1 . What do you plan to do when you retire? 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 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, 99 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 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. |
| 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 propel pressure. |
| D．Its underground passages connect all the buildings together. |
| A．The development of related technology. |
| B．The competition from private companies. |
| C．The great influence of the Mars show home. |
| D．The popularity of influential books on Mars. |
| 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 |
2 . What will man be like in the future-in 5,000 or even 50,000 years? We can only make guesses, but we can be sure that he will be different from what he is today, for man is slowly changing all the time.
Let us take an example. Man, even five hundred years ago, was shorter than he is today. Now, on average（平均），men are about three inches（英尺）taller. Again, in the modern world we use brains a great deal. Even so, we still make use of only about 20% of the brain’s capacity（容量）.As time goes on, however, we shall have to use our brains more and more, and eventually we shall need larger ones! This is likely to bring about a physical change to the head, especially the forehead, will grow larger.
Nowadays our eyes are used very often. In fact, we use them so much that they become weaker and we have to wear glasses. But over a very long period of time it is likely that man’s eyes will grow stronger.
On the other hand, we tend to make less use of our arms and legs. These, as a result, are likely to grow weaker. At the same time, however, our fingers will grow more sensitive because they are used a great deal in modern life.
But what about hair? This will probably disappear from the body altogether in course of time because it does not serve a useful purpose any longer. In the future, then, both sexes are likely to be bald（光头的）.
Perhaps all this shows that future man will not be a very attractive being to look at! This may well be true. No matter how great the change is, future man will still have a lot in common with us.
1. The passage mainly tells us that________.| A．man’s life will be different in the future |
| B．future man will look quite different from us |
| C．man is growing taller as time passes |
| A．weight and ears | B．brain and height | C．arms and legs |
| A．he makes use only 20% of the brain’s capacity |
| B．the other 80% of his brain will grow with time |
| C．he will use his brain more and more as time goes on |
| A．纤细的 | B．灵敏的 | C．笨拙的 |
| A．He may be hairless because hair is no longer useful. |
| B．He has smaller eyes and wears better glasses. |
| C．His fingers grow weaker because he doesn’t have to make use of them. |
