人教版九年级Unit 13 We're trying to save the earth!-Section A 2a—2d-ppt课件-(含教案+音频)-公开课-(编号：702e5).zip

What kinds of pollution do these pictures show? Noise Pollution Air Pollution Water Pollution 2. Lead in What kind of animals are they? Sharks Sharks What kind of soup is it? what is the relationship between the shark and the shark fin soup? Lets watch a video together! (Read the title, the first and the last sentence of each paragraph and match the main ideas.) Talk about shark fin soup. Sharks are endangered now. Call on people against eating shark fins. Para. 3 Para. 1 Para. 2 (Skim the passage and complete the fact sheet.) 3a3a Where shark fin soup is popular Number of sharks caught and traded every year How government can hlep Two environmental groups against “finning” in southern China 70 million develop laws to stop the sale of sharks fins WildAid the WWF Step1 Skimming 4. While-Reading ( Listen to the recording, undeline the phrases below . ) 1. hear of Step2 Scanning 听说听说 割掉，切断割掉，切断2. cut off eg: Many have heard of shark fin soup. eg: When people catch sharks, they cut off their fins. 3. be harmful to对对.有害处有害处 eg: This is not only cruel, but also harmful to the environment. 5. bring danger to 6. so far到目前为止到目前为止 eg: If their numbers drop too low, it will bring danger to all ocean life. eg: So far, no scientific studies have shown that shark fins are good for haelth, so why eat them? 4. no longer eg: Without a fin, a shark can no longer swim and slowly dies. A whole shark has been killed each time you enjoy a bowl of shark fin soup. When people catch sharks, they _ their fins and throw the shark back into the ocean. Without a fin, a shark can _ swim and slowly dies. If sharks numbers drop too low, it will _ all ocean life. And This is not only cruel, but also _ the environment. cut off no longer bring danger to The numbers of by harmful to Step3 Intensive Reading . Paragraph 1 (Write T for true or F for false before each sentences.) Sharks fin（鱼鳍）（鱼鳍）soup is famous and expensive in northern China. Youre killing a whole shark when you enjoy a bowl of shark fin soup. F T in southern China. (There are three paragraphs of this text, complete three kinds of questions one by one. ) people enjoy _ fishermen _, _, then _ _ have fallen quickly a bowl of shark fin soup catch sharks cut their fins throw them into the ocean The numbers of some kind of sharks II. Paragraph 2 Fill in the chart. 1.WildAid and the WWF are environmental protection groups in China. 2. Two environmental groups call on the government to develop laws to stop the sale of shark fins. 3. Sharks fins are good for health. F T F around the world So far, no scientific studies have shown that shark fins are good for health. III. Paragraph 3 (Write T for true or F for false) 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. 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 5. Post-Reading Fill in the blanks with the words in the box. 3b3b If you are a shark. What do you want to say to human beings? What do you want human beings to do to stop killing sharks? 7. Summary Sharks Shark fin soup Sharks are endangered Fishermen catch sharks Save the sharks! 请你以鲨鱼的角度给人类写一封信，请你以鲨鱼的角度给人类写一封信， 呼吁人类停止捕杀鲨鱼，呼吁人类停止捕杀鲨鱼，80个词左右。个词左右。 内容包括：内容包括： 1）介绍鲨鱼以及鲨鱼的生存环境；）介绍鲨鱼以及鲨鱼的生存环境； 2）讲述人类不应该捕杀鲨鱼的理由；）讲述人类不应该捕杀鲨鱼的理由； 3）呼吁人类与鲨鱼和平相处）呼吁人类与鲨鱼和平相处 Heal the world, Make it a better place, For you and for me and the entire human race. -Michael Jackson 教学准备 1. 教学目标 (一) 知识与技能 1. To learn the following words and expressions.bottom, coal, public, ugly, cost, advantage, method, cruel, harmful, afford. 2. To understand the passage on Page 99. (二) 过程和方法 3. To get a general knowledge of pollution by reading and role-play. 4. To know about how to reduce pollution through discussion. (三) 情感态度和价值观 5. After learning this part, every student will be aware of the serious situation of pollution and determined to take action to protect our earth from now on. 2. 教学重点/难点 一、 教学重点 1. How to use the following words and expressions: cost, advantage, harmful, afford, used to, play a part in 2. to understand the passage on Page 99. 二、 教学难点 1. How to use the following words and expressions: cost, advantage, harmful, afford, used to, play a part in 2. to understand the passage on Page 99. 3. 教学用具 4. 标签 教学过程 1、课堂导入 Step 1 Lead-in 1) Show some pictures about pollution and ask students to discuss whats the danger of each kind of pollution. 2) Here are some words are related to different kinds of pollution. Write them in the box below, and you can add more words. loud music, littering, building houses, cars,ships, mobile phones, rubbish, factories, planes, smoking. 3) Role-play the following conversation and make your own conversations about the kinds of pollution above. A: The river was dirty. Even the bottom of the river is full of rubbish.来源:学*科*网 B: But it used to be so clean. A: Yes, but people are littering in the river. B: Everyone in the town should play a part in cleaning it up. 2、课堂讲授 Step 2. Reading 1) Fast-reading Now turn to page 99 and read the page quickly to find answers to the sheet. 2) careful-reading Read the passage again and fill in blanks. so,although, if but, when Many people do not realize they are killing a whole shark _ they enjoy a bowl of sharks fin soup. Sharks are at the top of the food chain,_ if their numbers drop, the oceans ecosystem will be in danger. Many think that sharks are too strong to be endangered, _ they are wrong. _ there are no scientifiic studies to support this, a lot of people believe that sharks fins are good for health. Sharks may disappear one day _ we do not do something to stop the sale of sharks fins. Possible answers:when, so, but, although, if 3) Studying useful words and expressions. cost v 价钱为，花费 n.价钱，代价；花费，费用 The cost of a loaf of bread has increased five-fold. 一条面包的价钱增 长了 4 倍。Its going to cost me over $100,000 to buy new trucks. 买几辆新卡车将花掉我 10 万多美元。 harmful adj.对有害的；能造成损害的；不利；不良 Smoking is harmful to our health. 吸烟对人类的健康有害。 used to do 过去一向，过去时常，过去曾（而现在不再）做 Who used to do your laundry? 谁过去一直为你洗衣服？ She used to wash dishes in a restaurant.她曾经在餐馆里洗过盘子。 afford vt.买得起；担负得起；提供；给予 We couldnt afford to buy a new car. 我们买不起新的车。 We cant afford to wait. 我们等不起。 My parents cant even afford a new refrigerator. 我父母甚至买不起一台新冰箱。 play a part in 扮演某角色;与有关，对有影响 Id like to play a part in their discussion. 我愿意参与他们的讨论。 Education is playing a big part in environmental protection. 教育在环境保护中起着很大作用。 He played a part in his favorite TV show. 他在他最喜欢的电视节目中扮演了一个角色。 课堂小结 Step 5. Summarize Look back on what we have learned. 1. How to protect environment. 2. Useful languages : be harmful to, at the top of, at the bottom of. Solve problems 2、作业布置 Homework : make a conversation with your partner about what you can do to reduce pollution. 课后习题 Step 3 Exercises Translate the following phrases: 1. 对有害 2. 买得起. 3. 在中起作用 4. 过去常常 5. 解决问题 6. 起作用 7. 听说 8. 在顶部 9. 在底部 10. 切下，割下 Step 4 Activities In your group make a list of things people can do to help the environment. 板书