书面表达发挥你的想象，我们如何才能在火星上居住呢？在 火星上和在地球上的生活有什么不同？根据以下提示 完成一篇80词左右的短文：

  1. 交通工具是航天飞机，其速度达到光速的一半；

  2. 科学家开发出了能产生食物、氧气和水的植物；

  3. 人们通过穿特制的靴子来解决火星上的重力 问题；

  4. 在火星上人们有更多的空间和更多的空余时间；

  5. 在火星上，学生可以在家里通过星际网络学习；

  6. 但在火星上的食物没有今天的美味，而且火星之 旅将令人不舒服。

    Is there life on Mars? We still do not know.According to scientific data,we are s1 that people cannot live on Mars. People need much oxygen to breathe,but there is almost no oxygen on Mars.

   Living on Mars would be 1 2 living on a very high mountain.There would be little air. It might be 50℃ a 3 zero at noon and 100T!below zero at night.

   Many people u 4 to think there could be plants on Mars.We now know that Mars has very little carbon. Carbon is a kind of material found in all p 5 and animals on the Earth.

   Through a telescope,Mars 16 red.In some places,it seems grey.At times,the grey colour t 7 grey-green,then brown,and then grey again. People once thought this suggested that plant life changed c 8 with seasons.

   Today we know that the red colour c 9 from a fine dust of iron on the planet. Scientists are still working to e 10 the changing colours.Will man go to Mars one day? If they do,they will have to take along their own oxygen,food,clothes,and something to sleep in.

1. 2. 3. 4. 5.

6. 7. 8. 9. 10.

6. 现在我不想吃任何东西。

I don't eating anything now.

5. 在火星上，地球上的东西很难找到。

Things  find on Mars.

4. 你可以购买一辆飘移在空中的小轿车。

You can buy a car .

3. 据说这种新型轿车不产生空气污染。

It is said that this new kind of car  .

2. 新的公共交通系统应该被专门设计得舒适。

The new  should  .

1. 我想买一本南京旅游指南。

I'd like to buy  in Nanjing.

goods;electronic;entertainment;feel like;a guide to 

1. The shopping mall is both a place for shopping and a place of.

2. Our are second to none in the world market.

3. A trained dog can act as a blind person.

4. This dictionary is also available in form.

5. He is so ill that he doesn’t  eating anything.

try,make,be, call,but,anything,America,if, visit,hundred 

   Do you believe there are aliens? We’ll 1   a phone call and you will know. A group of 2 can help.They made a device (装置) to “talk” to aliens. 3  you want to talk to an alien,you only need to 4  www. TalkToAliens,com,call 1 -900-226-0300 and say,“Hello,aliens,this is the 5  from the Earth .Can you hear me?” You can say 6  you want.

   7  now,they only take phone calls from people in the US.The call 8  $3. 99  every minute.After the hotline began in February,www. TalkToAliens,com has got 9  of calls. There is one call every three minutes. They are also 10  to send people's e-mails,photos and videos into space.