Famous people often say that the key to becoming both happy and successful is to "do what you love．" But mastering a skill， even one that you deeply love， （1） 　 　a huge amount of dull work． Anyone who want to master a skill must run through the cycle of practice， （2） 　　feedback， modification， and increasing improvement again， again and again． Some people seem able to concentrate on practicing an activity like this for years and take pleasure in their gradual improvement． Yet others find this kind of focused， time﹣intensive work to be （3） 　　or boring． Why？

   The difference may turn on the ability to enter into a state of "flow，" the feeling of being completely （4） 　　in what you are doing． Whether you call it being "in the zone，" or something else， a flow state is a special experience． Since Mihaly Csikszentmihalyi developed the （5） 　　of flow in the 1970's， it has been a mainstay of positive﹣psychology research． Flow states can happen in the course of any activity， and they are most common when a task has well﹣defined goals and is at a（n） （6） 　 　skill level， and where the individual is able to （7） 　　their performance to clear and immediate feedback．

   Csikszentmihalyi suggested that those who most （8） 　　entered into flow states had an "autotelic personality （自带目的性人格）"    a disposition to seek out challenges and get into a state of flow． While those without such a personality see difficulties， autotelic individuals see opportunities to build skills． Autotelic individuals are receptive and open to new challenges． They are also （9） 　 　and have low levels of self﹣centeredness． Such people， with their capacity for "disinterested interest" have a great （10） 　　over others in developing their innate abilities．

   Fortunately for those of us who aren't （11） 　　blessed with an autotelic personalily， there is evidence that flow states can be （12） 　　by environmental factors． （13） 　　， the learning framework prescribed by Montessori schools seems to encourage flow states．

   While there isn't （yet） a pill that can turn mundane practice into a thrilling activity for anyone， it is heartening that we seem， at least to some （14） 　 　， to be able to nudge ourselves toward flow states． By giving ourselves unstructured， open﹣ended time， minimal （15） 　　， and a task set at a moderate level of difficulty， we may be able to love what we're doing while we put in the hard work practicing the things we loving doing．

（1）A． inquires	B． requires	C． acquires	D． gains
（2）A． preventable	B． maintainable	C． sustainable	D． critical
（3）A． frustrating	B． encouraging	C． concerning	D． instructing
（4）A． improved	B． indicated	C． involved	D． inspired
（5）A． concept	B． receipt	C． reception	D． condition
（6）A． alternative	B． appropriate	C． approximate	D． sufficient
（7）A． make	B． adopt	C． adapt	D． adjust
（8）A． fully	B． really	C． readily	D． accidentally
（9）A． generous	B． persistent	C． courageous	D． resistant
（10）A． addict	B． advance	C． advantage	D． admire
（11）A． necessarily	B． obviously	C． gradually	D． occasionally
（12）A． forbidden	B． functioned	C． fastened	D． facilitated
（13）A． In particular	B． For example	C． In conclusion	D．In comparison
（14）A． intention	B． degree	C． purpose	D． extension
（15）A． temptation	B． charming	C． attractions	D． distractions