The first robots were invented in the1920s. Since then robots {#blank#}1{#/blank#} (appear) in many American films. In some films, they are stronger, faster and cleverer {#blank#}2{#/blank#} people.

    In real life, robots are {#blank#}3{#/blank#} (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 {#blank#}4{#/blank#} (help) them. In the future, guide dogs might be robot dog.

    One kind of robot guide dog has {#blank#}5{#/blank#} (wheel). It moves in front of the owner. It is very clever. It knows the speed of its owner's walk. The owner {#blank#}6{#/blank#} (wear) a special belt(带子). This belt sends instructions {#blank#}7{#/blank#} 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 {#blank#}8{#/blank#} (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 {#blank#}9{#/blank#} gets lost because this robot has a map of the hospital in its computer memory.

     {#blank#}10{#/blank#} robots can help people in many ways, they will never take the place of humans.

    Technology（科技）makes our life easier and better than before. Many think it is great. For most people, technology means you can do {#blank#}1{#/blank#}(much) in less time and have fun while doing it. Here's one example. People {#blank#}2{#/blank#}( make) letters with smoke from planes. People can see the letters from the streets, buildings and places far {#blank#}3{#/blank#} the sky. It's called skywriting. It began in England. In 1922, the {#blank#}4{#/blank#}(one) words written in the sky over America were "Hello USA". That year skywriting started to be used for advertising. Then it kept popular for a long time. It's difficult {#blank#}5{#/blank#}(put) a message into the sky. The pilot must count numbers to know when to turn the smoke on and off. {#blank#}6{#/blank#} wind moves the letters, the pilot should watch their shadows on the ground or their shapes in the sky. If it's a {#blank#}7{#/blank#} (snow) day, the pilot in the plane can't see the white letters, {#blank#}8{#/blank#} we can see them in the sky on the ground. People are so {#blank#}9{#/blank#} (create) to have romantic time! However, for some people, technology is not just for fun. It can change their {#blank#}10{#/blank#}(life). Most believe tomorrow's technology comes out right side up!

    Strangely enough, some inventions are lost {#blank#}1{#/blank#} people can't imagine their {#blank#}2{#/blank#} (valuable). A use may need to be "invented" along with the invention. An example is the fax machine. The technology for faxing {#blank#}3{#/blank#} (invent) in the 1800s. It took more than one hundred years, however, for the fax to be seen as useful. In 1843 Alexander Bain invented a machine to {#blank#}4{#/blank#} (electrical) transmit（传输） writing. At first, it was considered {#blank#}5{#/blank#} (use) since few people thought there was {#blank#}6{#/blank#} need for transmitting writing over {#blank#}7{#/blank#} (wire). Eventually the value of the invention was realized, and it was improved {#blank#}8{#/blank#} office use. By the 1980s, the fax machine became a piece of standard {#blank#}9{#/blank#} (equip) in offices. The reason is {#blank#}10{#/blank#}it can very quickly transmit written documents. Who knows how many other inventions just need to be recognized as valuable?