电子课本网 第63页

第63页

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       Many wild animals are in danger, because the environment in which they are living has 
changed a lot. For example, with the development of cities, the air is polluted and the water 
isn't clean any more. Many of them don't have enough food to eat. At the same time, many 
people kill some animals for their fur, skin, teeth and meat.
       As we all know, animals are our friends. Humans can't live without plants or animals. We 
should plant more trees to make homes for wild animals and stop animals from being killed. If 
there are more plants and more wild animals, the world will be more beautiful.