You speak, write a letter, or make a telephone . Your words carry a message. Peoplecommunicate (交流) with words. But do you know people also communicate without
words? A smile on your face shows you are happy or friendly. Tears (眼泪) in your eyes tell others that you are sad.
When you put up your hands in class, the teacher knows you want to say something or ask questions. You shake (摇) your head and people know you are saying "No". You nod(点头) and people know you are saying "Yes". Other things can also carry messages. For example, a sign at the bus stop helps you to know which bus to take. A sign  on
the door tells you where to go in or out. Have you ever thought that there are a lot ofsigns around you and that you receive messages from them all the time? People cancommunicate in many other ways. An artist(艺术家) can use his drawings to tell aboutbeautiful mountains , the blue seas and many other things. Books are written to tell you about all the wonderful things in the world and also about people and their ideas. Books, magazines, TV, radio and films all help us communicate with others. They can help usto know what is going on in the world and what other people are thinking about.                                Ways of communication