范例　　Off the top of my head, the most energetic person that I’ve ever known is my best friend Tom. If I’m not mistaken, I met him in high school a few years ago. We really hit it off. He struck me as someone energetic and positive.　I suppose the first reason would be that he lives a really active and positive way of life. I mean, during the time we spent in school, he was always bright and early for a series of morning routines. The first thing he did was to do morning exercise, stretching his arms and legs at half past six or so. Then he would take a short walk between the dorm and school for a few times,taking in the fresh and crisp morning air. Only after such a fixed routine would he begin to attend the class. And during the class, he never nod off even for a second while the rest of us were really drowsy and exhausted from all the monotonous teaching from teachers for the whole day. Also, what really puzzled me is that he could pay full attention to every single detail the teachers gave during the class and answered questions to their satisfaction. Tired from the heavy academic workload, most of us suffered from burnout in the evening. All we ever wanted is a few idle moments of rest and relaxation. That was why we either listened to music or play some computer games to take our mind off things.

　　However, he was still pumped up with energy and threw himself to learning foreign languages in the evening until midnight. I got to say this really took me aback.　　So you could see he was really some alive and energetic. What really sets him apart from others is that he doesn’t like the idea of an idle and sedentary lifestyle, maybe that’s something I think all of us should learn from, especially during such a time of uneasiness and uncertainties.

　　Language Bit

　　off the top of my head 我首先想到的是

　　hit it off 一见如故，很快就熟悉彼此

　　strike me as someone adj. 给我留下…的印象

　　be bright and early for sth. 早起干某事

　　take in 吸入

　　the crisp air 新鲜的空气

　　fixed routine 固定要做的事情

　　nod off 打瞌睡，犯困

　　be drowsy 困倦的

　　be exhausted from doing sth. 因为做某事而精疲力竭

　　monotonous 单调，乏味的

　　what puzzles me is 让我感到困惑的是

　　to one’s satisfaction 让某人满意

　　?suffer from burnout 感觉很累

　　idle 闲散的

　　take one’s mind off things 放下思想负担，不去想某事

　　be pumped up with energy 精力旺盛

　　throw oneself to sth. 专心做某事

　　take me aback 让我感到吃惊，惊讶

　　set sb. apart from the others 让某人与其他不同的是，区别于其他人

　　sedentary lifestyle 久坐不动的生活方式

　　uneasiness 不安

　　a time of uncertainties 充满不确定性的时候