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完型填空
Many animals use some kinds of“ language ”．They use signals(信号)and the signals have meanings(意义)．
For example, when a bee has found some food, it goes 1 its home．It is 2 for a bee to tell 3 bees where the food is by speaking to 4 , but it can do a little dancing, This tells the’－bees where the food is and 5 it is．
Some animals show how they feel by making sounds．It is not difficult to tell if a dog is angry 6 it barks(吠)．
Birds make several different sounds and 7 has its own meaning．Sometimes we humans(人类)make sounds 8 ．We make sounds like “Oh!” or “Oueh!” to show how we feel about something or when we 9 something on our feet．
We have languages．We have words．These words have the meanings of things, action(行动)，feeling or ideas．We are able to give each other information(信息)，writing down words．We can 10 what has happened or send messages to people far away．
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