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”. Teachers, writers and students _______ computers to do lots of work. At the beginning, people didn’t know _______ to use computers, _______ now we can’t live without（没有）them. There are some writers. They say that they can’t work _______ computers. They use computers to write novels. Teachers use them to help teaching. Students use them to study and children use them to _______ games. Computers are very useful and _______.

The important thing is that we can use _______ to go online. We can use them to go on the Internet and find _______ useful information. We can _______ chat with others, make travel plans and ________ to music with computers.

【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.