At the moment, it may be difficult to imagine, but many people believe that, by the year 2100, we will live on the planet Mars. Our own planet, Earth, is becoming more and more crowed and polluted. Luckily, we can start again and build a better world on Mars. Here is what life could be like.

First of all, transport should be much better. At present, our spaceships are too slow to carry large numbers of people to Mars — it takes months. However, by 2100, spaceship can travel at half the speed of light. It might take us two or three days to get to Mars!

Secondly, humans need food, water and air to live. Scientists should be able to develop plants that can be grown on Mars. These plants will produce the food and air that we need. However, can these plants produce water for us ? There is no answer now.

There is a problem for us to live on Mars. Mars pulls us much less than the Earth does. This will be dangerous because 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 than that on Earth in many ways, People will have more space. Living in a large building with only 10 bedrooms is highly possible. Many people believe that robot will do most of our work, so we have more time for our hobbies.

There will probably be no school on Mars. Every student will have a computer at home which is connected to the internet. They can study, do their homework 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. Food will not be the same — meals will probably be in the form of pills and will not be as delicious as they are today, Also, space travel will make many people feel ill. The spaceship will travel fast but the journey to Mars will probably be very uncomfortable.

46. According to the text, by the year 2100, some of us will possibly live __________ .

 A. on the moon                        B. on Mars          

 C. under the sea                       D. in the sun

47. So far, how long will it take us from the earth to Mars by spaceship ?

 A. Two or three days                   B. A few years

 C. A few days                         D. A few months

48. In the future, the students on Mars ____________ .

A. needn’t study at all     

B. will study mainly in a classroom

C. will meet each other face to face every day   

D. will study mainly through the internet

49. Life on Mars will be better than life on the earth because ___________ .

A. there will be more space and less work to do    

B. only a few people will live there

C. there will be much delicious food     

D. all students don’t need to do any homework

50. According to the text, which of the following about Mars is NOT true ?

 A. Transport will be much better and faster.  

 B. We need to develop a special plant which can produce water.

 C. Food will be much more tasty.

 D. On Mars, we can jump higher than on the earth.

阅读理解

　　One should be moderate in all things. Moderation is always the safest way to do things, and a virtue we should have. Let's take the student life for example. There are some students who study too hard and play too little, while there are others who play too much and study too little. On the one hand, it is harmful to his health if he does too few physical exercises, and on the other hand, it is harmful to his mind if he plays too much.

　　In the matter of eating, one also should be moderate. Don't eat too much or too little. Eating too much will make you sick, while eating too little will make you weak.

　　The man of progress is he who neither has too high an opinion of himself nor thinks too poorly of himself. If he thinks too high of himself, he is surely to become very proud, but if he has too poor an opinion of himself, he will have no courage to make an advance. Both conditions above will make you lose your aim in life. A broadminded man is he who always moves within the orbit of reasonableness. In any activities in one's life, moderation is one of the best ways to enjoy real happiness.

1．“Someone is moderation”means ________.

[　　]

A．he walks neither too fast nor too slowly

B．he shows good sense and never goes to extremes

C．he is not only safe but also successful

D．he is either tall or short

2．In the passage the writer suggests that the student should ________.

[　　]

A．only study hard without any time to play

B．spend most of his time playing different games

C．have much more time to study than to play

D．correctly arrange his time for study and play

3．According to the writer, one should eat ________.

[　　]

A．neither too much nor too little

B．food rich in fat

C．a little amount of food so as cat to be fat

D．as much food as one can if the food is tasty

4．If one wants to be broadminded, he must ________.

[　　]

A．be full of courage

B．enjoy real happiness

C．do everything reasonably

D．believe in himself

5．According to the writer's opinion, ________.

[　　]

A．thinking highly of yourself will lead to success

B．moderation can help you enjoy life

C．if you have no courage, you will think little of yourself

D．if there is no moderation, you will lose aim