In real life, robots are mainly used in factories. They do many different jobs. Usually these jobs are too       , difficult or boring for humans.

Robots also help disabled people and people who cannot look after       . For example, scientists are making a robot to help        people. Now many of them have a dog to help them. The dog is called a guide dog. In the future, guide dogs might be robot dogs.

One robot dog is called Meldog. It has wheels. It usually “walks”        its owner. It is very clever. It knows the speed of its owner’s walk. Meldog talks to its owner by       . The owner wears a special belt. This belt         instructions to the owner from Meldog such as “Stop here”, “Turn left” and “Turn right”.

In the United States, another        of robot helps disabled workers. This robot, called Kilroy, helps disabled computer operators. The robot         the sound of its owner’s voice. It follows instructions such as “Turn the page” and “Make a cup of coffee”.

Robots are also used in American       . They can do simple jobs. For example, they shave (刮脸) patients and brush their teeth and take meals from the kitchen to patients’ rooms. It never gets lost        this robot has a map of the hospital in its computer memory.

1.A. interesting B. strange C. dangerous     D. safe

2.A. others        B. another         C. them     D. themselves

3.A. deaf   B. blind     C. old         D. sick

4.A. in front of  B. behind  C. under   D. above

5.A. television   B. radio     C. loudspeaker D. mobile telephone

6.A. posts B. writes   C. reads    D. sends

7.A. type   B. size        C. set         D. double

8.A. guesses      B. thinks    C. hears    D. sees

9.A. cinema       B. hospitals        C. museum        D. theatre

10.A. until          B. before  C. because         D. whether

Someone is singing next door, but you feel unhappy because her singing is terrible. So you think she is just making noise. We know that too much noise makes people feel terrible.
Scientists are still trying to find out more about noise, but already it is known that a noise of over 85 decibels(分贝) can make some people tried and anxious(焦虑的).
In the past we thought only workers in very noisy places became deaf easily. Today, scientists believe that 10% of all workers in Britain become deaf in their work.
There are also new dangers from noise. Pop music, for example, can reach 120 decibels when it is played loudly five feet away! Only a plane can make such loud noise when it takes off.
There was an experiment in the United States. Some people would be given a lot of money if they stood below a jet when it was taking off over their heads. No one got the money after the jet flew past because all of them died in the noise.
People can’t pay their attention on what they are doing when there is much noise. Workers in noisy offices, for example, do their work more slowly than workers in quiet offices. Another study shows that workers in factories can do dull(枯燥的) jobs better when lively music is played for them.