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根据短文内容及首字母提示，填写所缺单词，将答案按序号填入下面表格内。 Air is very important to

2020-10-05 

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根据短文内容及首字母提示，填写所缺单词，将答案按序号填入下面表格内。 Air is very important to everything that lives. But the air we breathe is g 1 dirty. People all over the world
are looking for w 2 to make it clean again.
Have you e 3 watched the smoke from chimneys rising high in the air? Have you s 4 the smoke from
cars and trucks on roads or the smoke from planes? The smoke is not g 5 to breathe. If we want to keep
well and strong, we need to breathe c 6 air.
W 7 more and more factories everywhere and more and more cars, trucks and planes, it is getting harder and harder to do with the air p 8 .
Scientists have a 9 found ways to stop or slow down some of the things that make the air dirty. They
will not stop working u 10 we have clean air again. We hope our environment will be better and better. 参考答案： 1. getting 2. ways 3. ever 4. seen 5. good
6. clean 7. With 8. pollution 9. already 10.until

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