Today were going to look at one of my favourite fish - the shark.
今天，我们来看看我最喜欢的鱼——鲨鱼。
As you know, sharks have a reputation for being very dangerous creatures capable of injuring or killing humans, and I'd like to talk about sharks in Australia.
如你所知，鲨鱼以危险的生物著称，它可以伤害或杀死人类。我想谈谈澳大利亚的鲨鱼。
Sharks are rather large fish, often growing to over ten metres and the longest sharks caught in Australia have reached sixteen metres.
鲨鱼是庞大的鱼类，经常长到10米多长，在澳洲曾经捕获过最大的鲨鱼达16米。
Sharks vary in weight with size and breed, of course, but the heaviest shark caught in Australia was a White Pointer
鲨鱼的体重因尺寸和品种而不同。但是澳洲捕获的最重的鲨鱼是一只大白鲨，
that weighed seven hundred and ninety-five kilograms - quite a size!
重达795公斤，真大啊！
Sharks have a different structure to most fish: instead of a skeleton made of bone, I hey have a tough elastic skeleton of cartilage.
鲨鱼与多数鱼类的骨架不同，它有结实、有弹性的软骨骨架，而不是骨头组成的骨架。
Unlike bone, this firm, pliable material is rather like your nose, and allows the shark to bend easily as it swims.
与骨头不同，这种结实、柔韧的材质很像你的鼻子。它使鲨鱼在游的时候轻松弯曲。