Around the world more and more people are taking part in dangerous sports and activities. Of course there have always been people who have looked for adventure——those who have climbed the highest mountains, traveled into unknown parts of the world or sailed in small boats across the greatest oceans. Now, however, there are people who look for an immediate excitement from a risky(冒险的) activity which may only last a few minutes or even seconds. I would consider bungee jumping(蹦极跳) to be a good example of such an activity. You jump from a high place(perhaps a bridge or a hot-air balloon) 200 metres above the ground with an elastic(弹性的) rope tied to your ankles. You fall at up to 150 kilometers an hour until the rope stops you from hitting the ground. It is said that about 2 million people around the world have now tried( bungee jumping. Other activities which most people would say are as risky as bungee jumping include jumping from tall buildings and diving into the sea from the top of high cliffs(悬崖). Why do people take part in such activities as these? Some psychologists suggest that it is because life in modern societies has become safe and boring. Not very long ago, people's lives were constantly in danger. They had to go out and hunt for food, diseases could not easily be cured(治愈), and life was a continuous battle for survival. Nowadays, according to many people, life offers little excitement. They live and work in comparatively safe conditions; they buy food in shops; and there are doctors and hospitals to look after them if they become ill. The answer for some of these people is to look for danger in activities such as bungee jumping.1. A best title for the text is .A. Dangerous Sports: What and WhyB. The Boredom of Modern LifeC. Bungee Jumping: Is It Really Dangerous?D. The Need for Excitement2. More and more people today .A. are trying activities such as bungee jumpingB. are climbing the highest mountainsC. are coming close to death in sportsD. are looking for adventures such as traveling into unknown places3. In bungee jumping, you .A. jump as high as you canB. slide down a rope to the groundC. attach(系) yourself to a rope and fall to the groundD. fall towards the ground without a rope4. People probably take part in dangerous sports nowadays because .A. they have a lot of free timeB. they can go to hospital if they are injuredC. their life is short of excitementD. they no longer need to hunt for food