Unit 13 We're trying to save the earth! 讲义-2023-2024学年人教版九年级英语全册

( U nit 13 We ’ re trying to save the earth! ) ( 知识重难点 ) 1. 教学重点：（1）能听懂谈论环境污染与保护的对话； （2）能阐述保护环境的措施方法。 2. 教学难点：回顾并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。 重点单词及短语： litter bottom fishman coal ugly advantage cost wooden plastic takeaway bin cruel shark harmful chain ecosystem industry law scientific afford reusable recycle napkin gate bottle president inspiration work metal creativity transportation 1. save the earth 拯救地球 2. noise pollution 噪音污染 3. solve the problem 解决问题 4. cut down 减少 5. be good for 对……有益 6. go shopping 去购物 7. make a difference 起作用 8. hear of 听说 9. cut off 割掉 10. not only...but also... 不但…而且… 11. be harmful to 对……有害 12 .at the top of the food chain 在食物链顶端 13. worse and worse 越来越糟 14. take part in 参加 15. not...any longer 不再 16. begin with 以……开始 17. turn off 关掉 18. pay for 付费；付出代价 19. add up 把……加起来 20. take action 采取行动 21. throwaway 扔掉；抛弃 22. put sth. to good use 好好利用某物 23. pull...down 拆下；摧毁 24. upside down 上下颠倒；倒转 25. win a prize 获奖 26. set up 建立 27. be known for 因……而闻名 28. look like 看起来像 29. bring back 恢复；使想起；归还 30. in the ocean’s system 在海洋生态系统 用法集萃： 1. try to do sth. 努力做某事 2. play a part in doing sth. 参与做某事 3. used to do sth. 过去常常做某事 4. instead of doing sth. 代替做某事 5. start doing sth. 开始做某事 6. remember to do sth. 记得去做某事 7. can't afford to do sth. 负担不起做某事 8. by doing sth. 通过做某事 9. be good at doing sth. 擅长做某事 10. plan to do sth. 计划做某事 11. hope to do sth. 希望做某事 12. need o do sth. 需要做某事 Section A 1. noise pollution 噪音污染 (1)noise此处作名词，意为“噪音”。 If you make noise at night, my dog will bark. 如果