In interviews, famous people often say that the key to becoming both happy and successful is to "do what you love." But mastering a skill,【C1】______one that you deeply love, requires a huge【C2】______of dull practice. Any challenging activity requires【C3】______and concentrated practice. Anyone who wants to master a skill must【C4】______through the cycle of practice, critical feedback, modification, and progressive improvement again, again, and again. Some people seem able to【C5】______practicing an activity like this for years and take【C6】______in their gradual improvement.【C7】______others find this kind of concentrated, time-intensive work to be【C8】______or boring. Why? The difference may turn on the ability to enter into a state of "flow," the feeling of being completely【C9】______what you are doing. A flow state is a special experience. Flow states can happen in the【C10】______of any activity, and they are most common when a task has well-defined goals and is at an appropriate skill level, and where the individual is able to adjust their performance【C11】______clear and immediate feedback. Flow states turn the dull practice into an autotelic activity—that is, one that can be enjoyed for its own sake, rather than as a【C12】______to an end or for attaining some external reward. That raises the question of how we can turn this to our【C13】______: How can we get into a flow state for an activity that we want to master, so that we enjoy both the process of【C14】______skills and the rewards of being a master? Psychologists suggested that those who most readily entered into flow states had an "autotelic personality". For those who aren't necessarily【C15】______with an autotelic personality, there is evidence that flow states can be【C16】______by environmental factors. While there isn't yet a pill that can turn dull practice into a【C17】______activity for anyone, it is encouraging that we seem, at least to some degree, to be able to push ourselves toward flow states【C18】______we are given unstructured, open-ended time,【C19】______distractions, and a task set at a【C20】______level of difficulty.

【正确答案】 A

【答案解析】解析：破折号后面的内容是对an autotelic activity(本身有目的的活动)的进一步解析，表明“这一活动本身就是乐趣(can be enjoyed for its own sake)，而不是达到某一目的(to anend)、获得某些外在回报(attaining some external reward)的……。”as a means是常用的搭配。意为“作为一种方式、手段”，A项means符合语义逻辑。

【正确答案】 C

【答案解析】解析：上句讨论的对象是随时都有可能进入流畅状态的人，他们具有“自带目的性人格”(“autotelic personality”)。相应地，此句谈论的对象应是那些不具有“自带目的性人格”的人。be blessed with是常用搭配，意为“幸运地享有”，与前面的否定词aren't一起说明有些人并不是与生俱来就有自带目的性人格。故C项blessed正确。