1. No one can live without water or air.

1. 没有人能离开水和空气生存。

2. We should stop factories from producing harmful gases.

2. 我们应该阻止工厂生产有害气体。

3. Many rivers and lakes are seriously polluted.

3. 很多河流湖泊已经受到严重污染。

4. Without the shade from trees, Earth would get too hot to live on.

4. 没有了树荫,地球将会变得太热而不能生存。

5. We need to protect Earth because it is our home.

5. 我们需要保护地球因为它是我们的家。

6. Discharge pipes directly take pollutants away from the plant into the river.

6. 排泄管道直接将污染物从工厂排入河流。

7. Keep clean.

7. 保持清洁。

8. We should plant more and more trees in order to live better and more healthy in the future

8. 为了将来我们的生活过得更好、更加健康,我们应该种更多的树。

9. They throw rubbish into rivers , too.

9. 他们还乱扔垃圾到河流理去。

10. Even worse, they pour dirty water in to rivers.

10. 更糟糕的是他们排放污水到河流里。