阅读短文，并完成后面的任务。
①_____
THE Earth is about 4600 million years old. Many of the things that we have done are good,
but many more are not good for the Earth.
Pollution is ②(地球上的一种严重问题). In big cities cars and buses have polluted the air.
Many people in cities now have very bad health problems.
③(工厂也对土地和水造成了污染). As a result, many rivers and lakes are now polluted.
All over the world, people have cut down millions and millions of trees. Did you know many
kinds of animals and plants are now disappearing (消失)? In particular, trees are very important
④because they produce oxygen (氧气) and control the climate.
Now, many people are beginning to take these problems seriously. Fhey are making wind
generators (发动机) and planting new trees. There is a group in our class that picks up the garbage
at school. Whether the weather is hot or cold we always do it. ⑤I think we are settinS a Sood
example to everyone else.
I hope, in the future, the sky can be clearer, the water cleaner, and the land greener. Then both
people and animals can have a greener Earth.
1. 请在①处给出文章的题目。
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2. 请把②处的汉语翻译成英语。
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3. 请把③处的汉语翻译成英语。
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4. 请把④处的画线部分翻译成汉语。
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5. 请把⑤处的画线句子翻译成汉语。
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