师：All right. Class begins. Good morning, everyone. Sam, please. So, guys, look, have you ever watched the film Jaws?
生：No.
师：Okay. Actually, it's a very influential movie in the 1970s. It was adapted from the No. 1 bestseller by Peter Benchley. Do you want to watch it?
生：See.
师：All right. Just guess what happened to the woman in the movie?
生：She what? She is…
师：Attacked? Yes. Maybe attacked by… Yes. Something shocks. So what do you think of sharks? Use one word to describe them.
生：Danger. The shark is…
师：Dangerous and in danger. Okay. Yes. What else? What do you think of sharks?
生：Well, it was very huge and I am…
师：Afraid of it. Huge. Alright. So, actually most people think sharks are dangerous, powerful, and they are afraid of them. And actually, it's a long - held idea by lots of people. But is it the truth? And cute. Yes. You love, you don't think sharks are cute? So in today's class, we are going to uncover the secrets of sharks. So now please read paragraphs 1, 2, 3, and complete this chart. Here we go. The chart is on page 4. So, okay. All right class, so let's see together what happened to the sharks. Look at the slide. So the film Jaws strengthened people's belief that sharks were… that would…
生：Yes. So people stopped swimming and people started cutting things to make… Yes. Have you ever had shark soup?
生：Yes and no.
师：Okay. So as a result, the number of sharks began to fall.
生：Around the…
师：World quickly. Yes. So you know what? Actually, most sharks take many years to become sexually mature. Female great sharks even take 30 years before they can give birth to baby sharks. So they're extremely vulnerable, weak, and easily hurt by over - fishing. So just imagine if sharks disappear, what would happen to the sea ecosystem? Just think of the food chain. What will happen? Any idea? Okay. Would you like to say something?
生：Maybe the smaller fish will boom.
生：Boom and the balance of the sea…
生：Will be broken.
师：Will break down. All right, thank you. So, actually the balance of the sea ecosystem would be damaged. So in order to keep the balance of the sea ecosystem, sharks are very, yes, important. So look, actually the life on our earth is correlated and our human activities may have a great impact on sharks and the sea ecosystem as well. So just think if Peter Benchley eventually knew the horrible results, how would he feel? Maybe you feel…
生：Guilty.
师：Yes. Okay, so now please read paragraphs 4 and 5 and see if your prediction is right. Here we go.
师：Guys, I notice that you have finished. So let's see what changes have occurred. So at first, Peter Benchley saw the awful side of sharks, the finning of sharks. So it caused a deep change in his attitude and action. He started to see humans as… and his book was… So he started to protect sharks. And how about people? People began…
生：Interesting. Sharks. And protect sharks from…
师：Yes. And let's see how much do you know about the shark's behavior after reading this text? Do sharks target people? Do sharks see people as food? So what do they see? What do they eat?
生：Fish.
师：Yes. And actually, the biggest shark in the ocean only eats tiny plankton. So if sharks attack people, they attack us by… Yes. How many people are killed by sharks around the world every year? Around 6. And guess how many sharks are killed by people every year? Just guess.
生：Millions of…
师：10 million? 10…
生：Millions of sharks a year.
师：And actually the number is 100 million. And that means by the time you are having this class, 10,000 sharks are being killed right now. Yes. And that's a huge number. See, this is a huge contrast. So let's see how awful the sight of finning is. Right now, sharks are killed at a staggering rate. They're deliberately caught for food, accidentally caught in nets or long lines set for other fish. They're also harvested in their millions for their fins. To make more shark fin soup, a delicacy that sells for 650 dollars a kilo, fueling a cruel trade which sees the rest of the shark being thrown back into the sea, often still alive. A third of all shark species are now threatened with extinction, and this is being driven by human activities. So guys, so far, do you think, how do you feel? Do you think sharks are dangerous?
生：No.
师：So they are, yes, sharks are endangered. So why do you think humans kill sharks? Any idea? So I would like to ask, you just mentioned that you have had shark soup. So now how do you feel?
生：It's very…
师：Foolish? Okay, so, alright. And how do you feel? Right? Sit down, please. Would you have shark soup later?