【重点词组或短语】

1. at the bottom of the river 在河床底部 2. be full of rubbish 充满了垃圾

3. throw litter into the river 把垃圾扔入河中

4. play a part in cleaning it up 尽一份力把它清理干净

5. land pollution 土地污染

6. fill the air with black smoke 空气中充满黑烟

7. cut down air pollution 减少空气污染 8. make a difference 产生影响

9. shark fin soup 鱼翅汤

10. at the top of the food chain 处于食物链的顶端

11. in the last 20 to 30 years 在最近的20到30年间

12. develop laws 建全法律

13. take part in 参加

14. cant afford to do sth. 负担不起做某事

15. take action 采取行动 16. add up 累加

17. use public transportation 使用公共交通 18. recycle books and paper 回收书和废纸

19. ride in cars 开车出行 20. throw away 扔掉

21. put sth. to good use 好好利用 22. pull...down 拆下

23. an old boat turned upside down 一艘倾覆的旧船

24. be an inspiration to sb. 對某人来说是一种鼓舞

25. set up a website 建立一个网站

26. a “metal art” theme park 一个“金属艺术”主题公园

27. be known for 因……而闻名 28. not only...but also... 不仅……而且……

【重难点句子】

1. 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。

2. Sharks may disappear one day if we do not do something to stop the sale of shark fins. 如果我们不采取措施来阻止这种鱼鳍买卖，鲨鱼可能有一天会灭绝。

3. This method is not only cruel， but also harmful to the environment.

这种方法不仅残酷，而且对环境有害。

4. The numbers of some kinds of sharks have fallen by over 90 percent in the last 20 to 30 years.

在最近的20年到30年的时间里，某些种类的鲨鱼的数量已经下降了90%。

5. We cant afford to wait any longer to take action！

我们不能再等待更长的时间再来采取行动！

6. Have you ever thought about how these things can actually be put to good use？

你曾经考虑过怎样把这些东西充分利用起来吗？

7. Not only can art bring happiness to others， but it also shows that even cold， hard iron can be brought back to life with a little creativity.

不仅艺术能给其他人带来快乐，这也显示了只需一点点创意，冰冷、坚硬的铁也能重获生机。