1. (2023高二下·定远月考) 完形填空

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 1 at work in people of all ages. For example, on Christmas morning, children are excited about 2with their new toys. But their 3 soon wears off and by January, those 4 toys can be found put away in the basement. The world is full of5stamp albums and unfinished models, each standing as a monument to someone's passing interest. When parents bring home a pet, their child 6 bathes it and brushes its fur. Within a short time, however, the7 of caring for the animal is handed over to the parents. Adolescents enter high school with great excitement but are soon looking forward to8. The same is true of the young adults going to college. And then, how many9, who now complain about the long drives to work, 10drove for hours at a time when they first11 their driver's licenses？Before people12, they usually start to do a lot of13 things, which they never had time to do while working. But soon after retirement, the golfing, the fishing, the reading and all of the other pastimes become as boring as the jobs they14. And, like the child in January, they go searching for new15.