点评一下英语演讲稿

我要参加英语演讲比赛，稿子自己写，写了一些，很短，想再写一些，可是就是没有词汇了。
请懂英语的各位帮忙改改语法错误，最好能再加一些。不要求太高深太复杂的词汇。

稿子如下：
As we can see, in recent years, the world has been developed quickly. People use modern machines and go to work by car. Many tall buildings are built and the streets become very busy, but at the same time, environment pollution has become heavier and heavier. Water pollution makes the rivers and lakes dirty, noise pollution makes us talk louder and louder and air pollution affects all living things in the world. The sky becomes gray, because the smog is so thick that it is like a quilt over the cities; fishes can’t live in the rivers because of the dirty water. So we must do something to fight pollution.
Though I can’t clean the whole river or keep dirty smoke out of the air, I can do many other things. Just like go to school by bus and don’t throw rubbish on the ground and so on. If I can do it, you can do it, too. If everyone helps to fight pollution, there will be less pol

点评一下 请帮忙找一下一篇英语演讲稿 帮忙修改一下这篇英语演讲稿 翻译一下这篇英语演讲稿,谢谢! 英语演讲稿 英语演讲，帮忙翻译一下 英语演讲主持过程中的连接词和点评词（急） 谁能帮我修改一下这篇英语演讲稿，周五之前 谁有三分钟英语演讲稿，拜托打一下，好么？谢谢 帮我修改一下我自己写的英语演讲稿