第一节 完形填空(共 15 小题；每题 2 分，满分 30 分)阅读下面短文，掌握其大意，然后从各题所给的 A、B、C 和 D 项中，选出最佳选项。Is your mind completely filled with thoughts of something? That’s called obsession (痴迷). When we think of obsession, we tend to think of the __1__ aspects of extreme behavior. It can be unhealthy or dangerous. However, actually“， productive obsessing” can be not only a __2__ for boredom and passivity, but also the recipe for a __3__ life. Having a productive obsession appears to __4__ people to do this, even if things get tough. In contrast, those without passion (激情) may end up letting challenges and difficulties __5__ them. But there is a fine but important __6__ between obsession and passion. So how do you __7__ a passion, and avoid the negative aspects of obsession? Whatever the project is, it should __8__ love and interest. People, who have an unexplored interest in something, but always put it off, should begin by __9__ themselves to it for a month. When people do commit themselves on something, even for a month, their brains become retrained. It __10__ hesitating and worrying and explores its own potential. Having a productive obsession leads to various mental__11__ : pleasure when things are going very well; __12__ when you are offended. The key is being prepared for these states and knowing how to handle them. Being obsessed with a(n) __13__ plan for years without putting it into practice is not productive.Going after something with __14__ may not make you outstanding, but you don’t know where it will lead until you give it a try. At the very least, it could be the __15__ to a satisfyin g and meaningful life. 【文章大意】我们行事往往最忌痴迷，不过对任何...
