英语人教版九年级全册Unit 13 Save the sharks!3a.doc

Unit 13 Were trying to save the earth! Section A (3a-3b) 一、教学目标：1. 语言知识目标基本词汇： shark, fin, cruel. harmful, chain, ecosystem, industry, law, scientific, afford,基本词组：be harmful to, at the top(of sth.), take part in, turn off, take action, throw away，food chain, in the last 20 to 30 years, no longer.基本句型：Many people think that sharks are too strong to be endangered, but they are wrong. No scientific studies have showed that shark fins are good for health. This is not only cruel but also harmful to the environment. If sharks numbers drop too low, it will bring danger to all ocean life.2. 情感目标: be friendly to nature, call for people not Finning any more.3. 能力目标：use reading skill（skimming，scanning，careful reading）to get the main idea.二、教学重难点： How to catch the main idea of the passage and how to call for people to protect the endangered animals.三、教学用具：多媒体四、教学方法： Skimming, Scanning, careful reading五、教学步骤:步骤教师活动学生活动Step1 Presentation（pre-reading）视频导入：由蓝色美丽的大海导入美丽海洋的小视频，看1min的视频，回答What have you seen in the video? So different kinds of animals will come to the oceans ecosystem. What about this one?This is also the food chain. What kind of animal is at the top of the food chain? So the sharks are at the top of food chain.People think that the sharks are too strong to be endangered, are they right?Because many sharks are endangered now. So today well learn a passage about saving the shark.All kind of animalsFood chain Shark!No Step2 SkimmingRead the passage quickly. Find out what the main idea of each paragraph is? Paragraph1 environmental groups Paragraph 2 shark fin soupParagraph 3 endangered sharksSo we have the main structure of this passage. The 1st paragraph tells us about something about the shark fin soup. The 2nd paragraph describes the endangered sharks. The 3rd paragraph shows some groups that are against finning.Step3 Intensivereading(careful reading)1）Read Para 1. and answer Where is shark fin soup popular? What does it mean when people enjoy a bowl of shark fin soup?Lets see what do you know about Para. 1In southern ChinaTheyre killing a whole shark when they enjoy a bowl of shark fin soup.2）Read Para 2.In this paragraph, we know shark fin soup is very popular in southern China, when people enjoy a bowl of shark fin soup, it means that people is killing a whole shark. But how people kill the shark? Lets see a short video about sharks, then answer the following questions.1. How do people deal with them when they catch the sharks?2. Without a fin, what will happen to the shark?What do you think of this kind of situation?Read the 2nd paragraph and then tell me the answers1.Why is it harmful to the environment?2. What do the two numbers mean?That means sharks are at the top of the food chain, if their numbers drop too low, it will bring danger to all ocean life.What does the “70 million” mean?What is the meaning of “90percent”?The two numbers show the present situation of the endangered sharks.Should people stop killing the sharks?This is so much about Para. 2. Now lets fill in the blanks according to the 2nd paragraph.a. The sharks are _ the food chain in the oceans ecosystem.b. People _their fins and _them _ ocean.c. A shark can _and slowly dies.d. If sharks numbers_, It will _all ocean life.Lets retell this paragraph according to these key words. Lets have a try.(教师带两遍)How about retelling this part according to these pictures. Lets retell together. (两遍)How about retelling this part according to these pictures. Lets retell together. (两遍)1. They cut off their fins. Throw them back into the ocean.2. dieThis is not only cruel but also harmful to the environment.Sharks are at the top of the food chain, so if their numbers drop too low, it will bring danger to all ocean life.Around 70 million sharks are caught and traded every year.The numbers of some kinds of sharks have fallen by over 90 percent in the past 20 to 30 years.If we cant stop the killing,the sharks will disappear.3）Read Para 3. and answerWe have talked about the first two paragraphs. Now lets see the last paragragh.In this paragraph, two groups are mentioned, find out what they are.2. What are they doing and what have they done? I have some information about these two environment groups.We know these two groups are trying their best to save the animals.Since so many people enjoy the shark fin soup.So why do we eat? From this class, we know that the sharks are endangered, butAre the shark fins really good for healthAre the sharks the only endangered animals?Wildaid and WWFThey are teaching the public about “finning”.They have even asked governments to develop laws(法律) to stop the sale of shark fins.No scientific studies have shown that shark fins are good for health.Ste