精选优质文档-倾情为你奉上【2014新课标I】As a general rule, all forms of activity lead to boredom when they are performed on a routine(常规) basis. As a matter of fact, we can see this _41_ at work in people of all _42_. For example, on Christmas morning, children are excited about _43_ with their new toys. But their _44_ soon wears off and by January those _45_ toys can be found put away in the basement. The world is full of _46_ stamp albums and unfinished models, each standing as a
