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Shark attacks There are nearly 400 different types of sharks, but only about 30 types are known to have attacked human beings. Many people know that the most dangerous shark is the great white shark, probably because they have seen the film Jaws. However, two other sharks are also rather dangerous: the tiger shark and the bull shark. To reduce the risk of a shark attack, you should follow these suggestions. oDo not swim in the dark. Sharks can still see you but you cannot see them. oDo not go swimming in the ocean if you have a fresh wound. Sharks can smell blood over a long distance. oDo not wear bright clothing or jewellery, because sharks are attracted to the flash of colours and bright objects. oStay in groups, as sharks usually avoid large numbers of people. Recently, shark attacks have been increasing as water sports are becoming more popular. If a shark attacks you, follow the advice below. oKeep calm. Do not panic. oHit the shark on the nose with your fist. oStick your finger in the shark’s eye. Don’t be frightened by sharks: you are 30 times more likely to be hit by lightning than be attacked by a shark. 鲨鱼攻击 有将近400种不同种类的鲨鱼，但我们知道只有约30种鲨鱼攻击过人类。许多人知道最危险的鲨鱼是大白鲨，也许是因为他们看过电影《大白鲨》吧。然而，另外两种鲨鱼也相当危险： 虎鲨和牛鲨。和许多人可能会认为的正好相反，证据显示鲨鱼极少攻击人类。 鲨鱼攻击人类的情形有三种。在主要的情形中，鲨鱼攻击你是因为它把你错当成了一条鱼，但当它尝出人肉的味道时，就会决定放弃并游开。在第二种情形中，鲨鱼会用鼻子推搡你，以弄清你是否适合被食用，如果它觉得适合，便会咬你。而在第三种情形中，鲨鱼会等待你游过，然后突然攻击你。后两种攻击类型对人类来说往往是致命的。 遵循这些建议，以降低被鲨鱼攻击的风险： o不要在黑暗中游泳。在黑暗中，鲨鱼仍能看得见你，而你却看不见它们。 o如果你有刚受伤的伤口，不要在海洋中游泳。鲨鱼在很远处便能嗅到血腥味。 o不要穿鲜亮的衣服或佩戴珠宝首饰，因为鲨鱼会被颜色或明亮物体的闪光吸引。 o集体行动，因为鲨鱼通常会避开人群。 最近，随着水上运动更加普及，鲨鱼攻击事件也在持续增多。如果鲨鱼攻击你，遵循以下建议： o保持冷静。不要慌张。 o用你的拳头击打鲨鱼的鼻子。 o用你的手指戳鲨鱼的眼睛。 不要害怕鲨鱼：你被闪电击中的几率要比受到鲨鱼袭击的几率大三十倍。 |
