Question

Air is very important to everything that lives. But the air we breathe is g小题1:___ dirty. Peopl.

Air is very important to everything that lives. But the air we breathe is g小题1:___ dirty. People all over the world are looking for w小题2:___ to make it clean again.Have you e小题3:__ watched the smoke from chimneys rising high in the air? Have you s小题4:__ the smoke from cars and trucks on roads or the smoke from planes? The smoke is not g小题5:___ to breathe. If we want to keep well and strong, we need to breathe c小题6:__ air.W小题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小题8:___.Scientists have a小题9:__ found ways to stop or slow down some of the things that make the air dirty. They will not stop working u小题10:__ we have clean air again.

Answer 1

小题1:.getting 小题2:ways 小题3:ever 小题4:seen 小题5:good 小题6:.clean 小题7:With 小题8:pollution 小题9:already 小题10:until

小题1:本句的含义为我们呼吸的空气正在变脏，故本句空格处填变的现在分词形式getting。 小题2:本句的含义为全世界的人都在寻找使空气干净的方法，故本句空格处填方法的单词ways。 小题3:本句的含义为你曾经看过烟囱里的烟冒到空气中，故本句空格处填曾经的单词ever。 小题4:本句的含义为你看见汽车或飞机所排放的烟，故本句空格处填看见的过去分词seen。 小题5:本句的含义为呼吸排放到空气中的烟是不好的，故本句空格处填好的单词good。 小题6:本句的含义为我们需要呼吸清洁的空气，故本句空格处填清洁的单词clean。 小题7:本句的含义为随着越来越多的工厂和汽车，飞机，处理空气污染越来越难，故本句空格处填伴随的单词With。 小题8:本句的含义为处理空气污染越来越难，故本句空格处填污染的单词pollution。 小题9:本句的含义为科学家已经找到阻止或减慢空气污染的方法，故本句空格处填已经的单词already。 小题10:本句的含义为直到我们有清洁空气的时候，他们才停止采取措施，故本句空格处填直到……为止的单词until。