题目内容：

Some things can carry(携带) messages, for example, a sign（标志） at the bus stop helps you to know which bus to take. Signs on the door tell you where to go in or out. Have you ever noticed that there are a lot of signs around you and that you receive messages from them all the time?

People can communicate on many other ways. An artist can use his drawing to tell about beautiful mountains, about the blue sea 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（杂志）, TVs, radios（广播） and films all help us to communicate（交流） with others. They all help us to know what is going on in the world and what other people are thinking about.

1. What can help you if you want to know which bus to take?

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2. What do the signs on the door do?

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3. People can communicate in many other ways, can’t they?

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4. What can help us to communicate with others?

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5. What do they help us to do?

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