Unit13 Section A 3a～3b课件 2024-2025学年 人教版九年级英语全册

Unit 13 We’re trying to save the earth. Section A 3a-3b　 Watch and say 2. Are sharks endangered animals? 3. What do you think might have caused a fall in the number of sharks? 1. What is the most expensive part of a shark? 4. What do you think of finning? Shark fin. shark fin soup Yes, they are. 3. What do you think might have caused a fall in the number of sharks? I think the reason is that people catch sharks and cut off their fins, then throw them back to the ocean. Without a fin, a shark can no longer swim and slowly dies. They are caught by people. Their fins are cut off. They are thrown back to sea. They can’t swim anymore. They only have to die. 4. What do you think of finning? It’s cruel. Finning is cruel. Do you want to help save the sharks? Let’s read the passage and know more about them. Fast reading Read the passage quickly to match the general idea of each Para. Para.1： Para. 2： Para.3： Actions to stop killing sharks Reason for killing sharks Results of killing sharks Problem Facts Solution Careful reading Save the Sharks! 1. Many have heard of shark fin soup. But do you realize that you’re killing a whole shark each time you enjoy a bowl of shark fin soup? Read Para. 1 and answer the question below. 2. 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 in the ocean’s ecosystem. If their numbers drop too low, it will bring 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 30 years. Careful reading 2. 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 in the ocean’s ecosystem. If their numbers drop too low, it will bring 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 30 years. Careful reading throw back into ... 扔回 in the ocean’s ecosystem 在海洋生态系统中 be endangered 处于濒危中/ in danger bring danger to ... 给...带来危险 be caught and traded 被捕捉和交易 fall by+数字，下降了 fall to+数字，下降到 Careful reading 1. How do people deal with the sharks when they catch them? 2. What will happen if sharks don‘t have their fins? They cut off their fins and throw them back into the ocean. It can no longer swim and slowly dies. enjoy a bowl of shark fin soup = kill a whole shark Careful reading 3. Is the situation of sharks good now? 4. What will happen if the numbers of sharks drop too low? ______ _____ _______sharks are caught and traded in this industry every year. Around 70 million 100% 10% fall by over 90 percent the numbers of sharks drop The numbers of some kinds of sharks have fallen by over 90 percent in the past 20 to 30 years. Careful reading 4. What will happen if the numbers of sharks drop too low ? It will bring danger to all ocean life. Why? Because sharks are at the top of the food chain in the ocean’s ecosystem. Careful reading 5. What are the two opinions about killing sharks? ①This is not only cruel, but also harmful to the environment. ②Many believe that sharks can never be endangered. 6. What does “this” refer to? Cutting off sharks’ fins and throwing them into back the ocean. Saving sharks means saving ourselves! How can we help to save them? Careful reading 1. What are the names of the two Environmental protection groups? 2. What are they doing & what have they done? 3. Are the shark fins good for health？ The WildAid and the WWF. 美国野生救援会(WildAid)是1999年在美国注册的非盈利机构，总部在美国 旧金山，它对濒临绝迹的野生动物提供直接的保护，并且发展许多有创意的计划，以教育大众关于野生动物及生态平衡的重要性。 世界自然基金会(WWF)英文全称为World Wide Fund for Nature。是在全球享有盛誉的、最大的独立性非政府环境保护组织之一，自1961年成立以来，WWF一直致力于环保事业，在全世界拥有超过500万支持者和超过100个国家参与的项目网络。 They are teaching the public about “finning”. They have even asked governments to develop laws to stop the sale of shark fins. No. Because no scientific studies have shown that sharks are good for health. Further thinking: What can we do to protect sharks besides the ways mentioned in Para. 3? 3. Environmental protection groups around the world, such as WildAid 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 health, so why eat them? Help save the sharks! learn science 学科学 scientific(adj) studies 科学研究 a scientist 一名科学家 Read the passage again and fill in the blanks with the words in the box. 3b so although if but when 1. Many people do not realize they are killing a whole shark ______they enjoy a bowl of shark fin 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 fins are good for health. 5. Sharks may disappear one day ____ we do not do something to stop the sale of shark fins. when so but Although if After reading Let’s have a discussion. What can we do to save the sharks? 1. We can stop eating shark fin soup because “ no buying, no killing”. 2. We can make a speech, write an article or make some posters(海报) to appeal(呼吁) to people to save the sharks. 3. We can help create a comfortable environment without pollution for the sharks. 4: Learn as much as you can about sharks. 5: Don’t use shark products. 6: Call on(号召) the people around you to protect the sharks. null 22021.26 null 57337.78 null 38086.535 $$