1 . Nowadays, everyone seems to hope to go into space and live on new planets. Instead of depending on another pre-existing planet, could we make a new planet by ourselves?

First of all, if we were to live on it, we should find a good place in space to put the new planet. We would want it to be in a habitable zone, which means the planet should be at the right distance from its star to make sure there would be perfect temperatures and most importantly, liquid water.

We’d also need the right materials to make the planet. Our Earth is made up of many different elements (元素). If we made our own new planet, we’d probably want it to have similar elements and a similar structure (结构). We’d also want enough water to form some oceans.

But even if we get all of the materials, creating a new planet like Earth could have many troubles. It might be something more like a huge space station. It would be pretty expensive if we wanted it to be super big.

We would probably also need a lot of food because there is going to be many scientists and astronauts out in space working on this project!

According to NASA, each astronaut uses about 0.83 kilograms of food per meal, including 0.12 kilograms of packaging (包装) material. Without the weight of the packaging material, we’d need about 780 kilograms of food just to feed one astronaut for a year.

Putting all these together could make it possible to make our own planet one day! In fact, creating a new planet would probably require a very modern technology and there would be tons of other things to think about. And if this is possible, it won’t likely happen within a very long time.

1. To create a new planet, which of the following should we first do?

A．To collect materials similar to Earth.	B．To prepare plenty of food for astronauts to eat.
C．To design its inner structure.	D．To find a proper place to set it.

2. How much food will an astronaut really eat for each meal?

A．About 0.12 kilograms.	B．About 0.71 kilograms.
C．About 0.83 kilograms.	D．About 0.95 kilograms.

3. What does the author think of making a new planet?

A．It is a waste of time and money.

B．It may be a dangerous thing for humans.

C．It is impossible to come true in the near future.

D．It should be one of NASA’s next plans.