Many people think the   1  time is spent, the more work will be done. So students have to spend the whole day doing school work  2   the three meals.

  Modern students have many  3 . They love sports, computers and music. A   4   holiday can get them away from too much school work , and they can do what they like. But still teachers do not  5  it. Because they have too much homework, they have no time to enjoy themselves. Students are really tired of their weekend homework. So they don’t do it   6   Sunday night. And there is not enough time to finish the homework carefully. The poor weekend homework usually makes teachers  7  .

    Things always get worse 8  right ideas. Too much school work makes students lose  9  in learning. It’s also bad for their health.

    A horse runs faster after a rest. But for students only a rest is not enough. So such a condition（状况）should be 10   to give students both pleasure and knowledge.

  (    )1 A. many       B. much     C. more     D. most

  (    )2 A. except B. for     C. during    D. with

  (    )3 A.hobbies B. books        C. pens     D. friends

  (    )4 A.two days B. two-days    C. two-day  D. two-day’s

  (    )5 A. talk about          B. think about

C. speak of            D. look after

  (    )6 A. on     B. except   C. after        D. until

  (    )7 A. to get angry          B. get angry    

C. to feel unhappy     D. quite surprised

  (    )8 A. to     B. by          C. without   D. with

  (    )9 A. interested          B. interest       

C. interesting          D. themselves

  (    )10 A. changed B. kept   C. taught   D. made

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.