题目

People often talk as if shyness is a disease or mental condition that call be cured．I prefer to think of it as an emotional disability．It’s something we are born with and something we carry with us in our entire lives．There are too many people，however, who seem to be determined to find some way of doing away with their shyness．In my opinion．it’s a waste of time．I don’t mean hat we should do nothing about it；quite the contrary, I think we need to separate the basic fact of shyness from our ability to take part in a social environment． Look at one of the most famous shy p相传春秋时干将在灵山设炉造剑，三年成剑，锋利无比．剑刃锻造得锋利无比，主要是为了减小受力面积，增大________．当年的“淬剑池”如今仍位于山颠（如图所示），淬剑是指将炽热的金属剑迅速与冷水接触，以增加其硬度．淬剑过程中，金属剑的内能________ （选填“增大”或“减小”），这主要是通过________方式改变了金属剑的内能．