文章。。? 追问: 不好意思忘了。 The earth is our home and we must take good care of it. That is to say we must keep the land, air and water clean. But man has produced a lot of pollution on the earth since he first made a fire, washed his clothes in the river and threw waste or dirty on the ground. Many years ago, pollution was not so serious because there were not so many people. There was enough clean air, land and water. When the land or the river was dirty in one place, man moved to another place. Man now, although, is slowly polluting the whole world and there is neither enough clean air, nor clean land, nor clean water. The more people there are in one place, the worse environment they maybe have. Perhaps you are afraid it is endless for people to produce pollution.Luckily, we are glad to tell you that people have come to know the danger of pollution and more and more people are working hard to protect our earth. 回答: 地球是我们的家,所以我们要照顾好它。那就是说我们要保持土地,空气和水的干净。但是人们已经在地球上制造了许多的的污染,自从我们第一次生火。在河里洗衣服和在地上随意扔垃圾。很多年以后,污染将不会太严重,那是因为地球上已经没有多少人了。 以前还有充足的干净的空气。当一个地方的土地、河水被污染的时候,人们搬到另一个地方。人们现在尽管在很慢的污染,但现不在有太多的清新空气、干净的土壤、清澈的河水。一个地方的人越多,那么这个地方的环境就会越恶劣。 也去你在恐惧人们无止境的制造污染,我们很高兴的告诉你,人们已经意识到(环境)污染的危害,并且现在越来越多的人正在努力的保护我们的地球。