More and more people around the world are taking part in some dangerous activities.Of course£¬many people have climbed the highest mountains or explored unknown parts of the world.Now£¬however£¬there are people who want to get quick pleasure from a dangerous activity£¬which may only last a few minutes or even seconds.

I think bungee jumping is a good example of such an activity.You jump from a high place 200 metres above the ground with an elastic rope tying to your ankles.You fall at up to 150 kilometres an hour until the rope stops you from hitting the ground.It is said that 2,000,000 people around the world have now tried bungee jumping.Other activities£¬such as jumping from the tall buildings and diving into the sea from the top ofhigh rocks are as dangerous as bungee jumping.