i used to live in a small town with trees all around. there was no tall building and the only street was narrow. just outside the town， there was a river. you can see different kinds of fish swimming in the clear water. people here lived a simple life.
great changes have taken place here. you can see tall buildings， big department stores and factories everywhere. different kinds of cars and buses are running in the big streets. but with the development of the industry， we have fewer trees. air and water pollution is becoming more and more serious.
we must do something to stop pollution and make our town even more beautiful.
我過去住在一個小城鎮(zhèn)，周圍都是樹。沒有高大的建筑物，的街道是狹窄的。就在城外，有一條河。你可以看到不同種類的魚在清澈的水中游泳。這里的人們過著簡樸的生活。
這里發(fā)生了巨大的變化。你可以看到高樓大廈，大百貨公司和各地的工廠。不同種類的汽車和公共汽車在大街上奔跑。但是隨著工業(yè)的發(fā)展，我們的樹越來越少了。空氣和水污染變得越來越嚴重。
我們必須做點什么來阻止污染，使我們的城市更美麗。
great changes have taken place here. you can see tall buildings， big department stores and factories everywhere. different kinds of cars and buses are running in the big streets. but with the development of the industry， we have fewer trees. air and water pollution is becoming more and more serious.
we must do something to stop pollution and make our town even more beautiful.
我過去住在一個小城鎮(zhèn)，周圍都是樹。沒有高大的建筑物，的街道是狹窄的。就在城外，有一條河。你可以看到不同種類的魚在清澈的水中游泳。這里的人們過著簡樸的生活。
這里發(fā)生了巨大的變化。你可以看到高樓大廈，大百貨公司和各地的工廠。不同種類的汽車和公共汽車在大街上奔跑。但是隨著工業(yè)的發(fā)展，我們的樹越來越少了。空氣和水污染變得越來越嚴重。
我們必須做點什么來阻止污染，使我們的城市更美麗。