Разговорные темы по английскому языку. Яшина Е.А. - 83 стр.

         drum (n)                                      a glass top
         expose (v)                                    powder (n)
         to project an image                           dust (v)
         revolve (v)                                   attract (v)
         destroy (v)                                   stick (v)
         transfer stage

         Listening

         1. Listen to the conversation and try to unerstand the main principles of how a
         photocopier works.
         Fill in the gaps with the most suitable word or expression from above. Put the
             verbs in the correct form.

         -    A copy machine works on the principle of __________________ .
         -    The scientists try to make use of___________________ .
         -    What happens when you ____________ the start-button? – A lot of things
              are going on inside the photocopier.
         -    The drum inside the photocopier ________________ .
         -    Put your __________ on the ______________ to make its copy.
         -    When the light moves over the document the original ______________ to it.
         -    The _________ revolves, giving a negative electric ___________ first.
         -    The image is ______________ onto the drum as it revolves.
         -    The electric charge _____________ the light.
         -    The powder, which is negatively charged, _____________ onto the drum and
              it _______________ to the charged parts of the drum, which are the marks
              on the document.
         -    The sheet of copy paper is positively charged and in this way it attracts the
              powder. So, the ____________ comes.

         Listen to the talk again and check up your answers.


         Comprehension check

         1.   How does a photocopier work?
         2.   How do the marks get onto the paper?
         3.   What happens when you press the start-button?
         4.   What does the light do?
         5.   How does a paper come out of the photocopier?




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