

D．Take them seriously.

3. According to Petranek, what has sped up the process of sending people to Mars?

A．The great influence of the Mars show home.

B．The development of related technology.

C．The competition from private companies.

D．The popularity of influential books on Mars.

4. What is the best title for the text?

A．Living on Mars: Possible or Not

B．Sending People to Mars: Yes or No

C．First-ever show home: How Is It Made

D．Future Home on Mars: What Will It Be Like