题目内容
【题目】根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
The Science of Risk-Seeking
Sometimes we decide that a little unnecessary danger is worth it because when we weigh the risk and the reward, the risk seems worth taking. 【1】 Some of us enjoy activities that would surprise and scare the rest of us. Why? Experts say it may have to do with how our brains work.
The reason why any of us take any risks at all might have to do with early humans. Risk-takers were better at hunting, fighting, or exploring. 【2】 As the quality of risk-taking was passed from one generation to the next, humans ended up with a sense of adventure and a tolerance for risk.
So why aren’t we all jumping out of airplanes then? Well, even 200, 000 years ago, too much risk-taking could get one killed. A few daring survived, though, along with a few stay-in-the-cave types. As a result, humans developed a range of character types that still exists today. So maybe you love car racing, or maybe you hate it. 【3】
No matter where you are on the risk-seeking range, scientists say that your willingness to take risks increases during your teenage years. 【4】 To help you do that, your brain increases your hunger for new experiences. New experiences often mean taking some risks, so your brain raises your tolerance for risk as well.
___【5】 For the risk-seekers, a part of the brain related to pleasure becomes active, while for the rest of us, a part of the brain related to fear becomes active.
As experts continue to study the science of risk-seeking, we’ll continue to hit the mountains, the waves or the shallow end of the pool.
A. It all depends on your character
B. Those are the risks you should jump to take.
C. Being better at those things meant a greater chance of survival.
D. Thus, these well-equipped people survived because they were the fittest.
E. This is when you start to move away from your family and into the bigger world.
F. However, we are not all using the same reference standard to weigh risks and rewards.
G. New brain research suggests our brains work differently when we face a nervous situation.
【答案】
【1】F
【2】C
【3】A
【4】E
【5】G
【解析】
试题分析：本文从科学上对追求冒险和刺激进行了解释。冒险行为与大脑的工作机制有关，最喜欢冒险的时候发生在青少年时期。
【1】F空前句意提到了衡量风险和回报的标准weigh the risk and reward，选项F“然而，并不是所有人都用同样的参考标准来衡量风险和回报”符合语境，故选F。
【2】C空前句意为“冒险者在狩猎，打仗和探索方面更擅长”，选项C“这些方面更擅长意味着有更大的生存空间”符合语境，而选项C中的“those”指代的是“hunting, fighting and exploring”，故选C。
【3】A空前句意“人们形成的不同类型的性格至今仍然存在，所以，也许你喜欢赛车，也许你讨厌它”，选项C“这都取决于你的性格”符合语境，故选A。
【4】E空前句意“科学家冒险的意识是在青少年时期增长的”，选项E“这正是你开始离开家进入更大的世界的时候”符合语境，而选项E中的“when”指代的是“teenage years”，故选E。
【5】G空后句意描述的是面对危险的时候，冒险者和其他人脑部两种不同的感觉对比，前者高兴，后者害怕，选项G“新的大脑研究表明当我们面对紧张的形势时，我们的大脑运转不同”概括本段内容，故选G。
