Unit 13 We are trying to save the earth. Section A 3a-3b 课件2022-2023学年人教版九年级英语全册

Unit 13 We are trying to save the earth. Section A 3a-3b Learning aims: 1.掌握以下重点词汇、短语:shark, fin, cruel, harmful, be harmful, to at the top of , the food chain,industry, law, scientific, take action。 2.通过自己阅读理解课文大意。 3.能体会到从我做起,增强保护野生动物保护生态环境的意识。 shark fin cruel harmful be harmful to at the top of chain the food chain ecosystem industry law scientific n. 鲨鱼 n. (鱼)鳍 adj. 残酷的;残忍的 adj. 有害的 对......有害的 在......顶部或顶端 n. 链子;链条 食物链 n. 生态系统 n. 工业;行业 n. 法律;法规 adj. 科学上的;科学的 New words 1. Have you ever seen a shark(鲨鱼)? 2. What do you know about sharks? 3a.Read the passage about sharks and complete the fact sheet below. Save the Sharks! Many have heard of shark fin soup. This famous and expensive dish is especially popular in southern China. But do you realize that you're killing a whole shark each time youenjoy a bowl of shark fin soup? When people catch sharks, they cut off their fins and throw the sharks back into the ocean.This is not only cruel but also harmful to the environment. Without a fin, a shark can no longer swim and slowly dies. Sharks are at the top of the food chain ip the ocean's ecosystem. If their numbers drop too low, if will bing danger to all ocean life, Many believe that sharks can never be endangered because they are the strongest in their food chain. But in fact, around 70 million sharks are caught and traded in this industry every year. The numbers of some kinds of sharks have fallen by over 90 percent in the last 20 to 30years. Environmental protectiog groups around the world, such as Wild Aid and the WWF, are teaching the public about "finning”. They have even asked governments to develop laws to stop the sale of shark fins. So far, no scientific studies have shown that shark fins are good for healtih, so why eat them? Help save the sharks! 1. This is not only cruel, but also harmful to the environment. 这种做法不仅残忍,而且对环境有害。 not only … but also … 不仅……而且…… 连接两个并列的主语就近原则。 e.g. Not only Tom but also Tim is good at math. 2.cruel /adj. 残酷的; 残忍的 e.g. I think it