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.
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