九年级英语新目标上(新版)Unit13第二课时课件.pptVIP

Unit 13 Were trying to save the earth. Unit 13 Were trying to save the earth. Teaching Aims: to learn and to use new words shark fin cut off method cruel harmful chain ecosystem low industry law reusable afford transportation be harmful to at the top of the food chain scientific take part in turn off pay for take action to review key structures eg. Were trying to save the earth. The river used to be clean. The air is badly polluted. Warming up: Have you ever seen a shark? What do you know about sharks? New Words 1.shark n. 鲨鱼 2. fin n（. 鱼）鳍 3. cut off 割掉；砍掉 4. method n. 方法；措施 5. cruel adj. 残酷的；残忍的 6. harmful adj. 有害的 7. chain n. 链子；链条 8. ecosystem n. 生态系统 9. low adj（. 数量等）减少的；低的；矮的 10. industry n. 工业；行业 11.law n. 法律；法规 12. reusable adj. 可重复使用的；可再次使用的 13. afford v. 承担得起（后果）；买得起 14. transportation n. 运输业；交通运输 15. be harmful to 对...有害 16. at the top of 在...顶部/顶端 17. the food chain 食物链 18. scientific adj. 科学上的；科学的 19. take part in 参加 20. turn off 关掉 21. pay for 支付 22. take action 采取行动 Read the passage. Complete the fact sheet below. Read the passage and fill in the blanks with the words in the box. 1. Many people do not realize they are killing a whole shark________they enjoy a bowl of shark’s fi n soup. 2. Sharks are at the top of the food chain,________if their numbers drop, the ocean’s ecosystem will be in danger. 3. Many think that sharks are too strong to be endangered, ________they are wrong. 4.________there are no scientific studies to support this, a lot of people believe that shark’s fins are good for health. 5. Sharks may disappear one day________ we do not do something to stop the sale of shark’s fins. Key points 1. Many have heard of sharks fin soup. many means many people hear of/about 听说 hear from sb.=receive/get/have a letter from sb. 2. They cut off their fins and throw the shark back into the ocean. cut off 切除 eg. Our phone ha