人教版九年级Unit 13 We're trying to save the earth!-Section A 3a—3b-ppt课件-(含教案+素材)-公开课-(编号：72902).zip

The earth is badly polluted. What should we do to save the earth? Lets take action (采取行动) Turn off the lights when you leave a room. Recycle books and paper. Take buses instead of driving cars. There are some animals are endangered. We should do something to protect the animals and the environment! The zoos provide homes for many endangered animals. 1. Have you ever seen a shark（鲨鱼）? 2. What do you know about sharks? Sharks are endangered, read the passage and judge the sentences. Read the first paragraph 1. Sharks fin（鱼鳍）soup is famous and expensive all around the world. 2. We have to kill a whole shark to get a bowl of sharks fin soup. F T Read the second paragraph 1. People cut off sharks fins and throw the sharks back into the ocean. 2. Sharks are in the bottom of the food chain in the oceans ecosystem. T F n. 生态系统 食物链 Read the third paragraph 1. WildAid and the WWF are environmental protection groups in China. 2. Sharks fins are good for health. F F Where shark fin soup is popular Number of sharks caught and traded every year How governments can help Two environmental groups which are against “finning” In southern China 70 million Develop laws to stop the sale of shark fins WildAid and the WWF 3a Read the passage about sharks and complete the fact sheet below. 3b Read the passage again and fill in the blanks with the words in the box. 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 oceans ecosystem will be in danger. when so 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. but Although if adj. 科学上的，科学的 Retell the passage according to the words below. shark fin soup in southern China each time cut off no longer not onlybut also at the top drop be endangered the strongest around 70 million fallen by over 90 percent WildAid and the WWF develop laws scientific studies Unit13 Were trying to save the earth! SectionA(3a3b) 导学案 【学习目标】 1.掌握 method, cruel, harmful, low, industry, law, cut off 2.了解明白以下词汇及短语：shark, fin, chain, ecosystem 3. 能读懂介绍关于保护鲨鱼的文章，完成相应阅读任务，并能正确运用连词或 状语从句改写文章。 通过了解鲨鱼的现状，增强保护濒危动物的意识。 【学习过程】 一、知识链接 1. 预习课本第 99 页的单词和课文内容。 2. 单词、短语翻译 1).鱼鳍买卖 2).鱼鳍汤 3).处于食物链的顶端 4).在最近的 20 到 30 年间 5).全球环境保护组织 6).建全法律 二、自主学习 1. Skimming 速读文章，找出段落大意。 Para 1 Bad things happen when people cut off sharks fins. Para 2 Environmental protection groups have done things to protect sharks. Para 3 Youre killing a whole shark when you enjoy a bowl of shark fin soup. 2.Scanning Task 1 Work on 3a.：Read the passage about sharks and complete the fact sheet. Where shark fin soup is popular Number of sharks caught and traded every year How much numbers of some kinds of sharks have fallen in the last 20 to 30 years Two environmental groups against “finning” Task 2 仔细阅读第二段，完成下面的句子。 Bad things happen to sharks when people cut off their fins. When people catch sharks, they _ their fins and _ the shark _ into the ocean. Without a fin, a shark can no longer _ and slowly _. If sharks numbers _ too low, it will _ danger to all ocean life. Task 3 仔细阅读第三段，完成下面的句子。 Some things that environmental protection groups have done: They _ the public about finning. They have even asked governments _ to stop the sale of shark fins. 三、巩固练习 （ ）1. Not only Li Ming but I students. A. is B. are C. amD. be （ ）2. The famous writer _ one new book in the past two year. A. is writing B. was writingC. wrote D. has written （ ）3.Our country _ a lot so far. Yes. I hope it will be even _. A. has changed ,well B. changed ,good C.has changed better D. changed ,better （ ）4. The Smiths _ in China for 8 years. A. has livedB. lived C. have been D. live （ ）5. My friend was good me when I was ill. She told me that eating more vegetables is good my health. A. with; for B. to; for C. with; to D. for; with （ ）6. Li Mei is interested in drawing. Also, she is good it. A. with B. to C. at D. for Unit13 Were trying to save the earth! Section A (3a3b) Teaching aims and demands: 1.Master the key words: shark, fin, method, etc. 2.Ss get to know something about sharks. 3.Be aware of the importance of reducing pollution and protecting animals. 4.Improve Ss reading and comprehensive skills by learning the passage. Key points & difficult points: 1.Master the key words and phrases. 2.Improve Ss reading and comprehensive skills. 3.Learn to talk about pollution and environmental protection. Teaching methods: 1.Reading method 2.Discussion Teaching aid: Multi-media Teaching procedures: Step 1.Revision Get Ss to talk about the pollution around us and come up with some ways to cut down the pollution.(Purpose: Revise what they learned in the last period) Step 2.Lead-in T:Besides the pollution, there are also some endangered animals. Show some pictures of sharks on the screen, and ask Ss to think over the following questions: (1) What do you know about sharks? (2) Do you know sharks can be endangered? Why? (3) What do you think might cause a fall in the number of sharks? At the same time, teach the new words. (Purpose: Use the pictures to lead into the topic of the lesson.) Step 3.Reading Fast reading Ss read through the passage, and find out the main idea of each paragraph. (Purpose: Get to know the main idea of the passage) Careful reading Read each paragraph carefully, and judge the sentences.(Show them on the screen) Then let Ss read the passage by themselves,(the second paragraph is a little difficult for them,so get Ss to listen to the tape and pay attention to the pronunciation.) And invite the whole class to read the second paragraph together. After that, ask Ss to complete the fact sheet about sharks. (Purpose: Improve Ss reading and comprehensive skills by finishing the tasks.) Step 4. Postreading Ask Ss to retell the passage according to the key words in the table.(show the words on the screen) (Purpose: Consolidate what they learned in this class.) Step 5.Summary In this period, we mainly learned to talk about endangered animals(sharks) and how to protect them through a reading material. Step 6.Homework 1.Finish the exercises in the exercise sheet. 2.If you were sharks ,write a letter to humans . 3.Read the passage over and over again. Blackboard Design: Unit13 Were trying to save the earth! Save the sharks! cruel the sale of shark fins fin finning at the top of law in the last 20 to 30 years scientific the number of