根据短文内容及所给首字母提示写出所缺单词, 并将完整单词填在下面对应题号后的横线上。 Air is very important to everything that lives.

根据短文内容及所给首字母提示写出所缺单词, 并将完整单词填在下面对应题号后的横线上。
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(烟囱) 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 healthy 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 taken actions 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.
1. 2. 3. 4. 5.
6. 7. 8. 9. 10. 1.getting 2.ways 3.ever 4.seen 5.good

(答案→)1.getting 2.ways 3.ever 4.seen 5.good 解析：1.空气对所有的生物都很重要。但我们呼吸的空气正在变脏。Get是系动词，因为“变得”；此处是现在进行时。故填getting。2.世界各地的人们正在寻找清新空气的方法。ways to do sth.“做某事的方法”。故填ways。3.你曾经看到过从烟囱冒出来的烟吗？ever“曾经”，表示强调。故填ever。4.你看到过汽车尾气吗？句子是现在完成时，故填seen。5.这些气体不适合吸入人体。sth. is good to do...“某物适合被用作......。”故填good。6.我们要保持健康，就得呼吸新鲜空气。故填clean。7.随着工厂和车辆越来越多，......。介词with有“随着”的意思。故填With。8.对付空气污染变得越来越难了。air pollution“空气污染”。故填pollution。9.科学家已经采取措施来阻止......。already“已经”。故填already。10.科学家将不懈努力，直到空气变干净。not ...until...“直到......才......”。故填until。

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