Save the sharks拯救鲨鱼.ppt

;Unit 13 Section A (3a);Do you like pandas?;Food chain is an important part of the ecosystem.;Should we be friendly to pandas?Should we save the pandas?;Let’s go travelling… NOW!;shark;fin;fins;Some people think that sharks are cruel.;Sharks are at the top of the food chain in the ocean’s ecosystem.;Do you like sharks?;Should we be friendly to sharks?Should we save the sharks?;Read 3a quickly and find the answer.;Save the sharks!;Proposing(提出) ;Read Para.1 and think.;1. Have you heard of shark fin soup?; 鱼翅，就是鲨鱼鳍中的细丝状软骨，形似粉丝,取材于鲨鱼的背鳍、胸鳍、尾鳍。 鱼翅价格昂贵，在高档酒店，每份鱼翅羹(shark fin soup )约800-1500元人民币。 鱼翅本身并没有什么味道，烹制时要用许多调味品给鱼翅赋味。 ;2. Where is shark fin soup popular?;Why does the writer say “You are killing a whole shark each time you enjoy a bowl of shark fin soup”?;1.What do people do with sharks when they catch them? (and) 2.What do you think of finning ? (not only , but also) 3. How many sharks are caught and traded every year? 4. How much have the numbers of some kinds of sharks fallen in the last 20-30 years? ;1. What do people do with sharks when they catch them? (and); Shark fins are very expensive. But the shark meat doesn’t taste good, it is very cheap. In order to save the space for more fins, which means more money, people just cut off the sharks’ fins and throw them back into the ocean. This is called “finning”.; 2.What do you think of finning ? (not only , but also) ;=; 2.What do you think of finning ? ; Saving Sharks is saving ourselves! ; 3. How many sharks are caught and traded every year? 4. How much have the numbers of some kinds of sharks fallen in the last 20-30 years? ;Save the sharks!;What do the environmental protection groups around the world do to fight against “ finning” ? 2. Have any scientific studies shown that shark fins are good for health? ; 科学研究显示，鱼翅中胶原蛋白含量虽然很高，但缺少一种必需的氨基酸(色氨酸)，不容易被人体吸收。鱼翅的营养价值还不如牛奶，鸡蛋。 另外