In our lives we can see more and more robots in different places. They are helpful and do lots of things. They can not only work indoors, but also outdoors. They can even do tasks that nobody wants to do.

One special robot can help in fast food restaurants. At first, the robot only made hamburgers. But workers thought it could do more. Now, the robot can make many kinds of food like French fries and fried onions. It works faster than people because it can do more tasks at the same time. So it saves a lot of time and work. Also, the robot knows exactly when the food is ready. Workers are happy that they don’t have to do them, especially at night.

Another special robot can even do tasks that are difficult or dangerous. It is so big that it can carry things of up to 40 kilograms and can reach as high as ten metres, too. It helps workers fix railway lines (维修铁路线路). That’s because electricity can make some workers in danger and even fall sometimes. The robot can help them solve these problems and makes their lives much safer.

These unusual robots seem to be doing good jobs, but they still need help from people. People control robots with a computer or a remote control and a VR headset (虚拟头戴式耳机). Scientists say robots can help in more places and play a more important part in the near future.

Since computers were invented in the USA in the 1950s, they have     21     very important in many areas of work and leisure. There is no doubt that computers are very     22     in the technology and business. In space, computers have been used to control the speed and direction of a spaceship.     23     the help of computers, doctors can find diseases easily and solve other problems. For example, tiny computers which are inside patients’ bodies can keep     24     hearts beating normally. In factories, robots are     25     by computers that are like human brains. They can do work     26     is dangerous to humans. In business, computers are used to place and cancel orders. They are also making the workplace     27     and better.

Since the Internet came into being, people’s     28     at home have been changed, too. More and more people have     29     computers that are used to play games and watch movies. Thanks to the Internet, people can do shopping and do business at home. Instead of writing letters on paper, people communicate by     30     emails and chatting online. The whole world is connected. The Internet is making the world smaller, like a village.