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据抚州新闻网2016年10月26日报道,金溪至抚州高速公路建成后抚州东外环高速公路项目正有条不紊的推进中.高速公路的建设与通行涉及到许多化学知识.
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阅读下面的短文,在空白处填入适当单词,或填入括号中所给单词的正确形式(每空不多于3个单词)

    The first robots were invented in the1920s. Since then robots ____ (appear) in many American films. In some films, they are stronger, faster and cleverer ____ people.

    In real life, robots are ____ (main) used in factories. They do some dangerous and difficult jobs for humans.

    Robots also help disabled(残疾的) people, for example, blind people. Today many blind people have a guide dog ____ (help) them. In the future, guide dogs might be robot dog.

    One kind of robot guide dog has ____ (wheel). It moves in front of the owner. It is very clever. It knows the speed of its owner's walk. The owner ____ (wear) a special belt(带子). This belt sends instructions ____ the owner from the dog, such as "Stop here", "Turn left" or "Turn right".

    In the United States, another kind of robot helps disabled people to take care of ____ (them) in their daily life. The robot hears the sound of its owner's voice. It follows instructions such as "Turn the page" or "Make a cup of coffee".

    Robots are also used in American hospitals. They can do simple jobs. At one hospital, for example, a robot takes meals from the kitchen to patient's rooms. It ____ gets lost because this robot has a map of the hospital in its computer memory.

     ____ robots can help people in many ways, they will never take the place of humans.