3. Cell phones are used to send messages I use the microwaves to heat my food USB are used to store information I use my answering machine to record phone messages
4. DVD players are used for playing movies or music I use my CD player for listening to music The laptops are used for doing schools assignments I use the internet for getting information
5. An IPOD is used to play videos I use the fax for sending letters Robots are used to make people’s job Satellites are used for giving weather’s report
6. We can describe how something is used with either and infinitive or a gerund
7. Using infinitive (to + verb) My computer is used to do homeworks Using gerund (for + verb) My computer is used for doing homeworks Cell phones are used to send messages Cell phones are used for sending messages USB are used to store information USB are used for storing information I use my CD player to listen to music I use my CD player for listening to music Satellites are used for giving weather’s report Satellites are used to give weather’s report