I think that the world will be an easy place to live in. We1have machines and robots and they will2us do all the3jobs, and we don't have to do things4washing dishes and5the beds, though we won't have any dishes at all. Maybe we will just throw the dishes away after each meal. I6that doctors will be able to7us alive8a long time. I hope that when I am 80 years old, there9something that will keep me alive for1080 years, so I will live to be 160 years old.

We live in the “computer age”. Today, it is more and more ifor us to use computers. We use them at w, and we also use them at home. Adults use computers and cuse computers, too. We often use the mouse to run all the work.

Slowly, you may fpainful and numb(麻木的)in your hand, your wrist, your shoulder, and your neck. What's wwith you? The mouse is eating your body fyour hand to all. Some researchers explain that we feel painful bwe often repeat the same action—click(点击). So we feel ulittle by little.

Nowadays, there are no best ways to sthis problem. The only way is to change the way we use the mouse and the keyboard(键盘). When at work, we should have a break and eto keep our body healthy.

Kate take part in the sports meeting.

Mars is the planet most like Earth. 3. Flying to Mars is a difficult task for humans.

There is an experiment with the name “Mars 500”in Russia. Six volunteers take part in the experiment. They come from China, Russia, France and Italy. They won't go to outer space. They will stay in small modules(太空舱)on the ground for 520 days. It's just like a real space journey(旅程).

In the modules, they will experience a lot: flying to Mars, working on Mars and flying back. During the long “journey”, the volunteers can only eat space food. They can shower every 10 days. They can call their friends or families. 4. Anyone of them can quit(退出)if he doesn't feel well. This experiment helps scientists know how well humans will be on a long journey to Mars.

Wang Yue, 26, from China, is the youngest of the volunteers. He is a teacher at the China Astronaut Research and Training Center in Beijing.