Robots (机器人) seem new to most people, but they have a long history. ________ one was made by a Greek.

The robots in the films are usually stronger, ________ and cleverer than people. In real life, most robots are used in factories. They are used to do many dangerous, difficult or boring ________. Some people can’t look after ________ and robots can help them. For example, some people can’t see, and they use dogs ________ themselves move around. This kind of dog is called a guide dog (导盲犬). But not scientists are making robots help them. In the future, robot dogs ________ take the place of (代替) these guide dogs.

Today robots are ________ used in American hospitals. In the hospital, a robot ________ meals from the kitchen to the sick people’s rooms. It never lost its way because it has a ________ of the hospital in its computer system (系统).

Robots can help us in a lot of different ways. However, they ________ take the place of humans.

【推荐2】We live in the “Computer Age”. Just 35 years ago, computers couldn’t do so much. They were big _______ expensive. They used a lot of energy. Only a few people were interested _______ them. Today computers are _______ and cheaper. They can do much difficult work. Computers become important _______ many reasons. They work _______ than man and make fewer mistakes. They can _______ so much information. A computer can work out _______ problems in a few seconds. A person might need years _______ out so many problems.

People now use computers in _______ every kind of work—finding ________ things, guiding trains and planes, managing telephone calls and traffic lights, and ________ begin to use small computers in schools and homes.

Computers are very ________ and the use of computers is ________. More computers mean more jobs for many people ________ people need to run and repair ________.

【推荐3】Man has invented four kinds of satellites (卫星). The first kind of satellite _______ the geography of the earth. They are used to make maps. They also help countries to see where they _______ find oil or gold.

The second kind of satellite is used to guide _______ and planes. A ship or a plane can send a message to the satellite, and the satellite can find out _________.

The third kind studies the weather. These satellites watch clouds and strong winds _______ across the earth. They warn countries to make preparations _______ very bad weather is coming.

The last kind is used for communication. Telephone calls _______ countries can be sent by these satellites. Some can carry hundreds of calls at _______ same time. The call _______ to the satellite, then the satellite sends it to a station in the country and this country is being phoned. These satellites also carry pictures. ________ can receive and send about eight programs at a time.

【推荐2】David is a _________ boy and he is crazy about space. For him, a space camp is _________ than any other camp in the world.

At the age of seven, David had his first astronaut training _________. He and his parents _________ to a Family Space Camp. They had a taste of what it was like to travel in space. Everything was magical. _________ excited David was!

David _________ many space camps in the last eight years. Last month, he went to _________ new space camp. He found _________ interesting to join in all of the training programs. There he was often asked _________ he liked space camps so much. “Because I feel like a real astronaut in the space camp, and I don’t even need to leave the earth, “ he said.

These experiences have a great influence __________ his life. Now David 10 space science. He has decided to be a space engineer in the future.

【推荐3】Every morning, you get up, wash your face, brush your teeth, eat breakfast and get ready for your day. These daily actions are ________ common that you don’t think about them much. But what if you were in space? There is no gravity there, so things are not as ________ as they are on Earth. When you drop something, it floats away slowly in the air. This means that astronauts ________ just put down a tool. They need to tie it down. In space, water breaks into small drops and hangs in the air. And ________ do astronauts drink?

Well, astronauts eat and drink ________ in space. They have special plates for their food. Besides, special bags ________ for their drinks.

Sleep is also different in space. Astronauts tie ________ to the wall so that they don’t float around when they are sleeping. Since they have to work hard, they need to get ________ rest. The sun rises and sets so often that it can be confusing(令人困惑的). The astronauts use alarms and sometimes music ________ themselves up. Exercise is important for astronauts ________. Since there is no gravity and astronauts float instead of walking or ________, they have to exercise on special machines every day to keep healthy. No one ________ to become ill in space and exercise helps them a lot.

________, life is not completely full of hard work in space. When they are not working or exercising, there is a little time ________ fun. They watch movies, read the news and contact family members and friends. The astronauts that work on the International Space Station can even connect to ________ Internet.