2019屆高三英語Under the sea

sa: just now we heard some reports on shark attacks. as to whether people should hunt down and kill sharks, i think that depends on the case. if the shark kills people, like the one in the film jaws, it should be killed in order to save people’s lives. but we mustn’t kill those that never attack people because not all sharks might hurt people. we can’t kill the whole family just because one of them killed a person.
sb: i agree. shark attacks just happen once in a while. in fact, the chances of being bitten by a shark are actually very small. compared to what people have done to sharks, they are innocent. imagine that if human beings hadn’t disturbed their circumstance or destroyed their food chain or polluted sea water and so on, would that kinds of things happen so often?
sc: yes. we human beings must reflect on ourselves whether we leave enough space for sea animals, like sharks, to survive in nature. if we want too much from the sea, we must be punished, by animals, by nature or in some other ways. on the other hand, people can take measures to avoid this. for example, not to swim too close to their habitats, leave them enough space; not to fish too much, especially the certain kinds of fish for sharks’ food; protect the ocean from being polluted to provide good sea environment for all sea animals and mostly, for human beings.
suggested answers to q2:
sa: i think it matters if many sharks are killed by people. everyone knows that any species has its own position in nature, saying nothing of sharks, large and important animals. the amount of sharks will make great effect on the sea creature chain, while sea creature chain will affect the ocean, and the ocean will act on the climate straight, and as a result, on human beings. so i think animals, such as sharks, have a very close relation to people.
sb: yes. it is reported that shark populations are decreasing at a serious rate because of modern fishing technology. on the other hand, with the deepwater condition getting worse by pollution and people’s killing, more and more species are becoming endangered.
sc: as far as i know, up to 200 million sharks are killed each year. this former huge family now has no longer held advantages. their situation makes us worried. so i think government should make sure that the fishing of sharks is slowed down. meanwhile, take matures to protect them.
t: very good job! i’m very glad to find that you have got strong sense of environmental protection.
now, look at the screen and we will read two pieces of news with pictures.