同学们是不是有着聪明的头脑呢?能不能牢牢掌握九年级上册英语Unit13主要句型呢?希望同学们好好利用这篇文章，以便于供大家参考和运用!

1. Even the bottom of the river was full of rubbish.

即使河底都充满垃圾。

2. Everyone in town should play a part in cleaning it up.

城里的每个人都应当尽一份力把它清理干净。

3. The air is badly polluted because there are too many cars on the road these days.

空气被严重污染因为如今路上的汽车太多了。

4. To cut down air pollution, we should take the bus or subway instead of driving.

为了减少空气污染，我们应当乘坐公汽或地铁而不是开车。

5. I used to be able to see stars in the sky.

我过去能在天空中看到星星。

6. The air has become really polluted around here. I’m getting very worried.

这儿的空气真的已经被污染了，我非常担心。

7. No scientific studies have shown that shark fins are good for health.

没有科学研究说明鱼鳍对人们的健康有好处。

九年级上册英语Unit13主要句型就是告诉同学们能正确运用现在进行时，现在完成时，被动语态，情态动词和used to 句型，初中英语词汇知识以及人教版初中英语词汇积累送给大家！