1. BASE Jumping (sometimes written as B.A.S.E. jumping): BASE stands for Buildings, Antennae[天线], Spans[桥墩之间的一段桥梁] (bridges) and Earth (cliffs)—these being the fixed objects that masters of this incredibly dangerous sport jump from. BASE jumpers will jump with a parachute[降落伞] off any tall structure including skyscrapers, electrical towers, bridges and cliffs. In the past, BASE jumpers have leaped from the Golden Gate Bridge, the Eiffel Tower and the Empire State Building. People who try this sport almost always end up arrested (it's not exactly legal) and some don't even live long enough to get arrested. (We told you it was dangerous.) 
1. 定点跳伞：定点（BASE）指的是大楼、天线、跨度大的建筑物（大桥）以及地表（悬崖）——从事这项危险性极高的运动的高手从这些固定物上一跃而下。定点跳伞运动员背着降落伞从任何高大的建筑（如摩天大楼、电塔、桥梁和悬崖）上跳出。以前，定点跳伞运动员曾经在金门大桥、埃菲尔铁塔和帝国大厦跳落。尝试这项体育的人到最后往往会被抓走（因为这不合法），有些甚至还活不到被捕呢。（我们已经告诉你它很危险。）
2. Free Diving: Divers will plunge[跳进] up to 400 feet underwater in a single breath. At the 2001 Free Diving World Cup, 15 people had to be rescued because of blackouts[眩晕] caused by their brains not getting enough oxygen[氧气].
2. 自由潜水：潜水员要一口气潜入深至400英尺（122米）的水下。在2001年的自由潜水世界杯赛中，15人由于脑部缺氧失去知觉，被人从水中救了起来。
3. Cave Diving: Imagine being more than 100 feet underwater in a deep, cold and dark cave. Divers are well-trained but there are so many things that can go wrong which is why this is one of the world's most dangerous sports. You can lose your way, run out of air, your equipment can fail or you can be eaten alive by a cave creature.
3. 洞穴潜水：试想一下身处水下一百多英尺（约30米）的一个深不见底、冰冷黑暗的洞穴里。虽然潜水员训练有素，但很多事情会出岔子，所以洞穴潜水是世界上最危险的运动之一——你可能会迷路，氧气可能耗尽，装备也许会失灵，或者会被某种洞穴生物生吞活咽。
4. Speed Skiing: This is the world's fastest non-motorized sport and one of the world's most dangerous sports.
Skiers wear special skis and aerodynamic[空气动力学的] suits to fly down a hill at speeds up to 160 miles per hour! That's almost as fast as a racecar! One crash often means death.
4. 速度滑雪：这是世界上最快的非机动车运动，也是最危险的运动之一。滑雪者使用特殊的滑雪板和空气动力学滑雪服从山上飞下，时速可高达160英里（257千米）！这个速度和赛车差不多！撞上什么往往就是死路一条。
5. Rock Fishing: Unless you're a fish, how can fishing be one of the world's most dangerous sports? Rock fishing involves casting[投，抛] a line into the ocean from the shoreline.
People often forget about the tides and are swept away[一扫而空] or are dragged[拖曳] underwater by massive waves. In 2001, 15 people in Australia died while rock fishing.
5. 矶钓：除非你是鱼，不然钓鱼怎么会是世界上最危险的运动之一呢？矶钓是在海岸边把线抛入海中。人们往往会忘记潮汐变化而被卷走，或者被大浪拖下水。2001年，澳大利亚有15人在进行矶钓时死亡。
6. Bull Riding: Jump on a raging[狂怒的] bull who hates your guts[勇气] and try to hang on. That's the game of bull riding. Some of the bulls weigh over 2000 pounds and can throw a rider off in a split second[瞬间]—and may even stomp[重踏] on the rider afterwards. Riders suffer broken bones, punctured[刺穿] lungs and even death.
6. 骑牛比赛：你跳上一头狂怒的公牛并试着不被甩下来，而那头牛对你的胆大包天恨之入骨。那就是骑牛比赛。有些公牛体重超过2000磅（907公斤），它们能在瞬间把骑牛者甩下来——之后甚至可能会踩上几脚。骑牛者会因此骨折、肺部破裂甚至死亡。
7. Supercross: Athletes fly in the air on a motorcycle while doing backflips[后空翻], taking their hands off the handlebars and doing other death-defying stunts[特技].
7. 超级摩托车：运动员驾驶摩托车在空中飞跃，同时要做后空翻、双手离开把手以及表演其他玩命的特技动作。
8. Solo Yacht Racing: In a race around the world, sailors encounter waves, sharks, hurricanes and even pirates. The nearest help can be hundreds of miles away and racers have no control over the conditions they run into. With no one nearby to help them out, racers can lose the race and their lives.
8. 单人游艇赛：在环球比赛中，船员会遇到海浪、鲨鱼、风暴甚至海盗。最近的支援也可能远至数百英里以外，而且比赛选手无法掌控他们遇到的状况。在周围没有人帮忙的情况下，选手可能会输掉比赛，甚至丢掉性命。
9. Street Luging[坐在平底雪橇里滑雪]: Highly modified[改良的] skateboards are used to race down a hill at speeds of up to 80 miles per hour. The pioneers of this sport originally raced down hills in the middle of traffic which made it even more risky. There are now special luges and equipment for the sport which make it much safer. But hey, you're still hitting pavement when you crash.
9. 街橇：运动员使用经过精良改装的滑板从山上以80英里（129千米）的时速冲下来。这项运动的先驱们更是从交通繁忙的山上滑下，使得该项运动更加危险。现在，这项运动配备有特制的雪橇和装备，以增加其安全性。但是你摔倒后仍然会撞到路面上哦。
10. Riding a Bike: We've all heard the phrase “it's as easy as riding a bike.” Well, riding a bike can still be dangerous. More kids break bones or dislocate[脱臼] joints riding bicycles than any other sport.
10. 骑自行车：我们都听过“就像骑自行车那么容易”这个说法。其实，骑自行车还是有危险性的。因为骑自行车而导致骨折或脱臼的孩子比进行其他运动的要多呢。