资源简介 (共26张PPT)We’re trying to save the earth!Unit 8Section A 3a-3bWhat animals are mentioned in the video 情 境 导 入Lead-inSHARK情 境 导 入Lead-inTalk about what you know about sharks.They are at the top of the food chain in the ocean’s ecosystem.In movies, they are often seen as cruel killers.SHARKDo you think sharks are endangered Why 情 境 导 入Lead-in单击此处添加标题文本内容Save the sharkWhat can we know from the titleand the picture The shark may be __________ and we need to save it.The passage is about the ______.shark新 课 探 究While-readingendangeredFast readingMatch each paragraph with its main idea.Sharks are endangeredHelp save the sharks新课探究情境导入课堂小结Shark fin soupFast readingMatch each paragraph with its main idea.Sharks are endangeredHelp save the sharksShark fin soup新课探究情境导入课堂小结Fast readingMatch each paragraph with its main idea.Help save the sharksShark fin soupSharks are endangered新课探究情境导入课堂小结Fast readingMatch each paragraph with its main idea.Sharks are endangeredShark fin soupHelp save the sharks新课探究情境导入课堂小结Read Para 1 and answer the following questions.What does it mean when people enjoy a bowl of shark fin soup Save the Sharks!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 They are killing a whole shark.Careful reading新课探究情境导入课堂小结新课探究情境导入课堂小结Read Para 2 and answer the following questions.1. What do the numbers “70 million” and “90 percent” mean 2. What causes sharks in danger 3. What did the writer think of it 70 million sharks are caught and traded.The number of sharks have fallen by over 90 percent.Sharks are endangered now. Why First, people ___________ sharks.Next, people ________ _______ their fins.Then, people _________ the fins _________ the shark fin soup.Finally, people _______ them ________ _______ the ocean.2. What causes sharks in danger 新课探究情境导入课堂小结catchcut offthrow back intocook into3. What did the writer think of it This is not only cruel, but also harmful to the environment.causes : People’s behavior of cathing sharksThis is not only cruel, but also harmful to the environment.Why is shark finning considered cruel Why is shark finning harmful to the environment It causes sharks to die a slow and painful death.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.新课探究情境导入课堂小结Harms of killing sharksIf shark numbers drop too low, how does it bring danger to all ocean life If shark numbers drop too low, how does it bring danger to all ocean life What if sharks disappeared What if sharks disappeared Tipsalgae 海藻sunlightoxygen 氧气ill fishesYou see, sharks survive by feeding on smaller fishes that feed on the smallest fish. And a lot of these smallest fish love to eat algae sailing on top of the ocean. So if sharks disappear out of this food chain, then the population of smaller fish will grow rapidly which will then feed on the algae-eating fishes to a point they might go extinct too. Then, with no one to clean up the algae, it will flourish and might even cover the ocean obstructing the sunlight to enter the water. And as direct sunlight is how corals get their oxygen, without it, they won’t be able to survive, leading to loss of habitat and eventually resulting in the mass extinction of many marine species.Another way sharks help the aquatic system is by feeding on the weak or ill members of marine life. Yes, that’s because if these weak and ill members continue to thrive, it will weaken the larger population by potentially spreading illness to the other marine animals.Plus, when these weaker members of the species reproduce, it weakens the genetic make up of the new generation, putting them at risk of extinction.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!“割鳍”行动Read Para 3 and fill in the chart.新课探究情境导入课堂小结Help save the sharks! WildAid and the WWF teach the public about “finning”governments develop laws to stop the sale of shark finspublic don't eat shark fin help save the sharksdevelop laws to stop the sale of shark finsdon't eat shark finhelp save the sharksteach the public about “finning”Careful ReadingRead Para.3 and answer the questions.1. What does the term “finning” refer to in this context Is shark fin really good for health No, so far, no scientific studies have shown that shark fins are good for health.新课探究情境导入课堂小结新课探究情境导入课堂小结hear of; kill a whole shark; a bowl of shark fin soupcatch; cut off; throw … back intono longer swim; slowly diefood chain; ocean’s ecosystemdanger; all ocean lifearound 70 millions (are caught and traded; industry)over 90 percent (kinds of sharks; have fallen by; 20 to 30 years)develop lawsteach the public about “finning”don't eat …; help save …Shark fin soupHelp save the sharksgovernmentsWildAid; the WWFpublicSharks are endangeredcausesharmsfactsRetellingFill in the blanks with the words in the box.3bMany 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.whenso3. 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.butAlthoughif新课探究情境导入课堂小结Discuss and finish the mind map .As for middle school students , what can we do to save the sharks Save me,please!ask the government to develop lawsstop the sale of shark finsstop eating themrefuse to drink shark fin soupwrite to the government to close the factories where shark fins are processedmake some videos to spread the importance of saving sharks新 课 探 究Post-reading单击此处添加标题文本内容新课探究情境导入课堂小结Except sharks, there are also many other wild animals are ingreat danger, what can we do to protect them Deep thinkingMy slogans(口号）新课探究情境导入课堂小结单击此处添加标题文本内容新课探究情境导入课堂小结1. This is not only cruel, but also harmful to the environment.be harmful to= do harm to 对……有害e.g.Greenhouse gases are ___________ to the environment.(harm)2. The numbers of some kinds of sharks have fallen...the numbers of 为the number of 的复数拓展：the number of +可数名词复数+谓语动词用单数（...的数量）a number of + 可数名词复数+谓语动词用复数（大量的）e.g. The number of bags __________forty.A large number of young adults ____ _______ to the city so far. (move)Language pointsharmfulhave movedis课 堂 小 结SummaryShark fin soupHelp save the sharksgovernmentsWildAid; the WWFpublicSharks are endangeredcausesharmsfactsTHANK YOU 展开更多...... 收起↑ 资源预览 当前文档不提供在线查看服务，请下载使用！
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