A. There will probably be no school on Mars.
B. It might take us two or three days to get to Mars.
C. There is a problem for us to live on Mars.
D. Food will not be the same.
E. First, people will have more space.
Many people believe that, by the year 2100, we will live on the planet Mars(火星). Here is what life could be like.
First of all, transport should be much better. By 2100, spaceship can travel at half the speed of light.  【小题1】 
Secondly, humans need food, water and air to live. Scientists should be able to find plants that can grow on Mars. These plants will provide us with food and air.
 【小题2】  We could easily jump too high and fly slowly away into space. To prevent this, humans on Mars have to wear special shoes to make themselves heavier.
Life on Mars will be better in many ways.  【小题3】  It is possible to live in a large building with many bedrooms. Then, robot will do most of the work, so we have more time for hobbies.
 【小题4】 Every student can study, do their homework on the computer and take exams in online schools. Each student will also have their own online teacher called “e-teacher”.
However, in some ways, life on Mars may not be better than that on the earth today.  【小题5】Meals will probably be in the shape of pills(药片) and will not be as delicious as they are today. Also, space travel will make many people feel ill.

What will the future be like? What do you think of it? Here are some answers from some students.

Roy Burns: I think life in the future will be better.Most people in the world will use “green cars” by 2020, so there will be less pollution and people will live to be 200 years old.As for space travel, I would say, we will travel to Mars(火星) and some other stars in about fifty years.

Helen Lester: If we don’t take good care of the earth now, our children and grandchildren will be born into a world with too much pollution.There will be fewer trees and more buildings, because there will be more people.

Kitty Smith: I agree with Helen Lester.Things will be worse.The weather in the future will be much hotter.Human beings will have to look for another planet to live on.

1.What are the students doing?

A．They are talking about space travel.

B．They are predicting the future.

C．They are talking about pollution..

D．They are predicting the weather in the future.

2.How many things does Roy Burns predict?

A．Two              B．Three            C．Five              D．Six

3. What does Helen Lester think life will be like in the future?

A．People will live much longer.

B．People will have to live on the moon.

C．Everybody will drive a green car.

D．There will be more buildings and fewer trees.

4.What does the underlined word “planet” mean in Chinese?

A．太空站           B．宇宙             C．星球             D．南极

5. Why does Kitty Smith think human beings will have to live on another planet?

A．The earth will be too crowded for human beings to live on.

B．There will be too much pollution everywhere.

C．There will be too many people.

D．The earth will be too hot to live on.

What will the future be like? What do you think of it? Here are some answers from some students.
Roy Burns: I think life in the future will be better.Most people in the world will use “green cars” by 2020, so there will be less pollution and people will live to be 200 years old.As for space travel, I would say, we will travel to Mars(火星) and some other stars in about fifty years.
Helen Lester: If we don’t take good care of the earth now, our children and grandchildren will be born into a world with too much pollution.There will be fewer trees and more buildings, because there will be more people.
Kitty Smith: I agree with Helen Lester.Things will be worse.The weather in the future will be much hotter.Human beings will have to look for another planet to live on.
【小题1】What are the students doing?